Single Beam Sensor (1 Beam: 125 mm) EY3A-112 ■ Dimensions ■ Features Note: All units are in millimeters unless otherwise indicated. • Ensures higher sensitivity and external light interference resistivity than any other photomicrosensor. • Narrow sensing range ensures stable sensing of a variety of sensing objects. Center of detector Positioning boss ■ Absolute Maximum Ratings (Ta = 25° C) Item Two, 10 dia. 53325-0310 (Japan Molex) Center of emitter 3.2 +0.2 0 dia. 7V Load voltage VOUT 7V Load current IOUT 10 mA O Output (OUT) 2 V Power supply (Vcc) 3 G Ground (GND) Topr 0° C to 65° C Storage Tstg –15° C to 70° C ■ Ordering Information Name 1 Operating Note: Make sure there is no icing or condensation when operating the Sensor. 0 3 −0.2 dia. C1 Pin no. Remarks Rated value VCC Ambient temperature Pin no.1 Symbol Power supply voltage Description Model Single beam sensor EY3A-112 Unless otherwise specified, the tolerances are as shown below. Dimensions Tolerance 3 mm max. ±0.3 3 < mm ≤ 6 6 < mm ≤ 10 ±0.375 ±0.45 10 < mm ≤ 18 ±0.55 18 < mm ≤ 30 ±0.65 30 < mm ≤ 50 ±0.8 50 < mm ≤ 80 ±0.95 Recommended Mating Connectors: Japan Molex 51090-0300 (crimp connector) 52484-0310 (press-fit connector) ■ Electrical and Optical Characteristics (Ta = 0° C to 65° C) Item Value Condition Power supply voltage 5 V ±5% --- Current consumption 50 mA max. V CC = 5 V, RL = ∞ Peak current consumption 200 mA max. VCC = 5 V, RL = ∞ Low-level output voltage 0.6 V max. VCC = 5 V, IOL = 4 mA (see note 1) High-level output voltage 3.5 V min. VCC = 5 V, RL = 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. Note: 1. These conditions are for the sensing of lusterless paper with an OD of 0.6 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. 136 Single Beam Sensor (1 Beam: 125 mm) EY3A-112 ■ Characteristics (Paper Table Glass: t = 6 mm max., Transparency Rate: 90% min.) (Ta =0° C to 65° C) Item Characteristic value Sensing density Lusterless paper with an OD of 0.6 max. (sensing distance: 125 mm) (see note) Non-sensing distance 185 mm (from the top of the sensor), OD: 0.05 Paper sensing distance 125 mm (from the top of the sensor) Ambient illumination Sunlight: 3,000 lx max., fluorescent light: 2,000 lx max. Note: 1. The data shown are initial data. 2. Optical darkness (OD) is defined by the following formula: OD = − log10 POUT PIN PIN (mW): Light power incident upon the document POUT (mW): Reflected light power from the document ■ Optical Path Arrangement (beam center) 185 min. 13 dia. 4 dia. 125 (standard value) (beam diameter) 8.5 (beam center) Paper supporting plate Glass ■ Engineering Data Distance Characteristics (Estimated Lower-limit Value) OD (value) 4.75 V 5.0 V 5.25 V Distance (mm) Single Beam Sensor (1 Beam: 125 mm) EY3A-112 137