OPTEK OPF345A, OPF345D, OPF345C, OPF345B Datasheet

Prod uct Bul le tin OPF345
August 1996

Fi ber Op tic GaA lAs High Speed LED

Types OPF345A, OPF345B, OPF345C, OPF345D

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 (TA = 25o C un less oth er wise noted)

Re verse Volt age. . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.0 V

Con tinu ous For ward Cur rent. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 mA

Stor age Tem pera ture Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55o C to +150o C

Op er at ing Tem pera ture Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40o C to +125o C

Lead Sol der ing Tem pera ture [1/16 inch (1.6 mm) from case for 5 sec. with sol der ing

iron] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 240o C

Notes:

(1) RMA flux is recommended. Duration can be extended to 10 sec. max when flow soldering.
(2) Graded index fiber, 50 µm core, N.A. = 0.20.

(3) To convert radiant power output to dBm, use the following expression dBm = 10 log

(µW/1000).
(4) Derate linearly @ 1.0 mA/o C above 25o 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 25o C ambient.

TYPI CAL COU PLED POWER into OP TI CAL FI BER

Typi cal Cou pled Power

IF = 100 mA @ 25o C

Fi ber Re frac tive

50/125 µm

62.5/125 µm
100/140 µm

200/300 µm*

*PCS - Plas tic Clad Sil ica

In dex

Graded 0.20
Graded 0.28
Graded 0.29

Step 0.41

N.A. OPF345D OPF345C OPF345B OPF345A

7.5 µW 12.5 µW 18 µW 25 µW
14 µW 22 µW 34 µW 45 µW
38 µW 62 µW 95 µW 125 µW

140 µW 235 µW 340 µW 475 µW

(4)

(1)

Op tek Tech nol ogy, Inc. 1215 W. Crosby Road Car roll ton, Texas 75006 (972) 323- 2200 Fax [phone]

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Types OPF345A, OPF345B, OPF345C, OPF345D

Elec tri cal Char ac ter is tics (TA = 25o C un less oth er wise noted)

SYM BOL PA RAME TER MIN TYP MAX UNITS TEST CON DI TIONS

Radiant Power Output OPF345D

P

O

OPF345C
OPF345B
OPF345A

V

λp

Forward Voltage 1.8 2.0 V IF = 100mA

F

Peak Output Wavelength

B Spectral Bandwidth Between Half Power Points 35 nm IF = 50mA
t

Output Rise Time 3.5 4.5 ns IF = 100mA, 10%-90%

r

t

Output Fall Time 3.5 4.5 ns IF = 100mA, 90%-10%

f

Typi cal Per form ance Curves

5.0

10.0

15.0

20.0

7.5

12.5

18.0

25.0

µW

830 850 870 nm

IF = 100mA

IF = 50mA

(2)

(5)
(5)

Relative Coupled Power vs.

Forward Current

Temperatures are
stepped in 25o C
increments.

Forward Current - mA

-50o C

100o C

-50o C

Forward Voltage vs.

Forward Current

100o C

Temperatures are
stepped in 25o C
increments.

Forward Current - mA

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 [phone]

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