Fea tures
Electrically isolated plastic cap
package
High radiant output for fiber optic
applications
High speed
Designed to self align in the 0.228
inch diameter bore of standard fiber
optic receptacles. Press fit simplifies
component installation.
De scrip tion
The OPF370 series LED provides fiber
optic users with high coupled power and
wide bandwidth in a low cost 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 +115
o
C
Op er at ing Tem pera ture Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40
o
C to +100
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 OPF370
Janu ary 1998
Fi ber Op tic GaA lAs LED
Types OPF370A, OPF370B, OPF370C, OPF370D
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.
OPF370D
OPF370C
OPF370B
OPF370A
50/125
m
Graded
0.20
7.5
W
12.5
W
19
W
29
W
62.5/125
m
Graded
0.28
27
W
35
W
51
W
89
W
100/140
m
Graded
0.29
60
W
87
W
129
W
200
W
200/300
m*
Step
0.41
320
W
463
W
606
W
750
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- 2396
8-50
Types OPF370A, OPF370B, OPF370C, OPF370D
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 (972) 323- 2200 Fax (972) 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
DOT
MIN TYP MAX UNITS
TEST CON DI TIONS
P
O
Radiant Power Output
OPF370D
OPF370C
OPF370B
OPF370A
(No Dot)
(Blue)
(Yellow)
(Red)
5.0
10.0
15.0
25.0
7.5
12.5
19.0
29.0
W
I
F
= 100 mA
(2)
V
F
Forward Voltage
1.8
2.0
V
I
F
= 100 mA
p
Peak Output Wavelength
830
850
870
nm
I
F
= 50 mA
B
Spectral Bandwidth Between Half Power Points
35
nm
I
F
= 50 mA
t
r
Output Rise Time
6.0
8.0
ns
I
F
= 100 mA, 10%-90%
(5)
t
f
Output Fall Time
6.0
10.0
ns
I
F
= 100 mA, 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.
8-51
Forward Voltage vs.
Forward Current
Forward Current - mA
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