B118LB4S

Overview

The B118LB4S is a surface-mount bandpass filter manufactured by Knowles Dielectric Labs. It operates within a frequency range of 11.6 GHz to 12.1 GHz, providing a bandwidth of 1.5 GHz. The component features a 50 Ohm impedance and an insertion loss of 1.75 dB. Designed for board mounting, it supports SMD/SMT termination types. The device functions reliably within a temperature range of -55°C to +125°C. Its physical dimensions are 0.45 x 0.200 x 0.103 inches.

Feature Summary

• Incorporates low-loss, high permittivity ceramics to ensure minimal performance variation over temperature.
• Fully shielded construction provides excellent repeatability and high-frequency attenuation.
• Offers a compact size suitable for space-constrained signal conditioning applications.

Applications

• High-frequency signal conditioning circuits
• RF filter implementations requiring specific bandpass characteristics
• Signal processing systems operating in the K-band frequency range

Procurement Notes

Verify the exact part number against official manufacturer documentation before procurement. Confirm that the specified frequency range and impedance match your system requirements. Ensure compatibility with surface-mount assembly processes. Check for any specific handling or storage instructions related to the ceramic composition. Validate RoHS compliance status if required by your manufacturing standards.

Selection Notes

Select this component when a precise 11.6-12.1 GHz bandpass response is required. Consider the 1.75 dB insertion loss impact on system gain. Evaluate the thermal stability provided by the ceramic material for your operating environment. Ensure the PCB layout accommodates the specified physical footprint. Verify that the shielding meets electromagnetic interference requirements for the application.

Part Context

This component belongs to the Knowles Dielectric Labs bandpass filter series. These filters utilize advanced dielectric materials for stable RF performance. The product line focuses on signal conditioning solutions for high-frequency electronics. The B118LB4S represents a specific frequency variant within this broader portfolio of surface-mount filters.

FAQ

What is the primary function of the B118LB4S?

It serves as a surface-mount bandpass filter designed for signal conditioning in the 11.6 to 12.1 GHz frequency range.

How does the component handle temperature variations?

It uses low-loss, high permittivity ceramics to provide minimal performance variation over its operating temperature range of -55°C to +125°C.