Haydon Kerk Pittman E21 Micro Incremental Optical Encoder (up to 8,192 CPR / 3.1 g)
Vendor: Haydon Kerk Pittman / AMETEK (USA)
Product: E21 微型增量编码器

Haydon Kerk Pittman (AMETEK, USA) E21 is a micro incremental optical encoder in E21C/E21D versions: 120-8,192 CPR, 2-channel quadrature (index on D), TTL-compatible output, 4.5-5.5 VDC supply, max operating frequency 960 kHz, -20 to +85 °C and only 3.1 g; its tiny form embeds in micro motor rear ends to deliver speed/position feedback for robot joints, gimbals and precision stages.
| output | 2-channel quadrature TTL (index on E21D) |
| supply | 4.5-5.5 VDC |
| weight | 3.1 g |
| resolution | 120-8,192 CPR |
| temperature | -20 to +85 °C |
| max_frequency | up to 960 kHz |