PJ-102A (DC barrel jack)

@@ -0,0 +1,45 @@+# PJ-102A++**CUI Devices** · DC power jack · Right-angle THT (2.0 mm pin)++DC power jack with a 2.0 mm center pin (5.5 mm outer barrel), right-angle through-hole mount, from CUI Devices. Rated 24 Vdc / 2.5 A with 30 mohm contact resistance. The switched contact (terminal 2) is normally shorted to the tip and opens when a plug is inserted, so you can detect external power or auto-disconnect a battery. The default DC input jack for boards powered from a wall adapter.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | TIP | passive | Center-pin contact (Ø2.0 mm tip). Connects to the center conductor of the mating DC plug; typically the positive supply node for center-positive adapters. Rated 24 Vdc / 2.5 A; copper with nickel plating. |+| 2 | SW | passive | Normally-closed switch contact. Mechanically shorted to terminal 3 (sleeve) when no plug is inserted, and opens when a plug is mated. Commonly used to auto-disconnect a battery when an external adapter is plugged in. Copper alloy with silver plating. |+| 3 | SLEEVE | passive | Outer sleeve/ring contact of the barrel jack; typically the ground/return for center-positive DC adapters. Mates with the outer body of the plug. Brass with silver plating. |++## Key specifications++| Parameter | Value |+|---|---|+| Type | DC power jack (barrel), switched |+| Center pin | 2.0 mm |+| Voltage rating | 24 Vdc |+| Current rating | 2.5 A |+| Contact resistance | 30 mΩ |+| Switch | Normally-closed (opens on insertion) |+| Mounting | Right-angle through-hole |++## Ordering variants++- `PJ-102A (right-angle THT, bulk)`++## CAD (KiCad official)++- Symbol: `Connector:Barrel_Jack_Switch`+- Footprint: `Connector_BarrelJack:BarrelJack_CUI_PJ-102AH_Horizontal`+- 3D model: generic barrel jack (KiCad lacks a PJ-102AH-specific model)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [CUI Devices datasheet](https://www.cuidevices.com/product/resource/pj-102a.pdf) (3 pp, sha256 `3d68931e9049c6bd`, retrieved 2026-08-17, tier: manufacturer)+- **Extractor:** `ds2sf` (Claude) — every pin and dimension is cited to a datasheet page; refuses to fabricate.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/pj-102a-datasheet.pdf)

@@ -0,0 +1,35 @@+{+  "slug": "pj-102a",+  "version": "0.1.0",+  "type": "component",+  "description": "CUI 2.0 mm DC barrel jack, right-angle THT. 24 Vdc, 2.5 A, switched. Datasheet-verified.",+  "tags": [+    "component",+    "connector",+    "power-jack",+    "barrel-jack",+    "through-hole",+    "cui-devices"+  ],+  "dependencies": {},+  "hero": {+    "type": "image",+    "path": "docs/hero.png"+  },+  "files": [+    "page.json",+    "README.md",+    "pj-102a.kicad_sym",+    "pj-102a.kicad_mod",+    "pj-102a.glb",+    "docs/hero.png",+    "docs/pj-102a-datasheet.pdf",+    "viewers/symbol.html",+    "viewers/footprint.html"+  ],+  "visibility": "public",+  "author": {+    "name": "Ray",+    "email": "[email protected]"+  }+}\ No newline at end of file