| Item | Spec.1 | Spec.2 | Spec.3 |
| Material | Plunger/Barrel: Brass | Spring: stainless steel | |
| Plating | Barrel: 0.1um gold plated, 1.4um nickel plated | Plunger: 0.4um gold plated, 1.4um nickel plated | |
| Electrical properties | Contact resistance: 30mOhm Max. | Rated voltage: 36V DC Max | Standard current: 2.0A |
| Mechanical properties | Durability: 10,000 cycle min. |