2N5388

Overview

The Microchip Technology 2N5388 is a high-voltage Zener diode designed for through-hole mounting in the T-18-2 package. It provides a nominal Zener voltage of 200 V with a tolerance of 20%. The device handles a power dissipation of 5 W and operates within a temperature range of -65 °C to +150 °C. Key electrical characteristics include a maximum reverse leakage current of 500 nA, a Zener impedance of 480 Ohms, and a test current of 5 mA.

Feature Summary

• High-voltage regulation capability at 200 V
• Robust thermal performance with 5 W power dissipation
• Wide operating temperature range from -65 °C to +150 °C

Applications

• High-voltage power supply regulation
• Overvoltage protection circuits
• Voltage reference applications requiring high stability

Procurement Notes

Verify component authenticity and datasheet alignment before integration. Confirm RoHS compliance status as indicated in official documentation. Check for obsolescence notices or lifecycle changes. Ensure packaging specifications match assembly requirements. Validate thermal management capabilities against system constraints.

Selection Notes

Select this component for applications requiring precise high-voltage clamping. Consider the 20% voltage tolerance when designing tight regulation loops. Evaluate the T-18-2 package size for PCB layout constraints. Assess thermal resistance to ensure adequate heat dissipation at full load.

Part Context

This part belongs to Microchip's discrete semiconductor portfolio, specifically within the Zener diode category. It serves as a reliable solution for industrial and commercial electronics needing stable high-voltage references. The through-hole construction supports robust mechanical connections in demanding environments.

Replacement Considerations

Consult official substitution guides for compatible alternatives. Verify pinout compatibility and electrical parameter overlaps. Ensure replacement parts meet the same thermal and voltage ratings.