TBU-DT085-500-WH

Overview

The Bourns TBU-DT085-500-WH is a dual unidirectional board mount surge protector from the TBU-DT series. It features an SMD DFN package with voltage and current ratings of 850 V and 1 A, respectively. The device operates within a temperature range of -40°C to +85°C. Certified by UL, it provides overcurrent and overvoltage protection for Ethernet ports, protection modules, dongles, and test equipment.

Feature Summary

• Dual unidirectional configuration for multi-line circuit protection
• Solid-state silicon technology for reliable surge suppression
• Integrated overcurrent and overvoltage protection capabilities

Applications

• Ethernet port protection
• Protection modules and dongles
• Test equipment

Procurement Notes

Verify the specific part number suffix against official Bourns documentation to confirm pinout and electrical characteristics. Ensure the selected variant matches the required voltage rating of 850 V and current rating of 1 A for the target application. Confirm UL compliance status and operating temperature range specifications prior to integration.

Selection Notes

Select this component for applications requiring dual-channel surge protection in a compact surface-mount form factor. The TBU-DT series is suitable for protecting sensitive electronics against transient events. Consider the 850 V rating and 1 A current capacity when designing circuits for Ethernet or similar high-speed data interfaces.

Part Context

This device belongs to the Bourns TBU® High-Speed Protector (HSP) family, specifically the TBU-DT series designed for dual unidirectional applications. These solid-state devices act as effective barriers against lightning, power induction, and ground potential rise events, offering resettable protection compared to traditional fuses.

Replacement Considerations

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