Texas Instruments High-Performance Analog Bipolar Transistor Arrays ULN2003ADE4

The ULN2003A series is a high-voltage, high-current Darlington transistor array with seven NPN Darlington pairs, each rated for 500mA collector current and capable of switching up to 50V. Each channel includes integrated clamp diodes for inductive load suppression and a 2.7kΩ series base resistor for direct TTL or 5V CMOS logic compatibility. The device is available in multiple packages including SOIC (16), PDIP (16), SOP (16), TSSOP (16), and SOT-23-THIN (16), with a typical SOIC package measuring 9.90mm × 3.91mm. It operates over a temperature range of -40°C to 70°C and meets RoHS standards. Junction-to-ambient thermal resistance is 88.6°C/W in the SOIC package.