| PartNumber | 1571563-4 | 1571563-2 | 1571563-6 |
| Description | Tactile Switches FSM4JSMAATR | Tactile Switches TACT SWITCH SMT | Tactile Switches TACT SWITCH SMT |
| Manufacturer | TE Connectivity | TE Connectivity | TE Connectivity |
| Product Category | Tactile Switches | Tactile Switches | Tactile Switches |
| Illuminated | Non-Illuminated | Non-Illuminated | Non-Illuminated |
| Illumination Color | - | - | - |
| Lamp Type | - | - | - |
| Mounting Style | SMD/SMT | SMD/SMT | Through Hole |
| Actuator | Round | Round | Round |
| Switch Function | OFF - (ON) | OFF - (ON) | - |
| Current Rating | 50 mA | 50 mA | 50 mA |
| Voltage Rating DC | 24 VDC | 24 VDC | 24 VDC |
| Voltage Rating AC | - | - | - |
| Contact Form | SPST | SPST | - |
| Termination Style | Solder Pin | Solder Pin | Solder Lug |
| Height | 5 mm | 5 mm | - |
| Series | FSMJSMA | FSMJSMA | - |
| Contact Plating | Silver | Silver | Silver |
| Brand | TE Connectivity | TE Connectivity / Alcoswitch | TE Connectivity |
| Product Type | Tactile Switches | Tactile Switches | Tactile Switches |
| Factory Pack Quantity | 1200 | 1200 | 250 |
| Subcategory | Switches | Switches | Switches |
| Part # Aliases | 1571563-4 | 1571563-2 | 1571563-6 |
| RoHS | - | Y | - |
| Packaging | - | Reel | Reel |
| Unit Weight | - | 0.009665 oz | - |
| Product | - | - | Standard Switches |