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| PartNumber | EMS22Q51-D16-LT3 | EMS22Q51-D28-LT1 | EMS22Q51-D28-LT4 |
| Description | Encoders Encoder Rotary Mgntc Quadrature, 5V | Encoders ENCODER - ROTARY MAGNETIC | Encoders Incremental Encoder |
| Manufacturer | Bourns | Bourns | Bourns |
| Product Category | Encoders | Encoders | Encoders |
| RoHS | Y | - | Y |
| Series | EMS22Q | EMS22Q | EMS22Q |
| Mounting Style | Panel Mount | - | Panel Mount |
| Product | Magnetic Encoders | Magnetic Encoders | Magnetic Encoders |
| Type | Incremental | Incremental | Incremental |
| Resolution | 128 PPR | - | 256 PPR |
| Technology | Magnetic | Magnetic | Magnetic |
| Number of Detents | No Detent | - | No Detent |
| Number of Channels | 3 Channel | - | 3 Channel |
| Termination Style | Through Hole | - | Through Hole |
| Output Type | Quadrature with Index | - | Quadrature with Index |
| Shaft Diameter | 1/8 in | - | 1/8 in |
| Shaft Type | Round / Plain | - | Round / Plain |
| With Switch | No Switch | - | No Switch |
| Operating Supply Voltage | 5 VDC | - | 5 VDC |
| Bushing Size | 3/8 in x 3/8 in | - | 3/8 in x 3/8 in |
| Size / Dimension | 21 mm x 16 mm | - | 21 mm x 16 mm |
| Brand | Bourns | Bourns | Bourns |
| Bushing Material | Metal | - | Metal |
| Bushing Thread | 3/8-32 UNEF-2A | - | 3/8-32 UNEF-2A |
| Maximum Operating Temperature | + 125 C | - | + 125 C |
| Minimum Operating Temperature | - 40 C | - | - 40 C |
| Product Type | Encoders | Encoders | Encoders |
| Shaft Length | 1/2 in | - | 7/8 in |
| Factory Pack Quantity | 42 | - | 42 |
| Subcategory | Encoders | Encoders | Encoders |
| Unit Weight | 0.388014 oz | - | 0.388014 oz |