Recently Instec, LLC has manufactured and upscreened an EMI feed-through filter that meets the US Department of Defense specification MIL-PRF-28861.
This filter, Instec640-102CN, from the company’s 640 Series is a bolt style, resin sealed, and C-circuit filter that will be “used for a US government space program where it will help suppress electromagnetic interference” according to Instec.
Instec adds that performance includes “Capacitance of 1000 pF minimum, DC Voltage Rating of 100 V and Current Rating of 5 A DC. Typical Insertion Loss is 8 dB at 10 MHz, 25 dB at 100 MHz and 40 dB at both 1 GHz and 10 GHz. The Operating Temperature Range is -55°C to +125°C. This part is thread type 8-32 and consists of a silver-plated brass case and silver-plated copper nail head lead.”