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| Part Number | ULN2001A | ULN2002A | ULN2004A | ULN2003A |
|---|---|---|---|---|
| Manufacturer | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Product Status | Active | Active | Active | Active |
| Switch Type | Relay, Solenoid Driver | Relay, Solenoid Driver | Relay, Solenoid Driver | Relay, Solenoid Driver |
| Number of Outputs | 7 | 7 | 7 | 7 |
| Ratio - Input:Output | 1:1 | 1:1 | 1:1 | 1:1 |
| Output Configuration | Low Side | Low Side | Low Side | Low Side |
| Output Type | NPN | NPN | NPN | NPN |
| Interface | Parallel | Parallel | Parallel | Parallel |
| Voltage - Load | 50V (Max) | 50V (Max) | 50V (Max) | 50V (Max) |
| Voltage - Supply (Vcc/Vdd) | Not Required | Not Required | Not Required | Not Required |
| Current - Output (Max) | 500mA | 500mA | 500mA | 500mA |
| Rds On (Typ) | - | - | - | - |
| Input Type | Inverting | Inverting | Inverting | Inverting |
| Features | - | - | - | - |
| Fault Protection | - | - | - | - |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) |
| Mounting Type | Through Hole | Through Hole | Through Hole | Through Hole |
| Supplier Device Package | 16-DIP | 16-DIP | 16-DIP | 16-DIP |
| Package / Case | 16-DIP (0.300", 7.62mm) | 16-DIP (0.300", 7.62mm) | 16-DIP (0.300", 7.62mm) | 16-DIP (0.300", 7.62mm) |
