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STMicroelectronics T835T-8G-TR — Discrete Semiconductors

STMicroelectronics T835T-8G-TR Snubberless Triac

MPNT835T-8G-TR
Active

STMicroelectronics Snubberless™ series, Triac Alternistor - Snubberless, Single, Surface Mount, TO-263-3 D²Pak, 800 V Off State, 8 A RMS On State, -40°C to 150°C.

$0.8500Ref. price · indicative, final on quote
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

T835T-8G-TR specifications
ParameterValue
SeriesSnubberless™
Triac typeAlternistor - Snubberless
MountingSurface Mount
Voltage - off state800 V
Voltage - gate trigger (Vgt)1.3 V
Current - hold (Ih)40 mA
Current - gate trigger (Igt)35 mA
Current - on state (It (RMS))8 A
Current - non rep. surge 50, 60Hz60A, 63A
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

The T835T-8G-TR: The gate trigger current (Igt) is 35 mA maximum, and the gate trigger voltage (Vgt) is 1.3 V maximum. That is a standard drive level a small-signal transistor or an MCU GPIO through a current-limiting resistor can handle — no dedicated gate-driver IC needed. The 40 mA holding current (Ih) is on the higher side, which helps the device stay latched off once the gate signal is removed, reducing false turn-on risk from leakage currents in noisy environments. For designs driving low-current loads near the holding threshold, verify the load current exceeds Ih over the full operating range.

No end-of-life notice is on record. The base product number is T835, indicating this is the 8 A, 800 V variant in the family. For dual-sourcing or a higher-current option, the Snubberless™ series includes the T1235-600G (12 A, 600 V) in a through-hole package — verify the voltage and current derating for your application before substituting.

Frequently asked questions

What is the gate trigger current of T835T-8G-TR?

These levels are compatible with standard logic-level drive from a microcontroller or small-signal transistor.

Is T835T-8G-TR ROHS compliant?

Yes, the T835T-8G-TR is ROHS3 compliant.

What is the maximum operating temperature of T835T-8G-TR?

The junction temperature range is -40°C to 150°C. The 150°C maximum allows operation in high-ambient environments such as enclosed industrial power supplies and motor drives.

What is the equivalent part for T835T-8G-TR?

The T1235-600G is a higher-current (12 A) Snubberless Alternistor in the same family, but with a 600 V off-state rating and a through-hole package. Verify voltage derating and mounting compatibility before substituting. No pin-compatible surface-mount second source is listed.