MC-146 / MC-146 TYPE (kHz Range Crystal Unit Low Profile SMD)

  • Frequency range
    :MC-146 32.768 kHz
    :MC-146 TYPE 32 kHz to 100kHz
  • External dimensions
    7.0 × 1.5 × 1.4mm
  • Overtone order
    Fundamental
  • Applications
    Small communications devices

RoHS Compliant

MC-146
MC-146

Specifications

Item Symbol Specifications Condition/Remarks
MC-146 MC-146 TYPE
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

name

External dimensions

dimension

(Unit: mm)

Do not connect #2 and #3 to external device.
Metal may be exposed on the top or bottom of this product. This will not affect any quality, reliability or electrical spec.

Footprint (Recommended)

footprint

(Unit: mm)

Marking

marking

marking symbol

Page Top