Prod uct Bul le tin OP770A
Feb ru ary 2000
NPN Phototransistor with Collector-Emitter Capacitor
Types OP770A, OP770B, OP770C, OP770D
Features
•
•
•
•
Supresses high frequency noise
Variety of sensitivity ranges
Wide receiving angle
Side looking package for space limited
applications
Ab so lute Maxi mum Rat ings
(T
A
= 25
o
C un less oth er wise noted)
Collector- Emitter Volt age. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 V
Emitter- Collector Volt age . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.0 V
Stor age and Op er at ing Tem pera ture Range . . . . . . . . . . . . . . . . . . -40° C to +100° C
Lead Soldering Tem pera ture [1/16 inch (1.6 mm) from case for 5 sec . with sol der ing
iron] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260° C
(1)
Power Dis si pa tion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 mW
(2)
Notes:
(1) RMA flux is rec om mended. Du ra tion can be ex tended to 10 sec . max. when flow sol der ing.
Max. 20 grams force may be applied to leads when soldering.
(2) Derate linearly 1.33 mW/° C above 25° C.
(3) Light source is an unfiltered GaAs LED with a peak emission wavelength of 935 nm and a
radiometric intensity level which varies less than 10% over the entire lense surface of the
phototransistor being tested.
(4) To calculate typical collector dark current in
µA,
use the formula I
CED
= 10
(0.040T A-3.4)
when
T
A
is ambient temperature in
°C.
Description
The OP770 consists of an NPN
phototransistor and 1000 pF capacitor
molded in a clear epoxy package. The
internal collector-emitter capacitor allows
the device to be used in applications
where external high frequency emissions
could compromise signal integrity.
The device’s wide receiving angle
provides relatively even reception over a
large area.
The OP770 is 100% production tested
using an infrared light source for close
correlation with Optek’s GaAs and
GaAIAs emitters.
Side-looking package is designed for
easy PC board mounting of slotted
optical switches or optical interrupt
detectors.
Typi cal Per form ance Curves
Typical Spectral Response
Schematic
Wavelength - nm
Op tek Tech nol ogy, Inc.
1215 W. Crosby Road
Car roll ton, Texas 75006
(972) 323- 2200
Fax (972) 323- 2396
OPTEK [ OPTEK TECHNOLOGIES ]
