MFC 21000B-3700/4200

21000B-3700/4200 C-Band Bandpass Filter | Extreme Rejection & IP67 Protection

The 21000B-3700/4200 C-band bandpass filter provides superior interference rejection with a 3700–4200 MHz passband and up to 70 dB attenuation at 3500 and 4400 MHz. Designed for professional satellite downlink systems, it features ultra-low insertion loss (≤0.5 dB), excellent return loss, and group delay stability for optimal signal integrity. Housed in a rugged, IP67-rated outdoor enclosure with CPR-229 flanges, it ensures reliable performance in harsh environments impacted by 5G, WiMAX, and other out-of-band signals.

Key Features:

Passband: 3700–4200 MHz
Stopband Rejection:
• ≥25 dB @ 3650 & 4250 MHz
• ≥60 dB @ 3550 & 4350 MHz
• ≥70 dB @ 3500 & 4400 MHz
• ≥70 dB @ 5800 & 6500 MHz
Insertion Loss: ≤0.5 dB max
Return Loss: ≥15.6 dB
Group Delay Variation: <1 ns within ±0.5 MHz
Flanges: CPR-229G (input), CPR-229F (output)
Environmental Rating: IP67 (Outdoor rated)

Operating Temperature: –40°C to +40°C