TBU-CA050-300-WH

Overview

The Bourns TBU-CA050-300-WH is a board-mount surge protector from the TBU series, designed for bidirectional circuit protection. It features an internal switch mechanism with a maximum clamping voltage of 500V and a working voltage of 250V. The component supports a peak pulse current of 0.6A and operates within a temperature range of -40°C to +125°C. Housed in a compact SMD package measuring 6.50mm x 4.00mm, it provides overcurrent and overvoltage protection for sensitive electronics.

Feature Summary

• Bidirectional surge protection capability
• Integrated internal switching mechanism
• High-speed transient response
• Compact surface-mount DFN packaging

Applications

• Industrial control systems
• Automotive electronics
• Telecommunications equipment
• Consumer appliances

Procurement Notes

Verify the specific datasheet version for the TBU-CA050-300-WH to ensure compatibility with design requirements. Confirm that the 500V clamping voltage and 0.6A peak pulse current ratings meet the application's surge protection needs. Check for any recent product change notices regarding assembly origin or material composition before finalizing procurement.

Selection Notes

Select this component when bidirectional protection is required for circuits exposed to transient voltage spikes. The 250V working voltage makes it suitable for applications where standard unidirectional TVS diodes may not provide adequate coverage. Ensure the PCB footprint matches the 6.50mm x 4.00mm SMD package dimensions for proper installation.

Part Context

This part belongs to Bourns' TBU (Transient Breakdown Unit) series, which offers high-speed protection against catastrophic events. Unlike traditional fuses or standard TVS diodes, the TBU series combines overcurrent and overvoltage protection in a single device, helping to prolong the life of electronics by preventing damage from out-of-spec conditions.

Replacement Considerations

Direct substitutes include other Bourns TBU series components with similar voltage and current ratings, such as the TBU-CA085-300-WH for higher voltage applications. Verify pinout and package compatibility when considering cross-model replacements to ensure seamless integration into existing designs.