ULN2803AN(XBLW) – 8-Channel Darlington Array by XBLW for High-Current Switching
The Darlington Transistors ULN2803AN(XBLW) by XBLW are high-voltage, high-current Darlington arrays designed for interfacing logic-level outputs to high-power loads. With 8 channels integrated in a single DIP-18 package, these transistors are widely used in relay driving, LED control, and motor interface circuits in both consumer and industrial systems.
In this blog, we’ll cover the technical specifications, standout features, wiring guide, real-world applications, and how to buy or download the datasheet from Xon Electronics.
Technical Specifications of ULN2803AN(XBLW)
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Manufacturer: XBLW
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Part Number: ULN2803AN(XBLW)
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Type: Darlington Transistor Array
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Number of Channels: 8
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Output Current (per channel): 500 mA
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Output Voltage: Up to 50V
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Input Compatibility: TTL/CMOS logic
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Package: DIP-18 (Dual In-Line Package)
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Integrated Clamp Diodes: Yes, for inductive load protection
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Category: Transistors, Darlington Transistors by XBLW
The ULN2803AN(XBLW) Darlington Transistors by XBLW offer a reliable, compact solution for driving multiple loads from a single logic controller or microcontroller unit.
Key Features of ULN2803AN(XBLW)
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8 Darlington Pairs in One Package – Saves space and simplifies wiring
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High Output Current (500mA/channel) – Ideal for relays, solenoids, and lamps
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Built-In Flyback Diodes – Protects against back-EMF in inductive loads
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TTL & CMOS Compatible Inputs – Easy interfacing with most digital logic circuits
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Wide Voltage Range Support – Handles loads up to 50V DC
These advantages make Darlington Transistors by XBLW perfect for designers seeking compact and efficient solutions for medium-power switching applications.
Applications of ULN2803AN(XBLW)
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Relay and Solenoid Driving
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LED Displays and Matrix Control
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Stepper Motor Interfaces
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Industrial Automation Systems
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Home Appliances and IoT Devices
With integrated protection and high output capabilities, the ULN2803AN(XBLW) Darlington Transistors by XBLW are a staple in robust switching systems across multiple industries.
Wiring and Usage Overview
Typical wiring for ULN2803AN(XBLW):
[Inputs (Pins 1–8)] ? Connect to microcontroller or logic output
[Outputs (Pins 11–18)] ? Connect to load (relays, LEDs, etc.)
[Pin 9 – COM] ? Tie to load supply for flyback protection
[Pin 10 – GND] ? Connect to system ground
This straightforward interface enables designers to control high-power loads safely using standard logic-level signals.
Use Case Scenario – Multi-Relay Control in Home Automation
Scenario: A home automation developer needed to control 8 relays for lights, fans, and door locks using a microcontroller.
Problem: Direct driving from the MCU pins wasn’t possible due to current limitations.
Solution: The ULN2803AN(XBLW) enabled smooth switching of all relays with built-in protection.
Result: Simplified PCB layout, reduced external components, and enhanced system reliability.
This example highlights why engineers prefer Darlington Transistors by XBLW for intelligent control solutions.
Download Datasheet for ULN2803AN(XBLW)
Need detailed electrical specs, pin diagrams, and timing characteristics?
[Download ULN2803AN(XBLW) Datasheet from Xon Electronics]
Why Buy from Xon Electronics?
Xon Electronics is your trusted source for Darlington Transistors by XBLW, including ULN2803AN(XBLW):
- 100% Genuine XBLW Components
- Global Shipping – USA, India, Australia, Europe & more
- Bulk Availability for OEMs and Makers
- Technical Support for Integration Projects
- Fast, Secure Online Ordering
Order now from www.xonelec.com and power your high-current switching needs with XBLW's proven reliability.
Conclusion
The ULN2803AN(XBLW) Darlington Transistors by XBLW offer an all-in-one solution for logic-to-load interfacing, featuring high output current, built-in protection, and ease of use. Whether you're building relay banks, motor controllers, or LED arrays, trust Darlington Transistors by XBLW for dependable performance—available globally from Xon Electronics.
FAQs – ULN2803AN(XBLW) Darlington Array
Q1. How many outputs does ULN2803AN(XBLW) have?
It offers 8 independent Darlington outputs.
Q2. What’s the maximum current per channel?
Each channel can handle up to 500mA.
Q3. Does it include protection diodes?
Yes, internal clamp diodes are included for inductive load protection.
Q4. What package does it use?
DIP-18 for through-hole mounting.
Q5. Where can I buy it globally?
At www.xonelec.com with delivery to USA, India, Australia, Europe, and other countries.