1N5298-1

Overview

The Microchip Technology 1N5298-1 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 1.21 mA with a maximum voltage rating of 100 V between anode and cathode. The device has a maximum power dissipation of 500 mW and operates within a junction temperature range of -65°C to +175°C. The regulator maintains stable current over a broad voltage range, serving as a counterpart to Zener diodes which regulate voltage.

Feature Summary

• Provides constant current regulation across a wide voltage span
• Utilizes double-plug internal bond connection for structural integrity
• Features a larger active die element optimized for current limiting functions

Applications

• Current limiting circuits requiring stable operation over varying voltages
• Biasing networks for transistors and other semiconductor devices
• Replacement or counterpart solutions to Zener-based voltage regulation designs

Procurement Notes

Verify component authenticity by checking manufacturer markings against official datasheet specifications. Confirm package type is DO-7 and electrical parameters match 1.21 mA regulation. Ensure compliance with project requirements regarding non-RoHS status if applicable. Review Product Change Notifications for any recent assembly site or labeling updates before procurement.

Selection Notes

Select this component when a fixed current source is required rather than a fixed voltage reference. The 1.21 mA value suits low-power biasing applications. Consider the 100 V breakdown limit for circuit design headroom. The DO-7 package allows for standard through-hole PCB assembly techniques suitable for high-reliability environments.

Part Context

This part belongs to the 1N5283-1 through 1N5314-1 series of 0.5 watt current regulators produced by Microchip Technology. The series offers various current values from 0.22 mA to 4.7 mA in standard 10% tolerances. These devices are commonly used in military and industrial applications where reliable current regulation is critical.

Replacement Considerations

Compatible substitutes include other parts from the 1N5283-1 to 1N5314-1 series that offer similar 500 mW power ratings and axial packaging. Verify that alternative components maintain the 1.21 mA nominal current and 100 V maximum voltage specifications to ensure circuit compatibility.