BZM55C43-TR3

Single Zener Diodes Overview

The BZM55C43-TR3 is a small signal Zener diode from the Vishay BZM55 series, housed in a MicroMELF (SOD-80) surface-mount package. It provides a nominal Zener voltage of 43 V with a tolerance range of 40 V to 46 V at a test current of 2.5 mA. The device supports a maximum power dissipation of 500 mW and operates within a junction temperature range of -65 °C to +175 °C. Key electrical characteristics include a reverse leakage current of less than 0.1 µA at 33 V and a dynamic resistance of less than 90 Ω.

Single Zener Diodes Feature Summary

• Hermetically sealed glass construction for high stability
• Very sharp reverse characteristic curve
• Low reverse leakage current level
• Low noise performance

Single Zener Diodes Applications

• Voltage stabilization circuits
• Reference voltage generation
• Overvoltage protection

Single Zener Diodes Procurement Notes

Verify the specific ordering code suffix against the manufacturer's documentation to confirm packaging details. The -TR3 designation indicates a taped reel configuration with a minimum order quantity of 10,000 units on an 8 mm tape. Confirm that the component meets the required environmental compliance standards before finalizing procurement specifications.

Single Zener Diodes Selection Notes

Select this component when a compact surface-mount solution is required for precise voltage regulation. The MicroMELF package offers space savings compared to through-hole alternatives while maintaining identical electrical data to larger packages. Ensure the application circuit can accommodate the specified test current and power dissipation limits under all operating conditions.

Single Zener Diodes Part Context

This part belongs to the BZM55 series of small signal Zener diodes manufactured by Vishay Semiconductors. The series utilizes a hermetically sealed MicroMELF package designed to save space on printed circuit boards. These devices are engineered to provide stable voltage regulation with low noise and high reliability across a wide temperature range.

Single Zener Diodes Replacement Considerations

The datasheet states that electrical data is identical to the BZT55..series and TZM..series devices. Verify pinout compatibility and package dimensions before substituting these parts in existing designs.