CER0109A

Overview

The CER0109A is a ceramic bandpass filter manufactured by Tusonix, designed for RF signal conditioning. It operates at a center frequency of 1.95 GHz with a bandwidth of 60 MHz and an insertion loss of 1 dB. The component features a surface-mount package with dimensions of 7.05 mm x 3.93 mm x 5.61 mm maximum height. It is RoHS compliant and suitable for applications requiring precise frequency selection in the 1.92–1.98 GHz range.

Feature Summary

• Provides selective bandpass filtering for specific RF frequencies
• Utilizes ceramic construction for stable electromagnetic performance
• Designed for surface-mount integration into compact circuits

Applications

• Wireless communication systems operating near 1.95 GHz
• RF front-end modules requiring interference rejection
• Signal conditioning in cellular infrastructure equipment

Procurement Notes

Verify the manufacturer designation as Tusonix, a subsidiary of CTS Electronic Components, to ensure authenticity. Confirm the package dimensions and RoHS compliance status against the official datasheet before procurement. Ensure the ordering suffix matches the required tape and reel or cut tape configuration for your assembly line.

Selection Notes

Select this component when a 1.95 GHz center frequency with 60 MHz bandwidth is required. Consider the 1 dB insertion loss and physical footprint of 7.05 mm x 3.93 mm for PCB layout constraints. Verify compatibility with surface-mount assembly processes and thermal requirements up to the specified operating limits.

Part Context

This component belongs to the Tusonix family of ceramic filters, which are engineered for electromagnetic interference (EMI) and radio frequency interference (RFI) suppression. These filters are widely used in RF applications where high selectivity and compact size are critical for maintaining signal integrity in crowded spectral environments.

Replacement Considerations

The CER0109B is a related variant within the same product family. Verify electrical specifications such as center frequency and bandwidth against the CER0109B datasheet to ensure functional equivalence for your specific application requirements.