component

ACST1035-7T

Public Unreviewed

by Ray

STMicroelectronics Thyristors (SCR)/Modules, TO-220. Datasheet-verified pinout, KiCad symbol/footprint/3D.

componenttransistors-thyristorsacst1035-7t
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity

3D Model

Open in new tab ↗
Loads on click. Unloads when scrolled away or the tab is hidden.

Symbol & Footprint

Schematic Symbol

Open full view ↗
Loads on click. Unloads when scrolled away or the tab is hidden.

PCB Footprint

Open full view ↗
Loads on click. Unloads when scrolled away or the tab is hidden.

Datasheet

Open in new tab ↗
Loads on click. Unloads when scrolled away or the tab is hidden.
Download PDF
Contents

README

markdown

ACST1035-7T

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

ACST1035-7T from STMicroelectronics, in a TO-220. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 COM passive Common (main terminal 1, MT1) of the Triac. Reference terminal for OUT and for the gate drive. Typically tied to the low-side of the AC load or to the mains return in appliance/compressor drives.
2 OUT passive Output (main terminal 2, MT2) of the Triac; also electrically bonded to the TO-220AB heat-sink tab. Carries the switched AC load current (up to 10 A RMS, VDRM/VRRM = 700 V) and the clamped surge current during IEC 61000-4-5 events.
3 G input Gate trigger input. For the ACST1035-7, IGT ≤ 35 mA (quadrants I-II-III, VOUT = 12 V, RL = 33 Ω), VGT ≤ 1.0 V, IGM ≤ 1.6 A (tp = 20 µs). Drive via a series gate resistor from an MCU or gate driver referenced to COM.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

  • ACST1035-7TT
  • ACST1035-7TFP

CAD (KiCad official)

  • Symbol: ACST1035-7T
  • Footprint: Package_TO_SOT_THT:TO-220-3_Vertical
  • 3D model: TO-220 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: STMicroelectronics datasheet (None pp, sha256 38d92a3c09844f5e, retrieved 2026-08-17, tier: lcsc)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF