16 MHz to 96 MHz crystal offers tight stability over time and temperature

ECS Inc.

The compact ECX-1637B is a surface-mount crystal from ECS Inc., which fits in small wireless and IoT applications, and features aging in the first year of just ±1 ppm maximum at 25°C.

Housed in a 2.0 mm x 1.6 mm x 0.45 mm ceramic package, the ECX-1637B supports frequencies in a range from 16 MHz to 96 MHz with a standard frequency tolerance of ±10 ppm. Multiple frequency stability options over the standard operating-temperature range of -30°C to 85°C include devices with stability as tight as ±10 ppm.


ECS also offers the ECX-1637B with an extended operating-temperature range up to 125°C.


  • Maximum 3 pF shunt capacitance
  • Load capacitance options:
    • 8 pF or 10 pF
  • 100 µW drive power
  • Minimum ±7 ppm frequency tolerance option
  • Available in 1,000- and 3,000-piece reels


  • IoT devices
  • Mobile devices
  • Wearable devices
  • Wireless communications
  • Wi-Fi® networking
  • Bluetooth® networking
  • Zigbee networking
What is Frequency?

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