OPTEK OPF342B, OPF342C, OPF342D, OPF342A Datasheet

Prod uct Bul le tin OPF342
August 1996

Fi ber Op tic GaA lAs High Speed LED

Types OPF342A, OPF342B, OPF342C, OPF342D

Fea tures

• Component pre-mounted and ready

to use

• Pre-tested with fiber to assure

performance

• Popular ST* style receptacle

• High Speed

• Electrically isolated from case

De scrip tion

The OPF342 series LED consists of a
hermetic LED, pre-mounted and aligned
in an ST* receptacle. This configuration
is designed for PC board or panel
mounting. Includes lock washer and
jam nut, two 2-56 screws, and a
dust cap.

The LED’s are designed to interface with
multimode optical fibers from 50/125 to
200/300 microns.

*ST is a registered trademark of AT&T.

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

(4)

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

(1)

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.

in ST* Receptacle

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

In dex

N.A. OPF342D OPF342C OPF342B OPF342A

50/125 µm

Graded 0.20

7.5 µW 12.5 µW 18 µW 25 µW

62.5/125 µm

Graded 0.28

14 µW 22 µW 34 µW 45 µW

100/140 µm

Graded 0.29

38 µW 62 µW 95 µW 125 µW

200/300 µm*

Step 0.41

140 µW 235 µW 340 µW 475 µW

*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 [phone]

8-42

Types OPF342A, OPF342B, OPF342C, OPF342D

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]

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

P

O

Radiant Power Output OPF342D

OPF342C
OPF342B
OPF342A

5.0

10.0

15.0

20.0

7.5

12.5

18.0

25.0

µW

IF = 100 mA

(2)

V

F

Forward Voltage 1.8 2.0 V IF = 100 mA

λp

Peak Output Wavelength

830 850 870 nm

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

r

Output Rise Time 4.5 6.0 ns IF = 100 mA, 10%-90%

(5)

t

f

Output Fall Time 4.5 6.0 ns IF = 100 mA, 90%-10%

(5)

Typi cal Per form ance Curves

Temperatures are
stepped in 25o C
increments.

-50o C

100o C

8-43

Relative Coupled Power vs.

Forward Current

Forward Current - mA

-50o C

100o C

Temperatures are
stepped in 25o C
increments.

Forward Voltage vs.

Forward Current

Forward Current - mA