Overview
The T1235T-8T Triac, produced by STMicroelectronics, is a 12 A, 800 V snubberless Triac designed for general purpose AC switching applications. It is housed in a TO-220AB through-hole package, making it suitable for on/off or phase angle control functions in various AC load control scenarios. This component is part of STMicroelectronics' Snubberless high temperature technology, offering enhanced thermal management and robust dynamic turn-off commutation.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| IT(RMS) | 12 | A |
| ITSM (Non repetitive surge peak on-state current) | 126 | A (t = 16.7 ms, Tj initial = 25 °C) |
| VDRM/VRRM (Repetitive peak off-state voltage) | 800 | V |
| VDSM/VRSM (Non Repetitive peak off-state voltage) | 900 | V (tp = 10 ms, Tj = 25 °C) |
| IGT (Gate trigger current) | 5 - 35 | mA (VD = 12 V, RL = 30 Ω) |
| Tj max. (Operating junction temperature) | -40 to +150 | °C |
| dl/dt (Critical rate of rise of on-state current) | 100 | A/µs (IG = 2 x IGT, tr ≤ 100 ns, f = 100 Hz, Tj = 25 °C) |
Key Features
- 12 A medium current Triac
- 800 V symmetrical blocking voltage
- 150 °C maximum junction temperature Tj
- Three triggering quadrants
- High noise immunity - static dV/dt
- Robust dynamic turn-off commutation - (dl/dt)c
- ECOPACK2 compliant component
- Molding resin UL94-V0 flammability certified
Applications
- General purpose AC line load control
- AC induction and universal motor control
- Lighting and automation I/O control
- Water heater, room heater, and coffee machine
- Home automation smart AC plug
- Inrush current limiter in AC DC rectifiers
Q & A
- What is the maximum RMS on-state current of the T1235T-8T Triac?
The maximum RMS on-state current is 12 A at Tc = 135 °C.
- What is the repetitive peak off-state voltage of the T1235T-8T Triac?
The repetitive peak off-state voltage is 800 V.
- What is the maximum junction temperature of the T1235T-8T Triac?
The maximum junction temperature is 150 °C.
- Does the T1235T-8T Triac have high noise immunity?
Yes, it has high noise immunity - static dV/dt.
- What package type is the T1235T-8T Triac available in?
The T1235T-8T Triac is available in a TO-220AB through-hole package.
- Is the T1235T-8T Triac ECOPACK compliant?
Yes, the T1235T-8T Triac is ECOPACK2 compliant.
- What are some common applications of the T1235T-8T Triac?
Common applications include general purpose AC line load control, AC induction and universal motor control, and home automation smart AC plugs.
- What is the critical rate of rise of on-state current for the T1235T-8T Triac?
The critical rate of rise of on-state current is 100 A/µs at IG = 2 x IGT, tr ≤ 100 ns, f = 100 Hz, and Tj = 25 °C.
- Is the molding resin of the T1235T-8T Triac flammability certified?
Yes, the molding resin meets the UL94-V0 flammability standard.
- What is the storage temperature range for the T1235T-8T Triac?
The storage temperature range is -40 to +150 °C.
