1N5294/TR

Overview

The Microchip Technology 1N5294/TR is a current regulator diode designed for stable current control in electronic circuits. It features a maximum regulator current of 825µA and a maximum limiting voltage of 1.2V. The device supports a peak operating voltage of 100V and dissipates up to 475mW of power. Housed in an axial DO-204AA (DO-7) package, it operates within a temperature range of -55°C to +175°C.

Feature Summary

• Provides constant current regulation with minimal variation over voltage changes
• Supports high-temperature operation suitable for demanding environments
• Utilizes a robust axial leaded package for through-hole mounting

Applications

• Constant current sources for LED driving
• Biasing networks for transistors and integrated circuits
• Protection circuits against reverse polarity conditions

Procurement Notes

Verify the specific suffix designation to ensure compatibility with required packaging formats. Confirm that the axial lead configuration aligns with the target printed circuit board layout. Validate thermal management requirements against the specified power dissipation limits during operational stress testing.

Selection Notes

Select this component when precise current regulation is required without complex feedback loops. Consider the 825µA output current as the primary design constraint. Ensure the 100V breakdown rating exceeds the maximum circuit voltage to prevent device failure under transient conditions.

Part Context

This part belongs to the 1N529x series of current regulator diodes manufactured by Microchip Technology. These devices are silicon-based junction components intended for general-purpose current stabilization. The series offers reliable performance across wide temperature ranges for industrial applications.

Replacement Considerations

Compatible substitutes include JANTX1N5294UR and 1N5294 variants from other manufacturers such as Central Semiconductor, provided electrical parameters match.