Specs side by side
2 parts compared · 17 differing specs across 17 total parameters.
| Parameter | ||
|---|---|---|
| Operating temperature | - | -40°C ~ 85°C |
| Voltage - Load | - | 50V |
| Voltage - Supply (vcc (vdd)) | - | Not Required |
| Case | DIP-16 / SOIC-16 | 16-SOIC (0.154\", 3.90mm Width) |
| Package | - | Tape & Reel (TR); Cut Tape (CT) |
| Component Category | Darlington Transistor Arrays | - |
| I/o Channels | - | 7 |
| Input Type | - | Inverting |
| Interface | - | Serial |
| Market Reality | The ULN2003A is the seven-channel Darlington driver of relays, steppers, lamps and appliance boards - a DIP-16 that turns any logic pin into a half-amp sink with built-in clamp diodes, present by the million in repair benches worldwide. Its family story is deceptively simple: TI, Toshiba, KEC and ON parts cross-reference freely - except across one invisible line. The 2003-class parts carry 2.7k input resistors for 5V logic; the 2004-class carry 10.5k for higher-voltage CMOS. The last digit (03 against 04, KID65003 against KID65004, TD62003 against TD62004) is that line, and the repair literature that lists them as one family is exactly how a correct-looking substitution under-drives its inputs. | - |
| Mounting | - | Surface Mount |
| Output Current | - | 500mA |
| Output Type | - | Darlington |
| Ratio - Input:output | - | 1:1 |
| Role In Circuit | Original Reference Part | - |
| Sourcing Status | Active Shenzhen Spot Sourcing (24–48h) | - |
| Type | - | Relay, Solenoid Driver |