3 A high reliability EMI filter

The EFJ2803 is a high reliability EMI filter with 3 Amps throughput current and input voltage range of 0 – 50 VDC. It utilizes all ceramic capacitors, surface mount magnetics and ultrasonically bonded aluminum wires to provide reliable operation at all operating temperatures while surviving very high G forces. 

This filter has been designed to reduce the input line reflected ripple current to within the limit of MIL-STD-461C, CE03. The stand-alone filter's internal components are all passive devices and selected to operate from input voltages up to and including the peak transient voltage. The filter therefore does not require or utilize transient supression circuitry and is compatible with the transient specification of a MIL-STD-704 type power bus. When connected to an output device, the output device must be able to operate from compatible voltages. The filter will attenuate spikes, but the duration and magnitude of the spike must be within the operating range of the filter and the device connected to it.

The 8-pin package is hermetically sealed and is DC isolated from the internal circuits. Heat sinking is recommended for full power operation at elevated ambient temperatures.

Source: M.S. Kennedy