1N5298-1/TR

Overview

The Microchip Technology 1N5298-1/TR is a current regulator diode designed for through-hole mounting in the DO-7 (DO-204AA) axial package. It provides a maximum regulated current of 1.21 mA with a maximum voltage drop of 1.4 V across the anode-cathode terminals. The device supports a peak operating voltage of up to 100 V and dissipates a maximum power of 500 mW. It operates within a junction temperature range of -65°C to +175°C. This component is part of the JANS series, indicating qualification for specific military or high-reliability standards.

Feature Summary

• Provides stable constant current regulation suitable for biasing applications
• Capable of withstanding high reverse voltages up to 100 V
• Operates reliably across extreme temperature environments from -65°C to +175°C
• Constructed in a rugged axial leaded package for durable through-hole integration

Applications

• Biasing circuits for transistors and other semiconductor devices
• Constant current sources for LED driving or sensor powering
• Protection circuits requiring fixed current limiting
• Military and aerospace electronic systems demanding high reliability

Procurement Notes

Verify the specific suffix designation when ordering, as the base part number 1N5298-1 may exist in different packaging formats such as bulk or tape and reel. Confirm that the JANS variant meets all required environmental and quality certifications for your specific application. Ensure compatibility with existing PCB footprints for the DO-7 axial package before finalizing procurement decisions.

Selection Notes

Select this component when a precise 1.21 mA current source is required without complex circuitry. Consider the 100 V voltage rating to ensure it exceeds the maximum potential difference in your circuit. Verify that the 500 mW power dissipation capability aligns with thermal management constraints. Compare against similar current regulator diodes if alternative current levels or lower voltage ratings are acceptable for the design.

Part Context

This component belongs to the 1N5298 family of current regulator diodes manufactured by Microchip Technology. The -1 suffix typically denotes a specific performance grade or military qualification level within the product line. Related variants include the 1N5298RL/TR which shares similar electrical characteristics but differs in packaging format. These devices are commonly used in high-reliability electronics where consistent current regulation is critical.

Replacement Considerations

Direct substitutes include other 1N5298 variants from Microchip or equivalent current regulator diodes from manufacturers like Central Semiconductor or Littelfuse. Ensure replacement parts match the 1.21 mA current rating, 100 V voltage limit, and DO-7 package dimensions. Verify that any alternative component meets the same temperature and reliability standards required for the original application.