Features

Description

The OPB853A series of slotted optical

switches consist of an infrared emitting

diode and an NPN silicon

photodarlington. They are mounted on

opposite sides of a 0.125" (3.18 mm)

wide slot. The emitter has a 0.050" X

0.050" (1.27 mm X 1.27 mm) molded-in

aperture while the photodarlington has a

0.010" X 0.050" (0.254 mm X 1.27 mm)

molded-in aperture.

Lead Soldering Temperature [1/16 inch (1.6 mm) from case for 5 sec. with soldering

iron] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 240

Input Diode

Forward DC Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 mA

Peak Forward Current (1

µs pulse width, 300 pps) . . . . . . . . . . . . . . . . . . . . . . . 3.0 A

Reverse DC Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.0 V

Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 mW

(2)

Output Photodarlington

Collector-Emitter Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 V

Emitter-Collector Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.0 V

Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 mW

(2)

Notes:

(1) RMA flux is recommended. Duration can be extended to 10 sec. max. when flow soldering.

(2) Derate linearly 1.67 mW/

(3) All parameters tested using pulse technique.

(4) Methanol and isopropanol are recommended as cleaning agents. Housings are soluble in

chlorinated hydrocarbons and ketones. Highly activated, water soluble fluxes may attack

housings in some situations.

Product Bulletin OPB853A

July 1996

Slotted Optical Switches

Types OPB853A1, OPB853A2, OPB853A3

Optek Technology, Inc.

1215 W. Crosby Road

Carrollton, Texas 75006

(972) 323-2200

Fax (972) 323-2396

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