UMZ6.8NT106

Overview

The UMZ6.8NT106 is a Zener diode manufactured by ROHM Semiconductor, designed for surface-mount applications in the UMD (SOT-353) package with five terminals. It features a nominal Zener voltage of 6.8 V and a maximum power dissipation of 200 mW. The device operates within a junction temperature range of -55 °C to +150 °C. Key electrical parameters include a maximum reverse leakage current of 500 nA and a Zener impedance of 40 Ohms at a test current of 5 mA. The component utilizes a dual common anode configuration.

Feature Summary

• Dual common anode configuration for compact circuit integration
• Low capacitance characteristics suitable for signal line protection
• High thermal stability with extended operating temperature range

Applications

• Electrostatic discharge (ESD) protection for high-speed data lines
• Voltage reference circuits requiring stable low-voltage regulation
• Transient voltage suppression in portable electronic devices

Procurement Notes

Verify the specific suffix 'T106' against the manufacturer's official datasheet to confirm tape-and-reel packaging specifications and quantity per reel. Ensure the ordering part number matches the exact RoHS compliance status required for the target assembly process. Cross-reference the package code UMD/SOT-353 with PCB footprint libraries to prevent mounting errors during production.

Selection Notes

Select this component when a dual-channel Zener solution is required in a minimal footprint. The 6.8 V breakdown voltage suits low-voltage logic protection. Consider the 40 Ohm impedance for dynamic response requirements. Verify that the 200 mW power rating aligns with the expected thermal dissipation in the final enclosure design under worst-case ambient conditions.

Part Context

This part belongs to ROHM's UMZ series of low-capacitance Zener diodes. The series is engineered for ESD protection in high-speed interfaces where signal integrity is critical. The UMD package allows for dense board layouts compared to standard discrete diodes. This specific model represents a standard commercial grade variant within the broader lineup.

Replacement Considerations

Direct pin-compatible substitutes may include other ROHM models from the UMZ series with similar voltage ratings. Verify equivalent impedance and leakage current specs before substitution. Alternative manufacturers offering SOT-353 dual Zeners require careful review of clamping voltage curves and thermal resistance values.