Japan, Tosoku
Tosoku RE25 Series Optical Rotary Encoder

Product Made in Japan
 Manufacturer: Tosoku
 Model: RE25 Series
RE25 is a VA designed eco-friendly – power-saving and low-cost with lesser parts – rotary encoder. Its size, mounting procedures, and inner structures have been designed for a wide array of uses; measurement devices, medical equipment, industrial machinery, telecommunication devices, and machine tools.
Features
● Eco-friendly:
 1) Power-saving
 2) Low cost and lesser parts by VA design
 3) RoHS compliant
 ● Thin-line (18.8×25.5×8.9mm) and lightweight (18g)
 ● Various types of models with options: lead wire with or without connector, clamp for horizontal/vertical mounting
 ● Long-lasting without “contact chatter” due to its optical switching function
 ● Waterproofed model available
Specifications
| 1. Electrical and Mechanical specifications | ||||
|---|---|---|---|---|
| Items | Rated Value | |||
| Number of pulses | 16PPR, 25PPR | |||
| Supply voltage | 3.3V±10% | 5V±10% | ||
| 20mA | 10mA | |||
| Output signals | Channel A/B: Square Wave CMOS chip | |||
| Output voltage | High | Supply Voltage(3.3V): - 0.3V ≦ , (5V): - 0.5V ≦ | ||
| Low | ≦ 0.4V | |||
| Response frequency | 200Hz | |||
| Rotational Torque | Light: S | 4±1mN・m | ||
| Standard: C | 6±2mN・m | |||
| Medium: M | 10.5±3.5mN・m | |||
| High: H | 16±5mN・m | |||
| Weight | 18g | |||
| 2. Reliability and Environmental specifications | ||||
| Items | Rated Value | |||
| Durability of operating area | Thrust direction | Push | 100N | |
| Pull | 50N | |||
| Radial | 1N・m | |||
| Rotational durability | Light: S | 1 million strokes (No load) | ||
| Standard: C | ||||
| Medium: M | ||||
| High: H | 100 thousand strokes (No load) | |||
| Screw Torque | Not more than 1N・m | |||
| Heat resistance of solder | Solder bit temp.: MAX 350℃ | Within 3 seconds for each terminal | ||
| Operating temperature | 0℃  ~ +55℃ 32F ~ 131F | |||
| Storage temperature | - 40℃ ~ +85℃ - 40F ~ 185F | |||
Output Waveform
1) Turning the shaft clockwise will generate the signal A when the signal B outputs a low voltage (0);
 2) Rotating the shaft counter-clockwise will generate the signal A when the signal B outputs a high voltage(1);
 3) Detent positions are where both signals A and B are low (0).

Part Number Designation

Dimensions (mm)

Circuitry


Warranty
● 1 year from the date of shipment.
Precautions
| Wiring | Use buffering amplifier when extending lead wire over 30cm. | 
| Soldering | Do not put a load on the terminal area during and immediately after soldering. | 
| Operation | Do not use flow/reflow soldering machines. | 
| Power | Use under specified power voltage and connect properly. | 
| Waterproofing | Do not fasten tighter with the torque of more than 1.5N・m. | 
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