Features

screening program patterned after

MIL-PRF-19500 for TX and TXV

devices

Description

The OPB847TX, OPB847TXV,

OPB848TX, and OPB848TXV each

consist of a gallium aluminum arsenide

LED and a silicon phototransistor

soldered into a printed circuit board then

mounted in a high temperature plastic

housing on opposite sides of a 0.100

inch (2.54 mm) wide slot.

Phototransistor switching takes place

whenever an opaque object passes

through the slot. Both device types have

a 0.025 inch (0.635 mm) by 0.06 (1.52

mm) aperture in front of the

phototransistor for high resolution

positioning sensing.

The OPB847TX, OPB847TXV,

OPB848TX, and OPB848TXV use

optoelectronic components that have

been processed and tested as either TX

or TXV components per MIL-PRF-19500.

Typical screening and lot acceptance

tests are provided on page 13-4.

Operating Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . -65

Storage Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -65

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

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

Input Diode

Forward DC Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 mA

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

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

(2)

Output Phototransistor

Collector-Emitter Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 V

Emitter-Collector Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.0 V

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

(2)

Notes:

(1) Duration can be extended to 10 sec. max. when flow soldering.

(2) Derate linearly 1.00 mW/

(3) Methanol and isopropanol are recommended as cleaning agents.

Product Bulletin OPB847TX/TXV

September 1996

Hi-Rel Slotted Optical Switches

Types OPB847TX, OPB847TXV, OPB848TX, OPB848TXV

Optek Technology, Inc.

1215 W. Crosby Road

Carrollton, Texas 75006

(972) 323-2200

Fax (972) 323-2396

13-40