Circuit Protection Misc Automation Sensor Transient

The SPT01-335 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 offering two connections for PNP or NPN sensors as shown in Figure 8 and Figure 9.Thanks to high performance ST technology, the SPT01-335 protects the proximity sensor to the highest level compliant with IEC 61000-4-2, IEC 61000-4-4 and IEC 60947-5-2 / IEC 61000-4-5 standards.

Triple diode array for power bus protection, switch protection and reverse blocking protection

Flexible connection for NPN low side or PNP high side sensor configuration

6 V to 36 V supply voltage range

Stand-off voltage: 36 V

Minimum breakdown voltage V_BR: 38 V

8/20 µs 2A maximum clamping voltage: 46 V

Direct sensor switch current: 300 mA

Blocking diode drop forward voltage V_F: 1 V at 300 mA

Blocking diode maximum 10 ms square pulse current I_FSM: 1 A

Ambient temperature: -40 °C to +100 °C

QFN3x3-6L 1 mm flat package: 3x3 mm

Voltage surge: EN 60947-5-2 orIEC 61000-4-5 with R_CC= 500 O: ±1 kV

Electrostatic discharge ESD, IEC 61000-4-2:± 8 kV in contact, ± 15 kV in air

Electrical transient immunity, IEC 61000-4-4: ±2 kV

Benefits

Compliant for interface with logic input type 1, 2 and 3 IEC 61131-2 standard

Recommended to protect any 3-wire sensor compliant with EN 60947-5-2 standard

Highly compact with integrated power solution in SMD version