YFW1012A-G

@@ -0,0 +1,47 @@+# YFW1012A-G++**YFW** · Bipolar (BJT) · SOT-223++YFW1012A-G from YFW, in a SOT-223. 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 | B | input | Base of the PNP transistor. Emitter-base breakdown voltage BVEBO = -5 V; base drive IB = -0.15 A used to achieve IC = -3 A saturation (VBE(on) = -1.2 V max). |+| 2 | C | passive | Collector of the PNP transistor (front-lead pin 2). Internally tied to the tab (pin 4). Collector-base breakdown BVCBO = -60 V, collector-emitter breakdown BVCEO = -50 V, IC(max) = -3 A, PC = 1 W. |+| 3 | E | passive | Emitter of the PNP transistor. Reference terminal for VCE and VBE; carries IE up to approximately -3 A in saturated operation. |+| 4 | C | passive | Collector tab (thermal pad) of the SOT-223. Electrically identical to pin 2; provides the primary thermal path to the PCB copper pour for dissipating up to 1 W. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | YFW |+| Package | SOT-223 |+| Category | Transistors/Thyristors |+| Pins | 4 |++## Ordering variants++Same part, different packaging or reel option.++- `YFW1012A-Y`+- `YFW1012A-G`+- `YFW1012A-B`++## CAD (KiCad official)++- Symbol: `YFW1012A-G`+- Footprint: `Package_TO_SOT_SMD:SOT-223-3_TabPin2`+- 3D model: SOT-223 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [YFW datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8604429693303345152) (None pp, sha256 `b7ef7d76bcfa5179`, 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](docs/yfw1012a-g-datasheet.pdf)

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