1N5381B-TP

Overview

The MCC 1N5381B-TP is a 5-watt Zener diode with a nominal voltage of 130 V and ±5% tolerance. It operates in the DO-15 axial leaded package, supporting junction temperatures from -55°C to +200°C. Key electrical parameters include a maximum dynamic impedance of 190 Ohms at 10 mA test current, a reverse leakage current of 0.5 µA at 98.8 V, and a maximum regulator current of 36.6 mA. The device features a maximum forward voltage of 1.2 V at 1 A and offers high surge current capability for robust circuit protection.

Feature Summary

• Provides stable voltage regulation across broad operating current and temperature ranges
• Features low thermal resistance design suitable for high DC currents with adequate heat sinking
• Epoxy encapsulation meets UL 94 V-0 flammability rating

Applications

• Voltage regulation in power supply circuits
• Overvoltage protection for sensitive electronic components
• Reference voltage generation in measurement equipment

Procurement Notes

Verify compliance with RoHS directives and confirm halogen-free status if required by adding the -HF suffix. Ensure ordering specifications match the desired packaging format, such as tape and reel or bulk boxes. Confirm that the component is sourced from authorized distributors to guarantee authenticity and full traceability according to manufacturer quality standards.

Selection Notes

Select this component for applications requiring 130 V regulation with 5 W power dissipation capabilities. Consider the ±5% voltage tolerance and 190 Ohm dynamic impedance for precision requirements. Evaluate thermal management needs based on the specified junction-to-ambient thermal resistance and derating curves for continuous operation above 75°C.

Part Context

This part belongs to the JEDEC registered 1N5338B through 1N5388B series of axial-leaded 5.0 watt Zener diodes. The series provides a wide selection of voltages from 5.1 V to 200 V with various tolerance options identified by specific suffix letters. These plastic encapsulated devices are designed for general-purpose voltage regulation and protection tasks.

Replacement Considerations

Compatible substitutes within the same series include 1N5380B (120 V) and 1N5382B (140 V). Verify that replacement parts maintain equivalent power ratings, package types, and voltage tolerances to ensure circuit compatibility without redesigning thermal or regulatory constraints.