| PartNumber | MDSM-4B-17-28 | MDSM-4B-17-38 | MDSM-4B-17-23 |
| Description | Magnetic / Reed Switches | Magnetic / Reed Switches | Magnetic Sensors Industrial Hall Effect / Magnetic Sensors |
| Manufacturer | Littelfuse | Littelfuse | Littelfuse Inc. |
| Product Category | Magnetic / Reed Switches | Magnetic / Reed Switches | Magnetic, Reed Switches |
| RoHS | Y | Y | - |
| Switch Type | Sub-Miniature | - | - |
| Contact Form | SPST | - | - |
| Operate Range | 17 AT to 28 AT | - | 17 ~ 23AT |
| Voltage Rating AC | 140 VAC | - | - |
| Color | Clear | - | - |
| Termination Style | Axial | Axial | Gull Wing |
| Packaging | Case | Case | Bulk |
| Contact Position | Normally Open | - | - |
| Illumination Color | - | - | - |
| Mounting | SMD/SMT | - | - |
| Series | MDSM-4 | MDSM-4 | MDSM-4 |
| Brand | Hamlin / Littelfuse | Hamlin / Littelfuse | - |
| Illuminated | Non-Illuminated | Non-Illuminated | - |
| Lamp Type | - | - | - |
| Product Type | Reed Switches | Reed Switches | - |
| Factory Pack Quantity | 100 | 100 | - |
| Subcategory | Switches | Switches | - |
| Type | - | - | Glass Body |
| Capacitance | - | - | 0.20pF |
| Operating Temperature | - | - | -40°C ~ 125°C |
| Mounting Type | - | - | Surface Mount |
| Height Above Board | - | - | 0.112" (2.85mm) |
| Circuit | - | - | SPST-NO |
| Length Overall | - | - | 0.760" (19.30mm) |
| Release Range | - | - | - |
| Current Switching | - | - | 350mA (AC), 500mA (DC) |
| Voltage Switching AC | - | - | 140V |
| Voltage Switching DC | - | - | 200V |
| Power Rated | - | - | 10W |
| Operate Time | - | - | 0.6ms |
| Release Time | - | - | 0.2ms |
| Size Body | - | - | 0.090" Dia x 0.600" L (2.28mm x 15.24mm) |
| Current Carry | - | - | 1.2A (DC) |