| PartNumber | ENS1J-B28-L00100L | ENS1J-B28-L00128L | ENS1J-B28-L00064L |
| Description | Encoders 100CPR AXIAL | Encoders 1/4" Plain End Axial | Encoders 64CPR AXIAL |
| Manufacturer | Bourns | Bourns | Bourns |
| Product Category | Encoders | Encoders | Encoders |
| RoHS | Y | Y | Y |
| Series | EN | EN | EN |
| Mounting Style | Panel Mount | Panel Mount | Panel Mount |
| Product | Optical Encoders | Optical Encoders | Optical Encoders |
| Type | Incremental | Incremental | Incremental |
| Resolution | 100 PPR | 128 PPR | 64 PPR |
| Technology | Rotary | Rotary | Rotary |
| Number of Detents | No Detent | No Detent | No Detent |
| Number of Channels | 2 Channel | 2 Channel | 2 Channel |
| Termination Style | PC Pin | PC Pin | PC Pin |
| Output Type | Quadrature | Quadrature | Quadrature |
| Shaft Diameter | 1/4 in | 1/4 in | 1/4 in |
| Shaft Type | Round / Plain | Round / Plain | Round / Plain |
| With Switch | No Switch | No Switch | No Switch |
| Operating Supply Voltage | 5 VDC | 5 VDC | 5 VDC |
| Packaging | Bulk | Bulk | Tray |
| Bushing Size | 3/8 in x 3/8 in | 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 | 21 mm x 16 mm |
| Brand | Bourns | Bourns | Bourns |
| Bushing Material | Metal | Metal | Metal |
| Bushing Thread | 3/8-32 UNEF | 3/8-32 UNEF | 3/8-32 UNEF |
| Maximum Operating Temperature | + 75 C | + 75 C | + 75 C |
| Minimum Operating Temperature | - 40 C | - 40 C | - 40 C |
| Product Type | Encoders | Encoders | Encoders |
| Shaft Length | 7/8 in | 7/8 in | 7/8 in |
| Factory Pack Quantity | 42 | 42 | 42 |
| Subcategory | Encoders | Encoders | Encoders |
| Tradename | Pro Audio | Pro Audio | Pro Audio |
| Unit Weight | 0.388014 oz | 0.455034 oz | 0.455034 oz |