Microphotonic Devices (Light Convergent Reflective Sensor) EY3A-1051 Be sure to read Precautions on page 24. ■ Dimensions ■ Features Note: All units are in millimeters unless otherwise indicated. Positioning boss 7.9 dia. Center of detector • Ensures higher sensitivity and external light interference resistivity than any other photomicrosensor. • Narrow sensing range ensures stable sensing of a variety of sensing objects. ■ Absolute Maximum Ratings (Ta = 25°C) 8.3 dia . Item 3.2+0.2 -0 dia. Center of emitter Pin no. 1 Rated value VCC 7V Load voltage VOUT 7V Load current IOUT 10 mA Ambient temperature 15 0.5 Symbol Power supply voltage Operating Topr 0°C to 60°C Storage Tstg –15°C to 70°C Note: Make sure there is no icing or condensation when operating the Sensor. 8 dia. 3 +0 -0.2 dia. Pin no. Remarks Name 1 2 O V Output (OUT) Power supply (Vcc) 3 G Ground (GND) Unless otherwise specified, the tolerances are as shown below. Dimensions Tolerance ±0.3 3 mm max. 3 < mm ≤ 6 ±0.375 6 < mm ≤ 10 10 < mm ≤ 18 ±0.45 ±0.55 18 < mm ≤ 30 ±0.65 30 < mm ≤ 50 ±0.8 Recommended Mating Connectors: Japan Molex 51090-0300 (crimp connector) 52484-0310 (press-fit connector) ■ Electrical and Optical Characteristics (Ta = 0°C to 60°C) Item Value Condition Power supply voltage 5 V ±5% --- Current consumption 50 mA max. VCC = 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) 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 page 197. 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 page 197. 196 EY3A-1051 Microphotonic Devices (Light Convergent Reflective Sensor) ■ Characteristics (Paper Table Glass: t = 6 mm max., Transparency Rate: 90% min.) (Ta =0°C to 60°C) Item Characteristic value Sensing density Lusterless paper with an OD of 0.9 max. (sensing distance: 50 mm) (see note) Non-sensing distance 85 mm (from the top of the sensor), OD: 0.05 Paper sensing distance 50 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 PIN (mW): POUT PIN Light power incident upon the document POUT (mW): Reflected light power from the document ■ Optical Path Arrangement 85 (see note 2) 10 dia. (see note 1) 50 (standard value) 8.9 Paper supporting plate Glass Note: 1. The part with oblique lines indicates the paper sensing area of the EY3A-1051, which is practically determined by the diameter of the beam and its tolerance. 2. The non-sensing distance of the EY3A-1051 is determined using a paper with an OD of 0.05. ■ Engineering Data Distance Characteristics (Typical) OD (value) 4.75 V 5.0 V 5.25 V Distance (mm) EY3A-1051 Microphotonic Devices (Light Convergent Reflective Sensor) 197