Epson Small size / low ESR 32.768 kHz crystal unit FC1610BN

 FC1610BN is a small size (1.6 mm x 1.0 mm) and low ESR (70 kΩ) 32.768 kHz crystal oscillator. Ideal for IoT (BLE, LPWA, etc.) sleep clocks that require small size and low power, clocks for wearable devices, sub clocks for microcomputers, etc. The operating temperature range is supported up to +105 ℃.
Epson is a leading supplier of kHz-band crystal units and offers a lineup of oscillators with built-in oscillator circuit ICs and real-time clock modules with built-in real-time clock ICs.

  - Package size: 1.6 x 1.0 mm , t = 0.5 mm Max.
  - Frequency Tolerance: ±20 x 10^-6 (+25 ℃ ± 5 ℃)
  - Operating Temperature: -40 ℃ to +85 ℃ / -40 ℃ to +105 ℃
  - ESR: 45 kΩ Typ. (+25 ℃) /
     60 kΩ Typ. (-40 ℃ to +85 ℃) / 70 kΩ Typ. (-40 ℃ to +105 ℃)

MCUs for Sub-clock