B148QF0S

Overview

The B148QF0S is a surface-mount bandpass RF filter manufactured by Knowles Dielectric Labs. It operates with a center frequency of 15 GHz and features a bandwidth of 3.1 dB. The component utilizes a 6-SMD, no-lead package configuration for board mounting. It maintains a system impedance of 50 Ohms and exhibits an insertion loss of 1.75 dB. The device supports an operating temperature range from -55 °C to +125 °C.

Feature Summary

• Provides precise signal filtering within the microwave frequency spectrum
• Utilizes temperature-stable dielectric materials for reliable performance
• Designed for compact surface-mount integration in high-frequency circuits

Applications

• Satellite communication systems
• Microwave radio links
• High-frequency test and measurement equipment

Procurement Notes

Verify the specific datasheet version and RoHS compliance status directly with the manufacturer or authorized distributor before procurement. Confirm that the 6-SMD no-lead package dimensions align with your PCB footprint requirements. Ensure thermal management strategies accommodate the specified operating temperature range during final assembly and operation.

Selection Notes

Select this component when a narrow 3.1 dB bandwidth at 15 GHz is required for signal conditioning. The 50 Ohm impedance matches standard RF transmission lines. Consider the SMD package for automated assembly processes. Evaluate the insertion loss specification against system link budget requirements to ensure adequate signal integrity.

Part Context

This part belongs to the Knowles Dielectric Labs microwave product line, which specializes in temperature-stable dielectric materials. These components are engineered for high reliability in demanding environments. The brand focuses on providing robust solutions for satellite communications and other critical RF applications requiring stable performance across wide temperature variations.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing designs by comparing electrical parameters such as center frequency, bandwidth, and impedance. Consult the manufacturer for potential alternative models if supply constraints exist.