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S802ECS
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Product Detailed Parameters
- Description：SCR SEN 800V 1.5A TO-92WB
- Series：EV
- Mfr：Littelfuse Inc.
- Package：Bulk
- Voltage - Off State：800 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)：20A, 24A
- SCR Type：Sensitive Gate
- Operating Temperature：-40°C ~ 125°C (TJ)
- Grade：-
- Qualification：-
- Mounting Type：Through Hole
- Package / Case：TO-226-3, TO-92-3 (TO-226AA)
- Supplier Device Package：TO-92
- Voltage - On State (Vtm) (Max)：1.6 V
- Current - On State (It (AV)) (Max)：900 mA
- Current - On State (It (RMS)) (Max)：1.5 A
- Current - Off State (Max)：3 µA
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Overview
The S802ECS is a sensitive gate silicon controlled rectifier (SCR) from Littelfuse’s EV Series, rated for 1.5 A continuous on-state current and 800 V blocking voltage. Packaged in a TO-92 through-hole configuration, it features high static dv/dt immunity and low turn-off time. Designed specifically for ground fault circuit interrupter (GFCI), arc fault circuit interrupter (AFCI), and residual current device (RCD) applications, the component ensures reliable switching performance in safety-critical protection circuits.
Feature Summary
- Sensitive gate triggering mechanism for reliable activation
- High static dv/dt capability to prevent false triggering
- Low turn-off time for rapid circuit interruption
- Designed for integration into GFCI, AFCI, and RCD systems
Applications
- Ground Fault Circuit Interrupter (GFCI) modules
- Arc Fault Circuit Interrupter (AFCI) detection circuits
- Residual Current Device (RCD) protection systems
Procurement Notes
Verify the specific ordering suffix against the manufacturer's official datasheet to confirm package type and electrical ratings. Ensure the component matches the required voltage and current specifications for the target application. Confirm compliance with relevant safety standards for GFCI or AFCI implementations before procurement.
Selection Notes
Select this SCR for applications requiring sensitive gate control and robust noise immunity. The high dv/dt rating minimizes false triggering risks in electrically noisy environments. Consider the TO-92 package for through-hole assembly requirements and verify thermal management needs for continuous 1.5 A operation.
Part Context
The S802ECS belongs to Littelfuse’s EV Series of 1.5 Amp sensitive SCRs. This series is engineered to provide high reliability in safety protection devices. The component complements Littelfuse’s broader portfolio of circuit protection solutions, focusing on precise switching characteristics for residential and industrial safety applications.
Replacement Considerations
Consult the official Littelfuse replacement guide for direct substitutes. Verify that any alternative part maintains compatible gate sensitivity, voltage ratings, and package dimensions to ensure seamless integration without redesigning the PCB layout.
