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.
Positioning boss
Center of detector
• Narrow sensing range ensures stable sensing of a variety of sens-
ing objects.
■ Application Examples
Sensing of paper sizes.
3.2 +0.2
0
dia.
■ Absolute Maximum Ratings (Ta = 25°C)
53325-0510 (Japan Molex) Center of emitter
Pin no.1
Item
Power supply voltage
Load voltage
Symbol
VCC
VOUT
IOUT
Rated value
7 V
7 V
0
3−0.2
dia.
Load current
10 mA
Ambient
temperature
Operating
Storage
Topr
Tstg
0° C to 65° C
–15° C to 70° C
Pin no. Remarks
Name
Note: Make sure there is no icing or condensation when operating the
Sensor.
1
O1
Output 1 (OUT 1)
Output 2 (OUT 2)
Output 3 (OUT 3)
2
3
4
O2
O3
V
■ Ordering Information
Power supply
(Vcc)
Description
Multiple beam sensor
Model
EY3A-3051
5
G
Ground (GND)
Unless otherwise specified, the tolerances are as shown below.
Dimensions
Tolerance
3 mm max.
0.3
3 < mm ≤ 6
0.375
0.45
0.55
6 < mm ≤ 10
10 < mm ≤ 18
Recommended Mating Connectors:
Japan Molex 51090-0500 (crimp connector)
52484-0510 (press-fit connector)
18 < mm ≤ 30
30 < mm ≤ 50
50 < mm ≤ 80
0.65
0.8
0.95
■ Electrical and Optical Characteristics (Ta = 0°C to 65°C)
Item
Value
Condition
Power supply voltage
Current consumption
5 V 5%
---
50 mA max.
300 mA max.
0.6 V max.
3.5 V min.
35 ms max.
V
V
V
CC = 5 V, RL = ∞
CC = 5 V, RL = ∞
CC = 5 V, IOL = 4 mA (see note 1)
Peak current consumption
Low-level output voltage
High-level output voltage
Response delay time (high to low)
VCC = 5 V, RL = 4.7 kΩ (see note 2)
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.
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.
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Multiple Beam Sensor (3 Beams: 50 mm) EY3A-3051
