This handbook specifies the EM20B4004001 rotary encoder, a 20 mm incremental type intended for electronic equipment such as AV gear, home appliances, and office machines. It includes marking information, safety cautions, and application guidance for high‑reliability uses.
The document lists electrical parameters (rated voltage, current consumption, output signal), mechanical data (resolution, torque, dimensions), and environmental limits (operating and storage temperature, humidity, vibration). It also describes soldering conditions, endurance testing, and mounting details for proper integration.
| Current consumption | 15 mA max |
|---|---|
| Output waveform | Square wave (Phase A,B) |
| Resolution | 40 pulses per 360° rotation |
| Rotational torque (max) | 7 mN·m |
It provides 40 pulses for each full 360° rotation.
The maximum allowable torque is 7 mN·m.