MC-156 (kHz Range Crystal Unit Low Profile SMD)

  • Frequency range
    32.768kHz (32kHz to 100kHz)
  • External dimensions
    7.1 × 3.3 × 1.5mm
  • Overtone order
  • Applications
    Small communications devices

RoHS Compliant



Item Symbol Specifications Condition/Remarks
Nominal frequency range f_nom 32.768kHz 32kHz to 100kHz Please contact us for inquiries regarding available frequencies
Storage temperature T_stg -55°C to +125°C Store as bare product.
Operating temperature T_use -40°C to +85°C
Level of drive DL 1.0µW Max. Operating Drive level 0.5µW Max.
Frequency tolerance (standard) f_tol ± 20 × 10-6, ± 50 × 10-6 ± 50 × 10-6, ± 100 × 10-6 +25°C, DL=0.1µW
Turnover temperature Ti +25°C ±5°C
Parabolic coefficient B -0.04 × 10-6/ °C2 Max.
Load capacitance CL 7pF, 9pF, 12.5pF Please specify
Motional resistance (ESR) R1 65kΩ Max. 65kΩ to 25kΩ
Motional capacitance C1 1.9fF Typ. 2.5fF to 0.6fF
Shunt capacitance C0 0.8pF Typ. 1.2pF to 0.5pF
Frequency aging f_age ±3 ×10-6 / year Max. ±5 ×10-6 / year Max. +25°C, First year

Product name (Standard form)


External dimensions


(Unit: mm)

Footprint (Recommended)


(Unit: mm)

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