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Teledyne Relays Displays Shock and Vibration Capabilities ½ Crystal Can Relays (255/257 Series)

A major Aerospace company has recently evaluated and tested Teledyne Relays' ½ Crystal Can Relay (255/257 series) and confirmed that the relays are capable of withstanding sinusoidal vibration levels up to 95 G's, up to 2200 Hz. The sinusoidal vibration test results show that Teledyne Relays' ½ Crystal Can 255/257 relays exhibit resonant frequency characteristics in the range of 4500 Hz to 6500 Hz up to 70 G's amplitude, far above the typical frequency range of 2000 Hz and 3000 Hz at 30 G's, in typical aerospace applications. The relays were also subjected to mechanical shock tests. The mechanical shock test indicate that Teledyne Relays' ½ Crystal Can 255/257 relays are capable of withstanding 484 G's @ 0.5 millisecond ½ sine shock pulses without any contact chattering detected. Additionally, the relays were tested up to and survived 930g's @ 0.5 millisecond ½ sine shock pulses. There is the possibility of contact chattering condition at these levels. However, contact transfer conditions were not observed in any of the test conditions.

The Teledyne Relays' ½ Crystal Can Relays (255/257 series) are ideal for ruggedized military, aerospace and space flight applications in which stringent environmental conditions are expected. The ½ Crystal Can Relays are capable of hot switching resistive contact load up to 2 Amps @ 28Vdc and are hermetically sealed.

The Teledyne Relays' ½ Crystal Can Relays (255/257 series) are available for use as commercial, JAN-qualified, space flight products.


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