Band Pass FiltersBPF 225-400

Band-Pass Filter for 225 400 MHz

Description

  • Miniature LC band-pass filter.
  • Allows the whole 225 - 400 MHz band to pass.
  • Series coupled high/low pass filter design.
  • Chebychev characteristic ensures low insertion loss and high out-of-band rejection.
  • Can be used as transmitter filter to prevent out-of-band and harmonics radiation.
  • Can be used as a preselector filter to protect a receiver against interferences from transmitters normally being outside the band-pass range.
  • Very small dimensions, mounted in a 45 x 50 mm box.
  • Also available with TNC(f), BNC(f) or SMA(f) connectors types.
  • Provided with dual adhesive pad for quick installation.
  • BPF 225-400 is lacquered with black vinyl enamel to avoid corrosion.

Specifications

Electrical
Model BPF 225-400
Frequency 225 - 400 MHz
Max. Input Power 35 W
Insertion Loss ≤ 1.0 dB typ. ≤ 0.7 dB
Impedance 50 Ω
Reject Attenuation See curve
VSWR < 1.5:1
Bandwidth 175 MHz
Mechanical
Connection(s) FME(m), TNC(f), BNC(f) or SMA(f)
Dimensions FME(m) :
50 x 21 x 48 mm / 1.97 x 0.83 x 1.89 in. (incl. conn.)

TNC(f), BNC(f), SMA(f) :
50 x 21 x 52 mm / 1.97 x 0.83 x 2.05 in. (incl. conn.)
Weight Approx. 0.06 kg / 0.13 lb.
Environmental
Operating temperature range -30 °C to +60 °C
Ingress Protection IP41

Diagram and Mounting

TYPICAL RESPONSE CURVES

MECHANICAL OUTLINE

Ordering Designations

Model Product No.
BPF 225-400 FME(m) 200002369
BPF 225-400 TNC(f) 200002370
BPF 225-400 BNC(f) 200001150
BPF 225-400 SMA(f) 200002371