1N4765/TR

Overview

The Microchip Technology 1N4765/TR is a temperature-compensated Zener reference diode designed for precision voltage regulation applications. It features a nominal Zener voltage of 9.1 V with a tolerance of ±5%. The device operates in the DO-35 axial through-hole package and supports a maximum DC power dissipation of 500 mW at +50°C, with derating of 4 mW/°C above this threshold. It exhibits a low reverse leakage current of 10 µA at 25°C and 6 Vdc. The unit utilizes metallurgically bonded double plug construction to ensure stability across an operating temperature range of -65°C to +175°C.

Feature Summary

• Temperature compensated design for stable reference performance
• Metallurgically bonded double plug construction
• Extended operating temperature range up to +175°C

Applications

• Precision voltage reference circuits
• Temperature compensated regulation systems
• Low current range applications (0.5 and 1.0 mA)

Procurement Notes

Verify the specific suffix /TR indicates reel packaging configuration against official datasheets. Confirm RoHS compliance status as documentation may vary by production batch. Ensure the requested quantity aligns with manufacturer minimum order requirements for reel shipments. Cross-reference the part number with the latest revision history to confirm pinout and electrical characteristics match the design intent.

Selection Notes

Select this component when a stable 9.1 V reference is required over wide temperature variations. The DO-35 package suits through-hole designs requiring axial leads. Consider the 500 mW power rating and thermal derating curves for high-temperature environments. Verify that the ±5% tolerance meets the circuit's accuracy requirements compared to tighter tolerance alternatives.

Part Context

This part belongs to the 1N4765 series of temperature-compensated Zener diodes manufactured by Microchip Technology. These devices are engineered for applications demanding high stability and low noise. The series typically covers a range of voltages, with the 1N4765 specifically providing a 9.1 V nominal output. The technology relies on complementary doping profiles to cancel out temperature coefficients.

Replacement Considerations

Check for direct equivalents from other manufacturers offering identical 9.1 V temperature-compensated specifications in DO-35 packages. Verify that any substitute maintains the same power derating characteristics and leakage current limits.