SM15T33AY - STMicroelectronics

Manufacturer Part Number

SM15T33AY

Manufacturer

STMicroelectronics

Introduction

The SM15T33AY is part of STMicroelectronics' TRANSIL™ series. It is designed to protect sensitive automotive circuits from voltage transients induced by system inductance, load dump, and other transient events.

Product Features and Performance

Zener type TVS diode for transient voltage suppression

Unidirectional protection for one line

Standoff voltage of 28.2V with a minimum breakdown voltage of 31.4V

Clamping voltage up to 59V at 169A peak pulse current

Peak pulse power of 1500W for 10/1000µs waveform

Operating temperature range from -40°C to 150°C

Product Advantages

Provides efficient protection against voltage spikes

AEC-Q101 qualified, suitable for automotive applications

Minimal changes in clamping voltage over the pulse current range

High reliability and performance stability under severe operating conditions

Key Technical Parameters

Voltage Reverse Standoff (Typ): 28.2V

Voltage Breakdown (Min): 31.4V

Voltage Clamping (Max) @ Ipp: 59V

Current Peak Pulse (10/1000µs): 169A

Power Peak Pulse: 1500W (1.5kW)

Operating Temperature: -40°C ~ 150°C (TJ)

Quality and Safety Features

AEC-Q101 qualified for high reliability in automotive environments

Robust construction for long-term reliability

Compatibility

Surface Mount (SMC) package for easy integration

Unidirectional design for specific circuit protection configurations

Application Areas

Automotive electronic protection

Precision electronics protection in harsh environments

Product Lifecycle

Current status: Active

Continuously supported with no near-term discontinuation expected. Options for replacement or upgrades available if technology evolves.

Several Key Reasons to Choose This Product

High power and current handling capabilities for effective transient voltage suppression

Automotive-grade quality ensures reliability under the rigorous conditions of automotive applications

Wide operating temperature range suitable for demanding environments

Surface mount package aligns with modern automated manufacturing processes

AEC-Q101 qualification assures compliance with automotive industry standards