ZMD27B

Single Zener Diodes Overview

The ZMD27B is a surface-mount non-planar Zener diode manufactured by Diotec Semiconductor. It operates within the DO-213AA (Plastic MiniMELF) package and provides a nominal Zener voltage of 27 V with a tight tolerance of approximately ±2%. The device features a maximum power dissipation of 1 W at 25°C, which decreases linearly to zero at an ambient temperature of 150°C. It supports a junction temperature range from -50°C to +175°C and includes a typical dynamic resistance of 30 Ω measured at a test current of 5 mA.

Single Zener Diodes Feature Summary

• Specially selected for high precision with a tight ±2% voltage tolerance
• Capable of handling high power dissipation up to 1 W in a compact SMD form factor
• Utilizes robust non-planar technology for reliable performance

Single Zener Diodes Applications

• Voltage stabilization circuits
• Precision voltage regulators
• Overvoltage protection applications

Single Zener Diodes Procurement Notes

Verify that the specific part number matches the required tolerance grade, as the 'B' suffix indicates the specialized ±2% selection. Confirm compliance requirements such as RoHS and REACH status directly with the manufacturer or authorized distributors before finalizing procurement plans.

Single Zener Diodes Selection Notes

Select this component when circuit designs demand tighter voltage accuracy than standard commercial grades provide. Ensure the thermal design accommodates the 1 W power rating and consider derating factors if the operating ambient temperature exceeds 25°C.

Single Zener Diodes Part Context

This component belongs to the ZMD10B through ZMD100B series of SMD Zener diodes. The series utilizes non-planar technology and is housed in the DO-213AA case outline. While the base series covers a wide voltage range, the ZMD27B specifically addresses the need for precise regulation around the 27-volt threshold.

Single Zener Diodes Replacement Considerations

Standard Zener diodes in the DO-213AA package may serve as physical replacements, but they typically lack the ±2% tolerance. Verify that any substitute meets the specific electrical characteristics required for the application.