1N5288

Overview

The Microchip Technology 1N5288 is a current regulator diode designed for stable current control in electronic circuits. It operates with a maximum anode-to-cathode voltage of 100V and maintains a regulated current of 429µA. The device features a maximum limit voltage of 1.05V and supports a power dissipation of 475mW. It is housed in a DO-204AA (DO-7) axial through-hole package, suitable for robust mounting applications. The component functions within a junction temperature range of -65°C to 175°C, ensuring reliability under varying thermal conditions.

Feature Summary

• Provides constant current regulation independent of voltage fluctuations within specified limits
• Capable of operating at high junction temperatures up to 175°C for demanding environments
• Utilizes a standard axial DO-7 through-hole package for easy integration into legacy designs

Applications

• Biasing circuits for transistors and other semiconductor devices requiring stable current
• LED driver circuits where consistent current flow is critical for performance
• Protection circuits that require a fixed current reference or load

Procurement Notes

Verify the specific manufacturer lot code and date code upon receipt to ensure compliance with project timelines. Confirm that the received components match the DO-7 axial package specification. Check for any physical damage to leads before soldering. Ensure storage conditions align with the manufacturer's recommendations to prevent degradation of the semiconductor material over time.

Selection Notes

Select this component when a precise, low-current regulation value near 429µA is required without active feedback loops. Consider the 100V breakdown voltage and 475mW power rating to ensure adequate headroom for the target application. Evaluate the thermal environment to confirm the 175°C junction temperature rating meets operational safety margins. Compare against alternative current regulator diodes if tighter tolerance or different current values are needed.

Part Context

The 1N5288 belongs to the 1N5283-1N5314 series of current regulator diodes manufactured by Microchip Technology. This series offers various regulated current levels while sharing similar packaging and voltage characteristics. These devices are commonly used in analog circuit design to simplify biasing networks compared to active current sources.

Replacement Considerations

Consult the official 1N5283-1N5314 datasheet for cross-reference information. Verify electrical compatibility, specifically the regulated current and voltage ratings, before substituting with other manufacturers' parts. Ensure the replacement device fits the DO-7 axial package footprint.