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T1235T-8T

Public Made by Adom

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STMicroelectronics Thyristors (SCR)/Modules, TO-220AB. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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T1235T-8T

STMicroelectronics · Thyristors (SCR)/Modules · TO-220AB

T1235T-8T from STMicroelectronics, in a TO-220AB. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 A1 passive Main terminal A1, the reference terminal for A2 voltage and gate trigger; the datasheet rates the device at 12 A RMS on-state current (IT(RMS)).
2 A2 passive Main terminal A2, also connected to the tab; blocks VDRM/VRRM of 800 V at Tj = 125 °C and carries 12 A RMS at Tc = 131 °C.
3 G input Gate trigger input; IGT is 35 mA max (VD = 12 V, RL = 30 Ω, quadrants I-II-III) and VGT is 1.3 V max, with peak gate current IGM of 4 A (tp = 20 µs).

Key specifications

Parameter Value
Manufacturer STMicroelectronics
Package TO-220AB
Category Transistors/Thyristors
Pins 3

CAD (KiCad official)

  • Symbol: T1235T-8T
  • Footprint: Package_TO_SOT_THT:TO-220-3_Vertical
  • 3D model: TO-220AB (KiCad packages3D, STEP)
  • 3D model files: t1235t-8t-etched.step / t1235t-8t-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); t1235t-8t.step / t1235t-8t.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: STMicroelectronics datasheet (11 pp, sha256 3dc79563bf323b49, retrieved 2026-10-06, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-4-5-20251001 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF