TBU-PL050-200-WH

Overview

The Bourns TBU-PL050-200-WH is a board-mount surge protector from the TBU-PL series, designed for high-speed protection. It features a dual 50 ohm bidirectional configuration with an 850 V rated voltage and a 400 mA current rating. The device operates within a temperature range of -55 °C to +125 °C and utilizes a DFN surface mount package. It provides overcurrent and overvoltage protection for sensitive circuits.

Feature Summary

• Dual 50 ohm bidirectional architecture for balanced signal line protection
• High-speed transient suppression via silicon-based solid-state technology
• Integrated overcurrent and overvoltage blocking capabilities

Applications

• Voice and VoIP slicer protection
• Telecommunications data lines
• Network communication interfaces

Procurement Notes

Verify the specific part number suffix against official Bourns documentation to ensure correct packaging and variant selection. Confirm that the DFN package dimensions align with your PCB footprint requirements. Ensure compliance with RoHS standards as indicated in manufacturer specifications before final procurement.

Selection Notes

Select this component when dual-channel bidirectional protection is required for 50 ohm impedance lines. The high voltage rating suits applications exposed to significant transient energy. Consider the thermal operating range and surface mount constraints during circuit layout design to ensure reliable performance under stress conditions.

Part Context

This device belongs to the TBU-PL series of High-Speed Protectors (HSP). These are silicon-based solid-state resettable devices acting as series barriers. They block transient currents while providing voltage isolation, offering superior protection compared to traditional components in demanding surge environments.

Replacement Considerations

Cross-reference with other TBU-PL series variants such as TBU-PL060-100-WH or TBU-PL085-200-WH if different current or voltage thresholds are needed. Verify pin compatibility and package integrity when substituting with other manufacturers' bidirectional TVS arrays.