Your vending machine relay just clicked its last click, or the office copier's control board is throwing a fault code that points straight at a dead PCB relay. You don't need a generic swap that fails in a month. You need the exact spec, on your bench this week. This Panasonic JS series relay handles 10A at 100VDC or 277VAC in a 20 × 16 mm footprint. SPST or SPDT. Solder it in, power up, done. Note: this part has been superseded by SY4051 — grab the replacement if you want the current revision
| brand | Panasonic (JAYCAR) |
| series | JS |
| coil_voltage | 12V |
| contact_capacity | 10A at 100VDC / 277VAC |
| dimensions_mm | 20 x 16 x 16.4 |
| configuration | SPST / SPDT |
| certifications_available | UL, CSA, VDE, TUV |
| construction | Sealed, flux-resistant |
| coil_insulation_classes | E, B, F |
| superseded_by | SY4051 |
| category | Electronics & Components > Electronic Components |