component
HAL255SO
Public Made by Adomby adom
Hallwee Hall Switches, SOT-23-3L. Pinout cross-checked by two models against the datasheet, 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
markdownHAL255SO
Hallwee · Hall Switches · SOT-23-3L
HAL255SO from Hallwee, in a SOT-23-3L. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | VDD | power_in | Supply voltage pin; the datasheet gives an operating voltage of 2.2 to 5.0 V and an absolute maximum VDD of -0.3 to 5 V. |
| 2 | GND | power_in | Ground pin for the Hall sensor and output stage. |
| 3 | OUT | output | Push-pull output that goes high when the field on X, Y or Z exceeds the operating point and low when it falls below the release point; the datasheet's absolute maximum output voltage is -0.3 to 5 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Hallwee |
| Package | SOT-23-3L |
| Category | Magnetic Sensors |
| Pins | 3 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| 工作电压 (operating supply voltage) | VDD | 2.2 | 5 | V | 2 | ||
| 电源电压 (supply voltage, operating) | VDD | -0.3 | 5 | V | 2 | ||
| 工作温度范围 (operating temperature range) | TA | -40 | 85 | ℃ | 2 | ||
| 储存温度范围 (storage temperature range) | TS | -50 | 150 | ℃ | 2 | ||
| Z轴工作点 (Z-axis operate point) | BOP | 5 | 10 | 15 | GS | TA＝25℃，VDD＝2.8V; printed as +/-5, +/-10, +/-15 | 3 |
| Z轴磁滞 (Z-axis hysteresis) | BHYS | 5 | GS | TA＝25℃，VDD＝2.8V | 3 | ||
| 唤醒模式时间 (awake time) | TAW | 50 | uS | 2 | |||
| 休眠模式时间 (sleep time) | TSL | 100 | mS | 2 |
CAD (KiCad official)
- Symbol:
HAL255SO - Footprint:
Package_TO_SOT_SMD:SOT-23-3 - 3D model: SOT-23-3L (KiCad packages3D, STEP)
- 3D model files:
hal255so-etched.step/hal255so-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);hal255so.step/hal255so.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Hallwee datasheet (4 pp, sha256
ec2efe767b5d21f7, retrieved 2026-10-18, tier: lcsc) - Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-sonnet-5-5(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).