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STMicroelectronics BTA12-700BWRG — Discrete Semiconductors

STMicroelectronics BTA12-700BWRG Snubberless™ Triac, 700V

MPNBTA12-700BWRG
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STMicroelectronics Snubberless™ series, Alternistor - Snubberless Triac, Single, 700 V Off State, 12 A RMS, 50 mA Igt, TO-220-3 Through Hole, -40°C~125°C.

$1.9200Ref. price · indicative, final on quote
STMicroelectronics BTA12-700BWRG datasheet (PDF)
PackagingTO-220-3
RoHSROHS3 Compliant
SeriesSnubberless™
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

BTA12-700BWRG specifications
ParameterValue
SeriesSnubberless™
Triac typeAlternistor - Snubberless
MountingThrough Hole
Voltage - off state700 V
Voltage - gate trigger (Vgt)1.3 V
Current - hold (Ih)50 mA
Current - gate trigger (Igt)50 mA
Current - on state (It (RMS))12 A
Current - non rep. surge 50, 60Hz120A, 126A
Operating temperature-40°C~125°C(TJ)
PackageTube
ConfigurationSingle
CaseTO-220-3

Product details

The STMicroelectronics BTA12-700BWRG is a 12 A RMS, 700 V off-state Snubberless™ alternistor triac in a TO-220 through-hole package. Its key distinction is the Snubberless™ design: the device is rated for inductive-load switching without an external RC snubber network, saving two passive components and the associated PCB area. This matters most for motor control, solenoid drivers, and transformer-coupled loads where the commutation dV/dt would otherwise force a snubber. The alternistor construction (non-sensitive gate) gives it higher immunity to false triggering from line transients compared to a standard TRIAC — useful in industrial environments with noisy mains.

No end-of-life notice on record.

Frequently asked questions

What is the difference between the BTA12-700BWRG and a standard TRIAC?

The BTA12-700BWRG is an Alternistor - Snubberless triac. Unlike a standard TRIAC, it does not require an external RC snubber network for inductive-load switching, and its alternistor construction provides higher immunity to false triggering from line transients.

Can the BTA12-700BWRG be used for 230V AC motor control?

Yes. The 700 V off-state voltage provides adequate headroom above the 325 V peak of a 230 VAC line, and the 12 A RMS rating supports motors up to roughly 2.2 kW inductive. The Snubberless™ design is well-suited for inductive loads.

What is a Snubberless™ triac?

Snubberless™ is STMicroelectronics' series designation for triacs rated to switch inductive loads without an external RC snubber network. This reduces BOM count and board area compared to a standard triac installation.

Is the BTA12-700BWRG a direct replacement for the BTA12-600BWRG?

The BTA12-700BWRG has a 700 V off-state rating versus 600 V for the -600 variant. It can replace a BTA12-600BWRG in any circuit that can tolerate the higher voltage rating, but verify gate trigger characteristics and package compatibility from the respective datasheets.