ChipApex | Global Electronic Components Supplier
S4X8TS2RP
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：SCR 400V 800MA SOT223
- Series：-
- Mfr：Littelfuse Inc.
- Package：Tape & Reel (TR)
- Voltage - Off State：400 V
- Voltage - Gate Trigger (Vgt) (Max)：800 mV
- Current - Gate Trigger (Igt) (Max)：50 µA
- Current - Hold (Ih) (Max)：5 mA
- Current - Non Rep. Surge 50, 60Hz (Itsm)：8A, 10A
- SCR Type：Sensitive Gate
- Operating Temperature：-40°C ~ 125°C
- 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)：510 mA
- Current - On State (It (RMS)) (Max)：800 mA
- Current - Off State (Max)：3 µA
Download product information
Overview
The Littelfuse S4X8TS2RP is a silicon-controlled rectifier (SCR) from the SxX8xS series, designed for surface-mount applications in the SOT-223-3 package. It features a rated repetitive off-state voltage (VDRM) of 800 V and an RMS on-state current (It RMS) of 800 mA. The device has a maximum gate trigger current (Igt) of 50 uA and a gate trigger voltage (Vgt) of 800 mV. Forward voltage (Vf) is 1.7 V, with a holding current (Ih) max of 5 mA. Non-repetitive peak on-state current is 10 A, and leakage current at VDRM is 3 uA. Operating temperature ranges from -40 C to +125 C.
Feature Summary
- Sensitive gate control with low trigger current requirements
- High voltage blocking capability for power switching
- Surface-mount construction for automated assembly
Applications
- AC power control circuits
- Lighting dimmer applications
- Motor speed control systems
Procurement Notes
Verify the specific suffix '2' against official Littelfuse documentation to confirm the 50 uA gate trigger characteristic, as standard variants may differ. Ensure the SOT-223-3 footprint matches the target PCB design. Confirm RoHS compliance status through the manufacturer's latest environmental declaration before finalizing procurement.
Selection Notes
Select this component when an 800 V blocking voltage and 800 mA continuous current are required in a compact SMD form factor. The sensitive gate drive requirement of 50 uA allows for direct interfacing with low-power logic or microcontroller outputs without additional amplification stages, simplifying circuit design.
Part Context
This part belongs to the SxX8xS family of thyristors, which provides various voltage ratings within the same physical package. The S4X8TSRP variant offers 400 V rating, while the S8X8TS2RP provides 800 V. All share similar thermal and mechanical characteristics suitable for space-constrained designs.
Replacement Considerations
Direct pin-compatible replacements include the S4X8TSRP for lower voltage applications. Verify that any substitute maintains the 800 V VDRM and 800 mA It RMS ratings. Check gate sensitivity parameters to ensure compatibility with existing drive circuits.
