SMCJ33A-TR - STMicroelectronics

Manufacturer Part Number

SMCJ33A-TR

Manufacturer

STMicroelectronics

Introduction

The SMCJ33A-TR is a unidirectional TVS (Transient Voltage Suppressor) diode designed to protect sensitive electronics from voltage transients induced by system inductance and lightning.

Product Features and Performance

Unidirectional Zener TVS Diode

Standoff voltage of 33V

Breakdown voltage minimum of 36.7V

Clamping voltage maximum of 69.7V at Ipp

Peak pulse current of 143A (8/20µs waveform)

Peak pulse power of 1500W (1.5kW) for efficient transient voltage suppression

Operating temperature range from -55°C to 150°C

Product Advantages

High surge capability for protection against severe voltage transients

Low incremental surge resistance

High-temperature range for use in harsh environments

Key Technical Parameters

Voltage Reverse Standoff (Typ): 33V

Voltage Breakdown (Min): 36.7V

Voltage Clamping (Max) @ Ipp: 69.7V

Current Peak Pulse (10/1000µs): 143A

Power Peak Pulse: 1500W

Operating Temperature: -55°C ~ 150°C (TJ)

Quality and Safety Features

Designed to meet UL recognition for safety assurance

Compatibility

Surface Mount mounting type in a DO-214AB, SMC package for easy PCB integration

Compatible with high-speed data lines and other sensitive electronics

Application Areas

Used in protection of I/O Interfaces, Vcc bus, and other vulnerable circuits

Ideal for consumer electronics, automotive, telecommunications, and industrial applications

Product Lifecycle

Current status: Active

Not nearing discontinuation, with continuous manufacturer support for replacements or upgrades

Several Key Reasons to Choose This Product

Robust protection against voltage transients and surges

High reliability and performance under extreme conditions

Suitable for a wide range of applications and industries

Proven quality and safety with STMicroelectronics’ reputation

Availability in Tape & Reel packaging for efficient assembly processes