B038NC4S-T

Overview

The B038NC4S-T is a surface mount bandpass filter manufactured by Knowles Dielectric Labs, designed for signal conditioning applications. It operates at a center frequency of 3.8 GHz with a bandwidth ranging from 3.4 GHz to 4.2 GHz and a fractional bandwidth of 15%. The component features a 50 Ohm impedance and an insertion loss of 2 dB. It supports a minimum operating temperature of -55°C and a maximum of +125°C. The device utilizes SMD/SMT termination and is supplied in a reel package.

Feature Summary

• Surface mount construction for automated board integration
• Bandpass filtering capability within the specified microwave frequency range
• Operational stability across extended industrial temperature extremes

Applications

• Microwave communication systems
• Satellite communication (SatCom) infrastructure
• Signal conditioning circuits requiring precise frequency selection

Procurement Notes

Verify the specific suffix configuration against official datasheets to ensure compatibility with required packaging and performance specifications. Confirm availability status through authorized distributors as supply levels may vary. Ensure that the selected variant meets all environmental and electrical requirements for the intended deployment environment before finalizing procurement orders.

Selection Notes

Select this component when a fixed-frequency bandpass response is required around 3.8 GHz with moderate bandwidth constraints. Evaluate the thermal management capabilities to ensure operation within the -55°C to +125°C range. Compare insertion loss characteristics against system link budget requirements to determine suitability for low-loss signal paths in high-frequency applications.

Part Context

This part belongs to the Bandpass series produced by Knowles Dielectric Labs, specializing in microwave signal conditioning components. It is engineered for use in demanding RF environments where stable frequency response and compact surface-mount form factors are critical. The product line targets applications requiring reliable performance in satellite and wireless communication networks.

Replacement Considerations

Consult official substitution guides for compatible alternatives. Verify that any replacement maintains identical center frequency, bandwidth, and impedance specifications to ensure circuit continuity.