component
AH3774-SA-7
Public Made by Adomby adom
Diodes Incorporated Hall Sensor, SOT-23. 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
markdownAH3774-SA-7
Diodes Incorporated · Hall Sensor · SOT-23
AH3774-SA-7 from Diodes Incorporated, in a SOT-23. 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 | Power supply input, operating range 3.0V to 28V (absolute maximum 32V), with a 10nF to 100nF bypass capacitor recommended. |
| 2 | GND | power_in | Ground pin. |
| 3 | OUTPUT | output | Open-drain output that is pulled low when B > Bop (South Pole), with a 30mA to 55mA current limit, a 28V maximum off-state voltage, and an external pull-up resistor RL required. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Diodes Incorporated |
| Package | SOT-23 |
| 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 |
|---|---|---|---|---|---|---|---|
| Output On Voltage | VOUT_ON | 0.2 | 0.4 | V | IOUT = 20mA, B > Bop | 3 | |
| Output Leakage Current | IOUT_OFF | 0.1 | 10 | µA | VOUT = 28V, B < Brp, Output Off | 3 | |
| Supply Current (25C) | IDD | 3 | mA | Output Open, TA = +25C | 3 | ||
| Supply Current | IDD | 4 | mA | Output Open, TA = -40°C to +125°C | 3 | ||
| Reverse Battery Current | IDD_R | -0.01 | 1 | mA | VDD = -18V, TA = -40°C to +125°C | 3 | |
| Reverse Battery Current | IDD_R | -0.01 | 1.5 | mA | VDD = -28V, TA = -40°C to +125°C | 3 | |
| Output Rising Time | tr | 0.2 | 1 | µs | RL =1kΩ, CL = 20pF | 3 | |
| Output Falling Time | tf | 0.1 | 1 | µs | RL =1kΩ, CL = 20pF | 3 | |
| Output Current Limit | IOCL | 30 | 55 | mA | B>Bop | 3 | |
| Zener Clamp Voltage | VZ | 28 | V | IDD = 5mA | 3 | ||
| Operation Point | Bop | 20 | 40 | 60 | Gauss | TA = -40°C to +125°C | 4 |
| Release Point | Brp | -60 | -40 | -20 | Gauss | TA = -40°C to +125°C | 4 |
| Hysteresis | Bhy | 40 | 80 | 120 | Gauss | TA = -40°C to +125°C | 4 |
| Supply Voltage | VDD | 32 | V | TA = +25°C | 3 | ||
| Reverse supply voltage | VDDR | -32 | V | TA = +25°C | 3 | ||
| Output off voltage | VOUT_MAX | 32 | V | TA = +25°C | 3 | ||
| Continuous output current | IOUT | 60 | mA | TA = +25°C | 3 | ||
| Reverse output current | IOUT_R | -50 | mA | TA = +25°C | 3 | ||
| Package Power Dissipation | PD | 230 | mW | SC59 and SOT23, TA = +25°C | 3 | ||
| Storage Temperature Range | Ts | -65 | 165 | °C | 3 | ||
| Maximum Junction Temperature | TJ | 150 | °C | 3 | |||
| ESD Human Body Model | ESD | 6 | kV | Human Body Model | 3 | ||
| Supply Voltage | VDD | 3 | 28 | V | Operating | 3 | |
| Operating Temperature Range | TA | -40 | 125 | °C | Operating | 3 | |
| Device Start-Up Time | tST | 10 | µs | VDD >= 3V, B > Bop | 3 | ||
| Chopping Frequency | fc | 800 | kHz | VDD >= 3V | 3 | ||
| Output delay time | td | 3.75 | µs | 3 |
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 Electrostatic Discharge Withstand Capability - Human Body Model 6 kV Notes: 5. Stresses greater than the “Absolute Maximum Ratings” specified above may cause permanent damage to the device. These | 3 |
CAD (KiCad official)
- Symbol:
AH3774-SA-7 - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
ah3774-sa-7-etched.step/ah3774-sa-7-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ah3774-sa-7.step/ah3774-sa-7.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Diodes Incorporated datasheet (14 pp, sha256
ddd08878841adfe6, retrieved 2026-10-22, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-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).