Fea tures
High radiant output for fiber optic
applications
High speed
Electrically isolated from case
De scrip tion
The OPF345 series LED provides fiber
optic users with high coupled power and
wide bandwidth in an easily mounted
package.
The LED's are designed to interface with
multimode optical fibers from 50/125 to
200/300 microns.
Ab so lute Maxi mum Rat ings (T
A
= 25
o
C un less oth er wise noted)
Re verse Volt age. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.0 V
Con tinu ous For ward Cur rent. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 mA
(4)
Stor age Tem pera ture Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55
o
C to +150
o
C
Op er at ing Tem pera ture Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40
o
C to +125
o
C
Lead Sol der ing Tem pera ture [1/16 inch (1.6 mm) from case for 5 sec. with sol der ing
iron] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 240
o
C
(1)
Notes:
(1) RMA flux is recommended. Duration can be extended to 10 sec. max when flow soldering.
(2) Graded index fiber, 50
m core, N.A. = 0.20.
(3) To convert radiant power output to dBm, use the following expression dBm = 10 log
(
W/1000).
(4) Derate linearly @ 1.0 mA/
o
C above 25
o
C.
(5) Prebias @ 5 mA current.
LED Burn-in
All LED's are subject to 100% burn-in testing. Test conditions are 96 hours at 100 mA
continuous current in 25
o
C ambient.
Prod uct Bul le tin OPF345
August 1996
Fi ber Op tic GaA lAs High Speed LED
Types OPF345A, OPF345B, OPF345C, OPF345D
TYPI CAL COU PLED POWER into OP TI CAL FI BER
Typi cal Cou pled Power
I
F
= 100 mA @ 25
o
C
Fi ber
Re frac tive
In dex
N.A.
OPF345D
OPF345C
OPF345B
OPF345A
50/125
m
Graded
0.20
7.5
W
12.5
W
18
W
25
W
62.5/125
m
Graded
0.28
14
W
22
W
34
W
45
W
100/140
m
Graded
0.29
38
W
62
W
95
W
125
W
200/300
m*
Step
0.41
140
W
235
W
340
W
475
W
*PCS - Plas tic Clad Sil ica
Op tek Tech nol ogy, Inc. 1215 W. Crosby Road Car roll ton, Texas 75006 (972) 323- 2200 Fax (972) 323- 239
8-44
Types OPF345A, OPF345B, OPF345C, OPF345D
Optek reserves the right to make changes at any time in order to improve design and to supply the best product possible.
Op tek Tech nol ogy, Inc. 1215 W. Crosby Road Car roll ton, Texas 75006 (214)323- 2200 Fax (214)323- 2396
Elec tri cal Char ac ter is tics (T
A
= 25
o
C un less oth er wise noted)
SYM BOL
PA RAME TER
MIN
TYP MAX UNITS
TEST CON DI TIONS
P
O
Radiant Power Output
OPF345D
OPF345C
OPF345B
OPF345A
5.0
10.0
15.0
20.0
7.5
12.5
18.0
25.0
W
I
F
= 100mA
(2)
V
F
Forward Voltage
1.8
2.0
V
I
F
= 100mA
p
Peak Output Wavelength
830
850
870
nm
I
F
= 50mA
B
Spectral Bandwidth Between Half Power Points
35
nm
I
F
= 50mA
t
r
Output Rise Time
3.5
4.5
ns
I
F
= 100mA, 10%-90%
(5)
t
f
Output Fall Time
3.5
4.5
ns
I
F
= 100mA, 90%-10%
(5)
Typi cal Per form ance Curves
Temperatures are
stepped in 25
o
C
increments.
-50
o
C
100
o
C
Relative Coupled Power vs.
Forward Current
Forward Current - mA
-50
o
C
100
o
C
Temperatures are
stepped in 25
o
C
increments.
8-45
Forward Voltage vs.
Forward Current
Forward Current - mA
PDF 
ZIP