# APX803L40-40SA-7

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

APX803L40-40SA-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 | GND | power_in | Ground reference pin for the device. |
| 2 | RESET | output | Open-drain, active-low reset output with absolute maximum voltage of -0.3 V to 6.0 V and output current of 20 mA. |
| 3 | VCC | power_in | Operating voltage input with absolute maximum supply voltage of -0.3 V to 6.0 V and input current of 20 mA. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Diodes Incorporated |
| Package | SOT-23 |
| Category | Power Management ICs |
| 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 |
|---|---|---|---|---|---|---|---|
| Operating Ambient Temperature Range | TA | -40 |  | 85 | °C |  | 3 |
| Supply Voltage | VCC | 0.9 |  | 5.5 | V |  | 3 |
| Output Voltage | VRESET | 0 |  | 5.5 | V |  | 3 |
| Threshold Voltage Accuracy | ΔVTH | -1.5 |  | 1.5 | % | TA= +25°C | 3 |
| Reset Active Timeout Period (APX803L40-XX) | tDELAY | 292 | 450 | 608 | ms | VCC ≥ 1.02 x VTH | 3 |
| RESET Output Voltage Low | VOL |  |  | 0.4 | V | VCC = VTH -0.2, ISINK = 3.5mA | 3 |
| Supply Current | ICC |  | 1 | 2.5 | μA | VTH + 0.2V | 3 |
| Supply Voltage | VCC | -0.3 |  | 6 | V |  | 2 |
| RESET Voltage (Open Drain) | VRESET | -0.3 |  | 6 | V |  | 2 |
| Input Current | ICC |  |  | 20 | mA |  | 2 |
| Output Current | IO |  |  | 20 | mA |  | 2 |
| ESD HBM (Human Body Model) |  | -4000 |  | 4000 | V |  | 2 |
| ESD MM (Machine Model) |  | -200 |  | 200 | V |  | 2 |
| Junction Temperature Range | TJ | -40 |  | 150 | °C |  | 2 |
| Storage Temperature Range | TSTG | -65 |  | 150 | °C |  | 2 |
| Thermal Resistance Junction-to-Ambient | θJA |  |  | 200 | °C/W | SOT23 (row shared with SOT23R, SC59) | 2 |
| Thermal Resistance Junction-to-Case | θJC |  |  | 60 | °C/W | SOT23 (row shared with SOT23R, SC59) | 2 |
| Reset Threshold Voltage Temperature Coefficient | ΔVTH/VTH×ΔT |  | 50 |  | ppm/°C | TA = -40 to +85°C | 3 |
| VCC Drop to Delay | tS |  | 20 |  | µs | VCC = VTH to (VTH, 100mV) | 3 |

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

- Symbol: `APX803L40-40SA-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: `apx803l40-40sa-7-etched.step` / `apx803l40-40sa-7-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `apx803l40-40sa-7.step` / `apx803l40-40sa-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/APX803L40-40SA-7.pdf) (22 pp, sha256 `849cd25d6fd15081`, 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/apx803l40-40sa-7-datasheet.pdf)