fea tures 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 de scrip tion 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. ab so lute maxi mum rat ings (t a = 25 o c un less oth er wise noted) stor age and op er at ing tem pera ture . . . . . . . . . . . . . . . . . . . . . . . . -40 o c to +100 o c in put di ode for ward dc cur rent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 ma peak for ward cur rent (1 m s pulse width, 300 pps) . . . . . . . . . . . . . . . . . . . . . . . 3.0 a re verse dc volt age . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.0 v power dis si pa tion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 mw (1) out put pho to tran sis tor collector- emitter volt age . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 v emit ter re verse cur rent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 ma col lec tor dc cur rent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 ma power dis si pa tion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200 mw (2) notes: (1) der ate line arly 1.33 mw/ o c above 25 o c. (2) der ate line arly 2.0 mw/ o c above 25 o c. (3) ?off? con di tion ex ists when the lever arm is in the rest po si tion (20 o from ver ti cal) as shown in the fig ure. (4) ?on? con di tion ex ists when the lever arm is de flected clock wise 18 o +/- 3 o form the rest po si - tion (20 o from ver ti cal) as shown in the fig ure. (5) from the rest po si tion to the switch point, lever torque meas ured at the end of the arm is 1 .5 grams max. prod uct bul le tin OPB690 july 1996 slotted optical flag switch type OPB690 op tek tech nol ogy, inc. 1215 w. crosby road car roll ton, texas 75006 (972)323- 2200 fax (972)323- 2396 12-60
type OPB690 op tek re serves the right to make changes at any time in or der to im prove de sign and to sup ply the best prod uct pos si ble. op tek tech nol ogy, inc. 1215 w. crosby road car roll ton, texas 75006 (972)323- 2200 fax (972)323- 2396 elec tri cal char ac ter is tics (t a = 25 o c un less oth er wise noted) sym bol pa rame ter min max units test con di tions in put di ode v f forward voltage 1.6 v i f = 10 ma i r reverse current 100 m a v r = 3.0 v out put pho to tran sis tor v (br)ceo collector-emitter breakdown voltage 30 v i c = 100 m a i eco emitter reverse current 100 m a v ec = 0.4 v i ceo collector-emitter dark current 100 na v ce = 5 v cou pled v sat saturation voltage 0.4 v i f = 10 ma, i c = 100 m a, gap unblocked i c(on) on-state collector current 600 m a i f = 10 ma, v ce = 5 v normalized forward voltage vs ambient temperature t a - ambient temperature - o c v ce = 5 v i f = 10 ma normalized to t a = 25 o c i f - forward current - ma forward current vs forward voltage input diode collector dark current vs ambient temperature t a - ambient temperature - o c i f @ 500 ms pulse width v ce = 5 v i f = 0 ma normalized output current vs ambient temperature t a - ambient temperature - o c normalized output current vs forward current i f - forward current - ma v ce = 5 v i f = 10 ma normalized to t a = 25 o c v ce = 5 v normalized to i f = 10 ma rise and fall time vs load resistance r l - load resistance - w i f = 10 ma (50% duty cycle) v cc = 5 v t r t f 12-61
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