1N5313

Overview

The Microchip Technology 1N5313 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 4.73mA. The device supports a maximum power dissipation of 500mW, ensuring reliable performance under specified load conditions. It is housed in a DO-204AA (DO-7) axial through-hole package, suitable for standard PCB mounting. The component functions within a junction temperature range of -65°C to 175°C, offering robust thermal stability for demanding environments.

Feature Summary

• Provides constant current regulation independent of voltage variations
• Operates across an extended industrial temperature range
• Utilizes a traditional axial leaded package for easy integration

Applications

• Biasing transistors and other semiconductor devices
• Current limiting in LED driver circuits
• Reference current sources in analog signal processing

Procurement Notes

Verify the specific ordering suffix to confirm package type and compliance status. The base part number refers to the axial DO-7 variant. Confirm RoHS status as military or commercial grades may differ. Check datasheet revisions for any parameter updates before finalizing design specifications.

Selection Notes

Select this component when a fixed current source is required without complex circuitry. Ensure the operating voltage remains below the 100V limit. Verify that the 500mW power rating accommodates the voltage drop across the device at the target current. Consider thermal derating if ambient temperatures approach the upper operational limit.

Part Context

This device belongs to the 1N53xx series of current regulator diodes manufactured by Microchip Technology. It serves as a solid-state alternative to Zener-based current references, offering simpler implementation. The series covers various current levels, with the 1N5313 specifically targeting the 4.73mA regulation point for general-purpose applications.

Replacement Considerations

Direct substitutes include other manufacturers' 1N5313 equivalents meeting identical electrical specifications. Verify pinout compatibility for axial packages. Cross-reference with JAN1N5313 for military-grade variants if higher reliability standards are required.