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STMicroelectronics T435-600T — Discrete Semiconductors

STMicroelectronics T435-600T Snubberless Triac

MPNT435-600T
End of Life

STMicroelectronics Snubberless™ series, Triac Alternistor - Snubberless, Single, Through Hole, TO-220-3, 600 V Off State, 4 A RMS, -40°C ~ 125°C.

$1.14Ref. price · indicative, final on quote
STMicroelectronics T435-600T datasheet (PDF)
PackagingTO-220-3
RoHSROHS3 Compliant
SeriesSnubberless™
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

T435-600T specifications
ParameterValue
SeriesSnubberless™
Triac typeAlternistor - Snubberless
MountingThrough Hole
Voltage - off state600 V
Voltage - gate trigger (Vgt)1.3 V
Current - hold (Ih)35 mA
Current - gate trigger (Igt)35 mA
Current - on state (It (RMS))4 A
Current - non rep. surge 50, 60Hz30A, 31A
Operating temperature-40°C ~ 125°C (TJ)
PackageTube
ConfigurationSingle
CaseTO-220-3

Product details

What this Snubberless triac does on your board

The STMicroelectronics T435-600T is a 4 A RMS, 600 V off-state Snubberless Alternistor triac in a TO-220-3 through-hole package. It switches AC loads without requiring an external RC snubber network.

Snubberless means one less passive

The Snubberless designation means this triac is rated for high commutation dV/dt without an external RC snubber. The trade-off is the higher gate trigger current (35 mA). The 35 mA hold current also means the load must draw at least that much to stay latched on.

Frequently asked questions

What is the gate trigger current for T435-600T?

The maximum gate trigger current (Igt) is 35 mA, and the maximum gate trigger voltage (Vgt) is 1.3 V.

Is T435-600T snubberless?

Yes, the T435-600T is a Snubberless Alternistor triac. It does not require an external RC snubber for inductive load commutation.

What is the difference between T435-600T and T435-600B?

The T435-600T is in a TO-220-3 through-hole package. The T435-600B is the same die in a D²PAK surface-mount package. Electrical ratings (600 V off-state, 4 A RMS, 35 mA Igt) are identical.

What is T435-600T equivalent or replacement?

The closest functional equivalent is the T435T-600FP, which shares the same Alternistor-Snubberless construction, 600 V off-state, and 4 A RMS rating, but comes in a TO-220FP fully insulated package.