CER0781A

Overview

The CER0781A is a ceramic bandpass filter manufactured by Tusonix, a subsidiary of CTS Electronic Components. Designed for surface-mount installation, this component operates within the 2.45 GHz ISM band with a bandwidth of 100 MHz. It features an insertion loss of 1 dB and is housed in a compact monolithic package measuring 2 pc board dimensions. The maximum height is 0.177 inches (4.50 mm). The device complies with RoHS3 standards and has a moisture sensitivity level of 1.

Feature Summary

• Provides selective frequency filtering within the 2.45 GHz industrial, scientific, and medical band
• Utilizes a monolithic ceramic construction for stable performance
• Supports automated surface-mount assembly processes

Applications

• Advanced driver assistance systems (ADAS)
• Industrial wireless communication modules
• Medical equipment RF sections
• Enterprise system connectivity

Procurement Notes

Verify the specific suffix code against the manufacturer's official datasheet to confirm exact electrical tolerances and termination specifications. Ensure the procurement channel provides valid RoHS3 compliance documentation. Confirm that the packaging format matches the required production line capabilities, as variations may exist between cut tape and reel configurations.

Selection Notes

Select this component when a fixed center frequency at 2.45 GHz is required for noise rejection. Evaluate the 100 MHz bandwidth against the signal spectrum requirements to ensure adequate adjacent channel isolation. Consider the physical footprint constraints relative to the available PCB real estate for surface-mount integration.

Part Context

This part belongs to the passive components category under the subcategory of ceramic filters. Tusonix produces these devices for high-reliability applications requiring precise frequency selection without active power consumption. The product line focuses on miniaturized solutions for modern electronic assemblies.

Replacement Considerations

Consult official substitution guides from CTS/Tusonix for direct equivalents. Verify pin compatibility and electrical parameters before integrating alternative sources.