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Contents

README

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ACST610-8T

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

ACST610-8T from STMicroelectronics, in a TO-220. 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 COM passive Common main terminal (triac anode 1 side, gate reference); OUT-to-COM blocking is 800 V (VDRM/VRRM) in both polarities and IT(RMS) is 6 A.
2 OUT passive Main output terminal of the triac, also connected to the metal tab; carries up to 6 A rms and is clamped by the internal overvoltage device (VCL min 850 V at 0.1 mA).
3 G input Gate trigger input; IGT max 10 mA and VGT max 1.0 V at VOUT = 12 V, RL = 33 Ω, drivable directly from an MCU through a gate resistor.

Key specifications

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

CAD (KiCad official)

  • Symbol: ACST610-8T
  • Footprint: Package_TO_SOT_THT:TO-220-3_Vertical
  • 3D model: TO-220 (KiCad packages3D, STEP)
  • 3D model files: acst610-8t-etched.step / acst610-8t-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); acst610-8t.step / acst610-8t.glb are the bare package body.

Provenance

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

  • Datasheet: STMicroelectronics datasheet (20 pp, sha256 ee719ad21af04641, retrieved 2026-09-30, tier: lcsc)
  • 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