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Product Detailed Parameters
- Description：TRIAC ALTERNISTOR 800V 20A TO220
- Series：ECOPACK®2
- Mfr：STMicroelectronics
- Package：Tube
- Triac Type：Alternistor - Snubberless
- Voltage - Off State：800 V
- Current - On State (It (RMS)) (Max)：20 A
- Voltage - Gate Trigger (Vgt) (Max)：1.3 V
- Current - Non Rep. Surge 50, 60Hz (Itsm)：200A, 210A
- Current - Gate Trigger (Igt) (Max)：35 mA
- Current - Hold (Ih) (Max)：35 mA
- Configuration：Single
- Operating Temperature：-40°C ~ 150°C (TJ)
- Mounting Type：Through Hole
- Package / Case：TO-220-3
- Supplier Device Package：TO-220
- Grade：-
- Qualification：-
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Overview
The T2035H-8T is a high-current Triac from the ST H-Series, housed in a TO-220AB package. It features an RMS on-state current of 20 A and a repetitive peak off-state voltage of 800 V. The device supports a maximum junction temperature of 150 °C and utilizes Snubberless high temperature technology for robust commutation. Key electrical parameters include a gate trigger current (IGT) maximum of 35 mA, a non-repetitive surge peak on-state current of 210 A at 16.7 ms, and a critical rate of rise of on-state current ((dl/dt)c) minimum of 20 A/ms at 150 °C. The component provides high static dV/dt immunity and operates across a junction temperature range of -40 to +150 °C.
Feature Summary
- High noise immunity with specified static dV/dt levels up to maximum junction temperature
- Robust dynamic turn-off commutation capabilities without requiring external snubber networks
- Three triggering quadrants operation for versatile gate control
- Enhanced thermal management enabling heatsink size reduction for heavy AC loads
Applications
- Home automation smart AC plugs
- Water heaters, room heaters, and coffee machines
- AC induction and universal motor control
- Inrush current limiting in AC DC rectifiers
- Lighting and automation I/O control
Procurement Notes
Verify the specific ordering suffix 'T' corresponds to the TO-220AB tube packaging configuration as defined in the official datasheet. Confirm that the required environmental compliance meets ECOPACK2 standards before finalizing procurement. Ensure the selected quantity aligns with the standard base quantity of 50 units per tube to match manufacturer delivery modes.
Selection Notes
Select this component when driving heavy AC loads requiring 20 A continuous current and 800 V blocking capability. The 150 °C maximum junction temperature allows for compact drive designs with reduced heatsink sizes compared to traditional Triacs. Verify that the application circuit can handle the specified 210 A surge current and that the gate drive signal meets the 35 mA maximum trigger requirement for reliable switching.
Part Context
This Triac belongs to the ST H-Series, which is characterized by high noise immunity and robust commutations. The series includes variants with different voltage ratings and current capacities, all sharing the Snubberless high temperature technology. The T2035H-8T specifically addresses industrial control and home appliance applications needing reliable switching of inductive loads and universal motors.
Replacement Considerations
Direct substitutes within the same family include T2035H-6T (600 V rating) or T2035H-8G (D2PAK surface mount package). For through-hole replacements with identical electrical characteristics but different packaging, verify pinout compatibility and thermal resistance differences between TO-220AB and alternative packages.
