Model: 23727

23727

MOAF EMI Filter

Mil-Std 461D,E,F,G CE102

Features

Fully hermetic package

Low loss design for maximum efficiency and low power dissipation.

For MIL-STD 704/1275 applications

Specifications

Input: 270 VDC

Input Range: 182 VDC to 335 VDC

Rated Current: 25 A

Rated Power Dissipation (Pd): 10 W

Storage Temp: -55 °C to 150 °C

Shock: 50 G's

Acceleration: 500 G's

Vibration: 30 G's

Weight: 220 gms typical

Environment

Grade I:

Full Output Power at T_case = 85°C

Minimum Output Power at T_case = -55°C

Linearly derates to zero at T_case = 115

TID up to kRad(Si)
No SEE up to 60MeV*cm²/mg

Grade M:

Full Output Power at T_case = 85°C

Minimum Output Power at T_case = -55°C

Linearly derates to zero at T_case = 115

TID up to kRad(Si)
No SEE up to 60MeV*cm²/mg

Grade E:

Full Output Power at T_case = 125°C

Minimum Output Power at T_case = -55°C

Linearly derates to zero at T_case = 135

TID up to kRad(Si)
No SEE up to 60MeV*cm²/mg

Additional Notes

MDI model *3727 MOAF (Mother Of All Filters) series meets the latest MIL-STD-461D,E,F,G CE102 test method requirements when used with most unfiltered DC-DC Converters.

MDI offers a compact standalone, low attenuation low I2R loss solution that permits users to meet newer MIL-STD-461 D,E,F,G CE102 limits with legacy converters having built-in 461C CE03 filters.

Particularly useful in power systems where multiple DC-DC converters are paralleled in high load current and/or N+1 redundant applications.

The *3727 MOAF’s sized to accommodate a brad range of popular satellite, ISS/Orion, airframe and vehicle input voltage buses, incorporate two common mode stages and three low attenuation, low resonance differential mode stages.

To resulting design achieves the necessary attenuati0n for CE102 compliance while minimizing the possibility of excessive input filter impedance mismatch than might otherwise results in DC-DC converter loop instability. Further the design avoids use of multi-turn inductors, greatly reducing the internal I2R copper looses, improving efficiency and reducing power dissipation.

A single MOAF can serve multiple DC-DC converters up to the published rated maximum current. Please see our application notes for insertion loss curves and full technical details.

Single Output Devices

Toggle Columns: Parameter - Conditions

Parameters	Conditions	23727 (10W) MIN	23727 (10W) TYP	23727 (10W) MAX
Input Voltage, VDC Nominal	—	—	270	—
Input Range VDC	—	182	—	335
Rated Current (Amps)	—	—	—	25
Rated Power Dissapation (Pd) Watts	—	—	—	10

Pinout Table

3727
Pin-1: Input +
Pin-2: Input +
Pin-3: Input +
Pin-4: Input Return
Pin-5: Input Return
Pin-6: Input Return
Pin-7: Output Return
Pin-8: Output Return
Pin-9: Output Return
Pin-10: Output +
Pin-11: Output +
Pin-12: Output +

Case Styles

Part Number Designator	Case Style	Pin Count	Mounting	Step File
LF	Case Style 7	12	Solder Sealed Flanged PCB Mount	Download
ZF	Case Style 9	12	Seam Weld Flanged Chassis Mount	Download