1N5388B

Overview

The Diotec Semiconductor 1N5388B is a single silicon Zener diode utilizing non-planar technology, housed in the DO-201 axial leaded package. It provides a nominal Zener voltage of 200 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 withstands a non-repetitive peak surge current of up to 80 W for pulses under 8.3 ms. Operating junction temperatures range from -50°C to +150°C, while storage temperatures extend from -50°C to +175°C.

Feature Summary

• High power dissipation capability suitable for robust voltage regulation applications
• Glass passivated junction integrated within a molded plastic case rated UL 94V-0
• Compliant with RoHS directives and REACH regulations

Applications

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

Procurement Notes

Verify that the specific order matches the Diotec Semiconductor manufacturer part number 1N5388B. Confirm compliance requirements such as RoHS status and ensure the package type aligns with DO-201 through-hole mounting standards. Check for suffixes like -Q or -AQ if automotive qualification is required, as these denote AEC-Q101 compliance or qualification respectively.

Selection Notes

Select this component when a stable 200 V reference is needed in high-power environments. Ensure the circuit design accommodates the 5 W thermal dissipation limits by maintaining appropriate lead lengths and ambient cooling. Verify that the dynamic impedance characteristics meet the precision requirements of the target application.

Part Context

This component belongs to the 1N5345B through 1N5388B series of Zener diodes manufactured by 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 package form factor. These devices are designed for commercial and industrial grade applications requiring reliable voltage clamping.

Replacement Considerations

Cross-reference with other manufacturers offering the 1N5388B designation. Verify that any substitute maintains the 200 V Zener voltage, 5 W power rating, and DO-201 package dimensions to ensure mechanical and electrical compatibility.