1N4625/TR

Overview

The Microchip Technology 1N4625/TR is a single Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 5.1 V with a tolerance of ±5%. The device operates in the DO-35 axial through-hole package and supports a maximum power dissipation of 500 mW. Key electrical parameters include a maximum reverse leakage current of 5 µA at 3 V, a Zener impedance of 1500 Ohms, and a test current of 250 µA. It functions within an extended temperature range from -65°C to +175°C.

Feature Summary

• Provides stable voltage regulation with a nominal 5.1 V breakdown voltage.
• Capable of handling up to 500 mW of power dissipation in a compact form factor.
• Engineered for reliable operation across extreme environmental temperatures.

Applications

• Precision voltage reference circuits
• Overvoltage protection stages
• Clipping and clamping networks

Procurement Notes

Verify that the specific suffix /TR indicates tape-and-reel packaging rather than bulk supply when sourcing. Confirm compliance requirements such as RoHS status, as military-grade variants often differ from commercial equivalents. Ensure the ordering code matches the required package style and tolerance specifications for the intended design.

Selection Notes

Select this component when a standard 5.1 V reference is needed in an axial leaded package. Consider the 1500 Ohm impedance value for high-impedance circuit designs. Verify that the 500 mW thermal rating aligns with the expected operating conditions and ambient temperature constraints of the final assembly.

Part Context

This part belongs to the 1N4625 series of Zener diodes manufactured by Microchip Technology. It shares the fundamental electrical characteristics of the base 1N4625 model but is distinguished by its specific packaging configuration. The series is widely used in general-purpose electronic circuits requiring stable voltage regulation.

Replacement Considerations

Direct substitutes include other manufacturers' 1N4625 variants. Check for equivalent packages like DO-35 or DO-204AH. Ensure replacement parts match the 5.1 V nominal voltage and 500 mW power rating. Verify that the replacement's leakage current and impedance specs meet the original design requirements.