S602BS1RP

Overview

The Littelfuse S602BS1RP is a silicon-controlled rectifier (SCR) from the Sx02xS series, designed for surface-mount applications. It features a rated repetitive off-state voltage (VDRM) of 600 V and an on-state RMS current (It RMS) of 1.5 A. The device operates within a temperature range of -40°C to +125°C and utilizes a sensitive gate with a maximum gate trigger voltage (Vgt) of 800 mV and a gate trigger current (Igt) of 50 µA. Packaged in a compact SOT-89-3 form factor, it offers low leakage current of 5 µA at VDRM and a maximum holding current (Ih) of 3 mA.

Feature Summary

• Sensitive gate architecture enables direct interfacing with microprocessors using minimal gate drive current.
• Glass passivated junction construction ensures durability against environmental stressors.
• Surface-mount SOT-89-3 package facilitates automated assembly and space-constrained PCB layouts.

Applications

• Capacitive-discharge ignition systems
• Strobe light control circuits
• Fluid level sensors
• Ground fault circuit interrupter (GFCI) solenoids

Procurement Notes

Verify component authenticity by cross-referencing the manufacturer part number S602BS1RP with official Littelfuse documentation. Confirm that the received units match the specified SOT-89-3 package and electrical ratings. Ensure compliance with RoHS directives if required by the design specification. Check for any product change notifications or obsolescence notices prior to finalizing procurement orders.

Selection Notes

Select this SCR for designs requiring a 600 V blocking voltage and 1.5 A continuous current handling in a small footprint. The sensitive gate characteristic simplifies driver circuitry compared to standard gate devices. Verify that the application's peak transient currents remain within the non-repetitive surge limits defined in the datasheet. Consider thermal management requirements given the operating temperature range up to 125°C.

Part Context

This component belongs to the Littelfuse Sx02xS series of discrete SCRs. These devices are engineered for efficient switching in low-current circuits. The series provides options for various voltage ratings and packages, including surface-mount configurations like the SOT-89-3 used in this model. They are optimized for applications demanding precise triggering and reliable performance in electronic controls.

Replacement Considerations

Potential substitutes include other 600 V, 1.5 A SCRs in SOT-89 packages from Littelfuse or other manufacturers, provided pinouts and electrical characteristics align. Verify gate sensitivity and holding current compatibility to ensure proper circuit operation without redesigning the drive stage.

FAQ

What is the maximum gate trigger current for the S602BS1RP?

The maximum gate trigger current (Igt) is 50 µA, allowing for sensitive triggering with low power drive signals.

Does the S602BS1RP support lead-free reflow soldering?

Yes, the device is compatible with lead-free reflow soldering processes as per its RoHS compliance.

What is the maximum operating temperature for this SCR?

The maximum operating temperature is +125°C.