L157XG3S-T

Overview

The L157XG3S-T is a surface-mount low-pass RF filter manufactured by Knowles Dielectric Labs. It features a center frequency of 15.7 GHz and operates at a nominal impedance of 50 Ohms. The component exhibits an insertion loss of 1.5 dB. It utilizes a 3-SMD, no-lead package with dimensions of 5.59mm length, 3.56mm width, and a maximum height of 2.62mm. The device supports board mounting and functions within a temperature range of -55°C to +125°C.

Feature Summary

• Provides signal conditioning via low-pass filtering for radio frequency applications
• Designed for surface mount technology integration on printed circuit boards
• Constructed in a compact three-terminal leadless SMD package

Applications

• Radio frequency signal processing circuits
• Wireless communication system components
• RFID infrastructure equipment

Procurement Notes

Verify the specific datasheet version for the L157XG3S-T model to confirm exact dimensional tolerances and electrical characteristics prior to procurement. Ensure compatibility with the intended PCB footprint and soldering profile. Confirm RoHS compliance status and moisture sensitivity level requirements against project specifications. Cross-reference manufacturer part numbers with distributor listings to ensure authenticity and traceability of the component supply chain.

Selection Notes

Select this component when a 15.7 GHz center frequency low-pass filter is required for 50 Ohm systems. The 1.5 dB insertion loss specification should be evaluated against system power budget constraints. The 3-SMD no-lead package requires appropriate reflow soldering processes. Verify that the operating temperature range meets the environmental conditions of the final assembly application.

Part Context

This component belongs to the L157XG series of low-pass filters from Knowles Dielectric Labs. The series includes variants such as the L157XG3S (6-terminal) and L157XH4W-T. These devices are engineered for high-frequency signal integrity in modern electronic designs requiring precise RF filtering capabilities.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.