component
OH9251-S
Public Made by Adomby adom
Nanjing Ouzhuo Tech Magnetic Sensors, TSOT-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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README
markdownOH9251-S
Nanjing Ouzhuo Tech · Magnetic Sensors · TSOT-23-3
OH9251-S from Nanjing Ouzhuo Tech, in a TSOT-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 | VDD | power_in | Supply voltage pin, operating range 1.65 V to 6 V (absolute maximum 7 V). |
| 2 | OUT | output | Totem-pole CMOS output that goes low when the magnetic field exceeds BOP of either pole and high below BRP, with 0.5 mA rated source/sink in the electrical table (1 mA absolute maximum, 7 V maximum). |
| 3 | GND | power_in | Ground reference pin. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Nanjing Ouzhuo Tech |
| Package | TSOT-23-3 |
| Category | 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 (abs max) | VCC | 7 | V | TA=25℃ | 2 | ||
| Supply Current (Fault) | ICC | 5 | mA | TA=25℃ | 2 | ||
| Output Voltage (abs max) | VOUT | 7 | V | TA=25℃ | 2 | ||
| Output Current | IOUT | 1 | mA | TA=25℃ | 2 | ||
| Storage Temperature | -65 | 150 | °C | TA=25℃ | 2 | ||
| Junction Temperature | 150 | °C | TA=25℃ | 2 | |||
| Operating Temperature Range | -40 | 85 | °C | 1 | |||
| Supply Voltage | VCC | 1.65 | 6 | V | Ta=25℃, VDD=1.8V | 3 | |
| Supply Current Awake | IAW | 1.4 | 3 | mA | Awake | 3 | |
| Supply Current Sleep | ISL | 3.6 | 7 | µA | Sleep | 3 | |
| Supply Current Average | IAVG | 5 | 10 | µA | Average | 3 | |
| Output Leakage Current | Ioff | 1 | µA | Output off | 3 | ||
| Output High Voltage | VOH | 0 | V | IOUT=0.5mA(Source); min printed as VDD-0.2 | 3 | ||
| Output Low Voltage | VOL | 0.2 | V | IOUT=0.5mA(Sink) | 3 | ||
| Awake Mode Time | tAW | 40 | 80 | µs | OPERATING | 3 | |
| Sleep Mode Time | tSL | 40 | 80 | ms | OPERATING | 3 | |
| Duty Cycle | D | 0.1 | % | 3 | |||
| Electro-Static Discharge HBM | HBM | 4 | KV | 3 | |||
| Operate Point South | BOPS | 30 | 55 | GS | South pole to branded side, B>BOPS, VOUT=low(output on) | 3 | |
| Operate Point North | BOPN | -55 | -30 | GS | North pole to branded side, B>BOPN, VOUT=low(output on) | 3 | |
| Release Point South | BRPS | 10 | 20 | GS | South pole to branded side, B<BRPS, VOUT=high(output off) | 3 | |
| Release Point North | BRPN | -20 | -10 | GS | North pole to branded side, B<BRPN, VOUT=high(output off) | 3 | |
| Hysteresis | BH | 10 | GS | /BOPX - BRPX/ | 3 |
CAD (KiCad official)
- Symbol:
OH9251-S - Footprint:
Package_TO_SOT_SMD:TSOT-23 - 3D model: TSOT-23-3 (KiCad packages3D, STEP)
- 3D model files:
oh9251-s-etched.step/oh9251-s-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);oh9251-s.step/oh9251-s.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Nanjing Ouzhuo Tech datasheet (4 pp, sha256
21ad428f4e55cb03, retrieved 2026-10-22, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-opus-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).