SZMMSZ5245BT3

Single Zener Diodes Overview

The onsemi SZMMSZ5245BT3 is a single-channel Zener voltage regulator diode housed in an SOD-123 surface-mount package. It features a nominal Zener voltage of 15 V with a ±5% tolerance and a maximum power dissipation rating of 500 mW on FR-4 or FR-5 boards. The device operates within a junction temperature range of -55 °C to +150 °C, includes an ESD rating of Class 3 (>16 kV) per the human body model, and utilizes a Pb-free construction.

Single Zener Diodes Feature Summary

• SZ prefix designates automotive qualification under AEC-Q101 standards and PPAP capability for unique site and control change requirements.
• SOD-123 plastic package optimized for automated board assembly and high-density applications.
• Robust electrostatic discharge protection rated at Class 3 exceeding 16 kV via the human body model.

Single Zener Diodes Applications

• Automotive electronic circuits requiring AEC-Q101 compliance
• High-density printed circuit board designs
• General-purpose medium current voltage regulation

Single Zener Diodes Procurement Notes

Verify that the specific ordering suffix BT3 corresponds to the 10,000-unit tape and reel shipping configuration as defined in the official datasheet. Confirm the presence of the SZ prefix indicates adherence to automotive quality standards and site-specific control changes. Ensure compatibility with RoHS directives and lead-free manufacturing processes before finalizing procurement orders.

Single Zener Diodes Selection Notes

Select this component when a 15 V reference is required in space-constrained surface-mount layouts. The SOD-123 form factor provides a compact alternative to larger leaded packages while maintaining a 500 mW thermal rating. Consider the AEC-Q101 qualification if the application targets automotive environments or requires strict supply chain control protocols.

Single Zener Diodes Part Context

This part belongs to the MMSZ52xxxT1G and SZMMSZ52xxxT1G series of Zener voltage regulators manufactured by onsemi. These devices are designed to offer a convenient surface-mount solution for voltage regulation tasks across a wide reverse voltage range from 2.4 V to 110 V.

Single Zener Diodes Replacement Considerations

Cross-reference with MMSZ5245BT3G for standard commercial grade equivalents. Verify pinout compatibility and thermal characteristics against Vishay MMSZ5245B-E3-18 or similar SOD-123 Zener diodes if sourcing from alternate manufacturers.

Single Zener Diodes FAQ

What does the 'SZ' prefix indicate for this component?

The 'SZ' prefix signifies that the device is qualified to AEC-Q101 standards and is capable of PPAP submission, making it suitable for automotive and other applications requiring unique site and control change requirements.

How is the cathode identified on the SOD-123 package?

The cathode is indicated by a polarity band visible on the exterior of the plastic case.