ZPY27

Single Zener Diodes Overview

The ZPY27 is a non-planar Zener diode manufactured by Diotec Semiconductor, designed for voltage stabilization and regulation applications. It features a DO-41 (DO-204AC) axial leaded package with a maximum power dissipation of 1.3 W at 50°C ambient temperature. The nominal Zener voltage is 27 V, with a tolerance range of 25.1 V to 28.9 V based on the E24 standard. Key electrical characteristics include a test current of 25 mA, a dynamic resistance of 7 Ohms, and a maximum reverse leakage current of 20 µA at the rated reverse voltage. The device supports an operating junction temperature up to 150°C and a storage temperature range from -50°C to +175°C.

Single Zener Diodes Feature Summary

• High power dissipation capability of 1.3 W in a robust DO-41 axial package.
• Non-planar technology providing stable voltage regulation across a wide temperature range.
• Compliant with RoHS directives and REACH regulations for environmental safety.

Single Zener Diodes Applications

• Voltage stabilization circuits
• Linear voltage regulators
• Overvoltage protection

Single Zener Diodes Procurement Notes

Verify the specific ordering suffix when purchasing. Standard commercial grade parts do not include automotive qualifications. Suffixes such as -Q indicate AEC-Q101 compliance, while -AQ denotes AEC-Q101 qualification. Confirm that the required reliability grade matches the application environment before finalizing procurement orders.

Single Zener Diodes Selection Notes

Select the ZPY27 for applications requiring a 27 V reference with moderate power handling. Ensure the circuit design accounts for the 1.3 W thermal limit at 50°C ambient conditions. Consider the 7 Ohm dynamic resistance for precision requirements. Verify if automotive-grade variants are necessary for vehicle electronics to meet specific industry standards.

Single Zener Diodes Part Context

The ZPY27 belongs to the ZPY1...ZPY200 series of flächendiffundierte (area-diffused) Zener diodes. This family covers a voltage range from 1 V to 200 V, offering standardized E24 tolerance grades. The series utilizes non-planar silicon technology, distinguishing it from modern planar structures, and is housed in the traditional DO-41 axial case suitable for through-hole mounting.

Single Zener Diodes Replacement Considerations

Direct replacements must match the 27 V nominal voltage, 1.3 W power rating, and DO-41 package dimensions. Verify dynamic resistance and leakage current specifications against the original design requirements to ensure equivalent performance in the target circuit.