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STMicroelectronics
STMicroelectronics T835T-8FP Snubberless TRIAC – 800V 8A, 35mA Gate Trigger, Insulated TO-220FPAB Through-Hole Power Thyristor
STMicroelectronics T835T-8FP Snubberless TRIAC – an 800V, 8A three-quadrant power TRIAC featuring a 35mA maximum gate trigger current and insulated TO-220FPAB through-hole package. Designed for general-purpose AC switching, motor-control circuits, lighting, small appliances, inrush-current limiting and phase-angle control. Provides high static/dynamic commutation performance and UL-certified 2kV package insulation. Manufacturer status: Obsolete / Out of Production.
Stock: 0SKU: SEN-STMICROELECTRONICS-T835T-8FPModel: T835T-8FP
BDT 75BDT 80
Final pricing may vary by configuration, quantity, delivery and project requirements.
Product overview
STMicroelectronics T835T-8FP 800V 8A Snubberless TRIAC
The STMicroelectronics T835T-8FP is an 800V, 8A Snubberless TRIAC designed for general-purpose AC line switching, motor control, lighting, small appliances and other power-control applications requiring high commutation capability.
This device uses a TO-220FPAB full-pack insulated through-hole package and provides UL-certified insulation rated at 2kV. Its Snubberless technology provides high static and dynamic commutation performance and allows operation without an external snubber circuit when the operating limits specified by STMicroelectronics are respected.
Key Features
- 800V repetitive peak off-state voltage
- 8A RMS on-state current
- 35mA maximum gate trigger current
- 900V non-repetitive peak off-state voltage
- Snubberless TRIAC technology
- High static and dynamic commutation capability
- Three-quadrant operation
- Through-hole mounting
- Insulated TO-220FPAB full-pack package
- UL-certified insulation rated at 2kV
- ECOPACK2 compliant component
Technical Specifications
| Manufacturer | STMicroelectronics |
| Part Number | T835T-8FP |
| Component Type | Snubberless TRIAC |
| Configuration | Single |
| RMS On-State Current | 8A |
| Repetitive Peak Off-State Voltage | 800V |
| Non-Repetitive Peak Off-State Voltage | 900V |
| Maximum Gate Trigger Current | 35mA |
| Maximum Gate Trigger Voltage | 1.3V |
| Maximum Holding Current | 40mA |
| Non-Repetitive Surge Current | 60A @ 50Hz / 63A @ 60Hz |
| Operating Quadrants | I, II & III |
| Mounting Type | Through Hole |
| Package | TO-220FPAB / TO-220 Full Pack |
| Insulation | UL Certified, 2kV |
| Junction Temperature Range | -40°C to +150°C |
Snubberless AC Switching
The T835T-8FP is designed for applications requiring reliable switching of AC loads with strong commutation performance. It can be used for both ON/OFF switching and phase-angle control.
When the electrical limits specified by the manufacturer are respected, the device can operate without an external snubber circuit, helping simplify suitable AC power-control designs.
Insulated TO-220FPAB Package
The full-pack TO-220FPAB construction provides electrical insulation between the semiconductor and external heatsink mounting surface. STMicroelectronics specifies UL-certified insulation rated at 2kV for the T835T-8FP.
Typical Applications
- General-Purpose AC Line Load Switching
- Industrial AC Control Circuits
- Motor Control Circuits
- Small Home Appliances
- Lighting Control
- Phase-Angle Control
- Inrush Current Limiting Circuits
- Overvoltage Crowbar Protection
- Industrial Control Boards
- Power Electronics Repair
- Replacement of Compatible TRIACs
Lifecycle Information
Important: STMicroelectronics currently lists the T835T-8FP as obsolete / out of production. Availability may therefore consist of remaining distributor stock, new-old-stock (NOS), or secondary-market inventory.