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  • (IC Chip) ULN2803
(IC Chip) ULN2803

(IC Chip) ULN2803

$0.10-$0.49/ Piece|5 Piece/Pieces(Min. Order)
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(IC Chip) ULN2803

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • High-Current Drive Capability: The ULN2803 IC chip is designed to handle high-current loads, enabling the control of motors, relays, LEDs, and other electrical components in electronic circuits.
  • Darlington Transistor Array: Features seven Darlington pairs in a single package, providing robust signal amplification and load switching for diverse applications.

Key features

  • 1. Corrosion-Resistant Material Technology

    • With a corrosion-resistant plastic body and gold-plated metal pins, you can ensure long-term durability and reliable electrical contact in harsh environments, outperforming uncoated alternatives*.

  • 2. User-Friendly Interactive Design

    • With a dual-in-line package (DIP), you can achieve 20% faster installation and easier handling compared to surface-mount ICs, ideal for DIY projects and prototyping*.

  • 3. High-Connectivity Performance

    • With an 18-pin configuration, you can support complex circuit designs and connect to multiple components, expanding functionality beyond basic ICs*.

  • 4. Versatile Scenario Solutions

    • Designed for both simple logic circuits and advanced systems, you can deploy this IC in home electronics, analog setups, and microcontroller applications for seamless adaptability*.

  • 5. Industry-Standard Compliance

    • With compliance to international safety and reliability standards, you can ensure trustworth performance in critical applications, backed by rigorous testing*.

Product details

(IC Chip) ULN2803

The ULN2803 IC chip is a high-performance integrated circuit housed in a dual-in-line package (DIP-18), designed for versatile applications in electronic systems. Its robust plastic body and gold-plated metal pins ensure durability and reliable electrical connections. Ideal for industrial controls, robotics, and PCB-based projects, this IC offers a balance of power handling and ease of use.

Technical specifications

FeatureSpecificationBenefit
Package TypeDIP-18 (Dual-In-Line, 18 pins)Easy manual handling and PCB integration
MaterialPlastic body with gold-plated pinsEnhanced corrosion resistance and durability
Current Capacity500mA per channel, 3.6A totalSupports heavy-load applications
Operating Voltage4.5V to 50VWide compatibility with diverse power sources
Application ScenarioIndustrial controls, motor drivers, LED arraysVersatile for both digital and analog systems

Customization guide

Adjustable parameters include pin material (e.g., tin-plated for cost-sensitive projects) and package type (e.g., SOIC for compact designs). For high-temperature environments, opt for reinforced plastic casings.

Get inspired

With its DIP-18 package, you can easily prototype circuits without specialized tools. The ULN2803’s 500mA per channel capability allows you to drive motors or LED arrays directly, making it perfect for robotics and automation projects.

Choose your model

ParameterBase Model (ULN2803)Advanced ModelPro Model
Current per Channel500mA+30% (650mA)+50% (750mA)*
Operating Temp Range-40°C to +85°CExtended (-55°C)Military-grade (-65°C)
Pin MaterialGold-platedSilver-platedRuthenium-plated**

Supplier's note

  1. Technical Breakthroughs:

    • High Current Handling: The Pro Model’s 750mA per channel outperforms industry standards by 50%, enabling reliable operation in industrial machinery.
    • Extended Temperature Range: The Advanced Model’s -55°C tolerance ensures stability in harsh environments like aerospace systems.
    • DIP-18 Compatibility: The base model’s standard package simplifies retrofits for legacy systems, reducing downtime.

  2. Optimal Version Selection:

    • Base Model: Ideal for hobbyists and small-scale projects requiring standard performance (e.g., Arduino-based robotics).
    • Advanced Model: Suited for automotive or IoT devices needing wider temperature resilience.
    • Pro Model: Best for industrial automation, where high-current loads and corrosion resistance are critical. With its ruthenium-plated pins, you can ensure longevity in chemical processing equipment.

*Enhanced via advanced plating techniques.
**Premium coating reduces oxidation by 40% compared to gold-plated pins.

Frequently asked questions

  • Q: Which IC chip suits driving multiple high-current devices like motors or solenoids in DIY electronics projects?

  • Q: How do I clean and maintain the metal pins of the ULN2803 DIP IC to ensure long-term reliability?

  • Q: What makes the ULN2803 DIP package better for prototyping compared to surface-mount ICs?

  • Q: Can the ULN2803 be customized for specific voltage or thermal requirements in industrial applications?

  • Q: Is the ULN2803 DIP IC compliant with international electronics manufacturing standards?

  • Q: How do I safely replace a damaged ULN2803 IC in a PCB circuit?

  • Q: What applications benefit from the ULN2803’s 18-pin DIP configuration?

  • Q: Why choose the ULN2803 over cheaper transistor arrays for high-reliability systems?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Darlington Array ConfigurationMotor control, relay drivers8 Darlington pairs (Industry: 7 pairs ▼)
500mA/channel (Advanced ▲▲)		Supports complex systems with more channels
Handles inductive loads		Higher cost than simpler arrays
Requires careful heat management
Voltage HandlingHigh-voltage industrial applications40V (Advanced ▲▲▲)
35V (Base ▲)
30V (Industry)		Safe for industrial voltages (e.g., 24V systems)
Wide operating range		Advanced versions may need heatsinks
Cost increases with voltage rating
Package TypeDIY/prototyping, PCB integrationDIP-18 (Industry standard)
Gold-plated pins (Advanced ▲▲)		Easy soldering and handling
Robust metal pins (ASTM B488 compliant)		Bulkier than SMD packages
Limited to through-hole PCBs
Current CapacityHigh-current loads (e.g., solenoids)500mA/channel (Advanced)
300mA (Base)
250mA (Industry)		Drives heavy loads reliably
Reduces need for external drivers		Advanced versions require thermal management
Base models may underperform
Thermal PerformanceHarsh environmental conditionsOperating temp: -40°C to +85°C (Advanced ▲▲)
Industry: -20°C to +70°C		Reliable in extreme temperatures (e.g., automotive)Advanced versions cost more
Requires heatsinks in high-power scenarios
Cost EfficiencyBudget-friendly projectsBase model ▲▲ (affordable)
Advanced ▲ (premium features)		Entry-level Base model ideal for basic applications
Cost-effective scaling		Advanced features add cost
Limited to specific high-end use cases

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