2Pcs ULN2803A Driver High Voltage Darlington Tube Electric Component For Relay D The ULN2803A device is a 50 V, 500 mA Darlington transistor array. Each Darlington pair of ULN2803A devices has a 2.7kΩ series base resistance and can work directly with TTL or 5V CMOS devices. Item Type: ULN2803A module. byJuly 5, 2026
