BPF-A400+

Overview

The BPF-A400+ is a surface-mount lumped LC bandpass filter manufactured by Mini-Circuits. It operates within a frequency range of 390 MHz to 410 MHz and features a standard impedance of 50Ω. The component utilizes a shielded case design, specifically the HQ1157 package style, to ensure signal integrity and minimize interference. It supports an RF input power range from 0.08W to 5W and functions reliably within an operating temperature range of -40°C to +85°C. This device is engineered to pass signals within its designated band while rejecting out-of-band frequencies.

Feature Summary

• Utilizes lumped LC technology for precise frequency selection in a compact surface-mount form factor.
• Features a shielded case construction to enhance performance and reduce external interference.
• Designed for aqueous washability to support specific manufacturing processes.

Applications

• Harmonic rejection in RF circuits
• Transmitter and receiver signal conditioning
• Industrial microwave and RF systems

Procurement Notes

Verify the exact datasheet version and test conditions when evaluating performance specifications. Confirm that the HQ1157 package dimensions align with your PCB layout requirements. Ensure that the selected component meets the necessary RoHS and REACH compliance standards for your target market. Cross-reference the electrical parameters against your system's specific impedance and power handling needs before finalizing the procurement.

Selection Notes

Select this component when a narrow bandpass response between 390 MHz and 410 MHz is required. The 50Ω impedance makes it suitable for standard RF infrastructure. Consider the thermal operating range if the application involves extreme environmental conditions. The shielded SMT package is ideal for space-constrained designs requiring high isolation from adjacent components.

Part Context

This part belongs to the Mini-Circuits BPF series of surface-mount bandpass filters. These components are designed using lumped LC technology and are available in various voltage standing wave ratio options. The series supports both 50Ω and 75Ω impedances and covers a broad spectrum of RF applications including telecommunications, medical, and military sectors.

Replacement Considerations

Consult official Mini-Circuits documentation for confirmed substitute part numbers. Verify that any replacement maintains the same 390-410 MHz passband and 50Ω impedance characteristics. Ensure the alternative component matches the HQ1157 package or provides compatible footprint dimensions for direct integration.