1N5373B-AP

Overview

The 1N5373B-AP is a silicon Zener diode manufactured by Micro Commercial Components (MCC). It provides a nominal Zener voltage of 68 V with a maximum power dissipation of 5 W. The device features a ±5% voltage tolerance and operates within a junction temperature range of -50°C to 150°C. It utilizes a DO-201 axial through-hole package and exhibits a maximum Zener impedance of 44 Ohms at the test current. Reverse leakage current is specified at 500 nA when measured at 51.7 V.

Feature Summary

• Provides stable voltage regulation in the 68 V range for circuit protection and reference applications
• Supports high power dissipation up to 5 W for robust thermal performance
• Features low reverse leakage current to minimize standby power loss
• Constructed with a rugged DO-201 axial leaded package for reliable through-hole mounting

Applications

• Voltage regulation in power supply circuits
• Overvoltage protection for sensitive electronic components
• Reference voltage generation in measurement systems
• Clamping applications in transient voltage suppression circuits

Procurement Notes

Verify the specific suffix AP against the manufacturer's official datasheet to confirm packaging details and compliance status. Ensure the ordering part number matches the required tolerance and package type. Cross-reference with Diotec Semiconductor equivalents if supply constraints exist, as they share the base 1N5373B designation. Confirm RoHS and REACH compliance requirements prior to procurement.

Selection Notes

Select this component when a 68 V Zener voltage with 5 W power handling is required in an axial package. Consider the 44 Ohm impedance for dynamic regulation needs. Evaluate the operating temperature range to ensure compatibility with the environmental conditions. Compare leakage specifications against other manufacturers if ultra-low standby current is critical for the design.

Part Context

This component belongs to the standard 1N53xx series of high-power Zener diodes. It shares electrical characteristics with similar devices from other manufacturers like Diotec Semiconductor under the same base model number. The series is widely used in industrial and consumer electronics for power regulation tasks requiring through-hole assembly and high surge capability.

Replacement Considerations

The 1N5373B from Diotec Semiconductor is a parameter-equivalent alternative. Verify pinout compatibility and package dimensions before substitution. Ensure the replacement meets the same 5 W power rating and 68 V nominal voltage specifications.