Bandpass Filter, BPF-3D25G-87D1M-SFF

Why It Matters

The filter’s low loss and small footprint enable tighter RF front‑end designs, accelerating deployment of next‑gen wireless and aerospace solutions. Its performance helps OEMs meet stringent size, weight, and efficiency targets in competitive markets.

Key Takeaways

• 3.25 GHz bandpass filter with 87 MHz bandwidth
• Insertion loss capped at 1.1 dB across passband
• Compact 1.63" × 1.0" × 0.7" SFF package
• SMA female connectors simplify board integration

Pulse Analysis

The 3.25 GHz spectrum is a hotbed for 5G mid‑band deployments, satellite broadband, and advanced radar. Engineers seeking to squeeze more functionality into limited chassis space turn to miniature band‑pass filters that preserve signal integrity while meeting strict regulatory masks. PMI’s BPF‑3D25G‑87D1M‑SFF answers that demand, delivering a tight 87 MHz passband that aligns with common channel allocations for carrier aggregation and phased‑array radar modules.

From a technical standpoint, the filter’s 1.1 dB maximum insertion loss is competitive for passive components operating at gigahertz frequencies. The narrow insertion‑loss spec ensures minimal signal attenuation, which translates to higher link budgets and lower power consumption for downstream amplifiers. Its SFF (small form factor) housing—just 1.63 inches by 1.0 inch by 0.7 inch—fits comfortably on densely populated RF boards, while the SMA female connectors provide a reliable, industry‑standard interface that reduces assembly time and mitigates mismatches.

In the broader market, PMI’s reputation for rugged, monolithic RF solutions gives OEMs confidence in long‑term reliability, especially for aerospace and defense programs where thermal cycling and vibration are critical concerns. As supply chains tighten, sourcing a filter that combines performance, size, and proven manufacturing can shorten product cycles and lower total cost of ownership. The BPF‑3D25G‑87D1M‑SFF thus positions itself as a strategic component for firms racing to commercialize 5G infrastructure, satellite constellations, and next‑generation radar platforms.