component
CH442SR
Public Made by Adomby adom
COSEMITECH Hall Sensor, SOT-23-3L. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+49@@ -0,0 +1,49 @@+# CH442SR++**COSEMITECH** · Hall Sensor · SOT-23-3L++CH442SR from COSEMITECH, in a SOT-23-3L. 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 | VDD | power_in | Supply voltage pin. Operating range 2.5 V to 22 V (absolute max 24 V); typical supply current 1.6 mA at 3.3 V. Integrated regulator and reverse-battery protection down to -22 V. |+| 2 | OUT | output | Open-collector output pin. Sinks up to 25 mA (VDSon <= 0.4 V at 20 mA); output leakage <= 10 uA at VOUT = 24 V. State latches based on magnetic polarity (BOP/BRP) per the CH442 switching function. |+| 3 | GND | power_in | Ground reference pin. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | COSEMITECH |+| Package | SOT-23-3L |+| Category | Sensor |+| Pins | 3 |++## Ordering variants++Same part, different packaging or reel option.++- `CH442SR`+- `CH442SRNSR`+- `CH442SRTB`+- `CH442SRNTB`+- `CH442SRER`+- `CH442SRNER`++## CAD (KiCad official)++- Symbol: `CH442SR`+- Footprint: `Package_TO_SOT_SMD:SOT-23-3`+- 3D model: SOT-23-3L (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [COSEMITECH datasheet](docs/ch442sr-datasheet.pdf) (14 pp, sha256 `d85c12a1c6a9bd48`, 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/ch442sr-datasheet.pdf)
page.jsonadded+34@@ -0,0 +1,34 @@+{+ "slug": "ch442sr",+ "version": "0.1.0",+ "type": "component",+ "description": "COSEMITECH Hall Sensor, SOT-23-3L. Datasheet-verified pinout, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "sensor",+ "ch442sr"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "ch442sr.kicad_sym",+ "ch442sr.kicad_mod",+ "ch442sr.glb",+ "ch442sr.step",+ "ch442sr.lbr",+ "docs/hero.png",+ "docs/ch442sr-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html"+ ],+ "visibility": "public",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}