1N5385B

Overview

The Diotec Semiconductor 1N5385B is a non-planar silicon Zener diode designed for voltage stabilization and regulation. It features a nominal Zener voltage of 170 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. Operating within a junction temperature range of -50°C to +150°C, it utilizes the DO-201 axial leaded package.

Feature Summary

• High power dissipation capability suitable for robust voltage regulation applications
• Non-planar technology construction ensuring stable performance across wide operating ranges
• Compliant with RoHS directives and REACH regulations for environmental safety

Applications

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

Procurement Notes

Verify that the specific part number matches the required electrical characteristics, particularly the 170 V Zener voltage and 5 W power rating. Confirm compliance with relevant environmental standards such as RoHS and REACH if mandated by project specifications. Ensure the DO-201 through-hole package aligns with the intended PCB layout and assembly processes before finalizing procurement orders.

Selection Notes

Select this component when a high-voltage Zener reference or clamp is required in a through-hole design. The 170 V rating makes it suitable for higher voltage rails where lower voltage alternatives are insufficient. Consider the thermal resistance and derating curves for ambient temperatures exceeding 50°C to ensure reliable operation under continuous load conditions without exceeding the maximum junction temperature limits.

Part Context

This component belongs to the 1N5345B through 1N5388B series of Zener diodes manufactured by Diotec Semiconductor. The series covers a broad voltage range from 8.7 V to 200 V, all sharing the same 5 W power dissipation rating and DO-201 package style. This family provides standardized options for various industrial and commercial voltage regulation needs.

Replacement Considerations

Cross-reference with other manufacturers offering 1N5385 equivalents. Verify that any substitute maintains the 170 V nominal voltage, ±5% tolerance, and 5 W power rating. Ensure the replacement package is compatible with existing footprints and soldering profiles.