BSF-108+

Overview

The BSF-108+ is a lumped LC band stop RF filter manufactured by Mini-Circuits. It operates with a center frequency of 98 MHz and provides a bandwidth of 20 MHz, covering the 90 to 105 MHz range. The component features an insertion loss of 1.5 dB and is designed for 50 Ohm systems. It utilizes an 8-SMD, no lead surface mount package with dimensions of 18.80mm x 11.18mm x 6.86mm.

Feature Summary

• Lumped LC architecture for compact surface mount integration
• Band stop filtering capability within the 90-105 MHz range
• Shielded package design for signal integrity

Applications

• RF signal conditioning in communication systems
• Harmonic rejection in broadband frequency applications
• Spurious signal attenuation in receiver front-ends

Procurement Notes

Verify the exact part number suffix against official Mini-Circuits documentation to ensure correct specifications. Confirm RoHS3 compliance status and moisture sensitivity level (MSL 1) requirements for your assembly process. Cross-reference datasheet parameters such as insertion loss and bandwidth with your specific circuit design needs before procurement.

Selection Notes

Select this component when a narrow band stop response around 98 MHz is required in a surface mount layout. The 8-SMD package suits automated assembly processes. Ensure the 1.5 dB insertion loss meets system budget constraints. Verify that the 20 MHz bandwidth adequately covers the target interference frequencies without affecting desired passband signals.

Part Context

This component belongs to Mini-Circuits' BSF series of lumped LC band stop filters. These components are engineered for high performance in RF environments. The series offers various center frequencies to address different spectral requirements. The BSF-108+ specifically targets the VHF band applications requiring precise notch filtering capabilities.

Replacement Considerations

BSF-C88108+ is a shielded variant offering higher typical rejection of 46 dB. SXHP-108+ is a high-pass filter covering 108-1000 MHz, serving a different function. Direct substitution requires verifying impedance matching and physical footprint compatibility.