1M120ZHB0G

Overview

The 1M120ZHB0G is a single Zener diode manufactured by Taiwan Semiconductor Corporation, designed for through-hole mounting in the DO-41 (DO-204AL) axial leaded package. It features a nominal Zener voltage of 120 V with a tolerance of ±5%. The device supports a maximum power dissipation of 1 W at ambient temperatures up to +150°C and operates within a junction temperature range of -55°C to +150°C. Key electrical characteristics include a maximum reverse leakage current of 5 µA and a Zener impedance of 550 Ω measured at a test current of 2 mA.

Feature Summary

• Provides stable voltage regulation via Zener breakdown mechanism in the axial DO-41 package.
• Engineered for high thermal stability with a maximum operating junction temperature of +150°C.
• Features low reverse leakage current to minimize standby power consumption.

Applications

• Voltage reference circuits requiring precise 120 V levels
• Overvoltage protection stages in industrial control systems
• Clamping applications in high-voltage power supply designs

Procurement Notes

Verify the specific suffix 'H' against official manufacturer documentation to confirm halogen-free status or AEC-Q101 automotive qualification, as standard datasheets may not explicitly detail packing code implications. Confirm availability directly with the manufacturer or authorized distributors, as stock levels fluctuate. Ensure the procurement order matches the exact part number including all alphanumeric suffixes to guarantee correct packaging and compliance attributes.

Selection Notes

Select this component when a robust, through-hole Zener diode is required for high-voltage regulation tasks. The DO-41 package offers reliable mechanical stability for PCB mounting. Consider the 5% voltage tolerance and 550 Ω impedance for circuit precision requirements. Evaluate the 1 W power rating against expected thermal conditions to ensure safe operation without excessive heat sinking.

Part Context

This part belongs to the 1M series of Zener diodes from Taiwan Semiconductor, which utilizes silicon planar technology. The series is characterized by its axial leaded construction suitable for general-purpose electronic applications. The 'Z' designation typically indicates a specific voltage tolerance band within the product line.

Replacement Considerations

Cross-reference with other 120 V Zener diodes in the DO-41 package from qualified manufacturers. Verify that substitute parts match the 1 W power dissipation, ±5% tolerance, and similar impedance specifications to maintain circuit performance integrity.