1N5387B

Overview

The 1N5387B is a non-planar silicon Zener diode manufactured by Diotec Semiconductor, designed for high-power applications within the 1N5345B to 1N5388B series. It features a DO-201 axial leaded package and provides a nominal Zener voltage of 190 V with a standard tolerance of ±5%. The device supports a maximum power dissipation of 5 W at an ambient temperature of 50°C and can handle a non-repetitive peak surge power of 80 W. Electrical characteristics include a test current of 5 mA, a dynamic resistance of 450 Ohms, and a reverse leakage current of 0.5 µA at 1850 V. The component operates reliably within a junction temperature range of -50°C to +150°C.

Feature Summary

• High power dissipation capability up to 5 W in a plastic encapsulated DO-201 case
• Voltage stabilization and regulation functionality across a wide range up to 200 V
• Compliant with RoHS directives and REACH regulations

Applications

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

Procurement Notes

Verify that the specific part number matches the required electrical parameters, particularly the 190 V Zener voltage and 5 W power rating. Confirm compliance requirements such as RoHS status if applicable to the target market. Ensure the procurement channel sources genuine components from authorized distributors or directly from Diotec Semiconductor to guarantee authenticity and traceability.

Selection Notes

Select this component when a robust, through-hole Zener diode is needed for moderate-to-high voltage regulation tasks. The DO-201 package offers superior thermal performance compared to smaller surface-mount alternatives. Consider the ±5% tolerance and the specific dynamic resistance values when designing precision reference circuits or clamp networks.

Part Context

This component belongs to the 1N5345B through 1N5388B series of non-planar Zener diodes produced by Diotec Semiconductor. The series covers a broad spectrum of breakdown voltages from 8.7 V to 200 V, all sharing the same 5 W power dissipation rating and DO-201 mechanical footprint. This allows for standardized board layouts across various voltage requirements within industrial and commercial designs.

Replacement Considerations

Cross-reference with other manufacturers' JEDEC registered 1N53xxB series parts. Verify equivalent power ratings, voltage tolerances, and package dimensions before substitution.