BZT55B15

Single Zener Diodes Overview

The BZT55B15 is a silicon unidirectional Zener diode manufactured by Taiwan Semiconductor. It features a nominal Zener voltage of 15V with a tight tolerance of ±2%. The device is rated for a power dissipation of 0.5W and operates within a junction temperature range of -65°C to +175°C. It utilizes the QUADRO Mini-MELF (LS34) package, which corresponds to JEDEC DO-213AA, ensuring hermetic sealing in glass. Key electrical parameters include a maximum dynamic impedance of 30 Ω at the test current and a knee impedance of 110 Ω.

Single Zener Diodes Feature Summary

• Hermetically sealed glass construction in the QUADRO Mini-MELF surface-mount package
• High stability with sharp reverse characteristic and low reverse leakage current
• Corrosion-resistant external surfaces with readily solderable matte tin finish

Single Zener Diodes Applications

• Voltage stabilization circuits requiring precise regulation
• Protection against overvoltage transients in sensitive electronics
• Reference voltage sources in measurement instrumentation

Single Zener Diodes Procurement Notes

Verify the specific suffix designation when ordering, as variations such as L0 or L1 may indicate different packaging formats or minor manufacturing revisions while maintaining identical electrical specifications. Confirm RoHS compliance status and moisture sensitivity level requirements with the supplier prior to procurement to ensure compatibility with assembly processes.

Single Zener Diodes Selection Notes

Select this component for applications demanding high reliability and environmental resistance due to its hermetic glass seal. The ±2% tolerance makes it suitable for precision voltage reference tasks where standard 5% devices are insufficient. Ensure the operating environment stays within the specified temperature range to maintain performance integrity.

Single Zener Diodes Part Context

This part belongs to the BZT55B series of small signal Zener diodes from Taiwan Semiconductor. The series offers a wide selection of voltages ranging from 2.4V to 75V, all packaged in the compact LS34 form factor. This family is designed for surface-mount technology, providing a robust alternative to traditional axial-leaded components in space-constrained designs.

Single Zener Diodes Replacement Considerations

Cross-reference with Vishay BZT55-B15 or SPC Multicomp BZT55C15 if tighter tolerance is acceptable. Verify pinout orientation and package dimensions match the LS34 footprint before substitution.