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Part No ULN2803ADWR
Manufacturer Texas Instruments
Catalog Transistors (BJT) - Arrays
Description TRANS 8NPN DARL 50V 0.5A 18SO
Rohs State Need to verify

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Pricing & Ordering $1.999 Historical reference price : is the price that a customer announces that it is willing to pay for this component in the previous period, only for reference.
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Availability: 142,800 pieces
MOQ: 15 pcs
Order Increment : 1 pcs
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Products specifications

Categories Discrete Semiconductor Products
Manufacturer Texas Instruments
Packaging Reel - TR
Status Active
Transistor Polarity 8 NPN Darlington
Maximum Current Collector 500mA
VCEO Maximum Collector-Emitter Breakdown Voltage 50V
Max Vce (sat) 1.6V @ 500μA, 350mA
Temperature Range - Operating -40°C to 85°C (TA)
Mounting SMD (SMT)
Case / Package 18-SOIC
Win Source Part Number 035966-ULN2803ADWR
Family Name ULN2803A
Introduction Date February 01, 2006
Country of Origin Philippines, Thailand
Halogen Free Compliant
Estimated EOL Date 2027
Is this a common-used part? Yes
Popularity High
Fake Threat In the Open Market 71 pct.
Supply and Demand Status Sufficient
Application Field Used in Audio, Signal Processing, Industrial, Power Management
Alternative Parts
ULN2803AFW(M); ULN2804AFW(5,EL,M)ULN2803AFW(5,EL,M); 


Texas Instruments ULN2803ADWR

The ULN2803ADWR from Texas Instruments is a high-voltage, high-current Darlington transistor array designed to efficiently drive a wide array of loads, including solenoids, relays, DC motors, LED displays, and lamps. This integrated circuit (IC) is a crucial component for applications requiring the direct control of high-power devices from microcontroller or logic-level signals.

Key Features

  • Eight Darlington Pairs: Each pair is capable of driving loads up to 500 mA and can withstand a peak current of 600 mA, making it suitable for driving multiple devices simultaneously.
  • High Voltage Output: The output can sustain voltages up to 50V, providing the flexibility to control a variety of high-voltage devices.
  • Built-In Suppression Diodes: Integrated flyback diodes are included to manage inductive kickback, which is essential when controlling inductive loads such as motors or coils.
  • Output Clamp Diodes: Inputs and outputs are equipped with clamp diodes for transient suppression, ensuring the protection of the IC and the connected devices from voltage spikes.
  • Wide Operating Temperature Range: The device can operate within a temperature range of -20°C to 85°C, making it suitable for use in challenging environmental conditions.


The ULN2803ADWR is a versatile component used in a variety of applications across different industries. Its ability to interface with logic-level signals makes it an excellent choice for use in:

  • Automotive systems
  • Industrial controls
  • Consumer electronics
  • Instrumentation
  • Home automation

Package and Quality

The device comes in a surface-mount SOIC-18 wide body package, which is suitable for automated assembly processes and space-constrained applications. Texas Instruments ensures high manufacturing standards, with the ULN2803ADWR being RoHS compliant and lead-free, reflecting the company's commitment to environmental sustainability and quality assurance.

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