1N5519

Overview

The Microchip Technology 1N5519 is a Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 3.6 V with a 5% tolerance, tested at a current of 20 mA. The device dissipates up to 500 mW and operates within a temperature range of -65 °C to +175 °C. Packaged in the DO-35 axial leaded format, it exhibits a maximum reverse leakage current of 3 µA and a Zener impedance of 24 Ω.

Feature Summary

• Provides stable voltage regulation through controlled Zener breakdown characteristics
• Capable of operation across an extended industrial temperature range
• Utilizes a standard axial leaded package for through-hole mounting

Applications

• Voltage reference circuits
• Overvoltage protection stages
• Biasing networks in analog electronics

Procurement Notes

Verify the specific suffix (e.g., B) against datasheet requirements to ensure correct voltage tolerance. Confirm RoHS compliance status as indicated by manufacturer markings. Validate package dimensions against PCB footprint specifications before integration into final assembly designs.

Selection Notes

Select this component when a precise 3.6 V reference is required in a through-hole configuration. Ensure the circuit design accommodates the specified 500 mW power dissipation limit. Verify that the operating environment remains within the stated -65 °C to +175 °C thermal boundaries for reliable performance.

Part Context

This part belongs to the standard Zener diode family manufactured by Microchip Technology. It serves as a fundamental passive component for establishing fixed potential levels in electronic systems. The DO-35 package represents a traditional form factor widely used in legacy and robust industrial equipment designs.

Replacement Considerations

Cross-reference with JAN1N5519B-1 for military-grade equivalents. Verify pinout compatibility and thermal characteristics when substituting with other 3.6 V Zener diodes from different manufacturers.