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Microsemi

Scottsdale Division Page 1

6-20-2007 REV E

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SAC5.0 thru SAC50, e3

500 WATT LOW CAPACITANCE

TRANSIENT VOLTAGE SUPPRESSOR

SCOTTSDALE DIVISION

SAC5.0 thru SAC50, e3

DESCRIPTION APPEARANCE

This SAC5.0 thru SAC50 transient voltage suppressor (TVS) series rated at

500 watts provides an added rectifier element as shown in Figure 4 to

achieve low capacitance in applications for higher speed data or signal

lines. The low capacitance rating of 30 pF may be used for protecting

higher frequency applications in inductive switching environments or

electrical systems involving secondary lightning effects per IEC61000-4-5

as well as RTCA/DO-160D or ARINC 429 for airborne avionics. If

bidirectional protection is needed, two SAC devices in anti-parallel

configuration are required as shown in Figure 6. With their very fast

response time, they also provide ESD and EFT protection per IEC61000-4-

2 and IEC61000-4-4 respectively.

DO-41

IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com

FEATURES APPLIC ATIONS / BENEFITS

• Unidirectional low-capacitance TVS series for

flexible thru-hole mounting (for bidirectional see

Figure 6)

• Improved performance in low capacitance of 30 pF

• Economical plastic series in flexibl e a xial-l ea ded

DO-41 package

• Optional 100% screening for avionics grade is

available by adding MA prefix to part number for

added 100% temperature cycle -55oC to +125oC

(10X) as well as surge (3X) and 24 hours HTRB

with post test VZ & IR

• Options for screening in accordance with MIL-PRF-

19500 for JAN, JANTX, and JANTXV are also

available by adding MQ, MX, or MV prefixes

respectively to part number, e.g. MXSAC5.0,

MVSAC18, etc.

• Also available in surface mount with HSMBJ prefix

for part numbers (ex. HSMBJSAC5.0)

• RoHS Compliant devices avai lable by adding “e3”

suffix

• Suppresses transient up to 500 Watts Peak Pulse

Power @ 10/1000 µs

• Low Capacitance for data-line protection to 10 MHz

• Protection for aircraft fast data rate lines up to Level 3

Waveform 4 and Level 1 Waveform 5A in RTCA/DO-

160D (also see MicroNote 130) & ARINC 429 with bit

rates of 100 kb/s (per ARINC 429, Part 1, par 2.4.1.1)

• ESD and EFT protection per IEC61 000-4-2 and

IEC61000-4-4 respectively

• Secondary ligh tning protection per IEC61000-4-5 with

42 Ohms source impedance:

Class 1: SAC5.0 to SAC50

Class 2: SAC5.0 to SAC45

Class 3: SAC5.0 to SAC22

Class 4: SAC5.0 to SAC10

• Secondary lightning protection per IEC61000-4-5 with

12 Ohms source impedance

Class 1: SAC5.0 to SAC26

Class 2: SAC5.0 to SAC15

Class 3: SAC5.0 to SAC7.0

MAXIMUM RAT ING S MECHANICAL AND PACKAGING

• Peak Pulse Power Dissipation at 25oC: 500 Watts @

10/1000 μs with repetition rate of 0.01% or less*

• Steady State Power Dissipation* at TL = +75oC: 2.5 Watts

(Lead Length = 3/8”).

• Clamping Speed (0 volts to V(BR) Min.) less than 5

nanoseconds.

• Operating and Storage Temperature: -65oC to +150oC.

• CASE: Void Free Transfer Molded Thermosetting Plastic

epoxy meeting UL94V-0

• TERMINATIONS: Tin-lead or RoHS Compliant annealed

matte-Tin plating readily solderable per MIL-STD-750

method 2026

• POLARITY: Cathode indicated by band

• MARKING: Part number and cathode band

• WEIGHT: 0.7 Grams (Approx.)

• See package dimensions on last page

* TVS devices are not typically used for dc power dissipation and are instead operated < VWM (rated standoff voltage) except for transients that briefly

drive the device into avalanche breakdown (VBR to VC region) of the TVS element. Also see Figures 5 and 6 for further protection details in rated peak

pulse power for unidirectional and bidirectional configurations respectively.

8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503

Microsemi

Scottsdale Division Page 2

6-20-2007 REV E

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SAC5.0 thru SAC50, e3

500 WATT LOW CAPACITANCE

TRANSIENT VOLTAGE SUPPRESSOR

SCOTTSDALE DIVISION

ELECTRICAL CHARACTERISTICS @ 25oC

MICROSEMI

PART

NUMBER

REVERSE

STAND-OFF

VOLTAGE

(Note 1)

VWM

Volts

BREAKDOWN

VOLTAGE

V(BR) @ I(BR)

1.0mA

V(BR)

Volts

Min.

MAXIMUM

STANDBY

CURRENT

ID @VWM

μA

MAXIMUM

CLAMPING

VOLTAGE

@ IP = 5.0A

Volts

MAXIMUM

PEAK PULSE

CURRENT

RATING

(Note 2)

IPP

Amps

MAXIMUM

CAPACITANCE

@ O Volts

WORKING

INVERSE

BLOCKING

VOLTAGE

VWIB

Volts

INVERSE

BLOCKING

LEAKAGE

CURRENT

@ VWIB

IIB µA

PEAK

INVERSE

BLOCKING

VOLTAGE

VPIB

Volts

SAC5.0

SAC6.0 5.0

6.0 7.60

7.90 300

300 10.0

11.2 44

41 30

30 75

75 10

10 100

100

SAC7.0

SAC8.0 7.0

8.0 8.33

8.89 300

100 12.6

13.4 38

36 30

30 75

75 10

10 100

100

SAC8.5

SAC10 8.5

10 9.44

11.10 50

5.0 14.0

16.3 34

29 30

30 75

75 10

10 100

100

SAC12

SAC15 12

15 13.30

16.70 5.0

5.0 19.0

23.6 25

20 30

30 75

75 10

10 100

100

SAC18

SAC22 18

22 20.00

24.40 5.0

5.0 28.8

35.4 15

14 30

30 75

75 10

10 100

100

SAC26

SAC36 26

36 28.90

40.0 5.0

5.0 42.3

60.0 11.1

8.6 30

30 75

75 10

10 100

100

SAC45

SAC50 45

50 50.00

55.50 5.0

5.0 77.0

88.0 6.8

5.8 30

30 150

150 10

10 200

200

Note 1: A transient voltage suppressor is normally selected according to voltage (VWM), which should be equ a l to or greater than the dc or continuous peak

operating voltage level.

Note 2: Test in TVS avalanche direction. Do not pulse in “forwar d” direction. See section for “Schematic Applications” herein.

GRAPHS

SAC5.0 thru SAC50, e3

w – Pulse Width μs

FIGURE 1

8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503

Microsemi

Scottsdale Division Page 3

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SAC5.0 thru SAC50, e3

500 WATT LOW CAPACITANCE

TRANSIENT VOLTAGE SUPPRESSOR

SCOTTSDALE DIVISION

Peak Power

(Single Pulse)

–

Peak Pulse Current

% of Rated Power

Average

Power

Lead Length = 3/8”

TL – Lead Temperature – oC t – Time – msec

FIGURE 2 FIGURE 3

SCHEMATIC APPLICATIONS

The TVS low capacitance device configuration is shown in Figure 4. As a further option for unidirectional applications, an additional low

capacitance rectifier diode may be used in parallel in the same polarity direction as the TVS as shown in Figure 5. In applications where random

high voltage transients occur, this will prevent reverse transients from damaging the internal low capacitance rectifier diode and also provide a

low voltage conducting direction. The added rectifier diode should be of similar low capacitance and also have a higher reverse voltage rating

than the TVS clamping voltage VC. The Microsemi recommended rectifier part numb er is the “LCR60” for the application in Figure 5. If using two

(2) low capacitance TVS devices in anti-parallel for bidirectional applications, this added protective feature for both directions (including the

reverse of each rectifier diode) is also provided. The unidirectional and bidirectional configurations in Figure 5 and 6 will both result in twice the

capacitance of Figure 4.

FIGURE 4 FIGURE 5 FIGURE 6

SAC5.0 thru SAC50, e3

TVS with internal Low Optional Unidirectional Optional Bidirectional

Cap acitance Diode configuration (TVS and configuration (two TVS

separate rectifier diode) devices in anti-pa rallel)

in parallel)

8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503

Microsemi

Scottsdale Division Page 4

6-20-2007 REV E

WWW.Microsemi .COM

SAC5.0 thru SAC50, e3

500 WATT LOW CAPACITANCE

TRANSIENT VOLTAGE SUPPRESSOR

SCOTTSDALE DIVISION

PACKAGE DIMEN SIONS

SAC5.0 thru SAC50, e3

8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503