1N5381B

Overview

The Diotec Semiconductor 1N5381B is a non-planar silicon Zener diode designed for voltage stabilization and regulation. It features a nominal Zener voltage of 130 V with a standard tolerance of ±5%. The device supports a maximum power dissipation of 5 W at an ambient temperature of 50°C, utilizing the DO-201 axial leaded package. Key electrical characteristics include a test current of 10 mA, a dynamic resistance of 190 Ohms, and a reverse leakage current of 0.5 µA at 98.8 V. It operates within a junction temperature range of -50°C to +150°C.

Feature Summary

• High power dissipation capability up to 5 W in a robust DO-201 axial package
• Non-planar technology providing stable voltage regulation across a wide operating range
• Compliant with RoHS directives (excluding exemption 7a-I) and REACH regulations

Applications

• Voltage stabilization circuits
• Linear voltage regulators
• Overvoltage protection interfaces

Procurement Notes

Verify that the specific part number matches the required voltage tolerance and package type. Confirm compliance requirements such as RoHS or AEC-Q101 if applicable, noting that standard versions do not carry automotive suffixes. Ensure thermal management aligns with the specified derating curves for continuous operation.

Selection Notes

Select this component when a high-voltage reference near 130 V is required with moderate power handling. Consider the dynamic impedance and test current specifications to ensure compatibility with the circuit's biasing network. Verify that the DO-201 form factor fits the mechanical constraints of the target assembly.

Part Context

This device belongs to the 1N5345B through 1N5388B series of non-planar Zener diodes manufactured by Diotec Semiconductor. The series covers a broad voltage spectrum from 8.7 V to 200 V, all sharing the same 5 W power rating and DO-201 package style. This specific model represents the higher voltage end of the standard commercial grade lineup.

Replacement Considerations

Cross-reference with other manufacturers' 1N5381 equivalents. Verify that substitute parts match the 130 V nominal voltage, 5 W power rating, and DO-201 package dimensions to ensure direct fitment without circuit modification.