1N1358

Overview

The Microchip Technology 1N1358 is a single Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 20 V and a maximum power dissipation of 10 W. The device exhibits a tolerance of ±10% and is housed in a DO-203AA (DO-4) stud mount package, suitable for high-power thermal management.

Feature Summary

• Provides stable voltage regulation at a fixed 20 V reference level
• Supports high power dissipation up to 10 W for robust operation
• Utilizes a stud mount configuration for efficient heat transfer

Applications

• High-power voltage regulation circuits
• Industrial power supply protection
• Overvoltage clamping in heavy-duty equipment

Procurement Notes

Verify the manufacturer origin, as this component has been produced by multiple entities including Microchip Technology and New Jersey Semiconductor Products. Confirm the specific datasheet version matches your design requirements. Ensure the DO-203AA package dimensions align with your mounting constraints before finalizing procurement.

Selection Notes

Select this component when a 20 V regulation point is required with significant power handling capabilities. The stud mount package necessitates appropriate thermal interface materials and mounting hardware. Consider the ±10% tolerance during circuit design to ensure compliance with system voltage limits under varying conditions.

Part Context

This part belongs to the standard Zener diode family used for voltage reference and protection. It serves as a discrete semiconductor solution for maintaining steady voltage levels in electronic systems requiring higher power thresholds than surface-mount devices can typically support.

Replacement Considerations

Equivalent parts may be available from other manufacturers producing the 1N1358 specification. Verify electrical parameters such as Zener voltage and power rating match exactly. Check mechanical compatibility of the DO-203AA package for direct replacement without redesigning the PCB or heatsink assembly.