Description
The SPT02 is specifically designed for the protection of 24 V proximity sensors. It implements the reverse polarity and the overvoltage protection of the sensor power supply and the power switch overvoltage protection. It provides a very compact and flexible solution. Thanks to high performance ST technology, the SPT02 protects the proximity sensor to the highest level compliant with IEC 61000-4-2, IEC 61000-4-4 and IEC 61000-4-5 standards.

Features
■ Double diode array for switch protection and reverse blocking protection
■ 6 V to 36 V supply voltage range
■ Minimum breakdown voltage VBR: 38 V
■ 8/20 µs 2 A maximum clamping voltage: 46 V
■ Blocking diode drop forward voltage VF: 1.1 V at 300 mA
■ Blocking diode maximum 10 ms square pulse current IFSM: 3 A
■ Ambient temperature: -40 °C to +100 °C
■ µQFN 2L 0.8 mm flat package Complies with following standards
■ Voltage surge: IEC 61000-4-5, RCC = 500 Ω, ±1 kV
■ Electrostatic discharge, IEC 61000-4-2: – ±8 kV contact discharge – ±15 kV air discharge

Applications
■ Factory automation sensor application
■ Proximity sensor interface protection
■ Transient and surge voltage protection
■ Compliant with sensor standard, EN 60947-5-2