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ULN2001N

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HGSEMI Darlington Transistor Arrays, DIP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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ULN2001N

HGSEMI · Darlington Transistor Arrays · DIP-8

ULN2001N from HGSEMI, in a DIP-8. 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 Channel 1 Darlington base input, rated to 30 V absolute maximum (VI), with a 2.8 V to 12 V on-level (VIN(ON) at Iout=400mA) and a 0 V to 0.7 V off-level (VIN(OFF)).
2 2B input Channel 2 Darlington base input, rated to 30 V absolute maximum (VI), with a 2.8 V to 12 V on-level (VIN(ON) at Iout=400mA) and a 0 V to 0.7 V off-level (VIN(OFF)).
3 3B input Channel 3 Darlington base input, rated to 30 V absolute maximum (VI), with a 2.8 V to 12 V on-level (VIN(ON) at Iout=400mA) and a 0 V to 0.7 V off-level (VIN(OFF)).
4 E power_in Common emitter of the three Darlington channels, tied to ground, with a total peak emitter current limit of -2 A (IET).
5 COM passive Common terminal of the integrated flyback clamp diodes, rated to 50 V (VCOM) and 50 V clamp reverse voltage (VR), and used as the return for inductive-load clamping; the datasheet calls for a 104 capacitor from COM to ground when powering from a capacitive-dropper supply.
6 3C output Channel 3 Darlington collector output, rated to 50 V collector-emitter (VCE) and 500 mA peak collector current (ICP) per channel.
7 2C output Channel 2 Darlington collector output, rated to 50 V collector-emitter (VCE) and 500 mA peak collector current (ICP) per channel.
8 1C output Channel 1 Darlington collector output, rated to 50 V collector-emitter (VCE) and 500 mA peak collector current (ICP) per channel.

Key specifications

Parameter Value
Manufacturer HGSEMI
Package DIP-8
Category Transistors/Thyristors
Pins 8

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Output voltage VCE(SUS) 0 50 V 4
Output current, continuous per channel IOUT 90 mA/ch 持续输出,TA= +85℃ 4
Input voltage VIN 0 60 V 4
Input voltage, output on VIN(ON) 2.8 12 V Iout=400mA 4
Input voltage, output off VIN(OFF) 0 0.7 V 4
Clamp diode reverse voltage VR 50 V 4
Clamp diode forward peak current IF 350 mA 4
Operating temperature range TA -40 85 ℃ 4
Operating junction temperature TJ -40 125 ℃ 4
Power dissipation, DIP8 PD 1.15 W TA=+25℃ 4
Power dissipation, DIP8 PD 0.46 W TA=+85℃ 4
Collector-emitter voltage (pins 6-8) VCE 50 V 4
COM terminal voltage (pin 5) VCOM 50 V 4
Input voltage (pins 1-3) VI 30 V 4
Collector peak current ICP 500 mA 4
Clamp diode forward peak current IOK 500 mA 4
Total emitter peak current IET -2 A 4
Maximum junction temperature TJ 150 ℃ 4
Soldering temperature TLEAD 260 ℃ 焊接温度,10s 4
Storage temperature range Tstg -65 150 ℃ 4
Package thermal resistance, junction-to-ambient, DIP8 θJA 87 ℃/W DIP8, JESD51-7 4
On-state input voltage VI(ON) 1.73 2.1 V VCE=1.5V (输入不限流), TA=0℃, IC=30mA 5
On-state input voltage VI(ON) 1.76 2.1 V VCE=1.5V (输入不限流), TA=0℃, IC=60mA 5
On-state input voltage VI(ON) 1.8 2.2 V VCE=1.5V (输入不限流), TA=0℃, IC=120mA 5
On-state input voltage VI(ON) 1.88 2.3 V VCE=1.5V (输入不限流), TA=0℃, IC=240mA 5
On-state input voltage VI(ON) 2 2.4 V VCE=1.5V (输入不限流), TA=0℃, IC=350mA 5
On-state input voltage VI(ON) 1.63 2 V VCE=1.5V (输入不限流), TA=25℃, IC=30mA 5
On-state input voltage VI(ON) 1.66 2 V VCE=1.5V (输入不限流), TA=25℃, IC=60mA 5
On-state input voltage VI(ON) 1.69 2.1 V VCE=1.5V (输入不限流), TA=25℃, IC=120mA 5
On-state input voltage VI(ON) 1.76 2.2 V VCE=1.5V (输入不限流), TA=25℃, IC=240mA 5
On-state input voltage VI(ON) 1.87 2.3 V VCE=1.5V (输入不限流), TA=25℃, IC=350mA 5
On-state input voltage VI(ON) 2.25 2.7 V II=800uA (VCE<1.5V), TA=25℃, IC=30mA 5
On-state input voltage VI(ON) 2.28 2.74 V II=800uA (VCE<1.5V), TA=25℃, IC=60mA 5
On-state input voltage VI(ON) 2.33 2.8 V II=800uA (VCE<1.5V), TA=25℃, IC=120mA 5
On-state input voltage VI(ON) 2.44 2.93 V II=800uA (VCE<1.5V), TA=25℃, IC=240mA 5
On-state input voltage VI(ON) 2.57 3.08 V II=800uA (VCE<1.5V), TA=25℃, IC=350mA 5
On-state input voltage VI(ON) 2.6 3.12 V II=1mA (VCE<1.5V), TA=25℃, IC=30mA 5
On-state input voltage VI(ON) 2.64 3.17 V II=1mA (VCE<1.5V), TA=25℃, IC=60mA 5
On-state input voltage VI(ON) 2.7 3.24 V II=1mA (VCE<1.5V), TA=25℃, IC=120mA 5
On-state input voltage VI(ON) 2.83 3.4 V II=1mA (VCE<1.5V), TA=25℃, IC=240mA 5
On-state input voltage VI(ON) 2.98 3.58 V II=1mA (VCE<1.5V), TA=25℃, IC=350mA 5
Collector-emitter saturation voltage VCE(SAT) 0.75 V VI=2.4V (II>800uA), TA=25℃, IC=30mA 5
Collector-emitter saturation voltage VCE(SAT) 0.8 V VI=2.4V (II>800uA), TA=25℃, IC=60mA 6
Collector-emitter saturation voltage VCE(SAT) 0.87 V VI=2.4V (II>800uA), TA=25℃, IC=120mA 6
Collector-emitter saturation voltage VCE(SAT) 1.03 V VI=2.4V (II>800uA), TA=25℃, IC=240mA 6
Collector-emitter saturation voltage VCE(SAT) 1.2 V VI=2.4V (II>800uA), TA=25℃, IC=350mA 6
Input current II 6.3 mA IC=60mA, TA=25℃, VI=12V 6
Input current II 2.8 mA IC=60mA, TA=25℃, VI=6V 6
Input current II 1.97 mA IC=60mA, TA=25℃, VI=4.5V 6
Input current II 0.83 mA IC=60mA, TA=25℃, VI=2.4V 6
Clamp diode forward voltage VF 1.4 1.6 V IF=350mA, TA=0℃ 6
Collector off-state leakage current ICEX 50 µA VCE=50V, II=0 6
Collector breakdown voltage ICE 50 V VCE=50V, II=0 6
Clamp diode reverse breakdown voltage IR 50 V VR=50V 6
Clamp diode reverse leakage current IR 50 µA VR=50V 6
Propagation delay, low-to-high tPLH 0.15 1 µs VL=12V, RL=45Ω 6
Propagation delay, high-to-low tPLH 0.15 1 µs VL=12V, RL=45Ω 6

CAD (KiCad official)

  • Symbol: ULN2001N
  • Footprint: Package_DIP:DIP-8_W7.62mm
  • 3D model: DIP-8 (KiCad packages3D, STEP)
  • 3D model files: uln2001n-etched.step / uln2001n-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); uln2001n.step / uln2001n.glb are the bare package body.

Provenance

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

  • Datasheet: HGSEMI datasheet (13 pp, sha256 9340e94502ad9c2a, retrieved 2026-10-18, 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, 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: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF