Defence EMI filter modules for MIL-STD-461 compliance

Cincon, supplied by Relec Electronics, has just bolstered its defence-grade power portfolio with the release of its MF10 and MF20 EMI filter modules, offering engineers an elegant solution to a not-so-elegant problem: electromagnetic compatibility.

These new modules are designed specifically to help designers meet MIL-STD-461 (F & G) requirements, critical for any equipment deployed in harsh military or aerospace environments.

Why MIL-STD-461 matters

If you’re in the defence space, you’ll know that electromagnetic compatibility (EMC) is essential. MIL-STD-461 defines the standards for:

  • CE (conducted emissions) – what your equipment puts out on the power lines
  • CS (conducted susceptibility) – what it can take in from noisy power without failure
  • RE (radiated emissions) – the electromagnetic field it emits into the air
  • RS (radiated susceptibility) – the device’s sensitivity to external radiated electromagnetic interference

In short: it’s about ensuring everything works together, in any conditions or location, without frying each other’s circuits.

The new MF modules: plug, play, pass

Cincon’s MF10D075P and MF20D075P are designed to pair with their eighth-brick and quarter-brick DC/DC converters respectively, including models such as:

  • CQB50W8, CEB100W, CQB150W
  • ECLB60W, ECLB75W

This plug-and-play approach reduces the need for bulky discrete filtering components (inductors, capacitors, beads), saving development time on EMC compliance while keeping your project compact, cost-effective, and compliant.

Test case: MIL-STD-461, conquered

To demonstrate this, Cincon tested the MF series with all of the above bricks to CE102 of the MIL-STD-461 specification, achieving a pass for all models using their reference circuit and PCB design.

Built for defence

These modules are ready for the extremes, with:

  • Operating temperatures from -55°C to +110°C
  • Industry standard heatsink and mounting options
  • Shock and vibration compliance to MIL-STD 810F

Perfect for avionics, ground vehicles, and any application where electromagnetic chaos is the norm.

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