MMSZ5256C-E3-18

Single Zener Diodes Overview

The MMSZ5256C-E3-18 is a silicon planar Zener diode manufactured by Vishay Semiconductors. It provides a nominal Zener voltage of 30 V with a tight tolerance of ±2%. The device operates within a power dissipation range up to 500 mW and features a maximum reverse leakage current of 100 nA at 23 V. Its dynamic resistance is specified at 49 Ohms, with a temperature coefficient of 0.092 %/°C. Designed for surface-mount applications, it utilizes the SOD-123 package and supports an operating temperature range from -55 °C to +150 °C.

Single Zener Diodes Feature Summary

• High precision voltage regulation achieved through a ±2% Zener voltage tolerance
• Robust thermal management capabilities supporting operation up to 150 °C junction temperature
• Low leakage current characteristics ensuring minimal power loss in standby states
• ESD protection capability exceeding 8 kV according to Human Body Model standards

Single Zener Diodes Applications

• Precision voltage reference circuits requiring stable DC levels
• Overvoltage protection stages in sensitive electronic equipment
• Clamping applications in signal processing pathways
• Power supply regulation modules utilizing surface-mount assembly

Single Zener Diodes Procurement Notes

Verify component authenticity by cross-referencing the manufacturer part number against official Vishay documentation. Confirm RoHS compliance status and ensure the ordering suffix matches the required tape-and-reel specifications. Validate that the received units correspond to the specific ±2% tolerance grade designated by the 'C' suffix before integration into production lines.

Single Zener Diodes Selection Notes

Select this component when circuit designs demand strict voltage accuracy within a compact footprint. The SOD-123 package facilitates automated surface-mount placement while maintaining adequate thermal dissipation for moderate power loads. Consider the specific temperature coefficient and dynamic resistance values to ensure compatibility with the target application's stability requirements under varying environmental conditions.

Single Zener Diodes Part Context

This device belongs to the MMSZ5225 to MMSZ5267 series of small signal Zener diodes. The series offers a broad spectrum of nominal voltages ranging from 3.0 V to 75 V. The 'C' suffix specifically denotes the tighter ±2% tolerance variant, distinguishing it from standard commercial grade devices which typically feature ±5% tolerance. All variants share identical physical packaging and thermal characteristics.

Single Zener Diodes Replacement Considerations

MMSZ5256B-E3-18

Single Zener Diodes FAQ

What is the significance of the 'C' suffix in the part number?

The 'C' suffix indicates that the Zener voltage tolerance is ±2%, providing higher precision compared to the standard ±5% tolerance found in parts with a 'B' suffix.

How does the device handle electrostatic discharge?

The diode possesses ESD capability according to AEC-Q101 standards, offering protection greater than 8 kV via the Human Body Model and greater than 800 V via the Machine Model.