XD2003 – Darlington Transistor Array – Xinluda

The Xinluda XD2003 is a 7-channel high-voltage, high-current Darlington transistor array (ULN2003-class sink driver) with 500 mA open-collector outputs, a common-cathode clamp diode, and TTL/5 V CMOS-compatible inputs, supplied in a DIP-16 package.

The Xinluda XD2003 is a high-voltage, high-current 7-channel Darlington transistor array functionally aligned with the industry-standard ULN2003 family. Each of its seven open-collector NPN Darlington pairs is rated for up to 500 mA of collector current and a 50 V output, making the device a workhorse interface for driving inductive and high-current loads directly from low-power logic. An integrated common-cathode clamp (free-wheeling) diode network provides built-in protection when switching relays, solenoids, and other inductive loads, while the inputs are compatible with 5 V TTL and CMOS logic levels.

Key Features

• Seven NPN Darlington pairs (7-channel sink driver)
• 500 mA rated collector current per channel
• 50 V maximum output voltage (open-collector outputs)
• Integrated common-cathode clamp (free-wheeling) diode for inductive-load switching
• Inputs compatible with 5 V TTL and CMOS logic
• Outputs can be paralleled for higher current capability
• DIP-16 package
• Operating temperature range -20°C to +85°C

Applications

• Relay and solenoid drivers
• Stepper and DC motor drivers
• LED and gas-discharge display drivers
• Logic-to-high-current interface and buffering
• Thermal printhead and hammer drivers

Why Source XD2003 from Pacific Component Xchange

The XD2003 is a Xinluda-branded part with limited authorized-distributor coverage, which can make it difficult to procure through mainstream channels. Pacific Component Xchange specializes in sourcing hard-to-find and obsolete power-management ICs and driver components like the XD2003. We help engineers and buyers secure authentic, traceable inventory with global shipping and responsive support. Whether you need a small quantity for a prototype run or volume quantities for production, our team can locate the XD2003 and verify authenticity before it ships. Request a quote (RFQ) today and our sourcing specialists will respond with availability and pricing.