Single Beam Sensor (1 Beam: 50 mm)
EY3A-1051
■ Dimensions
Note: All units are in millimeters unless otherwise indicated.
■ Features
• Ensures higher sensitivity and external light interference resistivity
than any other photomicrosensor.
• Narrow sensing range ensures stable sensing of a variety of
Positioning boss
Center of detector
sensing objects.
■ Absolute Maximum Ratings (Ta = 25°C)
Item
Power supply voltage
Load voltage
Symbol
VCC
VOUT
IOUT
Rated value
7.9 dia.
7 V
7 V
+0.2
-0 dia.
3.2
Center of emitter
Pin no. 1
Load current
10 mA
Ambient
temperature
Operating
Storage
Topr
Tstg
0°C to 60° C
–15°C to 70° C
Note: Make sure there is no icing or condensation when operating the
Sensor.
8 dia.
+0
-0.2 dia.
3
■ Ordering Information
Description
Single beam sensor
Pin no. Remarks
Name
Model
EY3A-1051
1
2
O
V
Output (OUT)
Power supply
(Vcc)
3
G
Ground (GND)
Unless otherwise specified, the
tolerances are as shown below.
Dimensions
Tolerance
3 mm max.
0.3
3 < mm ≤ 6
0.375
Recommended Mating Connectors:
Japan Molex 51090-0300 (crimp connector)
52484-0310 (press-fit connector)
6 < mm ≤ 10
10 < mm ≤ 18
0.45
0.55
18 < mm ≤ 30
30 < mm ≤ 50
0.65
0.8
■ Electrical and Optical Characteristics (Ta = 0°C to 60°C)
Item
Power supply voltage
Value
Condition
5 V 5%
---
Current consumption
50 mA max.
V
CC = 5 V, RL = ∞
Peak current consumption
Low-level output voltage
High-level output voltage
Response delay time (high to low)
200 mA max.
0.6 V max.
3.5 V min.
VCC = 5 V, RL = ∞
VCC = 5 V, IOL = 4 mA (see note 1)
VCC = 5 V, RL = 4.7 kΩ (see note 2)
1.5 ms max.
The time required for the output to become “Lo” after placing
sensing object.
Response delay time (low to high)
1.5 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 0.9 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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Single Beam Sensor (1 Beam: 50 mm) EY3A-1051
