EMI Input Filter & Protection Module for Military Applications

This module is installed at the power input of electronic systems designed for operation in military environments. It provides bidirectional EMI filtering, preventing conducted noise from both entering and leaving the equipment, while also protecting the system against reverse polarity and short-circuit conditions.

Designed for military vehicles, tactical UAVs, robotic platforms, and compact defense electronics, the module complies with the demanding requirements of MIL-STD-461 for conducted EMI performance.

Key Features

• Dual-stage Pi (π) EMI filter with dual Common-Mode Chokes for superior conducted EMI attenuation.

• 45 dB Common-Mode (CM) attenuation @ 1 MHz (50 Ω)

• 75 dB Differential-Mode (DM) attenuation @ 1 MHz (50 Ω)

• Operating current: 7 A

• Input voltage: Up to 40 VDC, suitable for 12 V and 28 V systems

• Optional version available for up to 60 VDC systems

• Ultra-low DC insertion loss with efficiency of up to 98%

• Very low power dissipation and minimal self-heating

• Output voltage essentially equal to input voltage, with a maximum voltage drop of 0.2 V

• Integrated Ideal Diode for reverse polarity protection

• Integrated 10 A fuse for protection against load short circuits and input fault conditions

• Bidirectional TVS diode for protection against short-duration voltage transients (not intended for MIL-STD-1275 load dump protection)

• Available with Molex connector or direct PCB solder terminals for reduced installation height

• Compact dimensions: 29 × 19 mm

• Height: 8 mm (direct solder version)

Environmental Specifications

• Ruggedized construction for harsh operating environments

• Designed for MIL-STD-810 environmental conditions

• Industrial/military temperature range: –40°C to +85°C

Optional Features

• Conformal coating

• Additional mechanical ruggedization and environmental hardening