DESCRIPTION
The Interpoint™ MTR Series™ of dc-dc converters offers up
to 30 watts of output power from single, dual, or triple output
configurations. MTR (40) models have an input voltage range
of 16 to 40 and transient protection up to 50 Vin for up to 50
milliseconds. They operate over the full military temperature
range with up to 84% efficiency. MTR converters are packaged
in hermetically sealed metal cases, making them ideal for use
in military, aerospace and other high reliability applications. The
converters are offered with standard screening, “ES” screening,
or fully compliant to “883” MIL-PRF-38534 Class H screening.
See “Table 12: Element Evaluation” on page 25 and “Table 13:
Environmental Screening” on page 26 for more information.
Standard microcircuit drawings (SMD) are available. See
“Table 3: SMD Number Cross Reference” on page 8.
Converter Design
The MTR converters are constant frequency, pulse-width
mod ulated switching regulators which use a quasi-square wave,
single ended, forward converter design. Tight load regulation is
maintained via wide bandwidth magnetic feedback and, on single
output models, through use of remote sense. On dual output
models, the positive output is independently regulated and the
negative output is cross regulated through the use of tightly
coupled magnetics. The MTR Series triple output dc-dc
converter’s design includes individual regulators on the auxiliary
outputs which provide for no cross regulation error when a
minimum 300 mA load is maintained on the main (+5) output.
Indefinite short circuit protection and overload protection are
provided by a constant current-limit feature. This protective
system senses current in the converter’s secondary stage and
limits it to approximately 125% of the maximum rated output
current.
MTR converters are provided with internal filtering capacitors
that help reduce the need for external components in normal
operation. Use our FMCE-0328™, FMCE-0528™ or FMCE-
0828™ EMI filter to meet the requirements of MIL-STD-461C
CE03 and CS01 and/or MIL-STD-461D, E and F CE102 and
CS101 levels of conducted emissions. Or use the FM-704A for
transient suppression and to meet MIL-STD-461C CE03.
Cover Marking
The cover marking for the MTR 40 is “MTR DC-DC
CONVERTER” under the model number. See “Figure 11: Cover
Marking for MTR - 40 Vin” on page 8.
synChronization
Synchronizing the converter with the system clock allows
the designer to confine switching noise to clock transitions,
minimizing interference and reducing the need for filtering. In
sync mode, the converter will run at any frequency between 500
kHz and 675 kHz for singles and duals and between 500 and 700
for triples. The sync control operates with a duty cycle between
40% and 60%. The sync pin must be connected to input common
pin when not in use.
FEATURES
No cross-regulation error in triple output models
Operating temperature -55° to +125°C
• Input voltage range 16 to 40 VDC
• Transient protection 50 Vin for 50 ms
• Fully isolated, magnetic feedback
• Fixed high frequency switching
• Inhibit and synchronization function
• Indefinite short circuit and overload protection
MODELS
VDC Output
SINGLE DUAL TRIPLE
3.3 ±5 +5 & ±12
5 ±12 +5 & ±15
12 ±15
15
18
also see our iMproveD Mtr (50)
16 - 50 Vin, 80 V transient / 50 ms.
Datasheet at www.interpoint.com/mtr50
Crane Aerospace & Electronics Power Solutions
MTR (40) Single, Dual and Triple DC-DC Converters
Page 1 of 26
28 (16-40) VOLT INPUT – 30 WATT
MTR-01 Rev AA - 2013.09.04
Crane Aerospace & Electronics
Power Solutions – Interpoint Products
10301 Willows Rd. NE, Redmond, WA 98052
+1.425.882.3100 • power@crane-eg.com
www.craneae.com/interpoint
WiDe input voltage range
MTR converters are designed to provide full power over a
full 16 to 40 VDC input voltage range. Operation below 16
volts, including MIL-STD-704A emergency power conditions is
possible with derated power. Refer to the low line dropout graphs
(“Figure 27”, “Figure 35” and “Figure 36”) for details.
DynaMiC response
The MTR Series feed-forward compensation system provides
excellent dynamic response and noise rejection. Audio rejection
is typically 40 dB for singles and duals and 50 dB for triples. The
minimum to maximum step line transition response is typically
less than 4%.
inhibit FunCtion
MTR converters provide an inhibit terminal that can be used to
disable internal switching, resulting in no output voltage and very
low quiescent input current. The converter is inhibited when the
inhibit pin is pulled below 0.8 V and enabled when its inhibit pin
is left floating. An external inhibit interface should be capable of
pulling the converter’s inhibit pin below 0.8 V while sinking the
maximum inhibit current and also allowing the inhibit pin to float
high to enable the converter. A voltage should not be applied to
the inhibit pin. The open circuit voltage present on the inhibit pin
is 9 to 11 V.
Figure 1: Mtr single bloCk DiagraM
Output
Common
Positive
Output
Positive
Input
Inhibit
Input
Common
Input
Common
Input
Common
Sync In
MTR Single Output
Input Filter
Driver
PWM
Case
VBIAS
Current Limit Voltage
Feedback
Crane Aerospace & Electronics Power Solutions
MTR (40) Single, Dual and Triple DC-DC Converters
28 (16-40) VOLT INPUT – 30 WATT
www.craneae.com/interpoint Page 2 of 26
MTR-01 Rev AA - 2013.09.04
Figure 2: Mtr Dual /883 bloCk DiagraM
Input
Common
Input
Common
MTR Series Dual Output /883
Input Filter
Driver
L2 A
L2 B
Output
Common
Output
Common
Positive
Output
Negative
Output
Positive
Input
Inhibit
Sync
Input
Common
Case
Output
Common
PWM
VBIAS
Current Limit Voltage
Feedback
Crane Aerospace & Electronics Power Solutions
MTR (40) Single, Dual and Triple DC-DC Converters
28 (16-40) VOLT INPUT – 30 WATT
www.craneae.com/interpoint Page 3 of 26
MTR-01 Rev AA - 2013.09.04
Figure 3: Mtr Dual non-883 bloCk DiagraM
Input
Common
Input
Common
MTR Series Dual Output non-883
Input Filter
Driver
L2 A
L2 B
Output
Common
Output
Common
Positive
Output
Negative
Output
Active
Preload
Positive
Input
Inhibit
Sync
Input
Common
Case
Output
Common
PWM
VBIAS
Current Limit Voltage
Feedback
Crane Aerospace & Electronics Power Solutions
MTR (40) Single, Dual and Triple DC-DC Converters
28 (16-40) VOLT INPUT – 30 WATT
www.craneae.com/interpoint Page 4 of 26
MTR-01 Rev AA - 2013.09.04
Input
Common
Input
Common
MTR Series Triple Output
Input Filter
Driver
Output
Common
Output
Common
Main
Output
Positive
Auxiliary
Positive
Input
Inhibit
Sync
Input
Common
Case
Output
Common
PWM
Negative
Auxiliary
VBIAS
Output
Common
Output
Common
CS2
CS2
CS1
CS1
Current Limit Voltage
Feedback
Regulator
Regulator
Figure 4: Mtr triple bloCk DiagraM
Crane Aerospace & Electronics Power Solutions
MTR (40) Single, Dual and Triple DC-DC Converters
28 (16-40) VOLT INPUT – 30 WATT
www.craneae.com/interpoint Page 5 of 26
MTR-01 Rev AA - 2013.09.04
Notes for Remote Sense and Trim
1. When trimming output voltage and/or remote sensing, the total output voltage increase must be
less than 0.6 volts at the converters pins. Do not exceed the maximum power.
2. If neither voltage trim nor remote sense will be used, connect pin 3 to pin 4 and pin 5 to pin 6.
3. CAUTION: The converter will be permanently damaged if the remote sense (pin 6) is shorted to
ground. Damage may also result if the output common or positive output is disconnected from
the load with the remote sense leads connected to the load.
4. When using remote sense for voltage compensation or when using remote sense for trim, the
output will drift over temperature. Contact Applications Engineering for more information at
powerapps@crane-eg.com
EXTERNAL TRIM CONNECTION
1 Make connections at converter.
RL
OUTPUT
COMMON
MTR SINGLE OUTPUT CONVERTER
4
3
510
1
+VIN
INPUT
COMMON
6
SENSE
RETURN
SENSE
POSITIVE
OUTPUT
RT
1
1
Figure 5: triM ConneCtion 1, 2, 3
Trim Formulas
Vout = desired output voltage; Rt = trim resistor
3.3V: Rt = 1300 * Vout – 4304
1.2475
5V: Rt = 1300 * Vout – 6512
1.2475
12V: Rt = 1300 * Vout – 15631
1.2475
15V: Rt = 1300 * Vout – 19498
1.2475
RL
OUTPUT
COMMON
REMOTE SENSE CONNECTION
2 Make connections at load.
MTR SINGLE OUTPUT CONVERTER
4
3
510
1
+VIN
INPUT
COMMON
6
SENSE
RETURN
SENSE
POSITIVE
OUTPUT
2
2
Figure 6: reMote sense ConneCtion 4
TRIM AND REMOTE SENSE (AVAILABLE ON SINGLE 5, 12 AND 15 OUTPUT MODELS ONLY)
Crane Aerospace & Electronics Power Solutions
MTR (40) Single, Dual and Triple DC-DC Converters
28 (16-40) VOLT INPUT – 30 WATT
www.craneae.com/interpoint Page 6 of 26
MTR-01 Rev AA - 2013.09.04
BOTTOM VIEW
MTR SINGLE
FLANGED AND NON-FLANGED
Dot on top of cover indicates pin one.
Dotted line outlines flanged package option.
610
789
1 2
345
Figure 7: pin out single output MoDels
See “Figure 38: Case H2 – Single and 883 Dual Models” on page 20 and
“Figure 41: Case K3 – Single and Dual 883 Models” on page 23 for dimensions.
BOTTOM VIEW
MTR DUAL
FLANGED AND NON-FLANGED
Dot on top of cover indicates pin one.
610
789
1 2
345
Dotted line outlines flanged package option.
Figure 9: pin out Dual output MoDels
See “Figure 38: Case H2 – Single and 883 Dual Models” on page 20,
“Figure 39: Case H4 – Dual Models - non 883” on page 21, “Figure 41:
Case K3 – Single and Dual 883 Models” on page 23 and “Figure 42:
Case K5 – Dual Models - non 883” on page 24 for dimensions.
BOTTOM VIEW
MTR TRIPLE
FLANGED AND NON-FLANGED
Dotted line outlines flanged package option.
10 9 8 7 6
12345
Squared corner and dot on top
of package indicate pin one.
Figure 8: pin out triple output MoDels
See “Figure 37: Case F1 – Triple Models” on page 19 and “Figure 40:
Case J1 – Triple Models” on page 22 for dimensions.
PIN OUT
Pin Single Output Dual Output Triple Output
1Positive Input Positive Input Positive Input
2 Inhibit Inhibit Main (+5) Output
3Sense Return Positive Output Output Common
4Output Common Output Common Neg. Aux. Output
5Positive Output Negative Output Pos. Aux. Output
6Positive Sense Case Ground Case Ground
7Case Ground Case Ground Case Ground
8Case Ground Case Ground Inhibit
9 Sync Sync Sync
10 Input Common Input Common Input Common
PINS NOT IN USE
Inhibit Leave unconnected
Sync In Connect to input common
Sense Lines Must be connected to
appropriate outputs
table 1: pin out
table 2: pins not in use
Crane Aerospace & Electronics Power Solutions
MTR (40) Single, Dual and Triple DC-DC Converters
28 (16-40) VOLT INPUT – 30 WATT
www.craneae.com/interpoint Page 7 of 26
MTR-01 Rev AA - 2013.09.04
MODEL NUMBERING KEY
MTR 28 512 T F / 883
Base Model
Input Voltage
Output Voltage
Screening
Number of Outputs
Case Option
("F" indicates flanged option, non-flanged
case has no designator in this position)
(S = single, D = dual, T = triple)
(Main and aux. Vout for triple models)
(Standard screening has no designator
in this position.)
Figure 10: MoDel nuMbering key
MODEL NUMBER OPTIONS
tO Determine the mODel number enter One OptiOn frOm
eaCh CategOry in the fOrm belOw.
CATEGORY Base Model and
Input Voltage
Output Voltage 1Number of
Outputs 2
Case Options 3 Screening 4
OPTIONS MTR28
3R3, 05, 12, 15, 18 S(non-flanged, leave blank) (standard, leave blank)
05, 12, 15 DF (flanged) ES
512, 515 T 883
FILL IN FOR
MODEL # MTR28 /
Notes:
1. Output Voltage: An R indicates a decimal point. 3R3 is 3.3 volts out. The value of 3R3 and 18 are only available in single output models. The 512 and 515 triple
output converters are +5 volt main and ±12 or ±15 volt auxiliaries.
2. Number of Outputs: S is a single output, D is a dual output, and T is a triple output
3. Case Options: For the standard case (“Figure 38: Case H2 – Single and 883 Dual Models” on page 20, “Figure 39: Case H4 – Dual Models - non 883” on page
21 and “Figure 37: Case F1 – Triple Models” on page 19) leave the case option blank. For the flanged case option (“Figure 41: Case K3 – Single and Dual
883 Models” on page 23, “Figure 42: Case K5 – Dual Models - non 883” on page 24 and “Figure 40: Case J1 – Triple Models” on page 22), insert the letter
F in the Case Option position.
4. Screening: For standard screening leave the screening option blank. For other screening options, insert the desired screening level. For more information see
“Table 12: Element Evaluation” on page 25 and “Table 13: Environmental Screening” on page 26.
SMD NUMBERS
StanDarD miCrOCirCuit
Drawing (SmD)
SmD reViSiOn
number 1
mtr Similar part
5962-0150101HXC D MTR283R3S/883
5962-9306801HXC G MTR2805S/883
5962-9306901HXC G MTR2812S/883
5962-9307001HXC E MTR2815S/883
5962-9320501HXC E MTR2805D/883
5962-9307101HXC E MTR2812D/883
5962-9307201HXC G MTR2815D/883
5962-9307301HXC F MTR28512T/883
5962-9307401HXC H MTR28515T/883
1. The SMD revision number distinguishes the MTR (40) converter from
the MTR (50) converter. The SMD numbers are the same. If ordering to
the SMD number, please order to the desired SMD revision, listed above,
for the MTR (40).
To indicate the flanged case option change the “X” to “Z” In the SMD
number. The SMD number shown is for Class H screening, non-flanged.
See the SMD for the numbers for other screening and radiation levels. For
exact specifications for an SMD product, refer to the SMD drawing. SMDs
can be downloaded from: http://www.dscc.dla.mil/programs/smcr
Figure 11: Cover Marking For Mtr - 40 vin
(note: Cover Marking For Mtr (50) - 50 vin is
“Mtr (50) DC-DC Converter” unDer the MoDel nuMber)
table 3: sMD nuMber Cross reFerenCe
table 4: MoDel nuMber options
Crane Aerospace & Electronics Power Solutions
MTR (40) Single, Dual and Triple DC-DC Converters
28 (16-40) VOLT INPUT – 30 WATT
www.craneae.com/interpoint Page 8 of 26
MTR-01 Rev AA - 2013.09.04
ALL MODELS
PARAMETER CONDITIONS MIN TYP MAX UNITS
LEAD SOLDERING TEMPERATURE 110 seconds max. — — 300 °C
STORAGE TEMPERATURE 1-65 — +150 °C
CASE OPERATING FULL POWER -55 — +125 °C
TEMPERATURE ABSOLUTE 1 -55 — +135
DERATING OUTPUT POWER/CURRENT 1LINEARLY From 100% at 125°C to 0% at 135°C
ESD RATING 1 CLASS 1
MIL-PRF-38534, 3.9.5.8.2
MIL-STD-883
METHOD 3015 0 - 1999 V
ISOLATION, ANY PIN TO CASE
EXCEPT CASE PIN @ 500 VDC AT 25°C 100 — — Megohms
INPUT TO OUTPUT CAPACITANCE 1SINGLES AND DUALS — 50 — pF
TRIPLES — 100 —
CURRENT LIMIT 2% OF FULL LOAD — 125 — %
AUDIO REJECTION 1SINGLES AND DUALS — 40 — dB
TRIPLES — 50 —
CONVERSION FREQUENCY SINGLES AND DUALS 550 — 650 kHz
FREE RUN -55° TO +125°C TRIPLES 525 — 650
SYNCHRONIZATION INPUT FREQUENCY
SINGLES AND DUALS 500 — 675 kHz
TRIPLES 500 — 700
DUTY CYCLE 1 40 — 60 %
ACTIVE LOW — — 0.8 V
ACTIVE HIGH 14.5 — 5.0
REFERENCED TO INPUT COMMON
IF NOT USED CONNECT TO INPUT COMMON
INHIBIT ACTIVE LOW (OUTPUT DISABLED) INHIBIT PIN PULLED
LOW — — 0.8 V
Do not apply a voltage to the inhibit pin. 3 INHIBIT PIN SOURCE
CURRENT 1
SINGLES AND DUALS — — 6 mA
TRIPLES — — 8
REFERENCED TO INPUT COMMON
INHIBIT ACTIVE HIGH (OUTPUT ENABLED)
INHIBIT PIN CONDITION OPEN COLLECTOR OR
UNCONNECTED
Do not apply a voltage to the inhibit pin. 3 OPEN INHIBIT PIN
VOLTAGE 19 — 11 V
Notes:
1. Guaranteed by design and/or analysis. Not an in-line test.
2. Dual and triple outputs: The over-current limit will trigger when the sum of the currents from both dual outputs or both auxiliary outputs (triple)
reaches 125% (typical value) of the maximum rated “total” current of both outputs.
3. An external inhibit interface should be used to pull the inhibit low or leave it floating. The inhibit pin can be left unconnected if not used.
table 5: operating ConDitions, all MoDels : 25°C tC, 28 vDC vin, 100% loaD, unless otherWise speCiFieD.
Crane Aerospace & Electronics Power Solutions
MTR (40) Single, Dual and Triple DC-DC Converters
28 (16-40) VOLT INPUT – 30 WATT
www.craneae.com/interpoint Page 9 of 26
MTR-01 Rev AA - 2013.09.04
Notes
1. Guaranteed by design and/or analysis. Not an in-line test.
2. Operation is limited below 16V (see “Figure 27” on page 17).
3. Tested with 6800 pF ceramic bypass capacitor connected externally from input
common to case.
4. Indefinite short circuit protection not guaranteed above 125°C case.
5. Recovery time is measured from application of the transient to point at which
VOUT is within 1% of final value.
6. Tested on release from inhibit.
SINGLE OUTPUT MODELS MTR283R3S MTR2805S MTR2812S
UNITS
PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX MIN TYP MAX
OUTPUT VOLTAGE 3.201 3.30 3.399 4.85 5.00 5.15 11.64 12.00 12.36 VDC
OUTPUT CURRENT Vin = 16 to 40 VDC 0 — 6.06 0 — 5.0 0 — 2.5 A
OUTPUT POWER Vin = 16 to 40 VDC 0 — 20 0 — 25 0 — 30 W
OUTPUT RIPPLE TC = 25°C — 15 40 — 35 50 — 25 40 mV p-p
10 kHz - 2 MHz TC = -55°C TO +125°C — — 50 — 50 90 — 40 90
LINE REGULATION 2VIN = 16 TO 40 VDC — — 10 — 15 50 — 15 50 mV
LOAD REGULATION NO LOAD TO FULL — — 10 — 15 50 — 15 50 mV
INPUT VOLTAGE CONTINUOUS 16 28 40 16 28 40 16 28 40 VDC
NO LOAD TO FULL TRANSIENT 50 msec. — — 50 — — 50 — — 50 V
INPUT CURRENT NO LOAD — 30 75 — 35 75 — 35 75 mA
INHIBITED — 7 8 — 3 8 — 3 8
INPUT RIPPLE CURRENT 3 10 kHz - 10 MHz — 25 50 — 20 50 — 20 50 mA p-p
EFFICIENCY TC = 25°C 74 76 — 76 78 — 80 83 — %
TC = -55°C TO +125°C 71 — — 73 — — 77 — —
LOAD FAULT 4POWER DISSIPATION — — 12 — — 12 — — 12 W
SHORT CIRCUIT RECOVERY 1— 1.4 6 — 1.4 5 — 1.4 5 ms
STEP LOAD RESPONSE TRANSIENT — ±125 ±250 — ±200 ±300 — ±250 ±400 mV pk
50% - 100% - 50% RECOVERY 1, 5 — — 200 — 60 200 — 60 200 µs
STEP LINE RESPONSE TRANSIENT — — ±300 — ±200 ±300 — ±400 ±500 mV pk
16 - 40 -16 VDC RECOVERY 5— — 300 — — 300 — — 300 µs
START-UP 6 DELAY — 1.4 5 — 1.4 5 — 1.4 5 m sec
FULL LOAD OVERSHOOT 1 — 0 50 — 0 50 — 0 120 mV pk
CAPACITIVE LOAD 1
TC = 25°C
NO EFFECT ON DC
PERFORMANCE — — 300 — — 300 — — 300 µF
table 6: eleCtriCal CharaCteristiCs: -55°C to +125°C tC, 28 vDC vin, 100% loaD, Free run, unless otherWise speCiFieD.
Crane Aerospace & Electronics Power Solutions
MTR (40) Single, Dual and Triple DC-DC Converters
28 (16-40) VOLT INPUT – 30 WATT
www.craneae.com/interpoint Page 10 of 26
MTR-01 Rev AA - 2013.09.04
Notes
1. Guaranteed by design and/or analysis. Not an in-line test.
2. Operation is limited below 16V (see “Figure 27” on page 17).
3. Tested with 6800 pF ceramic bypass capacitor connected
externally from input common to case.
4. Indefinite short circuit protection not guaranteed above 125°C case.
5. Recovery time is measured from application of the transient to
point at which VOUT is within 1% of final value.
6. Tested on release from inhibit.
SINGLE OUTPUT MODELS MTR2815S MTR2818S
UNITS
PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX
OUTPUT VOLTAGE 14.70 15.00 15.30 17.46 18.00 18.54 VDC
OUTPUT CURRENT Vin = 16 to 40 VDC 0 — 2.0 0 — 1.67 A
OUTPUT POWER Vin = 16 to 40 VDC 0 — 30 0 — 30 W
OUTPUT RIPPLE TC = 25°C — 25 40 — — 40 mV p-p
10 kHz - 2 MHz TC = -55°C TO +125°C — 40 90 — — 90
LINE REGULATION 2VIN = 16 TO 40 VDC — 15 50 — — 50 mV
LOAD REGULATION NO LOAD TO FULL — 15 50 — — 50 mV
INPUT VOLTAGE CONTINUOUS 16 28 40 16 28 40 VDC
NO LOAD TO FULL TRANSIENT 50 msec. — — 50 — _ 50 V
INPUT CURRENT NO LOAD — 35 75 — — 75 mA
INHIBITED — 3 8 — — 8
INPUT RIPPLE CURRENT 3 10 kHz - 10 MHz — 20 50 — — 50 mA p-p
EFFICIENCY TC = 25°C 81 84 — 81 84 — %
TC = -55°C TO +125°C 78 — — 78 — —
LOAD FAULT 4POWER DISSIPATION — — 12 — — 12 W
SHORT CIRCUIT RECOVERY 1— 1.4 5 — 1.4 5 ms
STEP LOAD RESPONSE TRANSIENT — ±350 ±500 — — ±600 mV pk
50% - 100% - 50% RECOVERY 1, 5 — 60 200 — 60 200 µs
STEP LINE RESPONSE TRANSIENT — ±500 ±600 — ±500 ±800 mV pk
16 - 40 -16 VDC RECOVERY 5— — 300 — — 300 µs
START-UP 6 DELAY — 1.4 5 — — 5 m sec
FULL LOAD OVERSHOOT 1 — 0 150 — 0 180 mV pk
CAPACITIVE LOAD 1
TC = 25°C
NO EFFECT ON DC
PERFORMANCE — — 300 — — 300 µF
table 7: eleCtriCal CharaCteristiCs: -55°C to +125°C tC, 28 vDC vin, 100% loaD, Free run, unless otherWise speCiFieD.
Crane Aerospace & Electronics Power Solutions
MTR (40) Single, Dual and Triple DC-DC Converters
28 (16-40) VOLT INPUT – 30 WATT
www.craneae.com/interpoint Page 11 of 26
MTR-01 Rev AA - 2013.09.04
Notes
1. Guaranteed by design and/or analysis. Not an in-line test.
2. Up to 90% of the total output current/power is available from either output
providing the positive output is carrying at least 10% of the total output power.
3. Operation is limited below 16 V (“Figure 27” on page 17).
4. Effect on negative VOUT from 50%/50% loads to 80%/20% or 20%/80% loads.
5. Effect on negative VOUT from 50%/50% loads to 90%/10% or 10%/90% loads.
See Figure 20.
6. Tested with 6800 pF ceramic bypass capacitor connected externally from input
common to case.
7. Indefinite short circuit protection not guaranteed above 125°C case.
8. Recovery time is measured from application of the transient to point at which
VOUT is within 1% of final value.
9. Tested on release from inhibit.
DUAL OUTPUT MODELS - /883 ONLY MTR2805D MTR2812D MTR2815D
UNITS
PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX MIN TYP MAX
OUTPUT VOLTAGE + VOUT 4.850 5.00 5.150 11.64 12.00 12.36 14.55 15.00 15.45 VDC
- VOUT 4.825 5.00 5.172 11.58 12.00 12.42 14.47 15.00 15.53
OUTPUT CURRENT 2 EITHER OUTPUT 0 2.5 4.5 10 1.25 2.25 10 1.00 1.80 1
A
VIN = 16 TO 40 VDC TOTAL OUTPUT — — 5 — — 2.5 — — 2.00
OUTPUT POWER 2 EITHER OUTPUT 0 12.5 22.5 1 0 15 27 1 0 15 27 1
W
VIN = 16 to 40 VDC TOTAL OUTPUT — — 25 — — 30 — — 30
OUTPUT RIPPLE TC = 25°C — 20 80 — 30 80 — 25 80 mV p-p
10 kHz - 2 MHz ± VOUT TC = -55°C TO +125°C — 40 90 — 40 120 — 40 120
LINE REGULATION 3+ VOUT — 10 50 — 10 50 — 10 50 mV
VIN = 16 TO 40 VDC - VOUT — 50 100 — 50 150 — 50 180
LOAD REGULATION + VOUT — 5 50 — 15 50 — 15 50 mV
NO LOAD TO FULL - VOUT — 25 100 — 30 150 — 30 180
CROSS REGULATION 1SEE NOTE 4 —4 6—4 6—4 6 %
EFFECT ON -VOUT, 25°C SEE NOTE 5 — 7 12 — 4 8.3 — 3 8
INPUT VOLTAGE CONTINUOUS 16 28 40 16 28 40 16 28 40 VDC
NO LOAD TO FULL TRANSIENT 50 msec.10 — 50 0 — 50 0 — 50 V
INPUT CURRENT NO LOAD — 35 75 – 50 75 — 50 75 mA
INHIBITED — 3 8 — 3 8 — 3 8
INPUT RIPPLE CURRENT 6 10 kHz - 10 MHz — 15 50 — 20 50 — 20 50 mA p-p
EFFICIENCY TC = 25°C 76 78 — 79 81 — 80 83 — %
BALANCED LOAD TC = -55°C TO +125°C 73 — — 76 — — 77 — —
LOAD FAULT 7POWER DISSIPATION — 10 12 — 10 12 — 10 12 W
SHORT CIRCUIT RECOVERY 1— 1.4 5.0 — 1.4 5.0 — 1.4 5.0 ms
STEP LOAD RESPONSE TRANSIENT — ±200 ±300 — ±150 ±300 — ±200 ±400 mV pk
50% - 100% - 50% ± VOUT RECOVERY 1, 8 — 100 200 — 100 200 — 100 200 µs
STEP LINE RESPONSE 1TRANSIENT — ±200 ±400 — ±200 ±400 — ±400 ±500 mV pk
16 - 40 -16 VDC ± VOUT RECOVERY 8— — 300 — — 300 — — 300 µs
START-UP 9 DELAY — 1.4 5 — 1.4 5 — 1.4 5 ms
FULL LOAD OVERSHOOT 1 — 0 180 — 0 120 — 0 150 mV pk
CAPACITIVE LOAD 1
TC = 25°C
NO EFFECT ON DC
PERFORMANCE — — 500 — — 500 — — 500 µF
table 8: eleCtriCal CharaCteristiCs: -55°C to +125°C tC, 28 vDC vin, 100% loaD, Free run, unless otherWise speCiFieD.
Crane Aerospace & Electronics Power Solutions
MTR (40) Single, Dual and Triple DC-DC Converters
28 (16-40) VOLT INPUT – 30 WATT
www.craneae.com/interpoint Page 12 of 26
MTR-01 Rev AA - 2013.09.04
Notes
1. Guaranteed by design and/or analysis. Not an in-line test.
2. MTR2805D (standard and /ES) is specified at 25°C only.
3. Up to 90% of the total output current/power is available from either output
providing the positive output is carrying at least 10% of the total output power.
4. Operation is limited below 16 V. See “Figure 27” on page 17.
5. Effect on negative VOUT from 50%/50% loads to 80%/20% or 20%/80% loads.
6. Effect on negative VOUT from 50%/50% loads to 90%/10% or 10%/90% loads.
See “Figure 25” on page 17.
7. Tested with 6800 pF ceramic bypass capacitor connected externally from input
common to case.
8. Indefinite short circuit protection not guaranteed above 125°C case.
8. Recovery time is measured from application of the transient to point at which
VOUT is within 1% of final value.
10. Tested on release from inhibit.
DUAL OUTPUT MODELS - STANDARD AND /ES MTR2805D 2MTR2812D MTR2815D
UNITS
PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX MIN TYP MAX
OUTPUT VOLTAGE + VOUT 4.850 5.00 5.150 11.88 12.00 12.12 14.85 15.00 15.15 VDC
- VOUT 4.825 5.00 5.172 11.58 12.00 12.42 14.47 15.00 15.53
OUTPUT CURRENT 3 EITHER OUTPUT 0 2.5 4.5 10 1.25 2.25 10 1.00 1.80 1
A
VIN = 16 TO 40 VDC TOTAL OUTPUT — — 5 — — 2.5 — — 2.00
OUTPUT POWER 3 EITHER OUTPUT 0 12.5 22.5 1 0 15 27 1 0 15 27 1
W
VIN = 16 to 40 VDC TOTAL OUTPUT — — 25 — — 30 — — 30
OUTPUT RIPPLE TC = 25°C — 20 80 — 30 80 — 25 80 mV p-p
10 kHz - 2 MHz ± VOUT TC = -55°C TO +125°C — — — — 40 120 — 40 120
LINE REGULATION 4+ VOUT — 10 50 — 10 50 — 10 50 mV
VIN = 16 TO 40 VDC - VOUT — 50 100 — 50 150 — 50 180
LOAD REGULATION + VOUT — 5 50 — 15 50 — 15 50 mV
NO LOAD TO FULL - VOUT — 25 100 — 30 150 — 30 180
CROSS REGULATION 1SEE NOTE 5 —4 6—4 6—4 6 %
EFFECT ON -VOUT, 25°C SEE NOTE 6 — 7 12 — 4 8.3 — 3 8
INPUT VOLTAGE CONTINUOUS 16 28 40 16 28 40 16 28 40 VDC
NO LOAD TO FULL TRANSIENT 50 msec.10 — 50 0 — 50 0 — 50 V
INPUT CURRENT NO LOAD — 35 50 – 50 75 — 50 75 mA
INHIBITED — 3 8 — 3 8 — 3 8
INPUT RIPPLE CURRENT 7 10 kHz - 10 MHz — 15 40 — 20 50 — 20 50 mA p-p
EFFICIENCY TC = 25°C 76 78 — 78 81 — 80 83 — %
BALANCED LOAD TC = -55°C TO +125°C — — — 76 — — 77 — —
LOAD FAULT 8POWER DISSIPATION — 10 12 — 10 12 — 10 12 W
SHORT CIRCUIT RECOVERY 1— 1.4 5.0 — 1.4 5.0 — 1.4 5.0 ms
STEP LOAD RESPONSE TRANSIENT — ±200 ±300 — ±150 ±300 — ±200 ±400 mV pk
50% - 100% - 50% ± VOUT RECOVERY 1, 9 — 100 200 — 100 200 — 100 200 µs
STEP LINE RESPONSE 1TRANSIENT 9 — ±200 ±400 — ±200 ±400 — ±400 ±500 mV pk
16 - 40 -16 VDC ± VOUT RECOVERY 9— — 300 — — 300 — — 300 µs
START-UP 10 DELAY — 1.4 5 — 1.4 5 — 1.4 5 ms
FULL LOAD OVERSHOOT 1— 0 180 — 0 120 — 0 150 mV pk
CAPACITIVE LOAD 1
TC = 25°C
NO EFFECT ON DC
PERFORMANCE — — 500 — — 500 — — 500 µF
table 9: eleCtriCal CharaCteristiCs: -55°C to +125°C tC, 28 vDC vin, 100% loaD, Free run, unless otherWise speCiFieD.
Crane Aerospace & Electronics Power Solutions
MTR (40) Single, Dual and Triple DC-DC Converters
28 (16-40) VOLT INPUT – 30 WATT
www.craneae.com/interpoint Page 13 of 26
MTR-01 Rev AA - 2013.09.04
Notes
1. Guaranteed by design and/or analysis. Not an in-line test.
2. The sum of the two aux outputs is not to exceed 10 watts. The maximum
load per aux output is 9 watts.
3. To maintain regulation when operating the ±aux at full load, a minimum
load of 300 mA is required on the main.
4. Measured on each output one at a time with the other outputs at full load.
5. Indefinite short circuit protection not guaranteed above 125°C (case).
6. Response of each output as all outputs are simultaneously transitioned.
Main: 50% - 100% - 50% of main full load
Auxiliaries: 25% - 50% - 25% each, of total auxiliary full load
7. Recovery time is measured from application of the transient to point at
which VOUT is within 1% of regulation.
8. Tested on release from inhibit.
table 10: eleCtriCal CharaCteristiCs: -55°C to +125°C tC, 28 vDC vin, 100% loaD, Free run, unless otherWise speCiFieD.
TRIPLE OUTPUT MODEL – MTR28512T 5 (MAIN) ±12 (AUXILIARIES)
UNITS
PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX
OUTPUT VOLTAGE 4.85 5.00 5.15 ±11.58 12.00 ±12.42 VDC
OUTPUT CURRENT 2 0.3 — 4.0 0 ±0.416 0.750 1
A
VIN = 16 to 40 VDC TOTAL — — — — — 0.833
OUTPUT POWER 20 — 20 0 ±5 9.00 1
W
VIN = 16 to 40 VDC TOTAL — — — — — 10
OUTPUT RIPPLE TC = 25°C — 50 125 — 20 60 mV p-p
10 kHz - 2 MHz TC = -55°C TO +125°C — — 180 — — 60
LINE REGULATION VIN= 16 to 40 VDC — 10 20 — 25 75 mV
LOAD REGULATION 3, 4 — 10 50 — 30 75 mV
INPUT VOLTAGE CONTINUOUS 16 28 40 — — — VDC
TRANSIENT 50 ms 1— — 50 — — — V
INPUT CURRENT NO LOAD — 70 110 — — — mA
INHIBITED — 3.0 6 — — —
INPUT RIPPLE CURRENT 10 kHz - 10 MHz — 20 80 — — — mA p-p
EFFICIENCY TC = 25°C 72 75 — — — — %
TC = -55°C TO +125°C 70 — — — — —
LOAD FAULT 5POWER DISSIPATION — — 14 — — 14 W
ALL OUTPUTS SHORTED RECOVERY 1— 4 6.0 — 4 6.0 ms
STEP LOAD RESPONSE TRANSIENT 6— — ±400 — — ±1500 mV pk
RECOVERY 7— — 0.300 — — 6 ms
STEP LINE RESPONSE 1TRANSIENT — — ±800 — — ±800 mV pk
16 - 40 - 16 VIN RECOVERY 7 — — 5 — — 5 ms
START-UP 8DELAY — 4 6.0 — 4 6.0 ms
OVERSHOOT 1— — 500 — — 1500 mV pk
Crane Aerospace & Electronics Power Solutions
MTR (40) Single, Dual and Triple DC-DC Converters
28 (16-40) VOLT INPUT – 30 WATT
www.craneae.com/interpoint Page 14 of 26
MTR-01 Rev AA - 2013.09.04
table 11: eleCtriCal CharaCteristiCs: -55°C to +125°C tC, 28 vDC vin, 100% loaD, Free run, unless otherWise speCiFieD.
TRIPLE OUTPUT MODEL – MTR28515T 5 (MAIN) ±15 (AUXILIARIES)
UNITS
PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX
OUTPUT VOLTAGE 4.85 5.00 5.15 ±14.47 15.00 ±15.52 VDC
OUTPUT CURRENT 2 0.3 — 4.0 0 ±0.333 0.600 1
A
VIN = 16 to 40 VDC TOTAL — — — — — 0.666
OUTPUT POWER 20 — 20 0 ±5 9.00 1
W
VIN = 16 to 40 VDC TOTAL — — — — — 10
OUTPUT RIPPLE TC = 25°C — 50 125 — 20 60 mV p-p
10 kHz - 2 MHz TC = -55°C TO +125°C — — 180 — — 60
LINE REGULATION VIN= 16 to 40 VDC — 10 20 — 30 75 mV
LOAD REGULATION 3, 4 — 10 50 — 30 75 mV
INPUT VOLTAGE CONTINUOUS 16 28 40 — — — VDC
TRANSIENT 50 ms 1— — 50 — — — V
INPUT CURRENT NO LOAD — 70 120 — — — mA
INHIBITED — 3.0 6 — — —
INPUT RIPPLE CURRENT 10 kHz - 10 MHz — 20 80 — — — mA p-p
EFFICIENCY TC = 25°C 73 75 — — — — %
TC = -55°C TO +125°C 71 — — — — —
LOAD FAULT 5POWER DISSIPATION — — 14 — — 14 W
ALL OUTPUTS SHORTED RECOVERY 1— 4 6.0 — 4 6.0 ms
STEP LOAD RESPONSE TRANSIENT 6— — ±400 — — ±1500 mV pk
RECOVERY 7— — 0.300 — — 6 ms
STEP LINE RESPONSE 1TRANSIENT — — ±800 — — ±800 mV pk
16 - 40 - 16 VIN RECOVERY 7 — — 5 — — 5 ms
START-UP 8DELAY — 4 6.0 — 4 6.0 ms
OVERSHOOT 1— — 500 — — 1500 mV pk
Notes
1. Guaranteed by design and/or analysis. Not an in-line test.
2. The sum of the two aux outputs is not to exceed 10 watts. The maximum
load per aux output is 9 watts.
3. To maintain regulation when operating the ±aux at full load, a minimum
load of 300 mA is required on the main.
4. Measured on each output one at a time with the other outputs at full load.
5. Indefinite short circuit protection not guaranteed above 125°C (case).
6. Response of each output as all outputs are simultaneously transitioned.
Main: 50% - 100% - 50% of main full load
Auxiliaries: 25% - 50% - 25% each, of total auxiliary full load
7. Recovery time is measured from application of the transient to point at
which VOUT is within 1% of regulation.
8. Tested on release from inhibit.
Crane Aerospace & Electronics Power Solutions
MTR (40) Single, Dual and Triple DC-DC Converters
28 (16-40) VOLT INPUT – 30 WATT
www.craneae.com/interpoint Page 15 of 26
MTR-01 Rev AA - 2013.09.04
Typical Performance Curves: 25°C Tc, 28 VDC Vin, 100% load, free run, unless otherwise specified.
50 µs/div
16 TO 40V
MTR2805S STEP LINE RESPONSE
20mV/div 20V/div
VIN
VOUT
Figure 12
50 µs/div
50% 100%
MTR2805S STEP LOAD RESPONSE
100mV/div
25W to 12.5W
12.5W to 25W
Figure 13
Figure 14
50 µs/div
10% 100%
MTR2805S STEP LOAD RESPONSE
200mV/div
25W to 2.5W
2.5W to 25W
Figure 14
Figure 15
OUTPUT POWER (Watts)
MTR2812D EFFICIENCY
EFFICIENCY (%)
60
85
80
75
70
65
5 10 15 20
16V
40V
28V
0
10
20
30
40
50
60
70
80
90
100
0.1 110 100
FREQUENCY (kHz)
AUDIO REJECTION, MTR SERIES
ATTENUATION (dB)
OUTPUT POWER (Watts)
MTR2805S EFFICIENCY
EFFICIENCY (%)
60
85
80
75
70
65
5 10 15 20 25
16V
40V
28V
Figure 16
OUTPUT POWER (Watts)
MTR2812S EFFICIENCY
EFFICIENCY (%)
60
85
80
75
70
65
5
16V
28V
40V
10 15 20 25
OUTPUT POWER (Watts)
MTR2815D EFFICIENCY
EFFICIENCY (%)
65
90
85
80
75
70
5 10 15 20
40V
28V
16V
Figure 17 Figure 18 Figure 19
OUTPUT POWER (Watts)
MTR2815S EFFICIENCY
EFFICIENCY (%)
62
87
82
77
72
67
5
16V
28V
40V
10 15 20 25
Crane Aerospace & Electronics Power Solutions
MTR (40) Single, Dual and Triple DC-DC Converters
28 (16-40) VOLT INPUT – 30 WATT
www.craneae.com/interpoint Page 16 of 26
MTR-01 Rev AA - 2013.09.04
Figure 20 Figure 21
OUTPUT LOAD (%)
COND. B: 50% LOAD +V, 50% to 10% –V
COND. A: 50% LOAD –V, 50% to 10% +V
CROSS REGULATION
–V
OUT
VOLTAGE CHANGE (%)
–8
0
8
10 20 30 40 50
–7
–6
–5
–4
–3
–2
–1
1
2
3
4
5
6
7
COND A
COND B
2812D
2812D
2815D
2805D
2805D
OUTPUT POWER (WATTS)
MTR28512T EFFICIENCY
EFFICIENCY (%)
55
80
75
70
65
60
5 10 15 20 25 30
40V
28V
16V
OUTPUT POWER (Watts)
1% DROP
MTR SINGLES AND DUALS
LOW LINE DROPOUT
INPUT VOLTAGE (Volts)
13.0
13.5
14.0
14.5
15.0
15.5
16.0
9 12 15 18 21 24 27 30
Figure 22
50 µs/div
10% 100%
MTR2815D +VOUT STEP LOAD RESPONSE
100mV/div
3W to 15W
15W to 3W
Figure 23
200 µs/div
MTR2815D TURN-ON INTO NO LOAD
5V/div 20V/div
VIN
+VOUT
–VOUT
Figure 24 Figure 25
3
27 6
24 9
21 12
18 15
15 18
12 21
924
627
330
0
+POUT
–POUT
0
30
OUTPUT LOAD (Watts)
10% to 90% LOAD +V, 90% to 10% LOAD –V
CROSS REGULATION
–V
OUT
VOLTAGE CHANGE (%)
10
9
8
7
6
5
4
3
2
1
0
-1
-2
-3
-4
-5
-6
-7
-8
-9
-10
2812D
2815D
2815D
2812D
2805D
2805D
Figure 26 Figure 27
1V/div 20V/div
500 µs / div
MTR2805S TURN-ON INTO NO LOAD
VIN
VOUT
50 µs/div
25% 50%
MTR2815D +VOUT STEP LOAD RESPONSE
100mV/div
–POUT =15W
7.5W to 15W
15W to 7.5W
50 µs/div
16 TO 40
MTR2815D STEP LINE RESPONSE
20mV/div 20V/div
VIN
+VOUT
–VOUT
Figure 28
Typical Performance Curves: 25°C Tc, 28 VDC Vin, 100% load, free run, unless otherwise specified.
Crane Aerospace & Electronics Power Solutions
MTR (40) Single, Dual and Triple DC-DC Converters
28 (16-40) VOLT INPUT – 30 WATT
www.craneae.com/interpoint Page 17 of 26
MTR-01 Rev AA - 2013.09.04
OUTPUT POWER (WATTS)
1% DROP
MTR28512T LOW LINE DROPOUT VS. LOAD
INPUT VOLTAGE (VOLTS)
13.5
5
14.0
14.5
15.0
15.5
16.0
10 15 20 25 30
Figure 29
OUTPUT POWER (WATTS)
1% DROP
MTR28515T LOW LINE DROPOUT VS. LOAD
INPUT VOLTAGE (VOLTS)
13.5
5
14.0
14.5
15.0
15.5
16.0
10 15 20 25 30
Figure 30 Figure 31
Figure 32
200mV/div
50% 100%
MTR28515T STEP LOAD RESPONSE
+5 V
+AUX
–AUX
50% to 100%
50% to 100%
50 µs/div
100mV/div
1ms/div
5V/div 20V/div
500μs/div
MTR28515T, AUX. (±15)
TURN-ON INTO FULL LOAD
VIN
±15 VOUT
2V/div
500 µs/div
MTR28515T, MAIN (+5)
TURN-ON INTO FULL LOAD
VIN
+5 VOUT
20V/div
Figure 33
OUTPUT POWER (WATTS)
MTR28515T EFFICIENCY
EFFICIENCY (%)
55
80
75
70
65
60
5 10 15 20 25 30
16V
40V
28V
Figure 34
0
10
20
30
40
50
60
70
80
90
100
0.1 110 100
FREQUENCY (kHz)
MTR SERIES AUDIO REJECTION
ATTENUATION (dB)
Figure 35 Figure 36
100mV/div 20V/div
50 µs/div
16V TO 40V
MTR28515T STEP LINE RESPONSE
VIN
+5 VOUT
+AUX
–AUX
Typical Performance Curves: 25°C Tc, 28 VDC Vin, 100% load, free run, unless otherwise specified.
Crane Aerospace & Electronics Power Solutions
MTR (40) Single, Dual and Triple DC-DC Converters
28 (16-40) VOLT INPUT – 30 WATT
www.craneae.com/interpoint Page 18 of 26
MTR-01 Rev AA - 2013.09.04
10 9 8 7 6
0.000
0.170
(4.32)
1.170
(29.72)
0.000
0.170 (4.32)
0.570 (14.48)
0.970 (24.64)
1.370 (34.80)
1.770 (44.96)
12345
0.040 dia.
(1.02)
0.000
0.25 (6.4)
0.405 max
(10.29)
BOTTOM VIEW CASE F1
Seam Seal
Squared corner and dot
on top of case indicates pin one
Weight 58 grams max.
Case dimensions in inches (mm)
Tolerance ±0.005 (0.13) for three decimal places
±0.01 (0.3) for two decimal places
unless otherwise specified
CAUTION
Heat from reflow or wave soldering may damage the device.
Solder pins individually with heat application not exceeding 300°C for 10 seconds per pin.
Materials
Header Cold Rolled Steel/Nickel/Gold
Cover Kovar/Nickel
Pins #52 alloy/Gold ceramic seal
Gold plating of 50 - 150 microinches included in pin diameter
Seal hole 0.120 ±0.002 (3.05 ± 0.05)
Case F1 MTR T, Rev G, 2013.07.01
Please refer to the numerical dimensions for accuracy.
1.350 max. (34.29)
1.950 max. (49.53)
Figure 37: Case F1 – triple MoDels
Crane Aerospace & Electronics Power Solutions
MTR (40) Single, Dual and Triple DC-DC Converters
28 (16-40) VOLT INPUT – 30 WATT
www.craneae.com/interpoint Page 19 of 26
MTR-01 Rev AA - 2013.09.04
0.155 (3.94)
0.955 (24.26)
0.155 (3.94)
0.955 (24.26)
610
789
Seam Seal
0.000
0.040 dia
(1.02)
0.000
0.000
0.400 max.
(10.16)
0.25 (6.4)
0.245 (6.22)
1.845 (46.86)
2.100 max. (53.34)
1 2
610
BOTTOM VIEW CASE H2
345
789
0.000
0.000
0.245 (6.22)
1.845 (46.86)
2.100 max. (53.34)
1.115 max. (28.32)
1 2
345
0.645 (16.38)
1.045 (26.54)
1.445 (36.70)
0.645 (16.38)
1.045 (26.54)
1.445 (36.70)
Squared corner and dot on top
of case indicate pin one.
Squared corner and dot on top
of case indicate pin one.
Weight 50 gms max.
Case dimensions in inches (mm)
Tolerance ±0.005 (0.13) for three decimal places
±0.01 (0.3) for two decimal places
unless otherwise specified
CAUTION
Heat from reflow or wave soldering may damage the device.
Solder pins individually with heat application not exceeding 300°C for 10 seconds per pin.
Materials
Header Cold Rolled Steel/Nickel/Gold
Cover Kovar/Nickel
Pins #52 alloy/Gold ceramic seal
Gold plating of 50 - 150 microinches included in pin diameter
Seal hole 0.120 ±0.002 (3.05 ± 0.05)
Case H2 MTR SD, Rev J, 2013.07.01
Please refer to the numerical dimensions for accuracy..
1.115 max. (28.32)
DUAL
SINGLE
Figure 38: Case h2 – single anD 883 Dual MoDels
applies to all single MoDels, applies only to 883 Dual MoDels,
see Case h4 For non-883 Dual MoDels
Crane Aerospace & Electronics Power Solutions
MTR (40) Single, Dual and Triple DC-DC Converters
28 (16-40) VOLT INPUT – 30 WATT
www.craneae.com/interpoint Page 20 of 26
MTR-01 Rev AA - 2013.09.04
0.160 (4.06)
0.960 (24.38)
0.655 (16.64)
1.055 (26.80)
1.455 (36.96)
0.000
0.000
0.255 (6.48)
1.855 (47.12)
2.115 max. (53.72)
1.125 max. (28.58)
1 2
610
BOTTOM VIEW CASE H4
345
789
Solder Seal
0.040 dia
(1.02)
0.25 (6.4)
Solder Tip-off
0.000
0.417 max (10.59)
Dot on top of case indicates pin one
Weight 50 grams max.
Case dimensions in inches (mm)
Tolerance ±0.005 (0.13) for three decimal places
±0.01 (0.3) for two decimal places
unless otherwise specified
CAUTION
Heat from reflow or wave soldering may damage the device.
Solder pins individually with heat application not exceeding 300°C for 10 seconds per pin.
Materials
Header Cold Rolled Steel/Nickel/Tin
Cover Cold Rolled Steel/Nickel/Tin
Pins #52 alloy, compression glass seal
Gold plating of 50 - 150 microinches included in pin diameter
Seal hole 0.092 ±0.002 (2.34 ± 0.05)
Case H4 MTR D non-883, Rev F - 2013.07.01
Please refer to the numerical dimensions for accuracy.
Figure 39: Case h4 – Dual MoDels - non 883
Crane Aerospace & Electronics Power Solutions
MTR (40) Single, Dual and Triple DC-DC Converters
28 (16-40) VOLT INPUT – 30 WATT
www.craneae.com/interpoint Page 21 of 26
MTR-01 Rev AA - 2013.09.04
Figure 40: Case J1 – triple MoDels
0.040 dia.
(1.02)
0.000
0.25 (6.4)
0.405 max
(10.29)
Seam Seal
10 9 8 7 6
0.000
0.170 (4.32)
0.210 (5.33)
0.570 (14.48)
0.970 (24.64)
1.370 (34.80)
1.770 (44.96)
2.150 (54.61)
12345
0.170
(4.32)
0.000
1.170 (29.72)
0.670
(17.02)
Flanged cases: Designator "F" required in Case Option position of model number.
BOTTOM VIEW CASE J1
Sharp corner and dot on top
of case indicate pin one.
Flange thickness: 0.060 (1.52)
1.350 max. (34.29)
Weight 62 gms max.
Case dimensions in inches (mm)
Tolerance ±0.005 (0.13) for three decimal places
±0.01 (0.3) for two decimal places
unless otherwise specified
CAUTION
Heat from reflow or wave soldering may damage the device. Solder pins
individually with heat application not exceeding 300°C for 10 seconds per pin.
Materials
Header Cold Rolled Steel/Nickel/Gold
Cover Kovar/Nickel
Pins #52 alloy/Gold ceramic seal
Gold plating of 50 - 150 microinches included in pin diameter
Seal Hole: 0.120 ±0.002 (3.04 ±0.05)
Case J1 MTR T F, Rev J, 2013.07.01
Please refer to the numerical dimensions for accuracy.
2 x R 0.170 (4.32)
(2.720 max (69.09))
2 x Dia 0.162 ±0.002
(4.11 ±0.05)
Crane Aerospace & Electronics Power Solutions
MTR (40) Single, Dual and Triple DC-DC Converters
28 (16-40) VOLT INPUT – 30 WATT
www.craneae.com/interpoint Page 22 of 26
MTR-01 Rev AA - 2013.09.04
Figure 41: Case k3 – single anD Dual 883 MoDels
610
789
0.040 dia
(1.02)
0.000
0.400 max.
(10.16)
0.25 (6.4)
0.155 (3.94)
0.955 (24.26)
Seam Seal
0.245
(6.22)
– 0.230
(5.84)
1.845
(46.86)
2.320
(58.93)
0.230
(5.84)
2.320
(58.93)
1 2
610
Flanged cases: Designator “F” required in Case Option position of model number.
BOTTOM VIEW CASE K3
345
789
(0.000)
0.245
(6.22)
1.845
(46.86)
(2.090
(53.09))
(0.000)
(2.090
(53.09))
1 2
345
0.645
(16.38)
1.045
(26.54)
1.445
(36.70)
0.645
(16.38)
1.045
(26.54)
1.445
(36.70)
0.000
1.115 max. (28.32)
0.555 (14.1)
Dot on top of case indicates pin one
Dot on top of case indicates pin one
SINGLE
DUAL
Flange thickness: 0.060 (1.52)
Weight 52 grams max.
Case dimensions in inches (mm)
Tolerance ±0.005 (0.13) for three decimal places
±0.01 (0.3) for two decimal places
unless otherwise specified
CAUTION
Heat from reflow or wave soldering may damage the device. Solder pins
individually with heat application not exceeding 300°C for 10 seconds per pin.
Materials
Header Cold Rolled Steel/Nickel/Gold
Cover Kovar/Nickel
Pins #52 alloy/Gold, ceramic seal
Gold plating of 50 - 150 microinches included in pin diameter
Seal hole 0.120 ±0.002 (3.04 ±0.05)
Case K3 MTR SD F, Rev J, 2013.07.01
Please refer to the numerical dimensions for accuracy.
2 x R 0.170 (4.32)
2 x Dia 0.162 ±0.002
(4.11 ±0.05)
2 x R 0.170 (4.32)
2 x Dia 0.162 ±0.002
(4.11 ±0.05)
(2.910 max (73.91))
applies to all single MoDels, applies only to 883 Dual MoDels
Crane Aerospace & Electronics Power Solutions
MTR (40) Single, Dual and Triple DC-DC Converters
28 (16-40) VOLT INPUT – 30 WATT
www.craneae.com/interpoint Page 23 of 26
MTR-01 Rev AA - 2013.09.04
Figure 42: Case k5 – Dual MoDels - non 883
0.155 (3.94)
0.955 (24.26)
0.000
0.25 (6.4)
0.040 dia
(1.02)
Solder Seal
Solder Tip-off
0.417 max (10.59)
0.000
0.000
0.245 (6.22)
– 0.230 (5.84)
1.845 (46.86)
2.320 (58.93)
1.120 max. (28.45)
1 2
610
Flanged cases: Designator “F” required in Case Option position of model number.
BOTTOM VIEW CASE K5
345
789
0.645 (16.38)
1.045 (26.54)
1.445 (36.70)
0.555 (14.1)
Squared corner and dot on top
of case indicate pin one.
Weight 52 grams max.
Case dimensions in inches (mm)
Tolerance ±0.005 (0.13) for three decimal places
±0.01 (0.3) for two decimal places
unless otherwise specified
CAUTION
Heat from reflow or wave soldering may damage the device.
Solder pins individually with heat application not exceeding 300°C for 10 seconds per pin.
Materials
Header Cold Rolled Steel/Nickel/Tin
Cover Cold Rolled Steel/Nickel/Tin
Pins #52 alloy, compression glass seal
Gold plating of 50 - 150 microinches included in pin diameter
Seal hole 0.092 ±0.002 (2.34 ± 0.05)
Case K3 MTR D F non-883, Rev H, 2013.07.01
Please refer to the numerical dimensions for accuracy.
Flange thickness: 0.060 (1.52)
2 x R 0.170 (4.32)
2 x Dia 0.162 ±0.002
(4.11 ±0.05)
(2.910 max (73.91))
MTR Series Dual
(Standard and ES)
Crane Aerospace & Electronics Power Solutions
MTR (40) Single, Dual and Triple DC-DC Converters
28 (16-40) VOLT INPUT – 30 WATT
www.craneae.com/interpoint Page 24 of 26
MTR-01 Rev AA - 2013.09.04
table 12: eleMent evaluation
Crane Aerospace & Electronics Power Solutions
MTR (40) Single, Dual and Triple DC-DC Converters
28 (16-40) VOLT INPUT – 30 WATT
www.craneae.com/interpoint Page 25 of 26
MTR-01 Rev AA - 2013.09.04
table 5: eleMent evaluation–high reliability stanDarD, /es anD /883 (Class h)
StanDarD anD /eS (nOn-Qml) anD /883 (ClaSS h, Qml)
mil-prf-38534 element eValuatiOn
nOn-Qml
1 Qml
COmpOnent-leVel teSt perfOrmeD StanDarD anD /eS
ClaSS h
/883
m/S 2 m/S 2 p 3
Element Electrical n n n
Visual n n
Internal Visual n
Final Electrical n n
Wire Bond Evaluation n n
Notes:
1. Standard and /ES non-QML products may not meet all of the requirements of MIL-PRF-38534.
2. M/S = Active components (Microcircuit and Semiconductor Die)
3. P = Passive components, Class H element evaluation. Not applicable to Standard and /ES
element evaluation.
table 13: environMental sCreening
Crane Aerospace & Electronics Power Solutions
MTR (40) Single, Dual and Triple DC-DC Converters
MTR (40) Single, Dual and Triple, MTR-01 Rev AA - 2013.09.04 This revision supersedes all previous releases. All technical information is believed to be
accurate, but no responsibility is assumed for errors or omissions. Crane Electronics, Inc. reserves the right to make changes in products or specifications
without notice. Interpoint and MTR Series are trademarks of Crane Electronics, Inc. Copyright © 1999 - 2013 Crane Electronics, Inc. All rights reserved.
www.craneae.com/interpoint
Page 26 of 26
28 (16-40) VOLT INPUT – 30 WATT
Table is for reference only. See individual Series' datasheets for specific screening.
table 6: environMental sCreening–high reliability stanDarD, /es anD /883 (Class h)
StanDarD anD /eS (nOn-Qml) anD /883 (ClaSS h, Qml)
mil-prf-38534 enVirOnmental SCreening
nOn-Qml
1 Qml
teSt perfOrmeD StanDarD
/eS
ClaSS h
/883
Pre-cap Inspection, Method 2017, 2032 n n n
Temperature Cycle (10 times)
Method 1010, Cond. C, -65°C to +150°C, ambient n
Method 1010, Cond. B, -55°C to +125°C, ambient n
Constant Acceleration
Method 2001, 3000 g n
Method 2001, 500 g n
Burn-in Method 1015, +125°C case, typical 2
96 hours n
160 hours n
Final Electrical Test, MIL-PRF-38534, Group A,
Subgroups 1 through 6, -55°C, +25°C, +125°C case n
Subgroups 1 and 4, +25°C case n n n
Hermeticity Test
Gross Leak, Method 1014, Cond. C n n
Fine Leak, Method 1014, Cond. A n n
Gross Leak, Dip n
Final visual inspection, Method 2009 n n n
Test methods are referenced to MIL-STD-883 as determined by MIL-PRF-38534.
Notes:
1. Standard and /ES, non-QML products, may not meet all of the requirements of MIL-PRF-38534.
2. Burn-in temperature designed to bring the case temperature to +125°C minimum. Burn-in is a powered test.
