component
ULN2803AN
Public Made by Adomby adom
lingxingic Darlington Transistor Arrays, DIP-18. 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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README
markdownULN2803AN
lingxingic · Darlington Transistor Arrays · DIP-18
ULN2803AN from lingxingic, in a DIP-18. 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 | 1B | input | Base input of Darlington channel 1, with a 2.7 kΩ series base resistor; absolute maximum input voltage is -0.5 to 30 V and recommended input voltage is 0 to 24 V, compatible with TTL/CMOS logic. |
| 2 | 2B | input | Base input of Darlington channel 2, with a 2.7 kΩ series base resistor; absolute maximum input voltage is -0.5 to 30 V and recommended input voltage is 0 to 24 V, compatible with TTL/CMOS logic. |
| 3 | 3B | input | Base input of Darlington channel 3, with a 2.7 kΩ series base resistor; absolute maximum input voltage is -0.5 to 30 V and recommended input voltage is 0 to 24 V, compatible with TTL/CMOS logic. |
| 4 | 4B | input | Base input of Darlington channel 4, with a 2.7 kΩ series base resistor; absolute maximum input voltage is -0.5 to 30 V and recommended input voltage is 0 to 24 V, compatible with TTL/CMOS logic. |
| 5 | 5B | input | Base input of Darlington channel 5, with a 2.7 kΩ series base resistor; absolute maximum input voltage is -0.5 to 30 V and recommended input voltage is 0 to 24 V, compatible with TTL/CMOS logic. |
| 6 | 6B | input | Base input of Darlington channel 6, with a 2.7 kΩ series base resistor; absolute maximum input voltage is -0.5 to 30 V and recommended input voltage is 0 to 24 V, compatible with TTL/CMOS logic. |
| 7 | 7B | input | Base input of Darlington channel 7, with a 2.7 kΩ series base resistor; absolute maximum input voltage is -0.5 to 30 V and recommended input voltage is 0 to 24 V, compatible with TTL/CMOS logic. |
| 8 | 8B | input | Base input of Darlington channel 8, with a 2.7 kΩ series base resistor; absolute maximum input voltage is -0.5 to 30 V and recommended input voltage is 0 to 24 V, compatible with TTL/CMOS logic. |
| 9 | E | power_in | Emitter/ground pin (地) of the Darlington array, which is the ground reference for all channels. |
| 10 | COM | power_in | Common terminal for the internal clamp diodes; COM voltage is limited to 50 V, and the datasheet requires it to be connected to the supply to protect the device from overshoot voltage. |
| 11 | 8C | output | Open-collector Darlington output of channel 8 with internal clamp diode; collector-emitter voltage is limited to -0.5 to 50 V and single-channel output current to 500 mA. |
| 12 | 7C | output | Open-collector Darlington output of channel 7 with internal clamp diode; collector-emitter voltage is limited to -0.5 to 50 V and single-channel output current to 500 mA. |
| 13 | 6C | output | Open-collector Darlington output of channel 6 with internal clamp diode; collector-emitter voltage is limited to -0.5 to 50 V and single-channel output current to 500 mA. |
| 14 | 5C | output | Open-collector Darlington output of channel 5 with internal clamp diode; collector-emitter voltage is limited to -0.5 to 50 V and single-channel output current to 500 mA. |
| 15 | 4C | output | Open-collector Darlington output of channel 4 with internal clamp diode; collector-emitter voltage is limited to -0.5 to 50 V and single-channel output current to 500 mA. |
| 16 | 3C | output | Open-collector Darlington output of channel 3 with internal clamp diode; collector-emitter voltage is limited to -0.5 to 50 V and single-channel output current to 500 mA. |
| 17 | 2C | output | Open-collector Darlington output of channel 2 with internal clamp diode; collector-emitter voltage is limited to -0.5 to 50 V and single-channel output current to 500 mA. |
| 18 | 1C | output | Open-collector Darlington output of channel 1 with internal clamp diode; collector-emitter voltage is limited to -0.5 to 50 V and single-channel output current to 500 mA. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | lingxingic |
| Package | DIP-18 |
| Category | Transistors/Thyristors |
| Pins | 18 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| 集电极-发射极电压（1C～8C） | VCE | -0.5 | 50 | V | 5 | ||
| COM 端电压 | VCOM | 50 | V | 5 | |||
| 输入端电压（1B～8B） | VIN | -0.5 | 30 | V | 5 | ||
| 输出电流（单路） | IOUT | 500 | mA/ch | 5 | |||
| 续流二极管正向电流 | IF | 500 | mA | 5 | |||
| 最高工作结温 | TJ | 150 | ℃ | 5 | |||
| 储存温度范围 | Tstg | -65 | 150 | ℃ | 5 | ||
| 焊接温度 | TL | 245 | ℃ | 10 秒, DIP | 5 | ||
| 集电极-发射极电压（1C～8C） | VCE | 0 | 50 | V | 6 | ||
| COM 端电压 | VCOM | 0 | 50 | V | 6 | ||
| 输入电压（1B～8B） | VIN | 0 | 24 | V | 6 | ||
| 输出电流（DIP18，占空比 10%） | IOUT | 0 | 350 | mA | TPW=25ms, 8 通道, Tamb=85℃, TJ=120℃, 占空比 10% | 6 | |
| 输出电流（DIP18，占空比 50%） | IOUT | 0 | 100 | mA | TPW=25ms, 8 通道, Tamb=85℃, TJ=120℃, 占空比 50% | 6 | |
| 钳位二极管反向电压 | VR | 50 | V | 6 | |||
| 钳位二极管正向电流 | IF | 350 | mA | 6 | |||
| 工作温度范围 | Tamb | -40 | 85 | ℃ | 6 | ||
| 输出漏电流 | ILEAK | 50 | uA | VCE=50V，VIN=0V | 6 | ||
| 输出漏电流 | ILEAK | 100 | uA | VCE=50V，VIN=0V，Tamb=85℃ | 6 | ||
| 集电极-发射极饱和压降 | VCEO(SAT) | 1.3 | 1.6 | V | IOUT=350mA，IIN=500uA | 6 | |
| 集电极-发射极饱和压降 | VCEO(SAT) | 1.1 | 1.3 | V | IOUT=200mA，IIN=350uA | 6 | |
| 集电极-发射极饱和压降 | VCEO(SAT) | 0.9 | 1.1 | V | IOUT=100mA，IIN=250uA | 6 | |
| 直流电流传输比 | hFE | 1000 | VCE=2V，IOUT=350mA | 6 | |||
| 输入电流（开） | IIN(ON) | 0.4 | 0.7 | mA | VIN=2.4V，IOUT=350mA | 6 | |
| 输入电流（关） | IIN(OFF) | 50 | 65 | uA | IOUT=500uA，Tamb=85℃ | 6 | |
| 输入电压（开） | VIN(ON) | 2.4 | V | VCE=2V，IOUT=350mA | 6 | ||
| 输入电压（开） | VIN(ON) | 2 | V | VCE=2V，IOUT=200mA | 6 | ||
| 续流二极管反向电流 | IR | 50 | uA | VR=50V | 6 | ||
| 续流二极管正向电压 | VF | 2 | V | IF=350mA | 6 | ||
| 热阻 θJA（DIP18） | θJA | 80 | ℃/W | 注1、注2：JEDEC 2S2P | 5 | ||
| 输入基极串联电阻 | 2.7 | K | 3 |
CAD (KiCad official)
- Symbol:
ULN2803AN - Footprint:
Package_DIP:DIP-18_W7.62mm - 3D model: DIP-18 (KiCad packages3D, STEP)
- 3D model files:
uln2803an-etched.step/uln2803an-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);uln2803an.step/uln2803an.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: lingxingic datasheet (13 pp, sha256
4aadf36f2e1e5a70, retrieved 2026-10-15, tier: lcsc) - Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- 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: KiCad official libraries (CC-BY-SA 4.0).