ZPY91-TAP

Single Zener Diodes Overview

The ZPY91-TAP is a silicon planar power Zener diode manufactured by Vishay Semiconductors. It features a nominal Zener voltage of 91 V with a tolerance of 5%. The device is rated for a maximum power dissipation of 1.3 W and operates within a junction temperature range of -55 °C to +175 °C. Packaged in the DO-41 axial leaded format, it exhibits a Zener impedance of 250 Ohms at a test current of 5 mA. This component utilizes a single configuration designed for through-hole mounting applications.

Single Zener Diodes Feature Summary

• Features very sharp reverse characteristic curves typical of siliconic planar technology
• Provides very high stability for consistent voltage regulation performance
• Maintains low reverse current levels to minimize leakage effects

Single Zener Diodes Applications

• Voltage reference circuits requiring stable DC potentials
• Overvoltage protection stages in electronic systems
• General-purpose clipping and clamping applications

Single Zener Diodes Procurement Notes

Verify the specific suffix designation carefully during procurement. The TAP suffix indicates tape-and-reel packaging, which differs from bulk or cut-tape formats. Confirm that the required quantity aligns with standard reel sizes to avoid partial reel handling issues. Ensure the component meets all necessary environmental compliance standards for the intended deployment environment before finalizing orders.

Single Zener Diodes Selection Notes

Select this component when a robust 91 V regulation point is needed in a through-hole assembly. The 1.3 W power rating supports moderate current loads compared to smaller signal variants. Verify that the circuit design accommodates the 250 Ohm dynamic impedance to ensure adequate noise performance. Consider thermal management requirements given the high operating temperature limit of the package.

Single Zener Diodes Part Context

This part belongs to the ZPY series of small-signal Zener diodes produced by Vishay. These devices are engineered for general-purpose voltage regulation tasks where reliability is paramount. The series offers various voltage options within the DO-41 package, providing designers with standardized form factors for prototyping and production electronics across industrial and consumer sectors.

Single Zener Diodes Replacement Considerations

The 1N984B is a documented equivalent offering similar electrical characteristics. Verify pinout compatibility and thermal resistance values when substituting. Ensure the replacement part meets the same voltage tolerance and power dissipation requirements as the original specification.