LED anode (Elect.wire: Green)

Phot-tr. collector (Elect.wire: Red)

Phot-tr. emitter (Elect.wire: White)

LED cathode (Elect.wire: Black)

LED anode (Elect.wire: Green)

Phot-tr. collector (Elect.wire: Red)

Phot-tr. emitter (Elect.wire: White)

Phot-tr. emitter (Elect.wire: Brown)

LED cathode (Elect.wire: Black)

(Green)

(Red)

(White)

(Brown)

(Black)

82

Ω

+5 V

Output “A”

Output “B”

0 V

2 k

Ω max.

2 k

Ω max.

+5 V

120

Ω

CP1

3 k

Ω

0.003

μF

4.7 k

Ω

1/2 Vcc

0.1

μF

10 k

Ω

CP2

220 k

Ω

Amp.

+5 V

Output “A”

Output “B”

0 V

Comp.

R

2 k

Ω

(Green)

(Red)

B (Brown)

(Black)

A (White)

82

Ω

1.8 k

Ω

560

Ω

2 k

Ω

−

＋

Circuit identical to output “A”

O LED

O Photo-sensor

Maximum current

45 mA

4 V

75 mW

−1.4 mW/°C

Reverse voltage

Collector current

20 mA

20 V

5 V

75 mW

−1.0 mW/°C

Collector to emitter voltage (forward)

Collector to emitter voltage (reverse)

(at 25 °C)

(at 25 °C)

O SKDVH‡35

O SKDVH‡35

O SKDVHV35

O SKDVHV35

Frequency characteristics: 3 kHz (at constant speed)

RE20F

OPTICAL ENCODERS

O SKDVH35

Fig. A