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PRODUCT INFORMATION

Europe:  Tel (46) 8 58 02 45 00

Fax (46) 8 58 02 01 10

Tel (44) 1291 436180

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Asia:

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Fax (65) 293 8527

12270.11  1997-07-08

1A284

High-Performance LED

Baseband Video

 

0.6

14

Ø1.5

Ø4.7

3.7

0.4

 

5.4

2.5

CASE

ANODE

CATHODE

BOTTOM VIEW

The anode is in electrical contact with the case.

TO-46 Package With Lens

All dimensions in mm

The low thermal droop of this device

allows baseband video transmission

with minimum distortion. The dou-

ble-lens optical system provides for

optimum coupling of power into the

fiber.

1320

nm

Thermal Characteristics

Absolute Maximum Ratings 

Fiber:

62.5/125

␮m

Graded

Index

NA=0.275

Optical and Electrical Characteristics  

(25° C Case Temperature)

Note 1: Measured at the exit of 100 meters of fiber.

Note 2: Transient decline in optical power due to self-heating.

PARAMETER

SYMBOL

LIMIT

Storage Temperature

Tstg

-55 to +125

ЊC

Operating Temperature 

(derating: Fig.4)

Top

-55 to +125

ЊC

Electrical Power Dissipation

(derating: Fig.4)

Ptot

230 mW

Continuous Forward Current 

(f

р10 kHz)

I

F

110 mA

Peak Forward Current

(duty cycle

р50%, fу1 MHz)

I

FRM

170 mA

Reverse Voltage

V

R

1.5 V

Soldering Temperature

(2mm from the case for 10 sec)

Tsld

260

ЊC

PARAMETER

SYMBOL

MIN.

TYP.

MAX.

UNIT

Thermal Resistance - Infinite Heat Sink

Rthjc

100 

ЊC/W

Thermal Resistance - No Heat Sink

Rthja

400

ЊC/W

Temperature Coefficient - Optical Power

dP/dTj

-0.8

%/

ЊC

Temperature Coefficient -Wavelength

d

/dTj

0.55

nm/

ЊC

PARAMETER

SYMBOL

MIN.

TYP.

MAX.

UNIT

TEST CONDITION

Fiber-Coupled Power

Pfiber

35

50

␮W

I

F

=100mA

(Fig.1, 2,& 3) (Table 1)

(Note 1)

Rise and Fall Time

tr,tf

6

9

ns

I

F

=100mA

(10-90%)

(no bias)

Bandwidth

fc

55

MHz

I

F

=100mA

(3dBel)

Thermal Droop 

l

⌬P

l

2

%

I

F

=100mA

(nonlinearity)

(Note 2)

Peak Wavelength

␭p

1280 1320 1350

nm

I

F

=100mA

Spectral Width

(FWHM)

120

155

nm

I

F

=100mA

Forward Voltage 

(Fig.5)

V

F

1.5

2

V

I

F

=100mA

Reverse Current

I

R

100

␮A

V

R

=1V

Capacitance 

C

200

pF

V

R

= 0V, f=1 MHz

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1A284

High-Performance LED

FIGURE 2

0

20

40

60

80

100

%

0

20

40

60

80

100 

µm

r - RADIAL DISPLACEMENT OF FIBER

RELA

TIVE FIBER-COUPLED PO

WER 

r

z = opt.

Øc = 62.5ʵm

z

FIGURE 1

0

20

40

60

80

100

%

0.5

1.0

1.5

2.0

2.5               3.0 mm

z - AXIAL DISPLACEMENT OF FIBER 

RELA

TIVE FIBER-COUPLED PO

WER

r

r = opt.

Øc = 62.5ʵm

z

FIGURE 5

FORWARD VOLTAGE

FORWARD CURRENT

mA

200

100

0

0

1

2

3

V

FIGURE 3

0

20

40

60

80

100

%

0

40

80

120

160

200 

mA

FORWARD CURRENT

RELA

TIVE FIBER-COUPLED PO

WER

50% DUTY CYCLE

DC

HEAT SINKED

FIGURE 4

mW

300

200

100

0

0

50

100

150¡C

NO HEAT SINK

 OPERATING TEMPERATURE 

   MAX. ELECTRICAL POWER DISSIPATION

INFINITE

HEAT SINK

1320

nm

Core Diameter/Cladding Diameter

Numerical Aperture

50/125

␮m

62.5/125

␮m

100/140

␮m

0.20

0.275

0.29

Table 1

Typical Fiber-Coupled Power

12

␮W

50

␮W

90

␮W

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M Mitel (design) and ST-BUS are registered trademarks of MITEL Corporation

Mitel Semiconductor is an ISO 9001 Registered Company

Copyright 1999 MITEL Corporation

All Rights Reserved

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