| PartNumber | SF4D-DC21V | SF4D-DC12V | SF4D-DC5V |
| Description | General Purpose Relays FACTORY NOT ACCEPTING ORDERS | General Purpose Relays 6A 12V 4FORMA/4FORMB PCB | General Purpose Relays Polarized PowerRelay 4 Form A 4 Form B |
| Manufacturer | Panasonic | Panasonic | Panasonic |
| Product Category | General Purpose Relays | General Purpose Relays | General Purpose Relays |
| RoHS | Y | E | Y |
| Product | Power Relays | Power Relays | Power Relays |
| Series | SF-D | SF-D | SF-D |
| Packaging | Bulk | Tray | Bulk |
| Brand | Panasonic Industrial Devices | Panasonic Industrial Devices | Panasonic Industrial Devices |
| Product Type | General Purpose Relays | General Purpose Relays | General Purpose Relays |
| Factory Pack Quantity | 20 | 20 | 20 |
| Subcategory | Relays | Relays | Relays |
| Type | - | Polarized | - |
| Coil Voltage | - | 12 VDC | 5 VDC |
| Relay Contact Form | - | 3 Form A (3PST-NO), 1 Form B (SPST-NC) | 4 Form A (4PST-NO), 4 Form B (4PST-NC) |
| Contact Termination | - | Solder Pin | - |
| Mounting Style | - | Through Hole | Through Hole |
| Coil Termination | - | Solder Pin | - |
| Coil Resistance | - | 288 Ohms | 50 Ohms |
| Coil Current | - | 41.7 mA | 100 mA |
| Contact Material | - | Silver Alloy (Ag) | Silver Alloy (Ag) with Gold Plating |
| Contact Form | - | 3PST (3 Form A), SPST (1 Form B) | 4PST (4 Form A), 4PST (4 Form B) |
| Power Consumption | - | 500 mW | - |
| Contact Current Rating | - | - | 6 A |
| Switching Voltage | - | - | 440 VAC, 20 VDC |