Overview
The BTA12-400BRG is a medium current triac from STMicroelectronics, designed for general purpose mains power AC switching. It is available in through-hole and surface-mount packages, making it versatile for various applications. This triac is part of the BTA12 series, which includes both standard and Snubberless™ versions. The BTA12-400BRG is particularly suited for ON/OFF functions and phase control operations in a wide range of applications.
Key Specifications
| Symbol | Parameter | Value | Unit |
|---|---|---|---|
| IT(RMS) | RMS on-state current (full sine wave) | 12 | A |
| VDRM/VRRM | Repetitive peak off-state voltage | 400 | V |
| IGT (Standard) | Triggering gate current | 35/50 | mA |
| ITSM | Non repetitive surge peak on-state current | 120 (F = 50 Hz, t = 20 ms) | A |
| dI/dt | Critical rate of rise of on-state current | 50 A/µs | A/µs |
| VDSM/VRSM | Non repetitive surge peak off-state voltage | VDRM/VRRM + 100 V | V |
| IGM | Peak gate current | 4 A | A |
| PG(AV) | Average gate power dissipation | 1 W | W |
| Tstg | Storage junction temperature range | -40 to +150 °C | °C |
| Tj | Operating junction temperature range | -40 to +125 °C | °C |
Key Features
- Medium current triac
- Low thermal resistance with clip bonding
- Low thermal resistance insulation ceramic for insulated BTA
- High commutation (4Q) or very high commutation (3Q) capability
- BTA series UL1557 certified (file ref: 81734)
- Packages are RoHS (2011/65/EU) compliant
Applications
The BTA12-400BRG is suitable for various applications including:
- ON/OFF or phase angle functions in static relays
- Light dimmers
- Appliance motor speed controllers
- Heating regulation
- Induction motor starting circuits
The Snubberless versions are especially recommended for use on inductive loads due to their high commutation performance.
Q & A
- What is the RMS on-state current of the BTA12-400BRG?
The RMS on-state current is 12 A.
- What is the repetitive peak off-state voltage of the BTA12-400BRG?
The repetitive peak off-state voltage is 400 V.
- What are the triggering gate current values for the BTA12-400BRG?
The triggering gate current values are 35/50 mA.
- What is the non-repetitive surge peak on-state current for the BTA12-400BRG?
The non-repetitive surge peak on-state current is 120 A for a 50 Hz frequency and 20 ms pulse duration.
- What is the critical rate of rise of on-state current for the BTA12-400BRG?
The critical rate of rise of on-state current is 50 A/µs.
- Is the BTA12-400BRG RoHS compliant?
- What are the typical applications of the BTA12-400BRG?
The BTA12-400BRG is typically used in static relays, light dimmers, appliance motor speed controllers, heating regulation, and induction motor starting circuits.
- What is the storage junction temperature range for the BTA12-400BRG?
The storage junction temperature range is -40 to +150 °C.
- What is the operating junction temperature range for the BTA12-400BRG?
The operating junction temperature range is -40 to +125 °C.
- Is the BTA12-400BRG UL certified?
