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S402ESRP
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Product Detailed Parameters
- Description：SCR 400V 1.5A TO92
- 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)：12.5A, 15A
- SCR Type：Sensitive Gate
- Operating Temperature：-40°C ~ 125°C
- Mounting Type：Through Hole
- Package / Case：TO-226-3, TO-92-3 (TO-226AA) Formed Leads
- Supplier Device Package：TO-92
- 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 S402ESRP is a sensitive gate Silicon Controlled Rectifier (SCR) from the Sx02xS series, designed for through-hole mounting in TO-92 packages. It features a rated repetitive off-state voltage of 400 V and an RMS on-state current of 1.5 A. Key electrical parameters include a maximum gate trigger voltage of 800 mV and a gate trigger current of 200 uA. The device operates within a temperature range of -40 C to +125 C, with a holding current maximum of 5 mA and a forward voltage drop of 1.7 V.
Feature Summary
- Sensitive gate architecture enabling reliable triggering with low gate current requirements.
Applications
- General purpose switching circuits requiring low-power gate control.
Procurement Notes
Verify the specific ordering suffix against official Littelfuse documentation to confirm package type and tape/reel specifications. Ensure the component meets required environmental standards such as REACH compliance before integration into final assemblies.
Selection Notes
Select this component when a compact TO-92 SCR is needed for moderate current applications up to 1.5 A. Confirm that the 400 V blocking voltage aligns with the circuit's peak reverse voltage requirements and that the sensitive gate sensitivity matches the available drive signal strength.
Part Context
This part belongs to the Littelfuse Sx02xS series of SCRs, which are widely used in industrial and consumer electronics for AC power control and switching applications. The series offers various voltage ratings and packaging options to suit different design constraints.
Replacement Considerations
Consult Littelfuse datasheets for direct pin-compatible alternatives within the same series or other manufacturers' TO-92 SCRs with matching 400 V and 1.5 A ratings. Verify gate sensitivity and thermal characteristics before substitution.
