1N5299

Overview

The Microchip Technology 1N5299 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 1.32mA. The device has a maximum power dissipation of 475mW and features a limit voltage of 1.45V. It is housed in an axial DO-7 (DO-204AA) package suitable for through-hole mounting. The component functions within a temperature range of -55°C to 175°C.

Feature Summary

• Provides constant current regulation over a wide voltage range
• Offers high stability with standard tolerance levels
• Features robust axial leaded construction for reliable mounting

Applications

• Constant current sources for LED driving
• Biasing circuits for transistors and active components
• Current limiting protection in sensitive electronic paths

Procurement Notes

Verify the specific ordering suffix to confirm the exact qualification level, as the base part number may correspond to commercial or military grades. Confirm RoHS compliance status directly with the manufacturer or authorized distributor, as historical data indicates non-compliance for certain variants. Ensure the procurement channel is authorized to guarantee authenticity and traceability for critical applications.

Selection Notes

Select this component when a fixed current source is required independent of supply voltage fluctuations. Compare the 1.32mA output against circuit requirements to ensure compatibility with load impedance. Consider the 475mW power rating to verify thermal management capabilities within the intended operating environment and enclosure constraints.

Part Context

This device belongs to the 1N5283-1 through 1N5314-1 series of current regulator diodes manufactured by Microchip Technology. These parts serve as counterparts to Zener diodes, regulating current rather than voltage. The series utilizes standard axial-leaded packages, with the DO-7 option providing enhanced internal bonding for improved reliability in demanding environments.

Replacement Considerations

Direct replacements include other 1N5299 variants from different manufacturers offering identical electrical specifications. Verify pinout compatibility and package dimensions before substitution. Ensure the replacement part meets the same temperature and voltage ratings to maintain circuit integrity.