# APX810S-44SR-7

**Diodes Incorporated** · Monitors & Reset Circuits · SOT-23

APX810S-44SR-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 and footprint from KiCad-official CAD; the 3D model is generated from the datasheet's package dimensions.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | RESET | output | Push-pull reset output that is active high for the APX810S, asserting whenever VCC falls below the reset threshold and remaining asserted for at least 240 ms after VCC rises back above it. |
| 2 | GND | power_in | Ground reference pin for the device. |
| 3 | VCC | power_in | Operating voltage input, recommended at 1.0 V to 5.5 V with an absolute maximum range of -0.3 V to 6.0 V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Diodes Incorporated |
| Package | SOT-23 |
| Category | Power Supply Chip |
| 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 Current | ICC |  | 7 | 16 | µA | VTH + 0.2V | 4 |
| Reset Threshold Voltage (APX810S-44) | VTH | 4.32 | 4.38 | 4.44 | V | TA = +25°C | 4 |
| Reset Active Timeout Period (APX810S-XX, 240 ms) | tDELAY | 140 | 240 | 280 | ms | VCC ≥ 1.02 x VTH | 4 |
| RESET Output Voltage Low (APX810S) | VOL |  |  | 0.3 | V | VCC = VTH + 0.2V, ISINK = 1.2mA | 4 |
| RESET Output Voltage Low (APX810S) | VOL |  |  | 0.4 | V | VCC = VTH + 0.2V, ISINK = 3.2mA | 4 |
| Operating Ambient Temperature Range | TA | -40 |  | 125 | °C |  | 3 |
| Supply Voltage | VCC | 1 |  | 5.5 | V |  | 3 |
| RESET Output Voltage | VRESET | 0 |  | 5.5 | V |  | 3 |
| Supply Voltage | VCC | -0.3 |  | 6 | V |  | 3 |
| RESET Voltage | VRESET | -0.3 |  | 6 | V |  | 3 |
| Input Current | ICC |  |  | 20 | mA |  | 3 |
| Output Current | IO |  |  | 20 | mA |  | 3 |
| Junction Temperature Range | TJ | -40 |  | 150 | °C |  | 3 |
| Storage Temperature Range | TSTG | -65 |  | 150 | °C |  | 3 |
| ESD Human Body Model |  |  |  | 6000 | V | HBM | 3 |
| ESD Machine Model |  |  |  | 600 | V | MM | 3 |
| Thermal Resistance Junction-to-Ambient (SOT23) | θJA |  | 232 |  | °C/W | SOT23 | 3 |
| Thermal Resistance Junction-to-Case (SOT23) | θJC |  | 87 |  | °C/W | SOT23 | 3 |

## CAD (land: KiCad; 3D: generated from the datasheet)

- Symbol: `APX810S-44SR-7`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23, generated on the KiCad land (body 1.3 x 2.9 mm, terminals on the pads, 1.025 mm tall, datasheet A, nominal). KiCad's stock model for this land is taller than the datasheet allows, so the model is generated from the datasheet drawing; the dimensions come from the datasheet drawing where it was read and are defaults otherwise (see provenance.model_3d_generated), not the manufacturer's CAD (STEP)
- 3D model files: `apx810s-44sr-7-etched.step` / `apx810s-44sr-7-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `apx810s-44sr-7.step` / `apx810s-44sr-7.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [Diodes Incorporated datasheet](https://www.diodes.com/assets/Datasheets/APX810S-44SR-7.pdf) (10 pp, sha256 `b644892b2c8d0948`, retrieved 2026-11-13, tier: manufacturer)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-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:** land: KiCad official libraries (CC-BY-SA 4.0); 3D: generated from the datasheet's package dimensions (provenance.model_3d_generated).

[Datasheet PDF](docs/apx810s-44sr-7-datasheet.pdf)