ULN2003A
- Mfr.Part #
- ULN2003A
- Manufacturer
- STMicroelectronics
- Package / Case
- 16-DIP (0.300, 7.62mm)
- Datasheet
- Download
- Description
- IC PWR RELAY 7NPN 1:1 16DIP
- Stock
- 3,784
- In Stock :
- 3,784
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- Manufacturer :
- STMicroelectronics
- Product Category :
- Power Distribution Switches, Load Drivers
- Operating Temperature :
- -40°C~85°C TA
- Collector Emitter Saturation Voltage :
- 1.1V
- Moisture Sensitivity Level (MSL) :
- 1 (Unlimited)
- Transistor Application :
- SWITCHING
- Current Rating :
- 500mA
- DC Current Gain (hFE) (Min) @ Ic, Vce :
- 1000 @ 350mA 2V
- Factory Lead Time :
- 15 Weeks
- Configuration :
- COMPLEX
- Terminal Finish :
- Matte Tin (Sn)
- RoHS Status :
- ROHS3 Compliant
- ECCN Code :
- EAR99
- Pin Count :
- 16
- Height :
- 4.59mm
- Number of Channels :
- 7
- Output Voltage :
- 50V
- Transistor Element Material :
- SILICON
- Number of Pins :
- 16
- Transistor Type :
- 7 NPN Darlington
- Max Collector Current :
- 500mA
- Number of Terminations :
- 16
- Radiation Hardening :
- No
- Terminal Position :
- Dual
- JESD-609 Code :
- e3
- Mounting Type :
- Through Hole
- Lead Free :
- Lead Free
- Length :
- 20mm
- Additional Feature :
- LOGIC LEVEL COMPATIBLE
- Package / Case :
- 16-DIP (0.300, 7.62mm)
- Contact Plating :
- Gold
- Collector Emitter Breakdown Voltage :
- 50V
- Vce Saturation (Max) @ Ib, Ic :
- 1.6V @ 500μA, 350mA
- REACH SVHC :
- No SVHC
- Max Power Dissipation :
- 2.25W
- Base Part Number :
- ULN2003
- Current - Collector Cutoff (Max) :
- 50μA
- Packaging :
- Tube
- Number of Elements :
- 7
- Mount :
- Through Hole
- Output Current :
- 500mA
- Collector Emitter Voltage (VCEO) :
- 50V
- Voltage - Rated DC :
- 50V
- Weight :
- 1.627801g
- Width :
- 7.1mm
- VCEsat-Max :
- 1.6 V
- Polarity :
- NPN
- Datasheets
- ULN2003A

Power Distribution Switches, Load Drivers STMicroelectronics ULN2003A Overview
The ULN2003A from STMicroelectronics is a high-voltage, high-current Darlington transistor array designed to efficiently drive a wide range of loads including solenoids, relays, DC motors, and LED displays. This IC integrates seven NPN Darlington pairs that feature high-voltage outputs with common-cathode clamp diodes for switching inductive loads. The collector-current rating of each channel is 500 mA, making it suitable for applications that require direct control of high-current loads through digital logic devices, such as microcontrollers and logic gates. With its robust design and versatile capabilities, the Power Distribution Switches, Load Drivers STMicroelectronics ULN2003A is an ideal choice for sophisticated designs requiring reliable power distribution and load driving solutions.
ULN2003A Features
- Seven Darlingtons per package
- Output current 500 mA per channel
- Output voltage 50 V
- Integrated suppression diodes for inductive load
- Inputs compatible with various types of logic, including TTL, CMOS, and PMOS
- Can be used with 5V logic levels
- Common-cathode clamp diodes across the output for transient suppression and free wheeling
ULN2003A Applications
- Driving Stepper Motors: The ULN2003A's ability to handle high-current and high-voltage makes it perfect for driving stepper motors in 3D printers, CNC machines, and other automated equipment.
- Relay Drivers: Utilizes its high current capability to drive multiple relays in applications such as home automation systems, allowing control of large power devices through simple digital logic.
- LED Displays: Capable of sinking enough current to power multiple segments of LED displays, suitable for advertising boards, scoreboards, and other visual output devices.
- Buffer Logic Levels: Acts as a buffer between logic levels and high-current loads, making it essential for use in mixed-voltage systems where interface compatibility is crucial.
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