MC-306 (kHz Range Crystal Unit SMD)

MC-306MC-306

RoHS Compliant
  • Frequency range
    32.768kHz (20kHz to 120kHz)
  • Thickness
    8.0 × 3.8 × 2.54mm
  • Overtone order
    Fundamental
  • Applications
    Clock and Microcomputer

Specifications

Item Symbol Specifications Condition/Remarks
Nominal frequency range f_nom 32.768kHz 20kHz to 120kHz Please contact us 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.
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 6pF to ∞ (standard :12.5pF) Please specify
Motional resistance (ESR) R1 50kΩ Max. As per below table
Motional capacitance C1 1.8fF Typ. 4.0fF to 0.6fF
Shunt capacitance C0 0.9pF Typ. 2.0pF to 0.6pF
Frequency aging f_age ±3 ×10-6 / year Max. ±5 ×10-6 / year Max. +25°C, First year

Product name (Standard form)

name

Motional resistance (ESR)

Frequency 20kHz≤f_nom
<31.2kHz
31.2kHz≤f_nom
<40kHz
40kHz≤f_nom
<90kHz
90kHz≤f_nom
<120kHz
Motional
resistance
55kΩ Max. 35kΩ Max. 20kΩ Max. 12kΩ Max.

External dimensions

dimension

(Unit: mm)

Footprint (Recommended)

footprint

(Unit: mm)

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