1N5314-1E3

Overview

The Microchip Technology 1N5314-1E3 is a current regulator diode designed for stable current control in electronic circuits. It features a maximum regulator current of 5.17 mA and a maximum peak operating voltage of 100 V. The device has a maximum power dissipation of 500 mW and operates within a temperature range of -65 °C to +175 °C. It utilizes a DO-204AA (DO-7) axial through-hole package, ensuring compatibility with standard PCB layouts.

Feature Summary

• Maintains constant current output across varying load conditions
• Operates reliably in extreme temperature environments
• Provides high impedance regulation characteristics

Applications

• Biasing networks for transistors and integrated circuits
• LED current limiting and stabilization
• Protection circuits against overcurrent conditions

Procurement Notes

Verify the specific suffix designation when ordering, as it may indicate radiation hardness or environmental compliance variations not explicitly detailed in general catalogs. Confirm RoHS status directly with the manufacturer documentation, as historical data suggests potential non-compliance for certain variants within this series. Ensure the procurement channel provides authentic Microchip Technology components to avoid counterfeit risks.

Selection Notes

Select this component when a fixed current source is required without complex feedback loops. Compare the 5.17 mA rating against circuit requirements to ensure adequate headroom. Consider the DO-7 package size for space-constrained through-hole designs. Evaluate thermal management needs given the 500 mW power dissipation limit at elevated temperatures.

Part Context

This part belongs to the 1N531x series of current regulator diodes manufactured by Microchip Technology. These devices are commonly used in industrial and aerospace applications where reliable current control is critical. The series offers various current ratings to suit different circuit demands while maintaining consistent performance specifications.

Replacement Considerations

Direct substitutes include other 1N5314 variants from different manufacturers if pinout and electrical parameters match exactly. Verify that alternative parts meet the same -65 °C to +175 °C operating temperature range and 100 V peak voltage rating.