B274MB1S

Overview

The B274MB1S is a surface-mount bandpass filter manufactured by Knowles Dielectric Labs, designed for signal conditioning applications. It operates at a center frequency of 28 GHz with a bandwidth of 3 GHz. The component features a nominal insertion loss of 3.5 dB and maintains a system impedance of 50 Ohms. It utilizes SMD/SMT termination types for board mounting. The device functions within an operating temperature range from -55°C to +125°C.

Feature Summary

• Surface-mount construction for direct board integration
• High-frequency operation centered at 28 GHz
• Wide 3 GHz bandwidth capability
• Robust thermal performance up to +125°C

Applications

• Wireless communication systems requiring 28 GHz filtering
• Signal conditioning in RF front-end modules
• Test and measurement equipment operating in millimeter-wave bands

Procurement Notes

Verify the specific package configuration upon ordering, as bulk packaging is standard while reel or cut tape options may exist under different suffixes such as B274MB1S-T. Confirm RoHS compliance status directly with the manufacturer documentation before finalizing procurement specifications to ensure regulatory adherence.

Selection Notes

Select this component when a fixed 28 GHz center frequency and 3 GHz bandwidth are required for high-frequency signal processing. Ensure the design accommodates the 50 Ohm impedance and SMD form factor. Verify that the operational environment stays within the specified -55°C to +125°C temperature limits for reliable performance.

Part Context

This part belongs to the Knowles Dielectric Labs Bandpass series, categorized under signal conditioning components. It is distinct from other models like B275MB2S-T which may offer different packaging formats such as reels. The B274MB1S represents a standard bulk-packaged solution for millimeter-wave applications.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Evaluate alternative filters based on matching 28 GHz frequency, 3 GHz bandwidth, and 50 Ohm impedance requirements if substitution is necessary.