TBU-CA025-300-WH

Overview

The Bourns TBU-CA025-300-WH is a bi-directional transient voltage suppressor (TBU) designed for board-level surge protection. It features a DFN-3 package with three terminals and measures 6.5 mm in length. The device operates within a temperature range of -55 °C to +125 °C. It is RoHS compliant, lead-free, and classified under JESD-609 code e3. The component provides overcurrent and overvoltage protection capabilities.

Feature Summary

• Bi-directional surge suppression capability
• Integrated overcurrent and overvoltage protection
• Compact surface-mount DFN-3 packaging

Applications

• Board-level circuit protection
• Surge suppression applications

Procurement Notes

Verify the specific datasheet version and manufacturing site details prior to procurement, as product change notifications may affect assembly or marking. Confirm that the DFN-3 package dimensions align with the target PCB footprint. Ensure compliance requirements such as RoHS and lead-free status are documented for the specific order batch.

Selection Notes

Select this component when bi-directional protection is required for sensitive circuits. The DFN-3 form factor suits space-constrained designs. Verify thermal management needs against the specified operating temperature range of -55 °C to +125 °C. Ensure the application environment does not exceed the maximum junction temperature limits defined in the official specifications.

Part Context

This part belongs to the Bourns TBU series of high-speed protectors. These devices are engineered to provide robust circuit protection against transient events. The TBU-CA025-300-WH variant specifically utilizes a bi-directional configuration suitable for protecting lines where voltage polarity may reverse or is undefined.

Replacement Considerations

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