SZSMF4L automotive grade 400 watt transient suppression diode introduction

The number and complexity of automotive electronics are increasing, and all of these components need protection against high-voltage, high-energy transients.

Littelfuse's new SZSMF4L 400 W TVS diode series offers fast response time, low Zener impedance, high surge handling capability, and excellent clamping capabilities to protect these sensitive systems.

Its low leakage current is also ideal for protecting sensors. Due to its small size, this diode is suitable for most automotive applications, especially vehicle electrification.

The SZSMF4L series is ideal for a wide range of automotive electronics applications, including:

Electric vehicle powertrain

On-Board Charging (OBC)

Battery Management System (BMS)

Electric vehicle inverter

Power Distribution Unit (PDU)

Domain controller

Zone Controller

Body Control Module

Sensor protection requires low leakage current.

SZSMF4L Series

“With the megatrend of vehicle electrification and autonomous driving, TVS miniaturization is becoming increasingly important to automotive electronics engineers and PCB designers,” said Charlie Cai, SBU director of product marketing at Littelfuse. “

The automotive-grade SZSMF4L TVS diodes offer greater flexibility while saving space, providing an ideal 400-watt solution with both unidirectional and bidirectional protection in a small (SOD-123FL) TVS diode package.”

SZSMF4L Series SMD TVS Diodes have the following key features and benefits:

Compact SOD-123FL package is compatible with automated PCB assembly processes

Takes up approximately 40% less PCB space than previously available components

Operating peak reverse voltage range: unidirectional (5 to 78 V) and bidirectional (10 to 78 V)

Low leakage current performance

High operating temperature: up to 175°C