component
AGM318D
Public Made by Adomby adom
AGM Semi MOSFETs, TO-252. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+45@@ -0,0 +1,45 @@+# AGM318D++**AGM Semi** · MOSFETs · TO-252++AGM318D from AGM Semi, in a TO-252. 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 | G | input | Gate. Insulated gate terminal controlling the N-channel MOSFET. Absolute maximum VGS = ±20V; gate threshold voltage VGS(th) = 1.2 V (min) / 1.6 V (typ) / 2.2 V (max) at ID=250 µA. |+| 2 | D | passive | Drain. Electrically connected to the exposed thermal tab (pin 4). Drain-source breakdown voltage BVDSS = 30V; continuous drain current ID = 20A (Tc=25°C); RDS(on) = 18 mΩ typ at VGS=10V, ID=15A. |+| 3 | S | passive | Source. Reference terminal of the N-channel MOSFET; body diode anode. Body diode forward voltage VSD ≤ 1.2V at IS=15A, VGS=0V. |+| 4 | D | passive | Drain (thermal tab). Exposed metal tab providing primary heat-sinking path; electrically identical to pin 2 (Drain). Junction-to-case thermal resistance RθJC = 3.4 °C/W. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | AGM Semi |+| Package | TO-252 |+| Category | Transistors/Thyristors |+| Pins | 4 |++## Ordering variants++Same part, different packaging or reel option.++- `AGM318D`++## CAD (KiCad official)++- Symbol: `AGM318D`+- Footprint: `Package_TO_SOT_SMD:TO-252-2`+- 3D model: TO-252 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [AGM Semi datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603106898917150720) (None pp, sha256 `64ca524549a66b86`, 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/agm318d-datasheet.pdf)
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