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S4006FS21
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Product Detailed Parameters
- Description：SCR 400V 6A TO202
- Series：-
- Mfr：Littelfuse Inc.
- Package：Bulk
- Voltage - Off State：400 V
- Voltage - Gate Trigger (Vgt) (Max)：800 mV
- Current - Gate Trigger (Igt) (Max)：200 µA
- Current - Hold (Ih) (Max)：6 mA
- Current - Non Rep. Surge 50, 60Hz (Itsm)：83A, 100A
- SCR Type：Sensitive Gate
- Operating Temperature：-40°C ~ 110°C
- Mounting Type：Through Hole
- Package / Case：TO-202 Short Tab
- Supplier Device Package：TO-202
- Voltage - On State (Vtm) (Max)：1.6 V
- Current - On State (It (AV)) (Max)：3.8 A
- Current - On State (It (RMS)) (Max)：6:00 AM
- Current - Off State (Max)：5 µA
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Overview
The Littelfuse S4006FS21 is a half-wave unidirectional Silicon Controlled Rectifier (SCR) from the Teccor line of sensitive SCRs. It features a TO-202 package with an electrically isolated mounting tab, allowing for low-cost assembly and convenient packaging techniques. The device has a maximum on-state RMS current rating of 6 A at a case temperature of 25 °C and supports repetitive peak off-state forward and reverse voltages up to 400 V. It utilizes glass-passivated junctions to ensure long-term device reliability and parameter stability against junction contamination.
Feature Summary
- Electrically isolated TO-202 package
- High voltage capability up to 600 V
- Glass-passivated chip
Applications
- Half-wave unidirectional gate-controlled rectification
- Power control circuits requiring electrical isolation
- Sensitive triggering applications
Procurement Notes
Verify the specific part number S4006FS21 against official Littelfuse documentation to confirm the exact voltage rating and package configuration. Ensure that the required electrical isolation and thermal management specifications align with your design constraints before procurement.
Selection Notes
Select this component when a 6 A SCR with 400 V blocking capability is needed in an electrically isolated TO-202 package. Consider the glass-passivated construction for enhanced reliability in environments prone to junction contamination. Verify thermal requirements based on the specified operating temperature range.
Part Context
This device belongs to the Teccor line of sensitive SCRs, which complement Littelfuse's power SCR offerings. The series provides ratings from 0.8 A to 10 A and voltages from 200 V to 600 V, featuring various gate sensitivities. The S4006FS21 specifically addresses applications requiring moderate current handling with high voltage blocking in an isolated form factor.
Replacement Considerations
Consult the manufacturer for custom design variations or alternative part numbers within the Teccor series that match specific voltage or current requirements. Verify compatibility with existing circuit layouts and thermal management solutions when substituting.
