1N5299E3

Overview

The Microchip Technology 1N5299E3 is a current regulator diode designed for through-hole mounting in the DO-7 (DO-204AA) axial leaded package. It provides a regulated current of 1.32 mA with a maximum voltage rating of 100 V and a power dissipation capacity of 475 mW. The device operates within a temperature range of -55°C to +175°C and features a maximum voltage drop of 1.45 V. This component serves as a stable constant current source for electronic circuits requiring precise current limiting.

Feature Summary

• Provides stable constant current regulation without external components
• Operates reliably across an extended industrial temperature range up to 175°C
• Supports high reverse voltage applications with a 100 V maximum rating

Applications

• Constant current sources for LED driving circuits
• Biasing elements for transistor amplifier stages
• Current limiting protection in sensitive electronic loads

Procurement Notes

Verify the specific E3 suffix indicates RoHS compliance when sourcing. Confirm the DO-7 package dimensions match your PCB footprint requirements. Ensure the 1.32 mA output current aligns with your circuit design constraints before finalizing procurement orders.

Selection Notes

Select this component when a fixed 1.32 mA current is required. Verify that the 100 V breakdown voltage exceeds your circuit's maximum operating voltage. Consider the 475 mW power dissipation limit to ensure thermal stability under all expected load conditions.

Part Context

This part belongs to the 1N5283-1N5314 series of current regulator diodes manufactured by Microchip Technology. These devices are standardized axial leaded components used for simple, cost-effective current regulation in discrete semiconductor applications.

Replacement Considerations

Check datasheets for equivalent current regulator diodes offering 1.32 mA at 100 V. Verify pinout compatibility and thermal characteristics before substituting with parts from other manufacturers.