FF-555 :SAW Filter


RoHS Compliant

pb free


  • Frequency range
    300MHz to 500MHz
  • Thickness
    1.5mm Typ.
  • Applications
    Wireless remote-control, Security
    (Automotive keyless entry)
  • Excellent shock resistance and environmental capability (prevention for contamination)
  • Low-loss, Narrow Pass bandwidth, High Stability by using crystal substrate.


Item Symbol Specifications Condition/Remarks
Nominal frequency range f_nom 300MHz to 500MHz
Storage temperature T_stg -55°C to +125°C Store as bare product.
Operating temperature T_use -40°C to +85°C
Insertion Loss IL 3.5dB Max. Minimum Loss
Pass bandwidth P_Bw f_nom ± 100kHz Min.
Reference to Through level (3.5dB down)
Attenuation G_Att f_nom -21.4MHz 40dB Min.
f_nom -10.7MHz 40dB Min.
Reference to Through level
Turnover temperature Ti +2 °C ±15°C
Temperature coefficient B -(3.4±0.8) × 10-8 / °C2
Terminal impedance Zt 370Ω Typ. Ex : 315MHz
160Ω Typ. Ex : 433.92MHz

Test fixture


External dimensions

(Unit: mm)

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

Footprint (Recommended)

(Unit: mm)

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