MMSZ5242C-E3-08

Single Zener Diodes Overview

The MMSZ5242C-E3-08 is a silicon planar Zener diode manufactured by Vishay General Semiconductor - Diodes Division. It provides a nominal Zener voltage of 12 V with a tight tolerance of ±2 %. The device operates at a test current of 20 mA and dissipates up to 500 mW in the SOD-123 surface-mount package. Electrical characteristics include a maximum dynamic resistance of 30 Ω and a reverse leakage current of 1 µA at 9.1 V. The component 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 ESD protection capability exceeding 8 kV via human body model standards.
• RoHS-compliant commercial grade construction without halogenated flame retardants.

Single Zener Diodes Applications

• Precision voltage reference circuits
• Overvoltage protection for sensitive electronic components
• Clamping applications in signal processing paths

Single Zener Diodes Procurement Notes

Verify that the specific ordering code matches the required ±2 % tolerance suffix 'C'. Confirm RoHS compliance status aligns with project environmental requirements. Ensure the SOD-123 footprint dimensions are compatible with the intended PCB layout before finalizing procurement orders.

Single Zener Diodes Selection Notes

Select this component when strict voltage accuracy is critical compared to standard ±5 % variants. Evaluate thermal management needs as power dissipation decreases significantly above ambient temperatures. Consider the low reverse leakage current for high-impedance circuit designs requiring minimal standby power consumption.

Single Zener Diodes Part Context

This part belongs to the MMSZ5225 to MMSZ5267 series of small signal Zener diodes. The series covers a wide voltage range from 3.0 V to 75 V. All devices share the same SOD-123 package and utilize silicon planar technology for consistent manufacturing quality and reliability across the product line.

Single Zener Diodes Replacement Considerations

MMSZ5242B-E3-08 offers identical electrical parameters but features a wider ±5 % voltage tolerance instead of the tighter ±2 % specification found in the C variant.

Single Zener Diodes FAQ

What is the maximum dynamic impedance specified for this device?

The datasheet specifies a maximum dynamic impedance (ZZ) of 30 Ω at the test current of 20 mA.

Does this component meet automotive qualification standards?

No, the base P/N-E3 designation indicates a commercial grade product. Automotive qualification requires the HE3_A suffix.