PKB4204BSIPHSMLB/B - Ericsson, Inc.

Ericsson Internal

PRODUCT SPECIFICATION 1 (4)

Prepared (also subject responsible if other) No.

SEC/S Marshall Wang BPOW 00201-1/1301 Uen

Approved Checked Date Rev Reference

2013-02-07 B Z

Key Features

 Industry standard low profile Eighth-brick

58.4 x 22.7 x 10.1 mm (2.3 x 0.894 x 0.397 in.)

 High efficiency, typ. 95 % at 12 V half load

 1500 Vdc input to output isolation

 Meets isolation requirements equ ivalent to basic

insulation according to IEC/EN/UL 60950

 More than 3.4 million hours MTBF

General Characteristics

 N+1 parallelable

 Input under voltage protection

 Over temperature protection

 Output over voltage protection

 Output short-circuit protection

 Remote control

 Optional baseplate

 Highly automated manufacturing ensures quality

 ISO 9001/14001 certified supplier

Safety Approvals Design for Environment

Meets requirements in high-

temperature lead-free soldering

processes.

Limited Internal

TABLE OF CONTENTS 1 (1)

Prepared (also subject responsible if other) No.

SEC/S Marshall 001 52-EN/LZT 146 384 Uen

Approved Checked Date Rev Reference

SEC/D (Julia You) 2009-12-17 D

Contents

Ordering Information ............................................................. 2

General Information ............................................................. 2

Safety Specification ............................................................. 3

bsolute Maximum Ratings ............................................................. 4

Electrical Specification

5.0 V, 40 A / 200 W PKB 4201B PI ...................................... 5

12.0 V, 20 A / 240 W PKB 4204B PI ...................................... 8

13.0 V, 20 A / 252 W PKB 4207LB PI .................................. 11

14.0 V, 10 A / 140 W PKB 4207KB PI .................................. 14

EMC Specification ........................................................... 17

Operating Information ........................................................... 18

Thermal considerations ........................................................... 19

Connections ........................................................... 20

Mechanical Information ........................................................... 21

Soldering Information ........................................................... 24

Delivery Information ........................................................... 25

Product Qualification Specification ........................................................... 26

PKB 4000B series Intermediate Bus Converters

Input 36-75 V, Output up to 40 A / 252 W EN/LZT 146 384 R4A May 2013

Technical Speciﬁcation

Ericsson Internal

PRODUCT SPECIFICATION 2 (4)

Prepared (also subject responsible if other) No.

SEC/S Marshall Wang BPOW 00201-1/1301 Uen

Approved Checked Date Rev Reference

2013-02-07 B Z

Ordering Information

Product program Output

PKB 4201B PI 5 V, 40 A / 200 W

PKB 4204B PI 12 V, 20 A / 240 W

PKB 4207LB PI 13 V, 20 A / 252 W

PKB 4207KB PI 14 V, 10 A / 140 W

Product number and Packagin g

PKB4XXXB PI n1n2n3n4n5n6

Options n1 n2 n3 n4 n5 n6

Mounting 

Remote Control logic 

Baseplate



Increased stand-off



Pin length



Delivery package information



Options Description

Through hole

Surface mount

Negative *

Positive

Open frame *

Baseplate

Increased stand-off

5.30 mm *

3.69 mm

4.57 mm

Tray

Example: a standard through hole, positive logic, baseplate

with increased stand-off short pin product would be

PKB4204BPIPHSMLA.

* Standard variant (i.e. no option selected).

General Information

Reliability

The failure rate () and mean time between failures

(MTBF= 1/) is calculated at max output power and an

operating ambient temperature (TA) of +40°C. Ericsson

Power Modules uses Telcordia SR-332 Issue 2 Method 1 to

calculate the mean steady-state failure rate and standard

deviation ().

Telcordia SR-332 Issue 2 also provides techniques to

estimate the upper confidence leve ls of failure rates based

on the mean and standard deviation.

Mean steady-state failure



Std. deviation, 

293 nFailures/h 37.1 nFailures/h

MTBF (mean value) for the PKB-B series = 3.4 Mh.

MTBF at 90% confidenc e level = 2.9 Mh

Compatibility with RoHS requirements

The products are compatible wit h the rel evant clauses and

requirements of the RoHS directive 2011/65/EU and have a

maximum concentration value of 0.1% b y weight in

homogeneous materials for lead, mercury, hexavalent

chromium, PBB and PBDE and of 0.01% by weight in

homogeneous materials for cadmi um.

Exemptions in the RoHS directive utilized in Ericsson

Power Modules products are found in the Statement of

Compliance document.

Ericsson Power Modules fulfills and will continuously fulfill

all its obligations under regulation (EC) No 1907/2006

concerning the registration, evaluation, authorization and

restriction of chemicals (REACH) as they enter into force

and is through product materials dec larations preparing for

the obligations to communicate information on substances

in the products.

Quality Statement

The products are designed and manufactured in an

industrial environment where quality systems and methods

like ISO 9000, Six Sigma, and SPC are inten sively in use to

boost the continuous improvements strateg y. Infant

mortality or early failures in the prod ucts are screened out

and they are subjected to an ATE-based final test.

Conservative design rules, design reviews and product

qualifications, plus the high competence of an engaged

work force, contribute to the high quality of the products.

Warranty

Warranty period and conditions are defined in Ericsson

Power Modules General Terms and Conditi ons of Sale.

Limitation of Liability

Ericsson Power Modules does not make any other

warranties, expressed or impli ed including any warranty of

merchantability or fitness for a particular purp ose

(including, but not limited to, use in life support

applications, where malfunctions of product can cause

injury to a person’s healt h or li fe).

Ericsson AB 2013

The information and specifications in this technical

specification is believed to be correct at the time of

publication. However, no liabil ity is accepted for

inaccuracies, printing errors or for any consequences

thereof. Ericsson AB reserves the right to change the

contents of this technical specification at any time without

prior notice.

PKB 4000B series Intermediate Bus Converters

Input 36-75 V, Output up to 40 A / 252 W EN/LZT 146 384 R4A May 2013

Technical Speciﬁcation

Ericsson Internal

PRODUCT SPECIFICATION 3 (4)

Prepared (also subject responsible if other) No.

SEC/S Marshall Wang BPOW 00201-1/1301 Uen

Approved Checked Date Rev Reference

2013-02-07 B Z

Safety Specification

General information

Ericsson Power Modules DC/DC converters and DC/DC

regulators are designed in accordance with the safety

standards IEC 60950-1, EN 60950-1 a nd UL 60950-1

Safety of Information Technology Equipment.

IEC/EN/UL 60950-1 contains requirements to prevent injury

or damage due to the following hazar ds:

 Electrical shock

 Energy hazards

 Fire

 Mechanical and heat hazards

 Radiation hazards

 Chemical hazards

On-board DC/DC converters and DC/DC regulators are

defined as component power supplies. As components

they cannot fully comply with the provisions of any safety

requirements without “conditions of acceptability”.

Clearance between conductors and between conductive

parts of the component power supply and conductors on

the board in the final product must meet the applicable

safety requirements. Certain conditions of acceptabilit y

apply for component po wer supplies with limited stand-off

(see Mechanical Information and Safety Cer tificate for

further information). It is the responsibility of the installer to

ensure that the final product housi ng these components

complies with the requirements of all applicable safety

standards and regulations for the final pr oduct.

Component power supplies for general use should comply

with the requirements in IEC/EN/UL 60950-1 Safety of

Information Technology Equipment. Product related

standards, e.g. IEEE 802.3af Power over Ethernet, and

ETS-300132-2 Power interface at the input to telecom

equipment, operated by direct current (dc) are based on

IEC/EN/UL 60950-1 with regards to safety.

Ericsson Power Modules DC/DC converters, Power

interface modules and DC/DC regulators are UL 60950-1

recognized and certified in accorda nce with EN 60950-1.

The flammability rating for all construction parts of the

products meet requirements for V-0 class material

according to IEC 60695-11-10, Fire hazard testing, test

flames – 50 W horizontal and vertical flame test methods.

Isolated DC/DC converters & Power interface modules

The product may provide basic or functional insulation

between input and output according to IEC/EN/UL 60950-1

(see Safety Certificate), different conditions shall be met if

the output of a basic or a functional insulated product shall

be considered as safety extra low voltage (SELV).

For basic insulated products (see Safet y Certificate) the

output is considered as safety extra lo w voltage (SELV) if

one of the following conditions is met:

 The input source provides supplementary or doub le or

reinforced insulation from the AC mains according to

IEC/EN/UL 60950-1.

 The input source provides functional or basic insulation

from the AC mains and the product’s output is relia bly

connected to protective earth according to

IEC/EN/UL 60950-1.

For functional insulated products (see Safety Certificate)

the output is considered as safety extra low voltage (SELV)

if one of the following conditions is met:

 The input source provides double or reinforced

insulation from the AC mains according to

IEC/EN/UL 60950-1.

 The input source provides basic or supplementar y

insulation from the AC mains and the product’s output is

reliably connec ted to protective earth according to

IEC/EN/UL 60950-1.

 The input source is reliably connected to protective

earth and provides basic or supplementary insulation

according to IEC/EN/UL 60950-1 an d the maximum

input source voltage is 60 Vdc.

Galvanic isolation between input and output is verified in an

electric strength test and the isolation voltage (Viso) meets

the voltage strength requirement for basic insulation

according to IEC/EN/UL 60950-1.

It is recommended to use a slo w blo w fuse at the input of

each DC/DC converter. If an input filter is used in the circuit

the fuse should be placed in front of the input filter. In the

rare event of a component problem that imposes a short

circuit on the input source, this fuse will provide the

following functions:

 Isolate the fault from the input power source so as not

to affect the operation of other parts of the system

 Protect the distribution wiring from excessive current

and power loss thus preventing hazardous overheating

Non - isolated DC/DC regulators

The DC/DC regulator output is SELV if the input source

meets the requirements for SELV circuits accordi ng to

IEC/EN/UL 60950-1.

PKB 4000B series Intermediate Bus Converters

Input 36-75 V, Output up to 40 A / 252 W EN/LZT 146 384 R4A May 2013

Technical Speciﬁcation

Ericsson Internal

PRODUCT SPECIFICATION 1 (13)

Prepared (also subject responsible if other) No.

MICMA LE 2/13 01 -BMR 65 8 Ue n

Approved Checked Date Rev Reference

SEC/D Betty Wu (EZHEWNG) 2009-12-10 E

Absolute Maximum Ratings

Characteristics min typ max Unit

Tref Operating Temperature (see Thermal Consideration section) -40 +125 °C

TS Storage temperature -40 +125 °C

VI Input voltage -0.5 +80 V

Viso Isolation voltage (input to output test voltage) 1500 Vdc

Vtr Input voltage transient (tp 100 ms) 100 V

VRC Remote Control pin voltage

(see Operating Information section) Positive logic option -0.5 15 V

Negative logic option -0.5 15 V

Stress in excess of Absolute Maximum Ratings may cause permanent damage. Absolute Maximum Ratings, sometimes referred to as no destruction limits, are

normally tested with one parameter at a time exceeding the limits of Output data or Electrical Characteristics. If exposed to stress above these limits, function and

performance may degrade in an unspecified manner.

Fundamental Circuit Diagram

RC Control

+IN

-OUT

+OUT

-IN

OVP

Driver

PKB 4000B series Intermediate Bus Converters

Input 36-75 V, Output up to 40 A / 252 W EN/LZT 146 384 R4A May 2013

Technical Speciﬁcation

Ericsson Internal

PRODUCT SPECIFICATION 2 (13)

Prepared (also subject responsible if other) No.

MICMA LE 2/13 01 -BMR 65 8 Ue n

Approved Checked Date Rev Reference

SEC/D Betty Wu (EZHEWNG) 2009-12-10 E

5 V, 40 A / 200 W Electrical Specification PKB 4201B PI

Tref = -30 to +90 ºC, VI = 36 to 75 V, unless otherwise specified under Conditions.

Typical values given at: Tref = +25 °C, VI= 53 V, max IO, unless otherwise specified under Conditions.

Characteristics Conditions min Typ max Unit

VI Input voltage range 36 75 V

VIoff Turn-off input voltage Decreasing input voltage 32 33 35 V

VIon Turn-on input voltage Increasing input voltage 33 35 36 V

CI Internal input capacitance 11 μF

PO Output power VI = 75 V 0 194 W

VI = 53 V 0 194

VI = 36 V 0 194

η Efficiency 50 % of max IO , VI = 53 V 94.5 %

max IO , VI = 53 V 94.0

Pd Power Dissipation max IO 12 18 W

Pli Input idling power IO = 0 A, VI = 53 V 4 W

PRC Input standby power VI = 53 V (turned off with RC) 0.12 W

fs Switchi ng frequency 0-100 % of max IO 180 kHz

VOi Output voltage initial setting and

accuracy Tref = +25 °C, VI = 53 V, IO = 20 A 4.9 5.0 5.1 V

Output voltage tolerance band 0-100 % of ma x IO,

VI = 36 V to 75 V, see Note 3 4.5 5.5 V

Idling voltage IO = 0 A 4.75 5.5 V

Line regulation VI = 36 V to 75 V 0.04 V

Load regulation VI = 53 V, 0-100 % of max IO 0.1 0.25 0.4 V

Vtr Load transient

voltage deviation VI = 53 V, Load step 50-75-50 % of

max IO, di/dt = 1 A/μs, see Note 1 0.27 V

ttr Load transient recovery time 0.06 ms

tr Ramp-up time

(from 10−90 % of VOi) 0-100 % of max IO, see Note 1 & 2 1 4 7 ms

ts Start-up time

(from VI connection to 90 % of VOi) 5 10 14 ms

tf VI shut-down fall time

(from VI off to 10 % of VO) max IO, see Note 1 0.5 ms

IO = 0 A, see Note 1 16 s

tRC RC start-up time max IO, see Note 1 & 2 7 ms

RC shut-down fall time

(from RC off to 10 % of VO) max IO, see Note 1 0.3 ms

IO = 0 A, see Note 1 16 s

IO Output current 0 40 A

Ilim Current limit threshold Tref < max Tref 42 50 65 A

Isc Short circuit current Tref = 25 ºC 53 A

Cout Recommended Capacitive Load Tref = 25ºC, see Note 4 1000 µF

VOac Output ripple & noise See ripple & noise section,

max IO 110 220 mVp-p

OVP Input over voltage protection 79 V

Output over voltage protection 7.3

Note 1: A 1 mF external output capacitance was used (ESR approx. 20 mohm).

Note 2: At ramp up with low load will the output voltage have a negative slope during a short time.

Note 3: Negative temperature coefficient: -3 mV/ºC.

Note 4: Low ESR type.

PKB 4000B series Intermediate Bus Converters

Input 36-75 V, Output up to 40 A / 252 W EN/LZT 146 384 R4A May 2013

Technical Speciﬁcation

Ericsson Internal

PRODUCT SPECIFICATION 3 (13)

Prepared (also subject responsible if other) No.

MICMA LE 2/13 01 -BMR 65 8 Ue n

Approved Checked Date Rev Reference

SEC/D Betty Wu (EZHEWNG) 2009-12-10 E

5 V, 40 A / 200 W Typical Characte ristics PKB 4201B PI

Efficiency Power Dissipation

100

0 10203040[A]

[%]

36 V

48 V

53 V

75 V

0 10203040[A]

[W]

36 V

48 V

53 V

75 V

Efficiency vs. load current and input voltage at Tref = +25 C Dissipated power vs. load current and input voltage at Tref = +25 °C

Output Current Derating, open fra me Output Current Derating, base plate option

020406080100[°C]

[A]

3.0 m/s

2.0 m/s

1.5 m/s

1.0 m/s

0.5 m/s

Nat. Conv.

0 20406080100[°C]

[A]

3.0 m/s

2.0 m/s

1.5 m/s

1.0 m/s

0.5 m/s

Nat. Co nv.

Available load current vs. ambient air tempe rat ure and airflow at

VI = 53 V. See Thermal Consideration section. Avail able load current vs. ambient air temperature and airflow at

VI = 53 V. See Thermal Consideration section.

Output Characteristics Current Limit Characteris tics

4.50

4.75

5.00

5.25

5.50

0 10203040[A]

[V]

36 V

48 V

53 V

75 V

3.5

4.0

4.5

5.0

5.5

40 44 48 52 56 60 [A]

[V]

36 V

48 V

53 V

75 V

Output voltage vs. load current at Tref = +25 °C Output voltage vs. load current at IO > max IO , Tref = +25 °C

PKB 4000B series Intermediate Bus Converters

Input 36-75 V, Output up to 40 A / 252 W EN/LZT 146 384 R4A May 2013

Technical Speciﬁcation

Ericsson Internal

PRODUCT SPECIFICATION 4 (13)

Prepared (also subject responsible if other) No.

MICMA LE 2/13 01 -BMR 65 8 Ue n

Approved Checked Date Rev Reference

SEC/D Betty Wu (EZHEWNG) 2009-12-10 E

5 V, 40 A / 200 W Typical Characteristics PKB 4201B PI

Start-up Shut-down

Start-up enabled by connecting VI at:

Tref = +25 °C, VI = 53 V,

IO = 40 A resistive load.

Cout = 1 mF.

Top trace: output voltage (2 V/div.).

Bottom trace: input voltage (50 V/div.).

Time scale: (5 ms/div .).

Shut-down enabled by disconnecting VI at:

Tref = +25 °C, VI = 53 V,

IO = 40 A resistive load.

Cout = 1 mF.

Top trace: output voltage (2 V/div.).

Bottom trace: input voltage (50 V/div.).

Time scale: (1 ms/div.).

Output Rip ple & Noise Output Load Tran sient Response

Output voltage ripple at:

Tref = +25 °C, VI = 53 V,

IO = 40 A resistive load.

Trace: output voltage (50 mV/div.).

Time scale: (2 µs/div.). Output voltage response to load current step-

change (20-30-20 A) at:

Tref =+25 °C, VI = 53 V, Cout = 1 mF.

Top trace: output voltage (0.5 V/div.).

Bottom trace: load current (20 A/div.).

Time scale: (0.1 ms/div.).

PKB 4000B series Intermediate Bus Converters

Input 36-75 V, Output up to 40 A / 252 W EN/LZT 146 384 R4A May 2013

Technical Speciﬁcation

Ericsson Internal

PRODUCT SPECIFICATION 5 (13)

Prepared (also subject responsible if other) No.

MICMA LE 2/13 01 -BMR 65 8 Ue n

Approved Checked Date Rev Reference

SEC/D Betty Wu (EZHEWNG) 2009-12-10 E

12 V, 20 A / 240 W Electrical Specification PKB 4204B PI

Tref = -30 to +90 ºC, VI = 36 to 75 V, unless otherwise specified under Conditions.

Typical values given at: Tref = +25 °C, VI= 53 V, max IO, unless otherwise specified under Conditions.

Characteristics Conditions min Typ max Unit

VI Input voltage range 36 75 V

VIoff Turn-off input voltage Decreasing input voltage 32 33 35 V

VIon Turn-on input voltage Increasing input voltage 33 35 36 V

CI Internal input capacitance 11 μF

PO Output power VI = 75 V 0 234 W

VI = 53 V 0 234

VI = 36 V 0 220

η Efficiency 50 % of max IO , VI = 53 V 95.5 %

max IO , VI = 53 V 94.5

Pd Power Dissipation max IO 13.5 23 W

Pli Input idling power IO = 0 A, VI = 53 V 3 W

PRC Input standby power VI = 53 V (turned off with RC) 0.1 W

fs Switchi ng frequency 0-100 % of max IO 180 kHz

VOi Output voltage initial setting and

accuracy Tref = +25 °C, VI = 53 V, IO = 10 A 11.85 12.00 12.15 V

Output voltage tolerance band 0-100 % of ma x IO,

VI = 38 V to 75 V, see Note 1 10.8 12.6 V

Idling voltage IO = 0 A 11.4 12.6 V

Line regulation VI = 38 V to 75 V, see Note 2 0.2 V

Load regulation VI = 53 V, 0-100 % of max IO 0.3 0.6 0.9 V

Vtr Load transient

voltage deviation VI = 53 V, Load step 50-75-50 % of

max IO, di/dt = 1 A/μs, see Note 3 0.4 V

ttr Load transient recovery time 0.25 ms

tr Ramp-up time

(from 10−90 % of VOi) 0-100 % of max IO 2 5.5 9 ms

ts Start-up time

(from VI connection to 90 % of VOi) 6 11 16 ms

tf VI shut-down fall time

(from VI off to 10 % of VO) max IO 0.1 ms

IO = 0 A 0.35 s

tRC RC start-up time max IO 8 ms

RC shut-down fall time

(from RC off to 10 % of VO) max IO 0.1 ms

IO = 0 A 0.35 s

IO Output current 0 20 A

Ilim Current limit threshold Tref < max Tref 21 27 33 A

Cout Recommended Capacitive Load Tref = 25ºC 0 µF

Isc Short circuit current Tref = 25 ºC 29 A

VOac Output ripple & noise See ripple & noise section,

max IO 80 240 mVp-p

OVP Input over voltage protection 79 V

Output over voltage protection 13.5

Note 1: At VI = 36 V to 38 V is the lower limit 10.5 V.

Note 2: At VI = 36 V to 75 V is the typical value 0.6 V.

Note 3: A 220 μF external output capacitance was with low ESR was used.

PKB 4000B series Intermediate Bus Converters

Input 36-75 V, Output up to 40 A / 252 W EN/LZT 146 384 R4A May 2013

Technical Speciﬁcation

Ericsson Internal

PRODUCT SPECIFICATION 6 (13)

Prepared (also subject responsible if other) No.

MICMA LE 2/13 01 -BMR 65 8 Ue n

Approved Checked Date Rev Reference

SEC/D Betty Wu (EZHEWNG) 2009-12-10 E

12 V, 20 A / 240 W Typical Characteristics PKB 4204B PI

Efficiency Power Dissipation

100

05101520[A]

[%]

36 V

38 V

53 V

75 V

0 5 10 15 20 [A]

[W]

36 V

38 V

53 V

75 V

Efficiency vs. load current and input voltage at Tref = +25 C Dissipated power vs. load current and input voltage at Tref = +25 °C

Output Current Derating, open frame Output Current Derating, base plate option

020406080100[°C]

[A]

3.0 m/s

2.0 m/s

1.5 m/s

1.0 m/s

0.5 m/s

Nat. C onv.

0 20406080100[°C]

[A]

3.0 m/s

2.0 m/s

1.5 m/s

1.0 m/s

0.5 m/s

Nat. C onv.

Available load current vs. ambient air temperature and airflow at

VI = 53 V. See Thermal Consideration section. Available load current vs. ambient air temperature and airflow at

VI = 53 V. See Thermal Consideration section.

Output Characteristics Current Limit C haracteristics

10.0

10.5

11.0

11.5

12.0

12.5

13.0

0 5 10 15 20 [A]

[V]

36 V

38 V

53 V

75 V

20 22 24 26 28 30 [A]

[V]

36 V

38 V

53 V

75 V

Output voltage vs. load current at Tref = +25 °C Output voltage vs. load current at IO > max IO , Tref = +25 °C

PKB 4000B series Intermediate Bus Converters

Input 36-75 V, Output up to 40 A / 252 W EN/LZT 146 384 R4A May 2013

Technical Speciﬁcation

Ericsson Internal

PRODUCT SPECIFICATION 7 (13)

Prepared (also subject responsible if other) No.

MICMA LE 2/13 01 -BMR 65 8 Ue n

Approved Checked Date Rev Reference

SEC/D Betty Wu (EZHEWNG) 2009-12-10 E

12 V, 20 A / 240 W Typical Characteristics PKB 4204B PI

Start-up Shut-down

Start-up enabled by connecting VI at:

Tref = +25 °C, VI = 53 V,

IO = 20 A resistive load.

Top trace: output voltage (5 V/div).

Bottom trace: input voltage (50 V/div).

Time scale: (5 ms/div ).

Shut-down enabled by disconnecting VI at:

Tref = +25 °C, VI = 53 V,

IO = 20 A resistive load.

Top trace: output voltage (5 V/div.).

Bottom trace: input voltage (50 V/div.).

Time scale: (0.1 ms/di v.).

Output Rip ple & Noise Output Load Tran sient Response

Output voltage ripple at:

Tref = +25 °C, VI = 53 V,

IO = 20 A resistive load.

Trace: output voltage (50 mV/div).

Time scale: (2 µs/div.). Output voltage response to load current step-

change (10-15-10 A) at:

Tref =+25 °C, VI = 53 V, Cout = 220 μF.

Top trace: output voltage (0.5 V/div.).

Bottom trace: load current (5 A/div).

Time scale: (0.1 ms/div.).

PKB 4000B series Intermediate Bus Converters

Input 36-75 V, Output up to 40 A / 252 W EN/LZT 146 384 R4A May 2013

Technical Speciﬁcation

Ericsson Internal

PRODUCT SPECIFICATION 8 (13)

Prepared (also subject responsible if other) No.

MICMA LE 2/13 01 -BMR 65 8 Ue n

Approved Checked Date Rev Reference

SEC/D Betty Wu (EZHEWNG) 2009-12-10 E

13 V, 20 A / 252 W Electrical Specification PKB 4207LB PI

Tref = -30 to +90 ºC, VI = 36 to 75 V, unless otherwise specified under Conditions.

Typical values given at: Tref = +25 °C, VI= 53 V, max IO, unless otherwise specified under Conditions.

Characteristics Conditions min Typ max Unit

VI Input voltage range 36 75 V

VIoff Turn-off input voltage Decreasing input voltage 32 33 35 V

VIon Turn-on input voltage Increasing input voltage 33 35 36 V

CI Internal input capacitance 11 μF

PO Output power VI = 75 V 0 252 W

VI = 53 V 0 252

VI = 36 V 0 252

η Efficiency 50 % of max IO , VI = 53 V 95 %

max IO , VI = 53 V 94

Pd Power Dissipation max IO 16 25 W

Pli Input idling power IO = 0 A, VI = 53 V 4 W

PRC Input standby power VI = 53 V (turned off with RC) 0.1 W

fs Switchi ng frequency 0-100 % of max IO 220 kHz

VOi Output voltage initial setting and

accuracy Tref = +25 °C, VI = 53 V, IO = 10 A 12.8 13.00 13.2 V

Output voltage tolerance band 0-100 % of ma x IO,

VI = 36 V to 75 V 11.8 13.6 V

Idling voltage IO = 0 A 12.4 13.6 V

Line regulation VI = 36 V to 75 V 0.2 0.8 V

Load regulation VI = 53 V, 0-100 % of max IO 0.3 0.65 0.9 V

Vtr Load transient

voltage deviation VI = 53 V, Load step 50-75-50 % of

max IO, di/dt = 1 A/μs, see Note 1 0.4 V

ttr Load transient recovery time 0.25 ms

tr Ramp-up time

(from 10−90 % o f VOi) 0-100 % of max IO 2 5.5 9 ms

ts Start-up time

(from VI connection to 90 % of VOi) 6 11 16 ms

tf VI shut-down fall time

(from VI off to 10 % of VO) max IO 0.1 ms

IO = 0 A 0.8 s

tRC RC start-up time max IO 8 ms

RC shut-down fall time

(from RC off to 10 % of VO) max IO 0.1 ms

IO = 0 A 0.5 s

IO Output current 0 20 A

Ilim Current limit threshold Tref < max Tref 21 27 33 A

Cout Recommended Capacitive Load Tref = 25ºC 0 µF

Isc Short circuit current Tref = 25 ºC 29 A

VOac Output ripple & noise See ripple & noise section,

max IO 80 240 mVp-p

OVP Input over voltage protection 79

Output over voltage protection 13.5

Note 1: A 220 μF external output capacitance was with low ESR was used.

PKB 4000B series Intermediate Bus Converters

Input 36-75 V, Output up to 40 A / 252 W EN/LZT 146 384 R4A May 2013

Technical Speciﬁcation

Ericsson Internal

PRODUCT SPECIFICATION 9 (13)

Prepared (also subject responsible if other) No.

MICMA LE 2/13 01 -BMR 65 8 Ue n

Approved Checked Date Rev Reference

SEC/D Betty Wu (EZHEWNG) 2009-12-10 E

13 V, 20 A / 252 W Typical Characteristics PKB 4207LB PI

Efficiency Power Dissipation

100

0 5 10 15 20 [A]

[%]

36 V

48 V

53 V

75 V

05101520[A]

[W]

36 V

48 V

53 V

75 V

Efficiency vs. load current and input voltage at Tref = +25 C Dissipated power vs. load current and input voltage at Tref = +25 °C

Output Current Derating, open frame Output Current Derating, base plate option

0 20406080100[°C]

[A]

3.0 m/s

2.0 m/s

1.5 m/s

1.0 m/s

0.5 m/s

Na t. Co n v.

0 20406080100[°C]

[A]

3.0 m/s

2.0 m/s

1.5 m/s

1.0 m/s

0.5 m/s

N at. Conv.

Available load current vs. ambient air temperature and airflow at

VI = 53 V. See Thermal Consideration section. Available load current vs. ambient air temperat ur e and airflo w at

VI = 53 V. See Thermal Consideration section.

Output Char ac te ris ti cs Current Limit Characteristics

11,0

11,5

12,0

12,5

13,0

13,5

14,0

0 5 10 15 20 [A]

[V]

36 V

48 V

53 V

75 V

20 22 24 26 28 30 [A]

[V]

36 V

48 V

53 V

75 V

Output voltage vs. load current at Tref = +25 °C Output voltage vs. load current at I O > max IO , Tref = +25 °C

PKB 4000B series Intermediate Bus Converters

Input 36-75 V, Output up to 40 A / 252 W EN/LZT 146 384 R4A May 2013

Technical Speciﬁcation

Ericsson Internal

PRODUCT SPECIFICATION 10 (13)

Prepared (also subject responsible if other) No.

MICMA LE 2/13 01 -BMR 65 8 Ue n

Approved Checked Date Rev Reference

SEC/D Betty Wu (EZHEWNG) 2009-12-10 E

13 V, 20 A / 252 W Typical Cha

acteristics PKB 4207LB PI

Start-up Shut-down

Start-up enabled by connecting V I at:

Tref = +25 °C, VI = 53 V,

IO = 20 A resistive load.

Top trace: intput voltage (20 V/div).

Bottom trace: output voltage (5 V/div).

Time scale: (5 ms/div).

Shut-down enabled by disconnecting VI at:

Tref = +25 °C, VI = 53 V,

IO = 20 A resistive load.

Top trace: intput voltage (20 V/div.).

Bottom trace: output voltage (5 V/div.).

Time scale: (0.1 ms/di v.).

Output Rip ple & Noise Output Load Tran sient Response

Output voltage ripple at:

Tref = +25 °C, VI = 53 V,

IO = 20 A resistive load.

Trace: output voltage (50 mV/div).

Time scale : (1 µs/div.). Output voltage response to load current step-

change (10-15-10 A) at:

Tref =+25 °C, VI = 53 V, Cout = 220 μF.

Top trace: output voltage (0.5 V/div.).

Bottom trace: load current (5 A/div).

Time scale: (0.1 ms/div.).

PKB 4000B series Intermediate Bus Converters

Input 36-75 V, Output up to 40 A / 252 W EN/LZT 146 384 R4A May 2013

Technical Speciﬁcation

Ericsson Internal

PRODUCT SPECIFICATION 11 (13)

Prepared (also subject responsible if other) No.

MICMA LE 2/13 01 -BMR 65 8 Ue n

Approved Checked Date Rev Reference

SEC/D Betty Wu (EZHEWNG) 2009-12-10 E

14 V /10 A /140 W Electrical Specification PKB 4207KB PI

Tref = -30 to +90 ºC, VI = 40 to 60 V, unless otherwise specified under Conditions.

Typical values given at: Tref = +25 °C, VI= 54 V, max IO, unless otherwise specified under Conditions.

Characteristics Conditions min Typ max Unit

VI Input voltage range 36 75 V

VIoff Turn-off input voltage Decreasing input voltage 32 33 35 V

VIon Turn-on input voltage Increasing input voltage 33 35 36 V

CI Internal input capacitance 11 μF

PO Output power VI = 60 V 0 140 W

VI = 54 V 0 140

VI = 40 V 0 140

η Efficiency 50 % of max IO , VI = 54 V 93.0 %

max IO , VI = 54 V 95.0

Pd Power Dissipation max IO 8 10 W

Pli Input idling power IO = 0 A, VI = 54 V 4 W

PRC Input standby power VI = 54 V (turned off with RC) 0.1 W

fs Switchi ng frequency 0-100 % of max IO 180 kHz

VOi Output voltage initial setting and

accuracy Tref = +25 °C, VI = 54 V, IO = 5 A 13.8 14.0 14.2 V

Output voltage tolerance band 0-100 % of ma x IO,

VI = 40 V to 60 V 13.44 14.56 V

Idling voltage IO = 0 A 13.8 14.5 V

Line regulation VI = 40 V to 60 V 0.1 V

Load regulation VI = 54 V, 0-100 % of max IO 0.1 0.35 0.55 V

Vtr Load transient

voltage deviation VI = 54 V, Load step 50-75-50 % of

max IO, di/dt = 1 A/μs, see Note 1 0.3 V

ttr Load transient recovery time 10 us

tr Ramp-up time

(from 10−90 % of VOi) 0-100 % of max IO 2 5.5 9 ms

ts Start-up time

(from VI connection to 90 % of VOi) 6 11 16 ms

tf VI shut-down fall time

(from VI off to 10 % of VO) max IO 0.1 ms

IO = 0 A, see Note 1 0.6 s

tRC RC start-up time max IO 8 ms

RC shut-down fall time

(from RC off to 10 % of VO) max IO 0.1 ms

IO = 0 A, see Note 1 0.5 s

IO Output current 0 10 A

Cout Recommended Capacitive Load Tref = 25ºC 0 2200 µF

Ilim Current limit threshold Tref < max Tref, 0.9*Vo 11.0 14 16.5 A

Isc Short circuit current Tref = 25 ºC 17 A

VOac Output ripple & noise See ripple & noise section,

max IO 80 240 mVp-p

OVP Input over voltage protection 79 V

Output over voltage protection 15.5

Note 1: A 220 μF external output capacitance was used. An external output capacitance of minimum 220 μF is required to avoid risk of negative output voltage at turn-off.

PKB 4000B series Intermediate Bus Converters

Input 36-75 V, Output up to 40 A / 252 W EN/LZT 146 384 R4A May 2013

Technical Speciﬁcation

Ericsson Internal

PRODUCT SPECIFICATION 12 (13)

Prepared (also subject responsible if other) No.

MICMA LE 2/13 01 -BMR 65 8 Ue n

Approved Checked Date Rev Reference

SEC/D Betty Wu (EZHEWNG) 2009-12-10 E

14 V /10 A /140 W Typical Characteristics PKB 4207KB PI

Efficiency Power Dissipation

100

0246810[A]

[%]

40 V

48 V

54 V

60 V

0246810[A]

[W]

40 V

48 V

54 V

60 V

Efficiency vs. load current and input voltage at Tref = +25 C Dissipated power vs. load current and input voltage at Tref = +25 °C

Output Current Derating, open frame

40 50 60 70 80 90 100 [°C]

[A]

3.0 m/s

2.0 m/s

1.5 m/s

1.0 m/s

0.5 m/s

Nat. Co nv .

Available load current vs. ambient air temperature and airflow at

VI = 54 V. See Thermal Consideration section.

Output Charac teris ti cs Current Limit Characteristics

13.50

13.75

14.00

14.25

14.50

0246810[A]

[V]

40 V

48 V

54 V

60 V

4.5

6.5

8.5

10.5

12.5

14.5

10 12 14 16 [A]

[V]

40 V

48 V

54 V

60 V

Output voltage vs. load current at Tref = +25 °C Output voltage vs. load current at IO > max IO , Tref = +25 °C

PKB 4000B series Intermediate Bus Converters

Input 36-75 V, Output up to 40 A / 252 W EN/LZT 146 384 R4A May 2013

Technical Speciﬁcation

Ericsson Internal

PRODUCT SPECIFICATION 13 (13)

Prepared (also subject responsible if other) No.

MICMA LE 2/13 01 -BMR 65 8 Ue n

Approved Checked Date Rev Reference

SEC/D Betty Wu (EZHEWNG) 2009-12-10 E

14 V /10 A /140 W Typical Characteristics PKB 4207KB PI

Start-up Shut-down

Start-up enabled by connecting V I at:

Tref = +25 °C, VI = 54 V,

IO = 10 A resistive load.

Top trace: output voltage (5 V/div.).

Bottom trace: input voltage (50 V/div .).

Time scale: (5 ms/div.).

Shut-down enabled by disconnecting VI at:

Tref = +25 °C, VI = 54 V,

IO = 10 A resistive load.

Top trace: output voltage (5 V/div.).

Bottom trace: input voltage (50 V/div.).

Time scale: (0.1 ms/di v.).

Output Rip ple & Noise Output Load Tran sient Response

Output voltage ripple at:

Tref = +25 °C, VI = 54 V,

IO = 10 A resistive load.

Trace: output voltage (50 mV/div.).

Time scale : (2 µs/div.). Output voltage response to load current step-

change (5-7.5-5 A) at:

Tref =+25 °C, VI = 54 V.

Top trace: output voltage (0.5 V/div.).

Bottom trace: load current (2 A/div.).

Time scale: (0.1 ms/div.).

PKB 4000B series Intermediate Bus Converters

Input 36-75 V, Output up to 40 A / 252 W EN/LZT 146 384 R4A May 2013

Technical Speciﬁcation

Ericsson Internal

PRODUCT SPECIFICATION 1 (5)

Prepared (also subject responsible if other) No.

MICMALE 3/1301-BMR 658 Uen

Approved Checked Date Rev Reference

SEC/D Betty Wu (EZHEWNG) 2009-12-16 PB3

EMC Specification

Conducted EMI measured according to EN5 5022, CISPR 22

and FCC part 15J (see test set-up). See Design Note 009 for

detailed information. The fundamental switching frequency is

180 kHz for PKB 4204B PI @ VI = 53 V, max IO.

Conducted EMI Input terminal value (typ)

EMI without filter

External filter (class B)

Required external input filter in order to meet class B in

EN 55022, CISPR 22 and FCC part 15J.

Components:

C1,2,3 = 1 F

(100 V, ceramic)

C4,5 = 2.2 nF

(2 kV, ceramic)

C6 = 220 F

(100 V, electrolytic)

L1,2 = 809 H

(common mode)

EMI with filter

Test set-up

Layout recommendation

The radiated EMI performanc e of the DC/DC converter will

depend on the PCB layout and ground layer design.

It is also important to consider the stand-off of the DC/DC

converter.

If a ground layer is used, it should be connected to the output

of the DC/DC converter and the equipment ground or chassis.

ground layer will increase the stray capacitance in the PCB

and improve the high frequency EMC performance.

Output ripple and noise

Output ripple and noise meas ured according to figure belo w.

See Design Note 022 for detai led information.

10uF

0.1uF

-Vout

+Vout

*Conduc tor from Vout to capaci tors = 50mm [1.97i n.]

BNC

Connector

to Scope

Tantalum

Capacitor

Ceramic

Capacitor

Output ripple and noise test setup

PKB 4000B series Intermediate Bus Converters

Input 36-75 V, Output up to 40 A / 252 W EN/LZT 146 384 R4A May 2013

Technical Speciﬁcation

Ericsson Internal

PRODUCT SPECIFICATION 2 (5)

Prepared (also subject responsible if other) No.

MICMALE 3/1301-BMR 658 Uen

Approved Checked Date Rev Reference

SEC/D Betty Wu (EZHEWNG) 2009-12-16 PB3

Operating information

Input Voltage

The input voltage range 36 to 75 Vdc meets the requirements

of the European Telecom Standard ETS 300 132-2 for normal

input voltage range in –48 an d –60 Vdc systems,

-40.5 to -57.0 V and –50.0 to -72 V respectively.

t input voltages exceeding 75 V, the po wer loss will be higher

than at normal input voltage a nd Tref must be limited to

absolute max 125 °C. The absolute maximum continuous

input voltage is 80 Vdc.

Turn-off Input Voltage

The DC/DC converters monitor the input voltage and will turn

on and turn off at predetermined levels.

The minimum hysteresis between on and off input

voltage is 1.0 V.

Remote Control (RC)

The products are fitted with a

remote control function referenced

to the primary negative i nput

connection (- In), with positive logic

option available. T he RC function

allows the product to be turned

on/off by an external device like a

semiconductor or mechanical

switch. The RC pin has an internal

pull up resistor to + In.

The maximum required si nk current is less than 1 mA. When

the RC pin is left open, the voltage generated on the RC pin is

5-10 V. The second option is “positive log ic” remote control,

which can be ordered by adding the suffix “P” to the end of the

part number. The DC/DC converter will turn on when the input

voltage is applied with the RC pin op en. Turn off is achieved

by connecting the RC pin to the - In. To ensure safe turn off

the voltage difference between RC pin and the - In pin shall be

less than 1 V. The DC/DC converter will restart automatically

when this connection is opened.

Input and Output Impedance

The impedance of both the input source and the load will

interact with the impedance of the DC/DC converter. It is

important that the input source has low characteristic

impedance. Minimum recommended external input

capacitance is 220 µF. The performance in some applications

can be enhanced by additi on of external capacitance as

described under External D ecoupling Capacitors.

External Decoupling Capacitors

When powering loads with significant d ynamic current

requirements, the voltage regulation at the point of load can

be improved by addition of decoup ling capacitors at the load.

The most effective technique is to locate low ESR ceramic and

electrolytic capacitors as close to the load as possible, using

several parallel capacitors to lower the effective ESR. The

ceramic capacitors will handle high-frequency dynamic load

changes while the electrolytic capacitors are used to handle

low frequency dynamic load changes. Ceramic capacitors will

also reduce any high freq uency noise at the load.

It is equally important to use low resistance and low

inductance PCB layouts and cabling.

The recommended absolute maximum value of output

capacitance is 2 000 μF. The user should be aware, however,

that large values of capacitance will affect the ramp-up time of

the DC/DC converter output voltage during

start-up.

Parallel Operation

The converters can be paralleled for redundancy if external o-

ring diodes are used in series wit h the outputs.

Over Temperature Protection (OTP)

The DC/DC converters are protected from thermal ov erload by

an internal over temperature s hutdown circuit.

When Tref as defined in thermal consideration section

exceeds 125°C the DC/DC converter will shut down. The

DC/DC converter will make continuous attempts to start up

(non-latching mode) and resume normal operation

automatically when the temperature h as dropped below the

temperature threshold.

Over Voltage Protection (OVP)

The DC/DC converters have an outp ut over voltage protection

that normally will clamp the output voltage to the OVP

threshold level. If the output voltage sho uld increase to the

OVP threshold level very fast then the DC/DC converter can

shut down and make attempts to start up (non-latching mode).

fter removal of the over voltage condition the DC/DC

converter will resume to normal operation automatically.

Over Current Protection (OCP)

The DC/DC converters include current limiting circuitry for

protection at continuous overload.

The output voltage will decrease towards zero for output

currents in excess of max output current (max IO). The DC/DC

converter will resume normal oper ation after removal of the

overload. The load distribution should be designed for the

maximum output short circuit current specified.

PKB 4000B series Intermediate Bus Converters

Input 36-75 V, Output up to 40 A / 252 W EN/LZT 146 384 R4A May 2013

Technical Speciﬁcation

Ericsson Internal

PRODUCT SPECIFICATION 3 (5)

Prepared (also subject responsible if other) No.

MICMALE 3/1301-BMR 658 Uen

Approved Checked Date Rev Reference

SEC/D Betty Wu (EZHEWNG) 2009-12-16 PB3

Thermal Consideration

General

The products are designe d to operate in different thermal

environments and sufficient cooling must be provided to

ensure reliable operation.

For products mounted on a PCB without a heat sink attached

cooling is achieved mainly by conduction, from the pins to the

host board, and convection, which is dependant on the airflow

across the product. Increased airflow enhances the cooling of

the converter.

The Output Current Derating graph foun d in the Output section

for each model provides the available output current vs.

ambient air temperature and air velocity at Vin = 53 V.

The product is tested on a 254 x 254 mm,

35 µm (1 oz), 16-layer test board mounted vertically in a wind

tunnel with a cross-section of 305 x 30 5 mm.

Proper cooling of the DC/DC converter can be verified by

measuring the temperature at positi ons P1, P2, P3, P4 and

P5. The temperature at these positions should not exceed the

max values provided in the table be low. The number of points

may vary with different thermal design and topology.

See Design Note 019 for detai led information.

Position Description Max value

P1 Reference point (Tref) 125 ºC

P2 Transistor 125 ºC

P3 Optocoupler 100 ºC

P5 Reference point (Tref) 125 ºC

P6 Transistor 125 ºC

P7 Base plate 105 ºC

Open frame

Base plate

PKB 4000B series Intermediate Bus Converters

Input 36-75 V, Output up to 40 A / 252 W EN/LZT 146 384 R4A May 2013

Technical Speciﬁcation

Ericsson Internal

PRODUCT SPECIFICATION 4 (5)

Prepared (also subject responsible if other) No.

MICMALE 3/1301-BMR 658 Uen

Approved Checked Date Rev Reference

SEC/D Betty Wu (EZHEWNG) 2009-12-16 PB3

Connections

Pin Designation Function

1 +In Positive input

2 RC Remote control

3 -In Negative input

4 -Out Negative output

5 +Out Positive output

PKB 4000B series Intermediate Bus Converters

Input 36-75 V, Output up to 40 A / 252 W EN/LZT 146 384 R4A May 2013

Technical Speciﬁcation

Ericsson Confidential

PRODUCT SPEC. MECHANICAL 1 (4)

Prepared (also subject responsible if other) No.

EXXUYNG 4/1301-BMR 658 Uen

Approved Checked Date Rev Reference

SEC/D (Betty Wu) See §1 2008-11-27 C

Mechanical Information - Hole Mount, Open Frame Version

PKB 4000B series Intermediate Bus Converters

Input 36-75 V, Output up to 40 A / 252 W EN/LZT 146 384 R4A May 2013

Technical Speciﬁcation

Ericsson Confidential

PRODUCT SPEC. MECHANICAL 2 (4)

Prepared (also subject responsible if other) No.

EXXUYNG 4/1301-BMR 658 Uen

Approved Checked Date Rev Reference

SEC/D (Betty Wu) See §1 2008-11-27 C

Mechanical Information - Hole Mount, Base Plate Version

PKB 4000B series Intermediate Bus Converters

Input 36-75 V, Output up to 40 A / 252 W EN/LZT 146 384 R4A May 2013

Technical Speciﬁcation

Ericsson Confidential

PRODUCT SPEC. MECHANICAL 3 (4)

Prepared (also subject responsible if other) No.

EXXUYNG 4/1301-BMR 658 Uen

Approved Checked Date Rev Reference

SEC/D (Betty Wu) See §1 2008-11-27 C

Mechanical Information - Surface Mount Version

PKB 4000B series Intermediate Bus Converters

Input 36-75 V, Output up to 40 A / 252 W EN/LZT 146 384 R4A May 2013

Technical Speciﬁcation

Ericsson Confidential

PRODUCT SPEC. 1 (4)

Prepared (also subject responsible if other) No.

EXXUYNG 5/1301- BMR 658 Uen

Approved Checked Date Rev Reference

SEC/D (Betty Wu) See §1 2008-11-27 B

Soldering Information - Surface Mounting

The surface mount product is intended for forced convection

or vapor phase reflow soldering in SnPb and Pb-free

processes.

The reflow profile should be optimised to avoid excessive

heating of the product. It is recommended to have a

sufficiently extended preheat time to ensure an even

temperature across the host PCB and it is also recommended

to minimize the time in reflow.

A no-clean flux is recommended to avoid entrapment of

cleaning fluids in cavities inside the product or between the

product and the host board, since cleaning residues may

affect long time reliability and isolation voltage.

Minimum Pin Temperature Recommendations

Pin number 4 is chosen as reference location for the minimum

pin temperature recommendation since this will likely be the

coolest solder joint during the reflow process.

SnPb solder processes

For SnPb solder processes, a pin temperature (T

) in excess

of the solder melting temperature, (T

, 183°C for Sn63Pb37)

for more than 30 seconds and a peak temperature of 210°C is

recommended to ensure a reliable solder joint.

For dry packed products only: depending on the type of

solder paste and flux system used on the host board, up to a

recommended maximum temperature of 245°C could be

used, if the products are kept in a controlled environment (dr

pack handling and storage) prior to assembly.

General reflow process specifications SnPb eutectic Pb-free

Average ramp-up (T

PRODUCT

) 3°C/s max 3°C/s max

Typical solder melting (liquidus)

temperature T

183°C 221°C

Minimum reflow time above T

30 s 30 s

Minimum pin temperature T

210°C 235°C

Peak product temperature T

PRODUCT

225°C 260°C

Average ramp-down (T

PRODUCT

) 6°C/s max 6°C/s max

Maximum time 25°C to peak 6 minutes 8 minutes

PRODUCT

maximum

minimum

Time

profile

Product

profile

Time in

reflow

Time in preheat

/ soak zone

Time 25°C to peak

Temperature

Lead-free (Pb-free) solder processes

For Pb-free solder processes, a pin temperature (T

) in

excess of the solder melting temperature (T

, 217 to 221°C for

SnAgCu solder alloys) for more than 30 seconds and a peak

temperature of 235°C on all solder joints is recommended to

ensure a reliable solder joint.

Maximum Product Temperature Requirements

Top of the product PCB near pin 2 is chosen as reference

location for the maximum (peak) allowed product temperature

PRODUCT

) since this will likely be the warmest part of the

product during the reflow process.

SnPb solder processes

For SnPb solder processes, the product is qualified for MSL 1

according to IPC/JEDEC standard J-STD-020C.

During reflow T

PRODUCT

must not exceed 225 °C at any time.

Pb-free solder processes

For Pb-free solder processes, the product is qualified for

MSL 3 according to IPC/JEDEC standard J-STD-020C.

During reflow T

PRODUCT

must not exceed 260 °C at any time.

Dry Pack Information

Products intended for Pb-free reflow soldering processes are

delivered in standard moisture barrier bags according to

IPC/JEDEC standard J-STD-033 (Handlin

, packin

, shippin

and use of moisture/reflow sensitivit

surface mount devices).

Using products in high temperature Pb-free soldering

processes requires dry pack storage and handling. In case

the products have been stored in an uncontrolled

environment and no longer can be considered dry, the

modules must be baked according to J-STD-033.

Thermocouple Attachment

Pin 4 for measurement of minimum pin (solder

oint) temperature,

Top of PCB near pin 2 for measurement of

maximum product temperature, T

PRODUCT

PKB 4000B series Intermediate Bus Converters

Input 36-75 V, Output up to 40 A / 252 W EN/LZT 146 384 R4A May 2013

Technical Speciﬁcation

Ericsson Confidential

PRODUCT SPEC. 2 (4)

Prepared (also subject responsible if other) No.

EXXUYNG 5/1301- BMR 658 Uen

Approved Checked Date Rev Reference

SEC/D (Betty Wu) See §1 2008-11-27 B

Soldering Information - Hole Mounting

The hole mounted product is intended for plated throu

h hole

mounting by wave or manual soldering. The pin temperature

is specified to maximum to 270°C for maximum 10 seconds.

A maximum preheat rate of 4°C/s and maximum preheat

temperature of 150°C is suggested. When soldering by hand,

care should be taken to avoid direct contact between the hot

soldering iron tip and the pins for more than a few seconds in

order to prevent overheating.

A no-clean flux is recommended to avoid entrapment of

cleaning fluids in cavities inside the product or between the

product and the host board. The cleanin

residues ma

affect

long time reliability and isolation voltage.

Delivery Package Information

Surface Mount Version

The products are delivered in antistatic injection molded tra

(Jedec design guide 4.10D standard).

Tray Specifications

Material Antistatic PPE

Surface resistance 10

< Ohm/square < 10

Bakability The trays can be baked at maximum

125°C for 48 hours

Tray thickness 17.4 mm [0.685 inch]

Box capacity 100 products (5 full trays/box)

Tray weight 120 g empty, 640 g full tray

Delivery Package Information

Hole Mount, Open Frame version

Hole Mount, Base Plate version

The products are delivered in antistatic trays.

Tray Specifications

Material PE Foam

Surface resistance 10

< Ohm/square < 10

Bakability The trays are not bakeable

Tray thickness 22 mm [0.87 inch]

Box capacity 75 products (3 full trays/box)

Tray weight

Open frame version

40 g empty, 690 g full tray

Base plate version

40 g empty, 1165 g full tray

PKB 4000B series Intermediate Bus Converters

Input 36-75 V, Output up to 40 A / 252 W EN/LZT 146 384 R4A May 2013

Technical Speciﬁcation

Ericsson Confidential

PRODUCT SPEC. 3 (4)

Prepared (also subject responsible if other) No.

EXXUYNG 5/1301- BMR 658 Uen

Approved Checked Date Rev Reference

SEC/D (Betty Wu) See §1 2008-11-27 B

Product Qualification Specification

Characteristics

External visual inspection IPC-A-610

Change of temperature

(Temperature cycling) IEC 60068-2-14 Na

Temperature range

Number of cycles

Dwell/transfer time

-40 to 100°C

1000

15 min/0-1 min

Cold (in operation) IEC 60068-2-1 Ad Temperature T

Duration

-45°C

72 h

Damp heat IEC 60068-2-67 Cy

Temperature

Humidity

Duration

85°C

85 % RH

1000 hours

Dry heat IEC 60068-2-2 Bd Temperature

Duration

125°C

1000 h

Electrostatic discharge

susceptibility

IEC 61340-3-1, JESD 22-A114

IEC 61340-3-2, JESD 22-A115

Human body model (HBM)

Machine Model (MM)

Class 2, 2000 V

Class 3, 200 V

Immersion in cleaning solvents IEC 60068-2-45 XA, method 2

Water

Glycol ether

Isopropyl alcohol

55°C

35°C

Mechanical shock IEC 60068-2-27 Ea Peak acceleration

Duration

100 g

6 ms

Moisture reflow sensitivity

J-STD-020C Level 1 (SnPb-eutectic)

Level 3 (Pb Free)

225°C

260°C

Operational life test MIL-STD-202G, method 108A Duration 1000 h

Resistance to soldering heat

IEC 60068-2-20 Tb, method 1A Solder temperature

Duration

270°C

10-13 s

Robustness of terminations IEC 60068-2-21 Test Ua1

IEC 60068-2-21 Test Ue1

Through hole mount products

Surface mount products

All leads

Solderability

IEC 60068-2-58 test Td

IEC 60068-2-20 test Ta

Preconditioning

Temperature, SnPb Eutectic

Temperature, Pb-free

Preconditioning

Temperature, SnPb Eutectic

Temperature, Pb-free

150°C dry bake 16 h

215°C

235°C

Steam ageing

235°C

245°C

Vibration, broad band random IEC 60068-2-64 Fh, method 1

Frequency

Spectral density

Duration

10 to 500 Hz

0.07 g

/Hz

10 min in each direction

Notes

Only for products intended for reflow soldering (surface mount products)

Only for products intended for wave soldering (plated through hole products)

PKB 4000B series Intermediate Bus Converters

Input 36-75 V, Output up to 40 A / 252 W EN/LZT 146 384 R4A May 2013

Technical Speciﬁcation