# APX803S05-23SA-7

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

APX803S05-23SA-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 supervisor. |
| 2 | RESET | output | Active-low open-drain reset output; absolute maximum VRESET is -0.3 to 6 V and IO is limited to 20 mA, and it is guaranteed to be a logic low for VCC > 1 V. |
| 3 | VCC | power_in | Operating voltage input; recommended supply range is 1.0 V to 5.5 V, with an absolute maximum of -0.3 to +6.0 V. |

## 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 |
|---|---|---|---|---|---|---|---|
| Reset Threshold (APX803SXX-23, TA = +25°C) | VTH | 2.21 | 2.25 | 2.3 | V | TA = +25°C | 3 |
| Supply Current | ICC |  | 10 | 15 | μA | VTH + 0.2V | 3 |
| Reset Active Timeout Period (APX803S05-XX) | tDELAY | 20 | 50 | 70 | ms | VCC ≥ 1.02 x VTH | 3 |
| RESET Output Voltage Low | VOL |  |  | 0.3 | V | VCC = VTH -0.2V, ISINK = 1.2mA | 3 |
| RESET Output Voltage Low | VOL |  |  | 0.4 | V | VCC = VTH -0.2V, ISINK = 3.5mA | 3 |
| RESET Output High Leakage Current | IOH |  |  | 1 | µA | VCC > VTH +0.2V | 3 |
| Supply Voltage (recommended) | VCC | 1 |  | 5.5 | V |  | 3 |
| RESET Output Voltage (recommended) | VRESET | 0 |  | 5.5 | V |  | 3 |
| Operating Ambient Temperature Range | TA | -40 |  | 85 | °C |  | 3 |
| ESD HBM Human Body Model ESD Protection | ESD HBM |  |  | 3 | kV |  | 2 |
| ESD MM Machine Model ESD Protection | ESD MM |  |  | 400 | V |  | 2 |
| ESD CDM Charged Device Model ESD Protection | ESD CDM |  |  | 1500 | V |  | 2 |
| Supply Voltage (absolute maximum) | VCC | -0.3 |  | 6 | V |  | 2 |
| RESET (Open Drain) Voltage (absolute maximum) | VRESET | -0.3 |  | 6 | V |  | 2 |
| Input Current, VCC (absolute maximum) | ICC |  |  | 20 | mA |  | 2 |
| Output Current, RESET (absolute maximum) | IO |  |  | 20 | mA |  | 2 |
| Junction Temperature | TJ |  |  | 150 | °C |  | 2 |
| Storage Temperature Range | TST | -65 |  | 150 | °C |  | 2 |
| VCC Rate of Rise | dVCC/dt |  |  | 100 | V/µs | VCC = 0 to VT | 2 |
| Thermal Resistance Junction-to-Ambient (SOT23 Package) | θJA |  | 232 |  | °C/W | SOT23 package | 2 |
| Thermal Resistance Junction-to-Case (SOT23 Package) | θJC |  | 87 |  | °C/W | SOT23 package | 2 |
| Reset Threshold Tempco |  |  | 30 |  | ppm/°C | TA = -40°C to +85°C | 3 |
| VCC to RESET Delay | tS |  | 20 |  | µs | VCC = VTH to (VTH, 100mV) | 3 |

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

- Symbol: `APX803S05-23SA-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: `apx803s05-23sa-7-etched.step` / `apx803s05-23sa-7-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `apx803s05-23sa-7.step` / `apx803s05-23sa-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/APX803S05-23SA-7.pdf) (9 pp, sha256 `58d0867f60d9b289`, 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/apx803s05-23sa-7-datasheet.pdf)