138 Multiple Beam Sensor (3 Beams: 50 mm) EY3A-3051
Multiple Beam Sensor (3 Beams: 50 mm)
EY3A-3051
■ Dimensions
Note: All units are in millimeters unless otherwise indicated.
■ Features
• Simultaneously senses three objects positioned differently, thus
saving space.
• Ensures higher sensitivity and external light interference resistivity
than any other photomicrosensor.
• Narrow sensing range ensures stable sensing of a variety of sens-
ing objects.
■ Application Examples
Sensing of paper sizes.
■ Absolute Maximum Ratings (Ta = 25° C)
Note: Make sure there is no icing or condensation when operating the
Sensor.
■ Ordering Information
■ Electrical and Optical Characteristics (Ta = 0° C to 65° C)
Note: 1. These conditions are for the sensing of lusterless paper with an OD of 0.8 maximum located at the correct sensing position of the Sensor
as shown in the optical path arrangement on the next page.
2. These conditions are for the sensing of the paper supporting plate with an OD of 0.05 located using the glass plate without paper as
shown in the optical path arrangement on the next page.
3.2
+0.2
0
dia.
Positioning boss
Center of detector
53325-0510 (Japan Molex)
Pin no.1
Center of emitter
3
0
−0.2
dia.
Unless otherwise specified, the tolerances are as shown below.
Dimensions Tolerance
3 mm max.
±0.3
3 < mm ≤ 6
±0.375
6 < mm ≤ 10
±0.45
10 < mm ≤ 18
±0.55
18 < mm ≤ 30
±0.65
30 < mm ≤ 50
±0.8
50 < mm ≤ 80 ±0.95
Pin no. Remarks Name
1 O1 Output 1 (OUT 1)
2 O2 Output 2 (OUT 2)
3 O3 Output 3 (OUT 3)
4 V Power supply
(Vcc)
5 G Ground (GND)
Japan Molex 51090-0500 (crimp connector)
52484-0510 (press-fit connector)
Recommended Mating Connectors:
Item Symbol Rated value
Power supply voltage V
CC
7 V
Load voltage V
OUT
7 V
Load current I
OUT
10 mA
Ambient
temperature
Operating To p r 0 ° C to 65° C
Storage Tstg –15° C to 70° C
Description Model
Multiple beam sensor EY3A-3051
Item Value Condition
Power supply voltage 5 V ±5% ---
Current consumption 50 mA max. V
CC
= 5 V, R
L
= ∞
Peak current consumption 300 mA max. V
CC
= 5 V, R
L
= ∞
Low-level output voltage 0.6 V max. V
CC
= 5 V, I
OL
= 4 mA (see note 1)
High-level output voltage 3.5 V min. V
CC
= 5 V, R
L
= 4.7 kΩ (see note 2)
Response delay time (high to low) 35 ms max. The time required for the output to become “Lo” after placing sensing
object.
Response delay time (low to high) 20 ms max. The time required for the output to become “Hi” after removing sensing
object.
