| PartNumber | ALZ51B12T | ALZ51B18TW | ALZ51B18T |
| Description | General Purpose Relays 1 FORMA 12V CLASS B FLUX-RESISTANT | General Purpose Relays LZ Relays (ALZ) | General Purpose Relays LZ Relays (ALZ) |
| Manufacturer | Panasonic | Panasonic | Panasonic |
| Product Category | General Purpose Relays | General Purpose Relays | General Purpose Relays |
| RoHS | Y | - | - |
| Product | Power Relays | Power Relays | Power Relays |
| Type | Miniature | - | - |
| Coil Voltage | 12 VDC | 18 VDC | 18 VDC |
| Relay Contact Form | 1 Form A (SPST-NO) | - | - |
| Contact Current Rating | 16 A | - | - |
| Mounting Style | Through Hole | - | - |
| Switching Voltage | 440 VAC | - | - |
| Coil Type | Non-Latching | - | - |
| Coil Resistance | 360 Ohms | - | - |
| Coil Current | 33.3 mA | - | - |
| Contact Material | Silver Tin Oxide (AgSnO) | - | - |
| Length | 28.8 mm | - | - |
| Width | 12.5 mm | - | - |
| Height | 15.7 mm | - | - |
| Packaging | Tube | Bulk | Tube |
| Contact Form | SPST (1 Form A) | - | - |
| Power Consumption | 400 mW | - | - |
| 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 | 100 | 20 |
| Subcategory | Relays | Relays | Relays |