component
X0202MA 1BA2
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STMicroelectronics Thyristors (SCR)/Modules, TO-92. Pinout reviewed by a person against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+39@@ -0,0 +1,39 @@+# X0202MA 1BA2++**STMicroelectronics** · Thyristors (SCR)/Modules · TO-92++X0202MA 1BA2 from STMicroelectronics, in a TO-92. 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 | K | passive | Cathode terminal of the sensitive-gate SCR; carries the on-state current in the reverse-return path and is the reference terminal for the gate trigger voltage/current (VGT max 0.8 V, IGT max 200 µA for the X0202 grade). |+| 2 | A | passive | Anode terminal of the SCR; conducts the on-state current (IT(RMS) = 1.25 A rms, IT(AV) = 0.8 A average, 180° conduction) and blocks the repetitive peak off-state/reverse voltage of 600 V (M grade) when the device is off. |+| 3 | G | input | Gate trigger input; injecting a current of 20 µA min / 200 µA max at a gate-to-cathode voltage VGT of 0.8 V max (X0202 grade) latches the SCR into conduction between anode and cathode. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | STMicroelectronics |+| Package | TO-92 |+| Category | Transistors/Thyristors |+| Pins | 3 |++## CAD (KiCad official)++- Symbol: `X0202MA 1BA2`+- Footprint: `Package_TO_SOT_THT:TO-92_Inline`+- 3D model: TO-92 (KiCad packages3D, STEP)+- 3D model files: `x0202ma-1ba2-etched.step` / `x0202ma-1ba2-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `x0202ma-1ba2.step` / `x0202ma-1ba2.glb` are the bare package body.++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [STMicroelectronics datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603087566338080768) (11 pp, sha256 `0ef7fc80b539119a`, retrieved 2026-09-29, 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](docs/x0202ma-1ba2-datasheet.pdf)
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