ZPY9.1

Single Zener Diodes Overview

The Diotec Semiconductor ZPY9.1 is a non-planar Zener diode designed for voltage stabilization and regulation applications. It operates within the ZPY1 to ZPY200 series, utilizing Flächendiffundierte (planar diffused) technology housed in a DO-41 axial leaded package. The device features a nominal Zener voltage of 9.1 V with a standard tolerance of ±5%, adhering to the international E24 grading series. Key electrical parameters include a maximum power dissipation of 1.3 W at 50°C ambient temperature, a dynamic resistance of 2 ohms, and a maximum reverse leakage current of 3.5 µA at the rated reverse voltage. The component supports an operating junction temperature range from -50°C to +150°C.

Single Zener Diodes Feature Summary

• High power dissipation capability suitable for robust voltage regulation tasks
• Standardized voltage tolerance aligned with the international E24 series
• Compliant with RoHS directives and REACH regulations

Single Zener Diodes Applications

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

Single Zener Diodes Procurement Notes

Verify the specific ordering suffix when procuring. Standard commercial grade parts lack automotive qualifications. Suffixes such as -Q indicate AEC-Q101 compliance, while -AQ denotes AEC-Q101 qualification. Confirm these designations against project reliability requirements before finalizing orders, as they significantly impact the component's certified operational scope.

Single Zener Diodes Selection Notes

Select the ZPY9.1 based on its 9.1 V breakdown characteristic and 1.3 W thermal rating. Ensure the circuit design maintains the leads at ambient temperature within 10 mm of the case to validate the specified power dissipation limits. Consider the 2 ohm dynamic resistance for precision requirements and verify that the maximum reverse leakage current meets the system's noise floor constraints.

Single Zener Diodes Part Context

This component belongs to the ZPY1 through ZPY200 family of non-planar Zener diodes manufactured by Diotec Semiconductor. The series covers a wide voltage range from 1 V to 200 V, all sharing similar mechanical data and packaging standards. These devices are engineered for general-purpose commercial and industrial electronics, providing reliable reference voltages and protection functions in standard configurations.

Single Zener Diodes Replacement Considerations

Cross-reference other manufacturers' DO-41 Zener diodes with a 9.1 V nominal voltage, 1.3 W power rating, and ±5% tolerance. Verify that substitute components match the dynamic resistance and leakage current specifications to ensure equivalent circuit performance.