BPF-A355+

Overview

The Mini-Circuits BPF-A355+ is a surface-mount bandpass filter designed for RF applications. It operates within a frequency range of 310 to 400 MHz, centered at 355 MHz with a bandwidth of 90 MHz. The component features a 50 Ohm impedance and exhibits an insertion loss of 3.5 dB. Housed in the HQ1157 shielded package, it supports board mounting and is suitable for compact circuit designs requiring precise signal filtering.

Feature Summary

• Provides bandpass filtering functionality within the 310 to 400 MHz spectrum
• Utilizes a shielded surface-mount package for compact integration
• Maintains standard 50 Ohm system impedance

Applications

• RF signal conditioning circuits
• Wireless communication systems
• Industrial measurement equipment

Procurement Notes

Verify the specific datasheet version when sourcing, as Mini-Circuits may update performance curves or mechanical dimensions over time. Confirm that the HQ1157 package style matches your PCB footprint requirements. Ensure the supplier provides genuine components from authorized channels to guarantee the specified 3.5 dB insertion loss and frequency response characteristics are met.

Selection Notes

Select this component when a fixed center frequency of 355 MHz is required. The 90 MHz bandwidth defines the passband width; ensure this aligns with your signal requirements. The shielded SMT package is appropriate for high-density layouts. Consider the 3.5 dB insertion loss impact on system gain when designing the signal chain.

Part Context

This part belongs to the Mini-Circuits BPF series of passive RF filters. These components are engineered for stable performance across industrial temperature ranges. The product line focuses on providing reliable frequency selection for RF front-ends, supporting various wireless and test applications through standardized impedance and compact form factors.

Replacement Considerations

Consult official Mini-Circuits documentation for direct substitutes. Verify that any alternative maintains the 310-400 MHz passband and compatible HQ1157 or equivalent footprint. Cross-referencing insertion loss and isolation specifications is essential to maintain circuit integrity.