TZQ5253B-GS18

Single Zener Diodes Overview

The TZQ5253B-GS18 is a single Zener diode from Vishay Semiconductors, featuring a nominal voltage of 25 V with a ±5% tolerance. It operates within a power dissipation range of 500 mW and utilizes the QuadroMELF (SOD-80) surface-mount package. The device exhibits a maximum dynamic resistance of 35 Ω at a test current of 5 mA, alongside a reverse leakage current below 0.1 μA at 19 V. Its temperature coefficient is +0.089 %/K, supporting stable performance across an operating junction temperature range up to 175 °C.

Single Zener Diodes Feature Summary

• Very sharp reverse characteristic for precise regulation
• Low reverse current level ensuring minimal leakage
• Very high stability under varying thermal conditions
• Low noise operation suitable for sensitive circuits

Single Zener Diodes Applications

• Voltage stabilization in electronic circuits
• Reference voltage generation
• Overvoltage protection

Single Zener Diodes Procurement Notes

Verify the specific GS18 suffix indicates taped units per reel configuration before procurement. Confirm that the QuadroMELF SOD-80 package dimensions align with the target PCB footprint. Ensure compliance with RoHS directives as specified in the material categorization documentation. Validate thermal equilibrium measurement conditions during testing.

Single Zener Diodes Selection Notes

Select this component when a 25 V reference with tight tolerance is required. Consider the low leakage current for high-impedance applications. Evaluate the thermal impedance characteristics against the expected ambient temperature profile. Verify compatibility with standard reflow soldering profiles for the SOD-80 package.

Single Zener Diodes Part Context

This part belongs to the TZQ5221B to TZQ5267B series of small signal Zener diodes manufactured by Vishay Semiconductors. The series covers a wide voltage range from 2.4 V to 75 V, offering various test currents and tolerances. The QuadroMELF packaging provides a compact solution for surface-mount technology applications requiring reliable voltage regulation.

Single Zener Diodes Replacement Considerations

Direct substitutes within the same Vishay series include parts with identical voltage ratings but different tolerance grades or packaging options. Cross-manufacturer replacements must match the 25 V nominal voltage, 500 mW power rating, and SOD-80 package dimensions. Verify electrical parameters such as dynamic resistance and leakage current to ensure functional equivalence.