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OX-249
  • OX-249

OX-249

In Production

Microchip’s OX-249 is a Radiation Tolerant, Space Qualified, Oven Controlled Crystal Oscillator (OCXO). The OX-249 bridges the cost/size/performance gap that exists between small, lower power and large, higher power Space OCXO offerings.  By delivering SC-cut OCXO performance in a common Space TCXO footprint, Microchip's solution delivers a powerful combination of performance and miniaturization. Leveraging our Class S QPL manufacturing line, flight heritage, and leading OCXO technology, the OX-249 offers exceptional performance and reliability from LEO to Deep Space. Flight units utilize Swept Quartz, a 4-point Crystal Mount, Class K Element Evaluation IAW MIL-PRF-38534, and Class S Screening IAW MIL-PRF-55310. Engineering Models (EM) are fit, form, and functional equi...

Microchip Technology OX-249 Product Info

16 April 2026 0

Features

  • Frequency Range: 10 MHz to 100 MHz
  • Supply: 5V
  • Output: ACMOS, Sinewave, or LVDS
  • Temperature Stability: +/-100 ppb over -40°C to +85°C
  • ADEV (tau = 1s): 1E-11 max
  • Phase Noise @ 10Hz: -103 dBc/Hz max
  • Phase Noise @ 10kHz: -157 dBc/Hz max
  • Phase Noise @ 100kHz: -160 dBc/Hz max
  • Aging (per day): +/-2 ppb
  • Aging (15 years): +/-1000 ppb
  • Power (steady state @ +25°C): 1.5 Watts
  • Power (warm-up): 3.8 Watts
  • Total Ionizing Dose (TID) Tolerance: 300krad(Si)
  • Screening Options: Class S IAW MIL-PRF-55310
  • Enclosure: 24 Pin DDIP
  • Dimensions: 20 x 35 x 10 mm
  • Weight: 14 grams
  • Description

    Microchip’s OX-249 is a Radiation Tolerant, Space Qualified, Oven Controlled Crystal Oscillator (OCXO). The OX-249 bridges the cost/size/performance gap that exists between small, lower power and large, higher power Space OCXO offerings.  By delivering SC-cut OCXO performance in a common Space TCXO footprint, Microchip's solution delivers a powerful combination of performance and miniaturization. Leveraging our Class S QPL manufacturing line, flight heritage, and leading OCXO technology, the OX-249 offers exceptional performance and reliability from LEO to Deep Space. Flight units utilize Swept Quartz, a 4-point Crystal Mount, Class K Element Evaluation IAW MIL-PRF-38534, and Class S Screening IAW MIL-PRF-55310. Engineering Models (EM) are fit, form, and functional equivalents of the Flight Models (FM) and can withstand the same environmental envelope less radiation.

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