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| PartNumber | MDSR-4-12-18 | MDSR-4-12-23 | MDSR-4-12-28 |
| Description | Magnetic / Reed Switches MDSR-4 12-18 | Magnetic / Reed Switches MDSR-4-12-23 | Magnetic Sensors Industrial Hall Effect / Magnetic Sensors |
| Manufacturer | Littelfuse | Littelfuse Inc. | Littelfuse Inc. |
| Product Category | Magnetic / Reed Switches | Magnetic, Reed Switches | Magnetic, Reed Switches |
| RoHS | Y | - | - |
| Switch Type | Sub-Miniature | Reed | - |
| Contact Form | SPST | SPST | - |
| Operate Range | 12 AT to 18 AT | 12 ~ 23AT | 12 ~ 28AT |
| Voltage Rating AC | 200 VDC | - | - |
| Color | Clear | - | - |
| Termination Style | Axial | Axial | Axial |
| Packaging | Bulk | Bulk | Bulk |
| Contact Position | Normally Open | - | - |
| Illumination Color | - | - | - |
| Mounting | Through Hole | Through Hole | - |
| Series | MDSR-4 | MDSR-4 | MDSR-4 |
| Brand | Hamlin / Littelfuse | - | - |
| Illuminated | Non-Illuminated | - | - |
| Lamp Type | - | - | - |
| Product Type | Reed Switches | - | - |
| Factory Pack Quantity | 1000 | - | - |
| Subcategory | Switches | - | - |
| Type | - | Glass Body | Glass Body |
| Capacitance | - | 0.20pF | 0.20pF |
| Operating Temperature | - | -40°C ~ 125°C | -40°C ~ 125°C |
| Mounting Type | - | Through Hole | Through Hole |
| Height Above Board | - | - | - |
| Circuit | - | SPST-NO | SPST-NO |
| Length Overall | - | 1.590" (40.39mm) | 1.590" (40.39mm) |
| Release Range | - | - | - |
| Current Switching | - | 500mA (DC) | 500mA (DC) |
| Voltage Switching AC | - | - | - |
| Voltage Switching DC | - | 200V | 200V |
| Power Rated | - | 10W | 10W |
| Operate Time | - | 0.6ms | 0.6ms |
| Release Time | - | 0.2ms | 0.2ms |
| Size Body | - | 0.090" Dia x 0.600" L (2.28mm x 15.24mm) | 0.090" Dia x 0.600" L (2.28mm x 15.24mm) |
| Current Carry | - | 1.2A (DC) | 1.2A (DC) |
| Contact Rating | - | 500 mA | - |