OPB690 View Datasheet(PDF) - Optek Technology

Part Name

Description

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OPB690

Slotted Optical Flag Switch

Optek Technology 

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.

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 posi-

tion (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.

Optek Technology, Inc.

1215 W. Crosby Road

Carrollton, Texas 75006

12-60

(972)323-2200

Fax (972)323-2396

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