1N5371B

Overview

The Diotec Semiconductor 1N5371B is a non-planar silicon Zener diode designed for voltage regulation applications. It features a DO-201 axial leaded package and supports a maximum power dissipation of 5 W at 50°C ambient temperature. The nominal Zener voltage is 60 V with a standard tolerance of ±5%. Key electrical characteristics include a test current of 20 mA, a dynamic resistance of 40 Ohms, and a reverse leakage current of 500 nA at 45.5 V. The device operates within a junction temperature range of -50°C to +150°C.

Feature Summary

• High power dissipation capability up to 5 W in a compact axial leaded package
• Non-planar technology providing stable voltage regulation across the operating range
• Compliant with RoHS directives and REACH regulations

Applications

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

Procurement Notes

Verify that the specific part number matches the required voltage rating and tolerance grade. Confirm compliance requirements such as RoHS or AEC-Q101 if applicable, noting that standard versions do not carry automotive suffixes. Ensure thermal management design accounts for the specified derating curves above 50°C ambient temperature.

Selection Notes

Select this component when a 60 V reference or clamp is needed with moderate power handling. Consider the 40 Ohm dynamic resistance for ripple rejection requirements. Verify that the DO-201 package dimensions fit the PCB layout constraints and that the leads can be maintained at ambient temperature for accurate power ratings.

Part Context

This component belongs to the 1N5345B through 1N5388B series of high-power Zener diodes from Diotec Semiconductor. The series covers a wide voltage range from 8.7 V to 200 V, all sharing the same 5 W power rating and DO-201 mechanical form factor. The 'B' suffix indicates the standard E24 voltage tolerance grading.

Replacement Considerations

Cross-reference with other manufacturers offering 1N5371 equivalents in DO-201 packages. Verify that substitute parts match the 60 V nominal voltage, 5 W power rating, and ±5% tolerance. Check dynamic resistance and leakage current specifications to ensure circuit performance parity.