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PX-421 Crystal Oscillator (XO)
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The PX–421 is a precision crystal oscillator that achieves low phase noise performance in low voltage applications over the military temperature range of −55°C to +125°C. Additionally, this precision XO has an extended frequency range (10kHz to 125MHz) and an option for MIL–PRF–55310 "B" level screening making it ideal for ruggedized environmental applications.


  • Frequency range: 10 kHz to 125 MHz
  • Supply: 1.8, 2.5, 3.3 or 5 V
  • Output: ACMOS, TTL
  • Current consumption: 1.5mA
  • Temperature range: −55°C to 125°C
  • MIL–PRF–55310 "B" level screening option
  • Package: 4 Pin ½ DIP Package with Through Hole and SMD lead options
  • Fully RoHS Compliant