TBU-CA065-300-WH-Q

Overview

The TBU-CA065-300-WH-Q is a bidirectional board-level surge suppressor from the Bourns TBU-CA-Q series. It features a DFN-3 surface-mount package with dimensions of 6.5 mm length, 4 mm width, and 0.8 mm height. The device has a rated voltage of 650 V and a current rating of 100 mA. It operates within a temperature range of -55°C to +125°C and holds AEC-Q101 qualification for automotive applications.

Feature Summary

• Provides high-speed protection against overcurrent and overvoltage transients
• Bidirectional design suitable for protecting sensitive circuit lines
• AEC-Q101 qualified for reliable operation in automotive environments

Applications

• Voice cards
• VDSL cards

Procurement Notes

Verify the specific suffix 'Q' indicates AEC-Q101 automotive qualification distinct from standard commercial variants. Confirm the DFN-3 package footprint matches the target PCB layout. Ensure the 650 V rating aligns with system line voltages. Check RoHS compliance status for environmental regulations. Validate supplier documentation against the official Bourns datasheet.

Selection Notes

Select this component when automotive-grade reliability is required for communication interfaces. The 100 mA rating suits low-current signal lines rather than power distribution. The bidirectional nature allows use in AC or bipolar DC signaling environments. Consider the DFN-3 size for space-constrained designs requiring robust transient suppression.

Part Context

This part belongs to the TBU-CA-Q family of high-speed protectors designed for board-level surge suppression. It complements other TBU devices by offering automotive certification alongside standard protection features. The series targets telecommunications and industrial control sectors requiring durable transient management.

Replacement Considerations

TBU-CA065-100-WH-Q shares the same automotive qualification and package but differs in current rating.