MMSZ5248B-HE3-18

Single Zener Diodes Overview

The MMSZ5248B-HE3-18 is a silicon planar Zener diode manufactured by Vishay General Semiconductor - Diodes Division. It provides an 18 V nominal Zener voltage with a standard tolerance of ± 5 %. The device operates within a test current range of 1.7 to 20 mA and features a maximum power dissipation of 500 mW at thermal equilibrium. It is housed in the SOD-123 surface-mount package, supports an operating temperature range from -55 °C to +150 °C, and includes AEC-Q101 qualification for automotive reliability.

Single Zener Diodes Feature Summary

• AEC-Q101 qualified for automotive applications
• ESD protection exceeding 8 kV (HBM) and 800 V (MM)
• RoHS-compliant HE3_A lead-free construction

Single Zener Diodes Applications

• Automotive electronic circuits requiring robust voltage regulation
• General-purpose voltage reference and clamping applications
• Protection against electrostatic discharge events

Single Zener Diodes Procurement Notes

Verify that the ordering code matches the specific suffix requirements for your application. Confirm the presence of the HE3_A designation to ensure AEC-Q101 qualification and RoHS compliance. Cross-reference the manufacturer part number with official Vishay documentation to validate authenticity and current production status before finalizing procurement.

Single Zener Diodes Selection Notes

Select this component when an 18 V Zener voltage with ± 5 % tolerance is required in a compact SOD-123 footprint. Ensure the design accommodates the 500 mW power dissipation limit and the specified operating temperature range. Verify that the dynamic resistance and leakage current parameters meet the specific circuit requirements for noise and stability.

Single Zener Diodes Part Context

This device belongs to the MMSZ5225 to MMSZ5267 series of small signal Zener diodes. The series offers a wide Zener voltage range from 3.0 V to 75 V. The 'B' suffix indicates the standard ± 5 % voltage tolerance, while the 'HE3_A' suffix denotes the automotive-grade, lead-free variant compliant with AEC-Q101 standards.

Single Zener Diodes Replacement Considerations

MMSZ5248B-E3-18