ChipApex | Global Electronic Components Supplier
S4SRP
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 COMPAK
- Series：-
- Mfr：Littelfuse Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Voltage - Off State：400 V
- Voltage - Gate Trigger (Vgt) (Max)：800 mV
- Current - Gate Trigger (Igt) (Max)：200 µA
- Current - Hold (Ih) (Max)：5 mA
- Current - Non Rep. Surge 50, 60Hz (Itsm)：16A, 20A
- SCR Type：Sensitive Gate
- Operating Temperature：-40°C ~ 110°C
- Mounting Type：Surface Mount
- Package / Case：DO-214AA, SMB (3 Leads), Compak
- Supplier Device Package：Compak
- 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)：1 µA
Download product information
Overview
The Littelfuse S4SRP is a sensitive-gate Silicon Controlled Rectifier (SCR) designed for surface-mount applications. It features a rated repetitive off-state voltage of 400 V and an RMS on-state current of 800 mA. The device operates with a gate trigger voltage of 800 mV and a gate trigger current of 200 µA, enabling efficient control in low-power circuits. It supports a non-repetitive on-state current of 20 A and maintains a holding current maximum of 5 mA. The component functions within a temperature range of -40°C to +125°C and utilizes a DO-214AA package.
Feature Summary
- Sensitive gate architecture allows reliable triggering with minimal input power requirements
- Surface mount construction facilitates automated assembly and compact circuit board layouts
- High thermal stability ensures consistent performance across wide industrial operating temperatures
Applications
- Solid state relay switching circuits
- AC motor speed control systems
- Lighting dimmer implementations
- General purpose power control modules
Procurement Notes
Verify the specific manufacturer part number against official Littelfuse documentation to confirm pinout compatibility and electrical ratings. Ensure that the procurement channel provides valid traceability records. Confirm that the delivered components match the specified surface mount package type and meet all relevant RoHS compliance standards required for the target application environment.
Selection Notes
Select this component when a surface mount SCR with low gate drive sensitivity is required for AC power control. The 400 V rating suits general mains-level applications, while the 800 mA current capacity defines its load handling limits. Consider the DO-214AA footprint constraints during PCB layout design to ensure adequate thermal dissipation and mechanical stability for the intended operational duty cycle.
Part Context
This device belongs to the Littelfuse SxSRP series of sensitive-gate SCRs. These components are engineered for high reliability in consumer and industrial electronics where space efficiency is critical. The series offers a balance of robust power handling capabilities and precise gate control characteristics suitable for modern surface-mount manufacturing processes.
Replacement Considerations
Consult official Littelfuse substitution guides for verified equivalent part numbers. Cross-reference electrical parameters such as voltage ratings, current capacities, and package dimensions before implementing any alternative components to ensure circuit integrity.
