Product Bulletin OPB690 July 1996 Slotted Optical Flag Switch Type OPB690 Features • Phototransistor output • Mechanical switch replacement • 3-pin connector (Ho Tien L2561-03), Molex compatible connector 5102 series housing and 5103 series terminal • Enhanced signal to noise ratio Description The OPB690 consists of an NPN phototransistor and an infrared emitting diode in a molded plastic housing. The phototransistor has an enhanced low current roll-off which improves contrast ratio and immunity to background irradiance. A lever arm actuated flag interrupts the light beam, switching the transistor output between states that can readily drive logic gates. This switch is designed to easily snap mount into a 0.037" ± 0.001" (0.94 mm) thick material with a rectangular opening of 0.320" ± 0.003" x 0.472" (8.13 mm x 11.99 mm) minimum. Insertion into the punched side of metal is recommended. Customized lever arms and spring torques can be designed for specific applications. Optek Technology, Inc. Absolute Maximum Ratings (TA = 25o C unless otherwise noted) Storage and Operating Temperature . . . . . . . . . . . . . . . . . . . . . . . . -40o C to +100o C Input Diode Forward DC Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 mA Peak Forward Current (1 µs pulse width, 300 pps) . . . . . . . . . . . . . . . . . . . . . . . 3.0 A Reverse DC Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.0 V Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 mW(1) Output Phototransistor Collector-Emitter Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 V Emitter Reverse Current. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 mA Collector DC Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 mA Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200 mW(2) Notes: (1) Derate linearly 1.33 mW/o C above 25o C. (2) Derate linearly 2.0 mW/o C above 25o C. (3) “Off”condition exists when the lever arm is in the rest position (20o from vertical) as shown in the figure. (4) “On”condition exists when the lever arm is deflected clockwise 18o +/- 3o form the rest position (20o from vertical) as shown in the figure. (5) From the rest position to the switch point, lever torque measured at the end of the arm is 1.5 grams max. 1215 W. Crosby Road Carrollton, Texas 75006 12-60 (972)323-2200 Fax (972)323-2396 Type OPB690 Electrical Characteristics (TA = 25o C unless otherwise noted) SYMBOL Input Diode PARAMETER MIN MAX UNITS TEST CONDITIONS VF Forward Voltage 1.6 V IF = 10 mA IR Reverse Current 100 µA VR = 3.0 V V IC = 100 µA Output Phototransistor V(BR)CEO Collector-Emitter Breakdown Voltage 30 IECO Emitter Reverse Current 100 µA VEC = 0.4 V ICEO Collector-Emitter Dark Current 100 nA VCE = 5 V VSAT Saturation Voltage 0.4 V IF = 10 mA, IC = 100 µA, Gap unblocked IC(ON) On-State Collector Current µA IF = 10 mA, VCE = 5 V Coupled Forward Current vs Forward Voltage Input Diode IF @ 500 ms pulse width IF - Forward Current - mA Rise and Fall Time vs Load Resistance tr tf 600 Collector Dark Current vs Ambient Temperature VCE = 5 V IF = 10 mA Normalized to TA = 25o C VCE = 5 V IF = 0 mA TA - Ambient Temperature - oC TA - Ambient Temperature - oC Normalized Output Current vs Forward Current Normalized Forward Voltage vs Ambient Temperature VCE = 5 V Normalized to IF = 10 mA IF = 10 mA (50% Duty Cycle) VCC = 5 V RL - Load Resistance - Ω Normalized Output Current vs Ambient Temperature IF - Forward Current - mA VCE = 5 V IF = 10 mA Normalized to TA = 25o C TA - Ambient Temperature - oC Optek reserves the right to make changes at any time in order to improve design and to supply the best product possible. Optek Technology, Inc. 1215 W. Crosby Road Carrollton, Texas 75006 (972)323-2200 Fax (972)323-2396 12-61