
Fea ures
Wide receiving angle
Linear response vs. irradiance
Fast switching time
Side-looking package ideal for space
limited applications
De scrip ion
The OP955 devices consists of a PIN
silicon photodiode molded in a clear
epoxy package which allows spectral
response from visible to infrared
wavelengths. The wide receiving angle
provides relatively even reception over a
large area. The side-looking package is
designed for easy PC board mounting.
The lensing effect of the package allows
an acceptance half angle of 45
o
measured from the optical axis to the half
power point. These devices are 100%
production tested using infrared light for
close correlation with Optek’s GaAs and
GaAlAs emitters.
Ab so ute Maxi mum Rat ngs
(T
A
= 25
o
C un ess oth er wise noted)
Re verse Break down Volt age. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 V
Stor age and Op er at ng Tem pera ure Range . . . . . . . . . . . . . . . . . . -40
o
C to +100
o
C
Lead Sol der ng Tem pera ure [1/16 inch (1.6 mm) from case for 5 sec. with sol der ng
iron] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260
o
C
(1)
Power Dis si pa ion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 mW
(2)
Notes:
(1) RMA flux is recommended. Duration can be extended to 10 sec. max. when flow soldering.
Max. 20 grams force may be applied to leads when soldering.
(2) Derate linearly 1.67 mW/
C above 25
C.
(3) Light source is an unfiltered GaAs LED with a peak emission wavelength of 935nm and a
radiometric intensity level which varies less than 10% over the entire lens surface of the
photodiode being tested.
(4) To calculate typical dark current in
μ
A, use the formula I
D
= 10
(0.042 TA-1.5)
where T
A
is
ambient temperature in
C.
Typi cal Per orm ance Curves
Prod uct Bul e in OP955
June 1996
PIN Sili con Pho o di ode
Type OP955
Op ek Tech nol ogy, Inc. 1215 W. Crosby Road Car oll on, Texas 75006 (972) 323- 2200 Fax (972) 323- 2396
Relative Response vs.
Wavelength
λ
- Wave ength - nm
Coupling Characteristics
OP955 and OP245
Dis ance Be ween Lens Tips - inches
V
R
= 5 V
I
F
= 20 mA
3-62