BPF-A122+

Overview

The Mini-Circuits BPF-A122+ is a surface-mount bandpass filter utilizing lumped LC technology within a shielded case. It operates at a center frequency of 122 MHz with a bandwidth of 6 MHz, covering a passband from 119 to 125 MHz. The component features a 50-ohm impedance and SMD/SMT termination style. Its physical dimensions are 9.27 mm x 3.45 mm x 8.89 mm. The device supports an RF input power range of 0.08W to 5W and functions within an operating temperature range of -40°C to +85°C.

Feature Summary

• Shielded surface-mount construction for reliable signal integrity
• Lumped LC technology design for precise frequency selection
• Aqueous washable capability for manufacturing compatibility

Applications

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

Procurement Notes

Verify the specific datasheet revision and electrical test conditions prior to procurement. Confirm that the shielded package dimensions and termination style match the PCB layout requirements. Ensure the operating temperature range and maximum input power ratings align with the system environment to prevent performance degradation or component failure during operation.

Selection Notes

Select this component when a narrow 6 MHz bandwidth is required around 122 MHz with 50-ohm impedance. Consider the shielded SMD package for space-constrained designs requiring electromagnetic isolation. Evaluate the lumped LC topology against distributed alternatives for cost and size optimization in VHF applications.

Part Context

This part belongs to the BPF series of surface-mount bandpass filters from Mini-Circuits. These filters are engineered for signal conditioning tasks where out-of-band signal rejection is critical. The series offers various impedance options and voltage standing wave ratio configurations suitable for diverse RF environments including telecommunications and military applications.

Replacement Considerations

No public confirmed substitute part numbers are available.