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S402TS1RP
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Product Detailed Parameters
- Description：SEN SCR 400V 1.5A 100 A SOT223
- Series：EV
- Mfr：Littelfuse Inc.
- Package：Tape & Reel (TR)
- Voltage - Off State：400 V
- Voltage - Gate Trigger (Vgt) (Max)：800 mV
- Current - Gate Trigger (Igt) (Max)：100 µA
- Current - Hold (Ih) (Max)：3 mA
- Current - Non Rep. Surge 50, 60Hz (Itsm)：12.5A, 15A
- SCR Type：Sensitive Gate
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：TO-261-4, TO-261AA
- Supplier Device Package：SOT-223
- Voltage - On State (Vtm) (Max)：1.7 V
- Current - On State (It (AV)) (Max)：950 mA
- Current - On State (It (RMS)) (Max)：1.5 A
- Current - Off State (Max)：5 µA
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Overview
The Littelfuse S402TS1RP is a Silicon Controlled Rectifier (SCR) belonging to the Sx02xS series, designed for surface-mount applications. It features a rated repetitive off-state voltage (VDRM) of 400 V and an RMS on-state current (ItRMS) of 1.5 A. The device exhibits a maximum off-state leakage current of 5 uA at VDRM. Packaged in a compact SOT223-3 form factor, it supports both reel and cut tape mounting styles. This component serves as a sensitive gate thyristor suitable for integration into printed circuit boards requiring reliable switching capabilities within standard industrial temperature ranges.
Feature Summary
- Surface-mount construction utilizing the SOT223-3 package for automated PCB assembly
- Sensitive gate architecture enabling efficient triggering with low control power requirements
- High voltage blocking capability defined by a 400 V rated repetitive off-state voltage
Applications
- AC power control circuits
- Lighting dimmer systems
- Motor speed control interfaces
Procurement Notes
Verify the specific Littelfuse datasheet for the S402TS1RP to confirm detailed electrical characteristics and thermal resistance values before finalizing design specifications. Ensure that the selected packaging option, whether reel or cut tape, aligns with the manufacturing equipment's handling capabilities. Cross-reference the SOT223-3 footprint dimensions against the target PCB layout to guarantee mechanical compatibility and proper solder joint formation during the assembly process.
Selection Notes
Select this component when a compact SCR solution is required for moderate current switching tasks up to 1.5 A. The 400 V rating makes it appropriate for lower voltage AC mains applications. Consider the SOT223-3 package constraints regarding thermal dissipation compared to larger through-hole alternatives. Evaluate the sensitive gate trigger requirements against the available drive circuitry to ensure reliable turn-on without excessive gate current demands.
Part Context
This part belongs to the Littelfuse Sx02xS family of surface-mount SCRs. These devices are engineered to replace traditional through-hole thyristors in space-constrained designs. The series offers various voltage ratings and current capacities, providing designers with flexible options for integrating robust semiconductor switching elements directly onto modern high-density printed circuit boards without compromising performance or reliability standards.
Replacement Considerations
Direct replacements must match the SOT223-3 package and 400 V / 1.5 A specifications. Verify pinout compatibility between the anode, cathode, and gate terminals to prevent circuit damage during substitution.
