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STMicroelectronics T1050H-6G-TR — Discrete Semiconductors

ST T1050H-6G-TR Triac, 600V 10A Snubberless D2PAK

MPNT1050H-6G-TR
End of Life

STMicroelectronics Snubberless™ series, T1050H-6G-TR, Alternistor - Snubberless Triac, Single, 600 V Off-State, 10 A RMS On-State, Surface Mount, TO-263-3 / D2PAK, -40°C to 150°C.

$1.29Ref. price · indicative, final on quote
STMicroelectronics T1050H-6G-TR datasheet (PDF)
PackagingTO-263-3, D²Pak (2 Leads + Tab), TO-263AB
RoHSROHS3 Compliant
SeriesSnubberless™
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

T1050H-6G-TR specifications
ParameterValue
SeriesSnubberless™
Triac typeAlternistor - Snubberless
MountingSurface Mount
Voltage - off state600 V
Voltage - gate trigger (Vgt)1 V
Current - hold (Ih)75 mA
Current - gate trigger (Igt)50 mA
Current - on state (It (RMS))10 A
Current - non rep. surge 50, 60Hz100A, 105A
Operating temperature-40°C ~ 150°C (TJ)
PackageTape & Reel (TR); Cut Tape (CT)
ConfigurationSingle
CaseTO-263-3, D²Pak (2 Leads + Tab), TO-263AB

Product details

10 A Snubberless triac for inductive AC loads

The STMicroelectronics T1050H-6G-TR is a 10 A RMS Alternistor triac from the Snubberless™ series, rated for 600 V off-state blocking. Its Snubberless construction means the device can commutate inductive loads — motors, solenoids, transformers — without the external RC snubber network that standard triacs require, simplifying the BOM and layout.

Surge capability and package

Non-repetitive surge current is rated at 100 A at 50 Hz and 105 A at 60 Hz, covering inrush from incandescent lamps or motor start-up. The D2PAK (TO-263-3) surface-mount package suits automated assembly and keeps the thermal path through the exposed tab to the PCB copper.

Frequently asked questions

What is the T1050H-6G-TR equivalent?

A close functional peer is the T1235-600G, also a Snubberless™ Alternistor triac in surface-mount D2PAK, but rated at 12 A RMS and with a 125°C maximum junction temperature. The T1050H-6G-TR offers a higher temperature rating (150°C) at a lower current. Both are ST parts and share the same Snubberless topology.

Can T1050H-6G-TR be used in an AC dimmer?

Yes, the 10 A RMS rating and 600 V off-state voltage suit typical AC dimmer circuits for resistive loads like incandescent lamps. For inductive loads (fans, transformers), the Snubberless feature helps manage commutation without external snubbers.