TBU-CA065-300-WH

Overview

The Bourns TBU-CA065-300-WH is a bidirectional transient voltage suppressor diode from the TBU series, designed for board-level surge protection. It features a DFN surface-mount package with dimensions of 6.5 mm length, 4 mm width, and 0.85 mm height. The device has a maximum reverse standoff voltage (Vwm) of 20 V and a clamping voltage (VC) of 650 V. It supports a peak pulse current (Ippm) of 0.6 A and operates within a temperature range of -55°C to +125°C.

Feature Summary

• Bidirectional configuration for protecting circuits against transient voltages in both polarities
• Solid-state silicon construction providing fast response to overvoltage events
• Compact DFN surface-mount form factor suitable for space-constrained designs

Applications

• ESD protection for high-speed data lines
• Surge suppression in industrial control systems
• Protection for automotive electronic modules

Procurement Notes

Verify the specific part number suffix WH against the manufacturer's latest datasheet to confirm pinout and packaging details. Ensure the selected component meets the required voltage and current ratings for the target application circuit. Cross-reference the RoHS compliance status with current regulatory requirements before finalizing procurement orders.

Selection Notes

Select this component when bidirectional protection is required for low-voltage signal lines exposed to transient surges. The 20 V standoff voltage makes it suitable for applications where the operating voltage remains below this threshold. Consider the 0.6 A peak pulse current capability for moderate energy dissipation needs.

Part Context

This device belongs to the Bourns TBU series of high-speed protectors, which are solid-state current limiters designed to replace traditional fuses or gas discharge tubes in certain applications. The CA variant specifically denotes a standard commercial grade device with defined trigger characteristics for general-purpose circuit protection.

Replacement Considerations

Direct substitutes include other bidirectional TVS diodes in DFN packages with similar 20 V standoff and 650 V clamping voltages. Verify that any replacement maintains the same package footprint and thermal characteristics to ensure compatibility with existing PCB layouts.