1N976B-1/TR

Single Zener Diodes Overview

The Microchip Technology 1N976B-1/TR is a single Zener diode designed for through-hole mounting in the DO-204AH-2 (DO-15) package. It provides a nominal Zener voltage of 43 V with a 5% tolerance at a test current of 5.9 mA. The device dissipates up to 500 mW and operates within an extended temperature range from -65°C to +175°C. Key electrical characteristics include a maximum reverse leakage current of 5 µA, a Zener impedance of 85 Ohms, and a positive voltage temperature coefficient of 0.072 %/°C.

Single Zener Diodes Feature Summary

• Extended high-temperature operation capability up to +175°C
• Tight voltage tolerance of 5% for precision regulation
• Low reverse leakage current for efficient standby performance

Single Zener Diodes Applications

• Precision voltage reference circuits
• Over-voltage protection stages
• Voltage regulator bias networks

Single Zener Diodes Procurement Notes

Verify the specific suffix configuration against official datasheets to ensure correct voltage tolerance and packaging options. Confirm that the DO-204AH-2 lead form matches the target PCB footprint requirements. Cross-reference the manufacturer part number with authorized distribution channels to validate authenticity and traceability documentation.

Single Zener Diodes Selection Notes

Select this component when a stable 43 V reference is required in high-thermal environments. The low leakage current makes it suitable for sensitive analog interfaces. Ensure the circuit design accommodates the specified Zener impedance to maintain regulation accuracy under dynamic load conditions.

Single Zener Diodes Part Context

This component belongs to the standard 1N series of axial leaded Zener diodes manufactured by Microchip Technology. It utilizes the robust DO-204AH-2 plastic encapsulation, which offers superior mechanical stability compared to smaller glass packages. The product line supports industrial and aerospace applications requiring reliable voltage clamping.

Single Zener Diodes Replacement Considerations

Consult official substitution matrices for compatible equivalents. Verify pinout compatibility and thermal derating curves before integrating alternative manufacturers' parts into existing designs.