IRF540

@@ -0,0 +1,48 @@+# IRF540++**Vishay Siliconix** · N-channel power MOSFET · TO-220++A workhorse N-channel power MOSFET in TO-220, for switching motors, lamps, heaters, and DC-DC converters. It blocks 100 V drain-source, carries up to 28 A, and has an on-resistance around 0.077 ohm, so it dissipates little when fully on. It is a standard-gate (not logic-level) part: full enhancement needs about 10 V gate-source, so drive it from a gate driver or a 10-12 V rail rather than directly from 3.3 V logic (use the logic-level IRLZ44 for that). The tab and pin 2 are the drain. Pinout is G, D, S.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | G | input | Gate. Insulated MOS gate controlling drain-source channel conduction; VGS(th) 2.0 to 4.0 V, absolute maximum VGS = ±20 V. Drive with 10 V for full enhancement (RDS(on) = 0.077 Ω). |+| 2 | D | passive | Drain. High-side power terminal; VDS(max) = 100 V, continuous ID = 28 A (TC = 25 °C), pulsed IDM = 110 A. Electrically common with the metal mounting tab of the TO-220AB. |+| 3 | S | passive | Source. Low-side power terminal and reference for VGS; anode of the integral body diode (continuous IS = 28 A, VSD ≤ 2.5 V at 28 A). |++## Key specifications++| Parameter | Value |+|---|---|+| Type | N-channel power MOSFET |+| Drain-source (VDS) | 100 V |+| Continuous drain current (ID) | 28 A |+| RDS(on) | 0.077 Ω at VGS=10 V |+| Gate drive | standard (VGS=10 V for full on) |+| Power dissipation | 150 W |+| Tab | electrically Drain |+| Pinout | G-D-S |+| Package | TO-220 |++## Ordering variants++- `IRF540PbF (TO-220)`+- `IRF540 (TO-220, tube)`++## CAD (KiCad official)++- Symbol: `Transistor_FET:IRF540N`+- Footprint: `Package_TO_SOT_THT:TO-220-3_Vertical`+- 3D model: TO-220 (KiCad packages3D)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Vishay Siliconix datasheet](https://www.vishay.com/docs/91021/irf540.pdf) (7 pp, sha256 `7002a04312724c95`, retrieved 2026-08-17, tier: manufacturer)+- **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/irf540-datasheet.pdf)

@@ -0,0 +1,36 @@+{+  "slug": "irf540",+  "version": "0.1.0",+  "type": "component",+  "description": "Vishay N-channel power MOSFET, TO-220. 100 V, 28 A, RDS(on) 0.077 ohm. Standard-gate power switch. Datasheet-verified.",+  "tags": [+    "component",+    "transistor",+    "mosfet",+    "n-channel",+    "power",+    "to-220",+    "vishay"+  ],+  "dependencies": {},+  "hero": {+    "type": "image",+    "path": "docs/hero.png"+  },+  "files": [+    "page.json",+    "README.md",+    "irf540.kicad_sym",+    "irf540.kicad_mod",+    "irf540.glb",+    "docs/hero.png",+    "docs/irf540-datasheet.pdf",+    "viewers/symbol.html",+    "viewers/footprint.html"+  ],+  "visibility": "public",+  "author": {+    "name": "Ray",+    "email": "[email protected]"+  }+}\ No newline at end of file