# ULN2003F

**Silicore(芯谷)** · Darlington Transistor Arrays · SOP-16

ULN2003F from Silicore(芯谷), in a SOP-16. 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 | I1 | input | Darlington channel 1 input; input voltage rated -0.5 to 30 V and continuous input current 25 mA max. |
| 2 | I2 | input | Darlington channel 2 input; input voltage rated -0.5 to 30 V and continuous input current 25 mA max. |
| 3 | I3 | input | Darlington channel 3 input; input voltage rated -0.5 to 30 V and continuous input current 25 mA max. |
| 4 | I4 | input | Darlington channel 4 input; input voltage rated -0.5 to 30 V and continuous input current 25 mA max. |
| 5 | I5 | input | Darlington channel 5 input; input voltage rated -0.5 to 30 V and continuous input current 25 mA max. |
| 6 | I6 | input | Darlington channel 6 input; input voltage rated -0.5 to 30 V and continuous input current 25 mA max. |
| 7 | I7 | input | Darlington channel 7 input; input voltage rated -0.5 to 30 V and continuous input current 25 mA max. |
| 8 | GND | power_in | Ground reference for the Darlington array emitters. |
| 9 | COMMON | passive | Common cathode of the output clamp diodes, connected to the inductive load supply for flyback clamping. |
| 10 | O7 | output | Channel 7 open-collector Darlington output, rated 500 mA continuous and 50 V max. |
| 11 | O6 | output | Channel 6 open-collector Darlington output, rated 500 mA continuous and 50 V max. |
| 12 | O5 | output | Channel 5 open-collector Darlington output, rated 500 mA continuous and 50 V max. |
| 13 | O4 | output | Channel 4 open-collector Darlington output, rated 500 mA continuous and 50 V max. |
| 14 | O3 | output | Channel 3 open-collector Darlington output, rated 500 mA continuous and 50 V max. |
| 15 | O2 | output | Channel 2 open-collector Darlington output, rated 500 mA continuous and 50 V max. |
| 16 | O1 | output | Channel 1 open-collector Darlington output, rated 500 mA continuous and 50 V max. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Silicore(芯谷) |
| Package | SOP-16 |
| Category | Transistors/Thyristors |
| Pins | 16 |

## 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 Voltage | VOUT | -0.5 |  | 50 | V |  | 2 |
| Input Voltage | VIN | -0.5 |  | 30 | V |  | 2 |
| Continuous Output Current (per channel) | IC |  |  | 500 | mA/ch |  | 2 |
| Continuous Input Current | IIN |  |  | 25 | mA |  | 2 |
| Power Dissipation (SOP16) | PD |  |  | 1.25 | W |  | 2 |
| Thermal Resistance Junction-Ambient, Max. (SOP16) | θJA |  |  | 120 | °C/W |  | 2 |
| Junction Temperature | TJ |  |  | 125 | °C |  | 2 |
| Operating Temperature | Tamb | -40 |  | 85 | °C |  | 2 |
| Storage Temperature | Tstg | -55 |  | 150 | °C |  | 2 |
| Output Leakage Current | ICEX |  |  | 100 | µA | Vo=50V, Tamb=+70℃ | 3 |
| Output Leakage Current | ICEX |  |  | 50 | µA | Vo=50V, Tamb=+25℃ | 3 |
| Collector-Emitter Saturation Voltage | VCES |  | 1.1 | 1.6 | V | Ic=350mA, IB=500μA | 3 |
| Collector-Emitter Saturation Voltage | VCES |  | 0.95 | 1.3 | V | Ic=200mA, IB=350μA | 3 |
| Collector-Emitter Saturation Voltage | VCES |  | 0.85 | 1.1 | V | Ic=100mA, IB=250μA | 3 |
| Input Current (ON) | II(ON) |  | 0.93 | 1.35 | mA | VI=3.85V | 3 |
| Input Voltage (ON) | VI(ON) |  |  | 2.4 | V | VCE=2.0V, Ic=200mA | 3 |
| Input Voltage (ON) | VI(ON) |  |  | 2.7 | V | VCE=2.0V, Ic=250mA | 3 |
| Input Voltage (ON) | VI(ON) |  |  | 3 | V | VCE=2.0V, Ic=300mA | 3 |
| Input Current (OFF) | II(OFF) |  | 50 | 100 | µA | VCE=2.0V, Ic=350mA | 3 |
| Input Capacitance | CI |  | 15 | 30 | pF |  | 3 |
| Turn-On Delay | tON |  | 0.25 | 1 | µS |  | 3 |
| Turn-Off Delay | tOFF |  | 0.25 | 1 | µS |  | 3 |
| Clamp Diode Leakage Current | IR |  |  | 50 | µA | VR=50V, Tamb=+25℃ | 3 |
| Clamp Diode Leakage Current | IR |  |  | 100 | µA | VR=50V, Tamb=+70℃ | 3 |
| Clamp Diode Forward Voltage | VF |  | 1.5 | 2 | V | IF=350mA | 3 |

## CAD (KiCad official)

- Symbol: `ULN2003F`
- Footprint: `Package_SO:SOIC-16_3.9x9.9mm_P1.27mm`
- 3D model: SOP-16 (KiCad packages3D, STEP)
- 3D model files: `uln2003f-etched.step` / `uln2003f-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `uln2003f.step` / `uln2003f.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Silicore(芯谷) datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8604435762477875200) (11 pp, sha256 `54b2238bb253f6e1`, retrieved 2026-10-19, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-opus-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).

[Datasheet PDF](docs/uln2003f-datasheet.pdf)