component
CHA444SR
Public Unreviewedby Ray
COSEMITECH Hall Sensor, SOT-23-3L. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownCHA444SR
COSEMITECH · Hall Sensor · SOT-23-3L
CHA444SR 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. Reverse-battery protected down to -22 V. |
| 2 | OUT | output | Open-collector output pin. Sinks up to 25 mA (short-circuit protected 30-90 mA). Output saturation voltage 0.4 V max at 20 mA; leakage 10 uA max at VOUT = 24 V. Requires external pull-up resistor. |
| 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.
CHA444SRCHA444SRTBCHA444SRER
CAD (KiCad official)
- Symbol:
CHA444SR - 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 (15 pp, sha256
bb180a03995d8124, 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).