component
WH251E-3
Public Unreviewedby Ray
WILLSEMI Will Semicon Hall Sensor, TSOT-23-3L. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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markdownWH251E-3
WILLSEMI Will Semicon · Hall Sensor · TSOT-23-3L
WH251E-3 from WILLSEMI Will Semicon, in a TSOT-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 | Positive supply input, 1.65 V to 5 V operating (6 V absolute max). A 100 Ω series resistor is recommended for reverse-polarity protection; typical bypass is a 10 nF capacitor (C1) to GND per the application circuit. |
| 2 | Output | output | Totem-pole (push-pull) CMOS Hall switch output. Drives low when an operating-point magnetic flux ( |
| 3 | GND | power_in | Ground / negative supply return for the device. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | WILLSEMI Will Semicon |
| Package | TSOT-23-3L |
| Category | Sensor |
| Pins | 3 |
Ordering variants
Same part, different packaging or reel option.
WH251E-3/TR
CAD (KiCad official)
- Symbol:
WH251E-3 - Footprint:
Package_TO_SOT_SMD:SOT-23-3 - 3D model: TSOT-23-3L (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: WILLSEMI Will Semicon datasheet (12 pp, sha256
56fdee8ddbf6b1a5, 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).