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APX809S05-31SR-7
Public Made by Adomby adom
Diodes Incorporated Monitors & Reset Circuits, 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
markdownAPX809S05-31SR-7
Diodes Incorporated · Monitors & Reset Circuits · SOT-23
APX809S05-31SR-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 active-low reset output (APX809S) that asserts when VCC falls below the reset threshold and stays asserted for at least 240 ms after VCC rises above it; guaranteed logic state down to VCC = 1 V, with VOL of 0.3 V to 0.4 V max and VOH of at least 0.8VCC at the stated load conditions. |
| 2 | GND | power_in | Ground reference pin for the device. |
| 3 | VCC | power_in | Operating voltage input; the recommended supply range is 1.0 V to 5.5 V, with an absolute maximum 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 |
|---|---|---|---|---|---|---|---|
| Reset Threshold Voltage (APX809SXX-31 variant) | VTH | 3.04 | 3.08 | 3.12 | V | TA = +25°C | 4 |
| Reset Active Timeout Period (APX809S05 / 810S05) | tDELAY | 20 | 50 | 70 | ms | VCC ≥ 1.02 x VTH | 4 |
| Supply Current | ICC | 7 | 16 | μA | VTH + 0.2V | 4 | |
| RESET Output Voltage Low (APX809S) | VOL | 0.3 | V | VCC = VTH - 0.2V, ISINK = 1.2mA | 4 | ||
| RESET Output Voltage Low (APX809S) | 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/RESET Output Voltage | VRESET | 0 | 5.5 | V | 3 | ||
| Supply Voltage | VCC | -0.3 | 6 | V | 3 | ||
| RESET/RESET Voltage | VRESET | -0.3 | 6 | V | 3 | ||
| Input Current | ICC | 20 | mA | 3 | |||
| Output Current | IO | 20 | mA | 3 | |||
| ESD HBM (Human Body Model) | ESD | 6000 | V | HBM | 3 | ||
| ESD MM (Machine Model) | ESD | 600 | V | MM | 3 | ||
| Junction Temperature Range | TJ | -40 | 150 | °C | 3 | ||
| Storage Temperature Range | TSTG | -65 | 150 | °C | 3 | ||
| Thermal Resistance Junction-to-Ambient | θJA | 232 | °C/W | SOT23 | 3 | ||
| Thermal Resistance Junction-to-Case | θJC | 87 | °C/W | SOT23 | 3 |
CAD (land: KiCad; 3D: generated from the datasheet)
- Symbol:
APX809S05-31SR-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:
apx809s05-31sr-7-etched.step/apx809s05-31sr-7-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);apx809s05-31sr-7.step/apx809s05-31sr-7.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Diodes Incorporated datasheet (10 pp, sha256
b644892b2c8d0948, retrieved 2026-11-13, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-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: land: KiCad official libraries (CC-BY-SA 4.0); 3D: generated from the datasheet's package dimensions (provenance.model_3d_generated).