Bourns ENA1D-B20-L00128L Built In Switch: No Detents: No Encoder Signal: Digital Square Wave Index Output: Not Indexed Lead Free Status / Rohs Status: Compliant Mechanical Life: 10000000 Motion: Rotary Mounting Style: Bracket Number Of Channels: 2 Operating Supply Voltage (typ): 5VDC Operating Temperature Max Deg. C: 75C Operating Temperature Min Deg. C: -40C Operating Temperature Range: - 40 C to + 75 C Output: 2 bit Gray Code Product: Optical Pulses Per Revolution: 512 Shaft Diameter (mm): 6.35mm Shaft Style: Round Shaft Type: Plain End, 1/4 in Diameter Terminal Type: PC Pins Termination Style: Axial, Multi-Purpose Pin Type: Optical Encoder With Switch: Without Product Category: Encoders RoHS: yes Resolution: 128 PPR Series: EN