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FEATURES
-55 to +125C operation 16 to 40 VDC input Fully Isolated Magnetic feedback Fixed frequency Topology - Single Ended Forward 50 V for up to 50 ms transient protection * Inhibit and synchronization functions * Indefinite short circuit protection * Up to 84% efficiency, 21 watts/in3 * * * * * * *
DC/DC CONVERTERS 28 VOLT INPUT
MHD SERIES 20 WATT
MODELS
VDC OUTPUT SINGLE 5 12 15 18 DUAL 5 12 15
Size (max.): Non-flanged, case H2 2.125 x 1.125 x 0.400 inches (53.98 x 28.58 x 10.16 mm) Flanged case, K3 2.910 x 1.125 x 0.400 inches (73.91 x 28.58 x 10.16 mm) See Section B8, cases H2 and K3 for dimensions. Weight: 52 grams max., flanged 55 grams max. Screening: Standard, ES, or 883 (Class H). See Section C2 for screening options, see Section A5 for ordering information.
DESCRIPTION
The MHD SeriesTM of DC/DC converters offers up to 20 watts of output power over the full military temperature range with up to 84% efficiency. Thick-film hybrid techniques provide military/aerospace reliability levels and optimum miniaturization. The MHD Series power density rating is up to 21 watts/in3. MHD converters are packaged in hermetically sealed metal cases, making them ideal for use in military, aerospace and other high reliability applications. Units are available with standard screening, "ES" screening, or fully compliant SMD versions (see Section C2 for screening conditions).
SYNCHRONIZATION
The MHD offers a synchronization feature that allows the designer to match the switching frequency of the converter to the frequency of the system clock. In free-run (unsynchronized) mode, the MHD unit switches at 625 kHz (nominal). In sync mode, the converter will run at any frequency between 500 kHz and 675 kHz. The sync control operates with a quasi-TTL signal at any duty cycle between 40% and 60%. 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. The sync pin should be connected to input common pin when not in use.
CONVERTER DESIGN
The MHD converters are constant frequency, pulse-width modulated switching regulators which use a quasi-square wave, single ended, forward converter design. Tight load regulation (5 mV typical) 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 and shunt regulators. 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 115% of the maximum rated output current. MHD converters are provided with internal filtering capacitors that help reduce the need for external components in normal operation. For systems that require compliance with MIL-STD-461C's CE03 standard, Interpoint offers filter/transient suppression modules (including the FMC-461, FMD-461 and FM-704A series filters) which will result in compliance. Contact your Interpoint representative for further details.
WIDE VOLTAGE RANGE
The MHD converters are designed to provide full power operation over a full 16 to 40 VDC voltage range. Operation below 16 volts, including MIL-STD-704E emergency power conditions is possible with derated power. Refer to the low line dropout graph (Figure 15) for details.
IMPROVED DYNAMIC RESPONSE
The MHD feed-forward compensation system provides excellent dynamic response and noise rejection. Audio rejection is typically 50 dB. The min. to maximum step line transient response is typically less than 4%.
INHIBIT FUNCTION
MHD converters provide an inhibit terminal that can be used to disable internal switching, resulting in no output and very low quiescent input current. The converter is inhibited when a TTL compatible low (0.8 V) is applied to the inhibit pin. The unit is enabled when the pin, which is internally connected to a pull-up resistor, is left unconnected or is connected to an open-collector gate. The open circuit output voltage associated with the inhibit pin is 9 to 11 V. In the inhibit mode, a maximum of 8 mA must be sunk from the inhibit pin.
B2-47
MHD SERIES 20 WATT
ABSOLUTE MAXIMUM RATINGS
Input Voltage * 16 to 40 V Output Power * 15 to 20 watts depending on model Lead Soldering Temperature (10 sec per lead) * 300C Storage Temperature Range (Case) * -65C to +150C
DC/DC CONVERTERS
SYNC AND INHIBIT
Sync (500 to 675 kHz) * Duty cycle 40% min, 60% max * Logic low 0.8 V max, 0.0 V min * Logic high 4.0 V min, 10 V max * Referenced to input common * If not used, connect to input common Inhibit: TTL Open Collector * Logic low (output disabled) Logic low voltage 0.8 V Inhibit pin current 8.0 mA max * Referenced to input common * Logic high (output enabled) Open collector
TYPICAL CHARACTERISTICS
Output Voltage Temperature Coefficient * 100 ppm/C typical Input to Output Capacitance * 50 pF typical Current Limit * 115% of full load typical Isolation * 100 megohm minimum at 500 V Audio Rejection * 50 dB typical Conversion Frequency * Free run mode 625 kHz typical 550 kHz. min, 650 kHz max * External sync range 500 to 675 kHz Inhibit Pin Voltage (unit enabled) * 9 to 11 V
RECOMMENDED OPERATING CONDITIONS
Input Voltage Range * 16 to 40 VDC continuous * 50 V for up to 50 msec transient Case Operating Temperature (Tc) * -55C to +125C Full power * -55C to +135C Absolute Derating Output Power/Current * Linearly from 100% at 125C to 0% at 135 C
Electrical Characteristics:25C Tc, 28 VDC Vin, 100% load, free run, unless otherwise specified.
SINGLE OUTPUT MODELS PARAMETER OUTPUT VOLTAGE OUTPUT CURRENT1 OUTPUT POWER1 OUTPUT RIPPLE VOLTAGE LINE REGULATION2 LOAD REGULATION INPUT VOLTAGE1 NO LOAD TO FULL INPUT CURRENT CONDITION VIN = 16 to 40 VDC VIN = 16 to 40 VDC 10 kHz - 2 MHz Tc = -55C TO +125C Vin = 16 to 40 VDC Tc = -55C TO +125C NO LOAD TO FULL Tc = -55C TO +125C CONTINUOUS TRANSIENT 50 ms NO LOAD1 FULL LOAD INHIBITED1 10 kHz - 10 MHz Tc = -55C TO +125C SHORT CIRCUIT POWER DISSIPATION RECOVERY1, 3 50% - 100% - 50% 10% - 100% 100% - 10% 50% - 100% - 50% 10% - 100% 100% - 10% 16 - 40 - 16 VDC TRANSIENT5 RECOVERY4 START-UP1 DELAY OVERSHOOT FULL LOAD NO LOAD MHD2805S MIN 4.95 0 0 -- -- -- -- -- -- 16 -- -- -- -- -- 76 -- -- -- -- -- -- -- -- -- -- -- -- -- TYP MAX 5.00 5.05 -- 3 -- 35 50 10 15 5 15 28 -- 35 0.70 7 20 78 -- 1.4 200 -400 +350 60 60 200 15 50 90 50 50 50 50 40 50 75 -- 8 50 -- 10 5 300 -600 +600 200 600 600 MHD2812S MIN TYP MAX 11.88 12.00 12.12 0 -- 1.67 0 -- -- -- -- -- -- 16 -- -- -- -- -- 80 -- -- -- -- -- -- -- -- -- -- -- -- -- -- 25 40 10 15 5 15 28 -- 35 0.87 7 20 83 -- 1.4 250 -600 +500 60 150 250 20 40 90 50 50 50 50 40 50 75 -- 8 50 -- 10 5 400 -1000 +750 200 300 500 MHD2815S MIN TYP MAX 14.85 15.00 15.15 0 -- 1.33 0 -- -- -- -- -- -- 16 -- -- -- -- -- 81 -- -- -- -- -- -- -- -- -- -- -- -- -- -- 25 40 10 15 5 15 28 -- 35 0.85 7 20 84 -- 1.4 350 -800 +600 60 250 250 20 40 90 50 50 50 50 40 50 75 -- 8 50 -- 10 5 500 -1200 +1000 200 500 500 MHD2818S MIN TYP MAX 17.82 18.00 18.18 0 -- 1.11 0 -- -- -- -- -- -- 16 -- -- -- -- -- 81 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 28 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 20 40 90 50 50 50 50 40 50 75 -- 8 50 -- 10 5 600 -- -- 200 -- -- 600 300 5 180 -- UNITS VDC A W mV p mV mV VDC V mA A mA mA p-p % A ms mV pk
INPUT RIPPLE CURRENT EFFICIENCY LOAD FAULT3 SHORT CIRCUIT TO FULL LOAD STEP LOAD RESP. TRANSIENT
RECOVERY4 STEP LINE RESP.
s
200 300 -- 300 1.4 0 50 5 50 250
400 500 -- 300 1.4 0 120 5 120 600
500 600 -- 300 1.4 0 150 5 150 750
mV pk s ms
mV pk
Notes 1. Tc = -55C to +125C 2. Operation is limited below 16V (see Figure 15). 3. Indefinite short circuit protection not guaranteed above 125C case.
4. Recovery time is measured from application of the transient to point at which Vout is within 1% of final value. 5. Transition time 10 s.
B2-48
DC/DC CONVERTERS
DUAL OUTPUT MODELS PARAMETER CONDITIONS OUTPUT VOLTAGE1 OUTPUT CURRENT1,2 OUTPUT POWER1,2 OUTPUT RIPPLE VOLTAGE +/- VOUT LINE REGULATION3 VIN = 16 TO 40 VDC LOAD REGULATION NO LOAD TO FULL CROSS REGULATION EFFECT ON -VOUT INPUT VOLTAGE1 NO LOAD TO FULL INPUT CURRENT +VOUT -VOUT VIN = 16 TO 40 VDC VIN = 16 TO 40 VDC 10 kHz - 2 MHz Tc = -55C TO +125C Tc = -55C TO +125C Tc = -55C TO +125C SEE NOTE 4 SEE NOTE5 CONTINUOUS TRANSIENT 50 ms NO LOAD1 FULL LOAD INHIBITED1 10 kHz - 10 MHz POWER DISSIPATION SHORT CIRCUIT RECOVERY1, 7 TRANSIENT 50 - 100 - 50% 10 - 100 -10% RECOVERY7 50 - 100 - 50% 10 - 100 - 10% 16 - 40 - 16 VIN TRANSIENT8 RECOVERY7 DELAY OVERSHOOT NO LOAD +VOUT -VOUT +VOUT -VOUT MHD2805D MIN TYP MAX 4.95 5.00 5.05 4.925 0.30 0 -- -- -- -- -- -- -- -- 16 0 -- -- -- -- 76 -- -- -- -- -- -- -- -- -- -- -- 5.00 -- -- 20 40 10 50 5 25 7 4 28 -- 35 0.70 7 15 78 -- 1.4 200 400 100 400 200 -- 1.4 0 50 5.075 3.0 15 50 80 50 100 50 100 12 6 40 50 75 -- 8 50 -- 10 5.0 300 600 200 600 400 300 5 50 250 MHD2812D MIN TYP MAX 11.88 12.00 12.12 11.82 0.13 0 -- -- -- -- -- -- -- -- 16 0 -- -- -- -- 79 -- -- -- -- -- -- -- -- -- -- -- 12.00 -- -- 30 40 10 50 15 30 4 4 28 -- 50 0.88 7 20 81 -- 1.4 150 200 100 100 200 -- 1.4 0 120 12.18 1.25 15 80 120 50 150 50 150 8.3 6 40 50 75 -- 8 50 -- 10 5.0 300 400 200 200 400 300 5 120 600
MHD SERIES 20 WATT
MHD2815D MIN TYP MAX 14.85 15.00 15.15 14.77 15.00 0.10 0 -- -- -- -- -- -- -- -- 16 0 -- -- -- -- 80 -- -- -- -- -- -- -- -- -- -- -- -- -- 25 40 10 50 15 30 3 4 28 -- 50 0.86 7 20 83 -- 1.4 200 300 100 200 400 -- 1.4 0 150 15.23 1.00 15 80 120 50 180 50 180 8 6 40 50 75 -- 8 50 -- 10 5.0 400 500 200 250 500 300 5 150 750 mV % VDC V mA A mA mA p-p % W ms A W mV p-p mV UNITS VDC
Electrical Characteristics: 25C Tc, 28 VDC Vin, 100% load, free run, unless otherwise specified.
INPUT RIPPLE CURRENT1 EFFICIENCY LOAD FAULT6
STEP LOAD RESPONSE VOUT
mV pk
s
STEP LINE RESPONSE VOUT START-UP
mV pk s ms mV pk
Notes 1. Tc = -55C to +125C. 2. Up to 90% of the total output current/power is available from either output The minimum load on the positive output is 10% of full load. 3. Operation is limited below 16 V (see Figure 15). 4. Effect on the negative output under the following conditions: +Pout 20% to 80%; -Pout 80% to 20% 5. Effect on the negative output under the following conditions: +Pout 50%; -Pout 10% to 50%
6. Indefinite short circuit protection not guaranteed above 125C case. 7. Recovery time is measured from application of the transient to point at which Vout is within 1% of final value. 8. Transition time 10 s.
B2-49
MHD SERIES 20 WATT
Pin 1 2 3 4 5 6 7 8 9 10 Single Output Positive Input Inhibit No Connection Output Common Positive Output Case Ground Case Ground Case Ground Sync Input Input Common
DC/DC CONVERTERS
PIN OUT Dual Output Positive Input Inhibit Positive Output Output Common Negative Output Case Ground Case Ground Case Ground Sync Input Input Common
Dot on top of cover indicates pin one.
1
2
3
4
5
BOTTOM VIEW MHD FLANGED AND NON-FLANGED
10 9 8 7 6
Dotted line outlines flanged package option.
See Section B8, cases H2 and K3 for dimensions.
FIGURE 1: PIN OUT
MODEL NUMBERING KEY
MHD Base Model Input Voltage Output Voltage Number of Outputs (S = single, D = dual) Case Option (Non-flanged case has no designator in this position) Screening (Standard screening has no designator in this position.) 28 12 S F / 883
SMD NUMBERS
STANDARD MICROCIRCUIT DRAWING (SMD) NON-FLANGED CASE 5962-9465501HXC 5962-9465601HXC 5962-9465701HXC 5962-9465801HXC 5962-9465901HXC 5962-9466001HXC 5962-9466101HXC FLANGED CASE 5962-9465501HZC 5962-9465601HZC 5962-9465701HZC 5962-9465801HZC 5962-9465901HZC 5962-9466001HZC 5962-9466101HZC MHD SIMILAR MODEL NUMBER
MHD2805S/883 MHD2812S/883 MHD2815S/883 MHD2818S/883 MHD2805D/883 MHD2812D/883 MHD2815D/883
MHD2805SF/883 MHD2812SF/883 MHD2815SF/883 MHD2818SF/883 MHD2805DF/883 MHD2812DF/883 MHD2815DF/883
For exact specifications for an SMD product, refer to the SMD drawing. See Section A3, SMDs, for more information.
B2-50
DC/DC CONVERTERS
85 80 85 80 16V 28V 87 82 16V 28V 40V 72 67 62
MHD SERIES 20 WATT
Typical Performance Curves: 25C Tc , 28 VDC Vin, 100% load, free run, unless otherwise specified.
Efficiency (%)
Efficiency (%)
75 28V 70 65 60 40V
75 70
Efficiency (%)
15 20
16V
77
40V 65 60
5
10
15
5
10
5
10
15
20
Output Power (Watts)
Output Power (Watts)
Output Power (Watts)
MHD2805S Efficiency
MHD2812S Efficiency
MHD2815S Efficiency
FIGURE 2
FIGURE 3
FIGURE 4
85 80 16V
90 0 85 16V 80 28V 75 40V 70 65
75 70 65 60
28V 40V
Attenuation (dB)
10 15
Efficiency (%)
Efficiency (%)
20 40 60 80
5
10
15
5
100 0.1
1
10
100
Output Power (Watts)
Output Power (Watts)
Frequency (kHz)
MHD2812D Efficiency
MHD2815D Efficiency
MHD Series Audio Rejection
FIGURE 5
FIGURE 6
FIGURE 7
20 V/div 20 mV/div
15 W to 7.5 W
15 W to 1.5 W
Vin
100 mV/div
200mV/div
7.5 W to 15 W
1.5 W to 15 W
Vout
50s/div 50% to 100% to 50%
50s/div 10% to 100% to 10%
50s/div (16 TO 40V)
MHD2805S Step Load Response
MHD2805S Step Load Response
MHD2805S Step Line Response
FIGURE 8
FIGURE 9
FIGURE 10
B2-51
MHD SERIES 20 WATT
DC/DC CONVERTERS
10 W to 5 W -Pout = 10 W
Typical Performance Curves: 25C Tc , 28 VDC Vin, 100% load, free run, unless otherwise specified.
20 V/div 20 mV/div
5 W to 10 W
20 V/div
Vin +Vout
Vin
1 V/div
Vout
100 mV/div
-Vout
500s/div
50s/div 25% to 50% to 25%
50ms/div 16 TO 40V
MHD2805S Turn On Into No Load
MHD2815D +Vout Step Load Response
MHD2815D Step Line Response
FIGURE 11
FIGURE 12
FIGURE 13
16.0
20 V/div
Vin +Vout
Input Voltage (Volts)
15.5 15.0 14.5 14.0 13.5 13.0 9 12 15
5 V/div
-Vout
200s/div MHD2815D Turn On Into No Load
Output Power (Watts)
Low Line Dropout vs. Load
FIGURE 14
FIGURE 15
B2-52
21222-001-DTS Rev A DQ# 1008 All technical information is believed to be accurate, but no responsibility is assumed for errors or omissions. Interpoint reserves the right to make changes in products or specifications without notice. MHD Series is a trademark of Interpoint. Copyright (c) 1994 - 1999 Interpoint. All rights reserved.
CASES
Dot on top of case indicates pin one
CASE H
CASE H BOTTOM VIEW See Figures 29 - 34 for pin configurations.
1.125 max (28.58)
2.125 max (53.98)
Materials Header Cold Rolled Steel/Nickel/Gold cases H1 and H2 Cold Rolled Steel/Nickel/Tin cases H3, H4, and H5 Cover Kovar/Nickel cases H1 and H2 Cold Rolled Steel/Nickel/Tin cases H3, H4, and H5 Pins #52 alloy ceramic seal case H1 case H2 (except MHV Series Single and Dual) compression glass seal MHV Series Single and Dual case H3, H4, H5 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 300C for 10 seconds per pin.
FIGURE 28: CASE H MAXIMUM DIMENSIONS
BOTTOM VIEW CASE H1 FMC EMI Filter: Screening - Standard, ES, or 883 SFMC EMI Filter: Screening - Space Standard, H, or K
Seam Seal
0.040 dia (1.02) 1.110 (28.19) 0.955 (24.26) 1 0.555 (14.1) 5 0.155 (3.94) 0.000 0.400 max. (10.16) 0.000 0.25 0.03 (6.4 0.8) 0.000 0.245 (6.22) 1.845 (46.86) 2.090 (53.01) 4 2 3
Squared corner and dot on top of case indicate pin one.
FIGURE 29: CASE H1
Note: Although every effort has been made to render the case drawings at actual size, variations in the printing process may cause some distortion. Please refer to the numerical dimensions for accuracy.
B8-17
CASE H
CASES
BOTTOM VIEW CASE H2 MTR Series Single, MHV Series Single and Dual, and MHD Series: Screening - Standard, ES, or 883 MTR Series Dual: Screening - 883 SMTR Series Single and Dual: Screening - Space Standard, H, or K
Bathtub
Platform
1.110 (28.19) 0.955 (24.26) 0.040 dia (1.02) 0.040 dia (1.02)
Seam Seal
Squared corner and dot on top of case indicate pin one.
1
2
3
4
5
MHV Series
All other H2 cases
MHV Series Single and Dual, MHD Series, MTR Series Dual (883), and SMTR Series Dual
10 0.155 (3.94) 0.000 9 8 7 6
0.400 max. (10.16)
0.000
0.400 max. (10.16)
0.000
0.000
0.245 (6.22)
0.645 (16.38)
1.045 (26.54)
1.445 (36.70)
1.845 (46.86) 5 6 1.845 (46.86)
0.25 (6.4)
0.25 (6.4)
Squared corner and dot on top of case indicate pin one.
1.110 (28.19) 0.955 (24.26) 1 2 3 4
MTR Series Single SMTR SeriesSingle
10 0.155 (3.94) 0.000 0.645 (16.38) 1.045 (26.54) 1.445 (36.70) 0.000 0.245 (6.22) 2.090 (53.01) 9 8 7
FIGURE 30: CASE H2
B8-18
2.090 (53.01)
CASE K
CASES
Dot on top of case indicates pin one
CASE K BOTTOM VIEW See Figures 42 - 48 for pin configuration
1.125 max (28.58)
2.910 max (73.91)
Flange Thickness: Cases K1, K2, K3 and MLP Series (K5) 0.060 (1.52) Cases K4, K5 (except MLP Series), K6, K7, and K8 0.067 +0.005/-0.007 (1.70 +0.13/-0.8) Materials Header Case K1 - K3 Cold Rolled Steel/Nickel/Gold Cases K4 - K8 Cold Rolled Steel/Nickel/Tin Cover Case K1 - K3 Kovar/Nickel Case K4 - K8 Cold Rolled Steel/Nickel/Tin Pins #52 alloy (all cases) Case K1, K2, and K3 (except MHV Series Single and Dual) ceramic seal Cases K4 - K8 and MHV Series Single and Dual (K3) compression glass seal Case dimensions in inches (mm) Tolerance 0.005 (0.13) for three decimal places 0.01 (0.2) 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 300C for 10 seconds per pin.
FIGURE 41: CASE K MAXIMUM DIMENSIONS
B8-26
CASE K
CASES
BOTTOM VIEW CASE K3 Flanged cases: Designator required in Case Option position of model number. MTR Series Single, MHV Series Single and Dual, MHD Series: Screening - Standard, ES, or 883 MTR Series Dual: Screening - 883 SMTR Series: Screening - Space Standard, H, or K
Platform
Seam Seal
1.110 (28.19) 0.955 (24.26) 0.040 dia (1.02) 0.555 (14.1)
Dot on top of case indicates pin one
1
2
3
4
5
MHD Series, MTR Series Dual (883), and SMTR Series Dual
10 9 8 7 6
0.155 (3.94) 0.000 - 0.230 (5.84) 0.000 0.245 (6.22) 0.645 (16.38) 1.045 (26.54) 1.445 (36.70) 1.845 (46.86) 0.400 max. (10.16) 0.25 0.03 (6.4 0.8) 2.320 (58.93) 2.320 (58.93) 2.320 (58.93) 0.000
Platform
Seam Seal
1.110 (28.19) 0.955 (24.26) 0.040 dia (1.02) 0.555 (14.1)
Dot on top of case indicates pin one
1
2
3
4
5
MTR Series Single and SMTR Series Single
10 9 8 7 6
0.155 (3.94) 0.000 0.645 (16.38) 1.045 (26.54) 1.445 (36.70) 0.230 (5.84) 0.000 0.245 (6.22) 0.400 max. (10.16) 0.25 0.03 (6.4 0.8) 1.845 (46.86) 5 6 1.845 (46.86) 0.000
Bathtub
Seam Seal
1.110 (28.19) 0.955 (24.26) 0.040 dia (1.02) 0.555 (14.1)
Dot on top of case indicates pin one
1
2
3
4
MHV Series Single and Dual
10 9 8 7
0.155 (3.94) 0.000 0.000 0.245 (6.22) 0.645 (16.38) 1.045 (26.54) 0.400 max. (10.16) 0.25 0.03 (6.4 0.8) 1.445 (36.70) 0.000 0.230 (5.84)
FIGURE 44: CASE K3
B8-28
QA SCREENING 125C PRODUCTS
125C PRODUCTS
TEST (125C Products) PRE-CAP INSPECTION Method 2017, 2032 TEMPERATURE CYCLE (10 times) Method 1010, Cond. C, -65C to 150C Method 1010, Cond. B, -55C to 125C CONSTANT ACCELERATION Method 2001, 3000 g Method 2001, 500 g BURN-IN Method 1015, 160 hours at 125C 96 hours at 125C case (typical) FINAL ELECTRICAL TEST MIL-PRF-38534, Group A Subgroups 1 through 6: -55C, +25C, +125C Subgroups 1 and 4: +25C case HERMETICITY TESTING Fine Leak, Method 1014, Cond. A Gross Leak, Method 1014, Cond. C Gross Leak, Dip (1 x 10-3) FINAL VISUAL INSPECTION Method 2009 STANDARD /ES /883 (Class H)* yes yes yes
no no
no yes
yes no
no no
no yes
yes no
no no
no yes
yes no
no yes
no yes
yes no
no no yes
yes yes no
yes yes no
yes
yes
yes
Test methods are referenced to MIL-STD-883 as determined by MIL-PRF-38534. *883 products are built with element evaluated components and are 100% tested and guaranteed over the full military temperature range of -55C to +125C. Applies to the following products MOR Series MHD Series MFLHP Series MHV Series MFL Series MHF+ Series MHP Series MHF Series** MTR Series MGA Series MQO Series** MSA Series MGH Series MCH Series FM-704A EMI Filter FMD**/FME EMI Filter FMC EMI Filter FMH EMI Filter FMGA EMI Filter FMSA EMI Filter HUM Modules** LCM Modules** LIM Modules
**MFLHP Series, MQO Series, MHF Series, FMD EMI Filters, Hum Modules, and LCM Modules do not offer `883" screening.
C2-10

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