FS-555 (Saw Resonator High-Stability)

  • Frequency range
    230MHz to 500MHz
  • External dimensions
    4.8 × 5.2 × 1.5mm
  • Overtone order
  • Applications
    Small wireless equipment, RFID,
    Remote Keyless Entry, Short Range Data


pb free

RoHS Compliant



Item Symbol Specifications Condition/Remarks
Nominal frequency range f_nom 230MHz to 500MHz Please contact us regarding available frequencies
Storage temperature T_stg -40°C to +85°C Store as bare product.
Operating temperature T_use -40°C to +85°C
Level of drive DL 2mW Typ.
Frequency tolerance(standard) f_tol As per below table +25°C
Turnover temperature Ti +25°C ±15°C Please specify
Parabolic coefficient B -(3.4±0.8)×10-8/°C2
Harmonic ratio RS/R1 2Min.
Motional resistance(ESR) R1 As per below table
Frequency aging f_age ±10 × 10-6 / year Max. +25°C
Shock resistance S.R. ±10 × 10-6 Max. Nine drops on a concrete surface from 1500mm

Product name (Standard form)

Product name (Standard form) / Product number

Frequency tolerance / Motional resistance

Item 230MHz to 250MHz 250MHz to 500MHz
Frequency tolerance (standard) ±50 × 10-6, ±100 × 10-6 *1
Motional resistance (ESR) 40Ω Max. 25Ω Max.

*1 Please contact us regarding frequency tolerance ( < ±50 × 10-6)

External dimension

(Unit: mm)

#1,#2,#5,#6 are connected to the cover.

Footprint (Recommended)

(Unit: mm)

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