1N5377B

Overview

The Diotec Semiconductor 1N5377B is a non-planar Zener diode designed for voltage stabilization and regulation. It features a DO-201 axial through-hole package with a maximum power dissipation of 5 W at 50°C ambient temperature. The nominal Zener voltage is 91 V with a standard tolerance of ±5%. Key electrical characteristics include a test current of 15 mA, a dynamic resistance of 75 Ohms at the test current, and a reverse leakage current of less than 69.2 µA at 760 V reverse voltage. The device supports an operating junction temperature range from -50°C to +150°C.

Feature Summary

• High power dissipation capability up to 5 W in a rugged DO-201 case
• Non-planar technology providing stable voltage regulation across a wide range
• Compliant with RoHS directives and REACH regulations

Applications

• Voltage stabilization circuits
• Linear voltage regulators
• Overvoltage protection (uni-directional)

Procurement Notes

Verify that the specific order matches the 1N5377B designation within the 1N5345B...1N5388B series. Confirm compliance requirements such as AEC-Q101 if automotive grade is needed, which requires the -Q suffix. Ensure thermal management aligns with the specified 5 W rating at 50°C ambient temperature.

Selection Notes

Select this component when a 91 V reference or clamp is required in high-power applications. The DO-201 package allows for robust lead-frame mounting suitable for industrial environments. Consider the 75 Ohm dynamic resistance for circuit impedance matching. Verify that the 5 W continuous dissipation meets the thermal design constraints of the target enclosure.

Part Context

This part belongs to the 1N5345B through 1N5388B family of 5 W Zener diodes manufactured by Diotec Semiconductor. The series utilizes non-planar technology and covers a broad voltage range from 8.7 V to 200 V. All variants share the same DO-201 mechanical outline and general thermal characteristics, differing primarily in their specific Zener voltage ratings and associated test currents.

Replacement Considerations

Cross-reference with other manufacturers' 1N5377B equivalents. Verify that substitute parts maintain the 91 V nominal voltage, 5 W power rating, and DO-201 package dimensions to ensure mechanical and electrical compatibility.