Product Bulletin OPB853A
July 1996
Slotted Optical Switches
Types OPB853A1, OPB853A2, OPB853A3
Features
•
Inexpensive opaque plastic housing
•
0.125" (3.18 mm) wide slot
•
0.290" (7.37 mm) lead spacing
•
Apertured for high resolution
•
Photodarlington output
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.
Absolute Maximum Ratings
(T
A
= 25
o
C unless otherwise noted)
Storage and Operating Temperature Range
. . . . . . . . . . . . . . . . . . . . . . . .
-40
o
C to +85
o
C
Lead Soldering Temperature [1/16 inch (1.6 mm) from case for 5 sec. with soldering
iron] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 240
o
C
(1)
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/
o
C above 25
o
C.
(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.
Optek Technology, Inc.
1215 W. Crosby Road
Carrollton, Texas 75006
12-120
(972) 323-2200
Fax (972) 323-2396
OPTEK [ OPTEK TECHNOLOGIES ]
