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CTM3053
Public Made by Adomby adom
CT Micro International Triac, SCR Output Optoisolators, SOP-4-2.54mm. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownCTM3053
CT Micro International · Triac, SCR Output Optoisolators · SOP-4-2.54mm
CTM3053 from CT Micro International, in a SOP-4-2.54mm. 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 | Anode | passive | Anode of the GaAs infrared LED input; forward current max 60 mA, VF max 1.5 V at IF=10mA, reverse voltage max 6 V. |
| 2 | Cathode | passive | Cathode of the GaAs infrared LED input; for the CTM3053 the input trigger current IFT is max 5 mA. |
| 3 | MT2 | passive | Main terminal 2 of the random-phase phototriac output; off-state voltage rated 600 V. |
| 4 | MT1 | passive | Main terminal 1 of the random-phase phototriac output; peak repetitive surge current 1 A. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | CT Micro International |
| Package | SOP-4-2.54mm |
| Category | Optoisolators |
| Pins | 4 |
CAD (KiCad official)
- Symbol:
CTM3053 - Footprint:
Package_SO:SOP-4_3.8x4.1mm_P2.54mm - 3D model: SOP-4-2.54mm (KiCad packages3D, STEP)
- 3D model files:
ctm3053-etched.step/ctm3053-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ctm3053.step/ctm3053.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: CT Micro International datasheet (10 pp, sha256
77b5d8a927d73a64, retrieved 2026-10-13, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-opus-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).