component
BDH8181
Public Made by Adomby adom
Bardeen Micro Hall Switches, SOT-23-3. 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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Contents
README
markdownBDH8181
Bardeen Micro · Hall Switches · SOT-23-3
BDH8181 from Bardeen Micro, in a SOT-23-3. 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 | VCC | power_in | Supply voltage pin; the recommended operating supply range is 3.5 V to 24 V, and the absolute maximum supply voltage is -5 V to 30 V. |
| 2 | OUT | output | Open-collector output that sinks current when a north pole turns it ON; the continuous output sink current is limited to 25 mA and the output off voltage is 30 V maximum. |
| 3 | GND | power_in | Ground pin. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Bardeen Micro |
| Package | SOT-23-3 |
| 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 |
|---|---|---|---|---|---|---|---|
| Supply Voltage (absolute maximum) | VCC | -5 | 30 | V | 3 | ||
| Output Off Voltage | VCE | 30 | V | 3 | |||
| Output Sink Current (Continuous Current) | IOUT | 25 | mA | 3 | |||
| Power Dissipation | PD | 400 | mW | 3 | |||
| Storage Temperature | TS | -55 | 150 | °C | 3 | ||
| Junction Temperature | TJ | 125 | °C | 3 | |||
| ESD (Machine Model) | ESD | 300 | V | Machine Model | 3 | ||
| ESD (Human Body Model) | ESD | 4000 | V | Human Body Model | 3 | ||
| Supply Voltage (recommended operating) | VCC | 3.5 | 24 | V | TA=25°C | 3 | |
| Operating Temperature (recommended operating) | TOP | -40 | 125 | °C | TA=25°C | 3 | |
| Supply Voltage | VCC | 3.5 | 24 | V | Operating | 4 | |
| Supply Current | ICC | 2.5 | 5 | mA | Awake | 4 | |
| Output Leakage Current | ILEAK | 10 | μA | B</BRP/ | 4 | ||
| Output Saturation Voltage | VSAT | 110 | 300 | mV | IOUT =1.0mA | 4 | |
| Rise Time | tr | 0.2 | μs | Operating | 4 | ||
| Fall Time | Tf | 0.2 | μs | Operating | 4 | ||
| Operating point | BOP | 20 | 50 | Gauss | TA=25°C | 4 | |
| Releasing Point | BRP | -50 | -20 | Gauss | TA=25°C | 4 | |
| Hysteresis | BHYS | 40 | Gauss | TA=25°C | 4 |
Materials and finish
As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| housing | Abs | ESD (Human Body Model) ESD 4000 V Note 1: Stresses greater than those listed under “Absolute Maximum Ratings” may cause permanent | 3 |
CAD (KiCad official)
- Symbol:
BDH8181 - Footprint:
Package_TO_SOT_SMD:SOT-23-3 - 3D model: SOT-23-3 (KiCad packages3D, STEP)
- 3D model files:
bdh8181-etched.step/bdh8181-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bdh8181.step/bdh8181.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Bardeen Micro datasheet (8 pp, sha256
409dd2ff4c280ba1, retrieved 2026-10-17, tier: lcsc) - 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).