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T106D1
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Product Detailed Parameters
- Description：SCR 400V 4A 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)：5 mA
- Current - Non Rep. Surge 50, 60Hz (Itsm)：16A, 20A
- SCR Type：Sensitive Gate
- Operating Temperature：-40°C ~ 110°C
- Grade：-
- Qualification：-
- Mounting Type：Through Hole
- Package / Case：TO-202 Long Tab
- Supplier Device Package：TO-202
- Voltage - On State (Vtm) (Max)：2.2 V
- Current - On State (It (AV)) (Max)：2.5 A
- Current - On State (It (RMS)) (Max)：4:00 AM
- Current - Off State (Max)：2 µA
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Overview
The Littelfuse T106D1 is a sensitive gate silicon-controlled rectifier (SCR) designed for half-wave unidirectional applications. It features a TO-202 non-isolated package with glass-passivated junctions for reliability. The device supports a repetitive peak off-state voltage of 400 V and an average on-state current of 2.5 A at 25 °C case temperature. Peak on-state current reaches 4 A RMS, with a maximum gate trigger current of 200 µA. Operating temperatures range from -40 °C to +110 °C.
Feature Summary
- Sensitive gate architecture enabling direct interfacing with microprocessors via low gate currents
- Glass-passivated junction construction providing durability against contamination and parameter stability
- Non-isolated TO-202 leaded package suitable for chassis or wire installation
Applications
- Temperature control circuits
- Light dimming systems
- Speed control mechanisms
Procurement Notes
Verify the specific package variant required, as the datasheet lists Type 1/3 and Type 2/4 lead configurations for the TO-202 form factor. Confirm RoHS compliance status for the specific manufacturing lot, as older production runs may differ. Ensure the selected part number suffix matches the desired lead forming specifications before finalizing orders.
Selection Notes
Select this component when a 400 V blocking voltage and 2.5 A average current rating are sufficient for the load. The sensitive gate characteristic allows for simplified driver circuitry compared to standard SCRs. Consider thermal derating curves if operating near the maximum case temperature limit of 110 °C.
Part Context
The T106D1 belongs to the Teccor line of sensitive SCRs, which complement power SCR offerings. This series covers ratings from 0.8 A to 10 A and voltages up to 600 V. The T106D1 specifically addresses the 400 V segment within the 4 A RMS category, utilizing the standard TO-202 footprint common in legacy consumer electronics designs.
Replacement Considerations
T106B1 offers identical electrical characteristics but with a 200 V rating. T106M1 provides the same current handling with a 600 V rating. Verify that the replacement maintains the required voltage margin for the specific application environment.
