1N5309-1/TR

Overview

The Microchip Technology 1N5309-1/TR is a current regulator diode designed for stable current control in electronic circuits. It operates with a maximum voltage of 100V and provides a regulated current of 3.3mA. The device has a power dissipation rating of 500mW and is housed in a DO-204AA (DO-7) axial through-hole package. It supports an operating temperature range from -65°C to 175°C junction temperature. The component is supplied in tape and reel packaging, suitable for automated assembly processes.

Feature Summary

• Provides constant current regulation across varying load conditions
• Capable of operation in extreme temperature environments up to 175°C junction temperature
• Utilizes a robust axial leaded package for reliable through-hole mounting

Applications

• Biasing networks for transistors and integrated circuits
• Current limiting protection in sensitive electronic pathways
• Constant current sources for LED driving applications

Procurement Notes

Verify the specific suffix -1/TR against official Microchip documentation to confirm tape and reel packaging configuration. Ensure compatibility with existing PCB footprints for the DO-7 axial package. Cross-reference the manufacturer part number with authorized distributors to validate authenticity and traceability before procurement.

Selection Notes

Select this component when a fixed 3.3mA current source is required within a 100V limit. Consider the 500mW power dissipation capability relative to ambient thermal conditions. Verify that the axial through-hole form factor aligns with the mechanical constraints of the target enclosure and assembly method.

Part Context

This part belongs to the 1N53xx series of current regulator diodes manufactured by Microchip Technology. These devices are engineered to maintain a steady current flow regardless of voltage fluctuations across the device, provided the voltage remains within specified limits. The series is widely used in analog circuit design for stable biasing.

Replacement Considerations

Consult Microchip datasheets for direct equivalents within the 1N53xx series. Verify pinout compatibility and electrical parameters such as regulated current and breakdown voltage before substituting with components from other manufacturers.