B040MB5S-T

Overview

The B040MB5S-T is a surface mount bandpass filter manufactured by Knowles Dielectric Labs, designed for signal conditioning applications. It operates at a center frequency of 4.0 GHz with a bandwidth of 440 MHz. The component features a 50 Ohm impedance and utilizes SMD/SMT termination styles for board mounting. It is rated for an operating temperature range from -55°C to +125°C. The device is supplied in a reel packaging format.

Feature Summary

• Provides selective frequency filtering within the specified 4.0 GHz bandpass range
• Designed for direct surface mount integration onto printed circuit boards
• Maintains stable electrical performance across extended industrial temperature ranges

Applications

• RF signal conditioning circuits
• Wireless communication systems requiring 4.0 GHz filtering
• Microwave receiver front-ends

Procurement Notes

Verify the specific datasheet version for the B040MB5S-T suffix to confirm exact mechanical dimensions and electrical tolerances against your design requirements. Ensure compatibility with standard reflow soldering profiles for SMD components. Confirm availability status as supply conditions may vary by region and distributor.

Selection Notes

Select this component when a fixed 4.0 GHz center frequency with 440 MHz bandwidth is required. The 50 Ohm impedance matches standard RF transmission lines. Consider the -55°C to +125°C rating for harsh environment deployments. Verify that the surface mount package fits the available PCB real estate constraints.

Part Context

This part belongs to the Knowles Dielectric Labs Bandpass series, which offers various center frequencies and bandwidths for RF applications. The B040MB5S-T specifically targets the 4.0 GHz segment, distinguishing it from other models like the B095MB1S or B160KA1S-T which operate at different frequencies such as 9.5 GHz or 16.0 GHz respectively.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Engineers should consult the manufacturer directly for qualified alternatives or cross-reference similar specifications from other vendors if sourcing becomes restricted.