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MF388
High Performance LED
DS5468
ISSUE 1
May 2001
Ordering Information
MF388 MF388 ST 12940.11 TO-46 Package 13208.11 ST Housing
Note: Rated Fiber coupled power apply only on the TO-46 package, for housing options fiber coupled power is typically 10% less
Description
This device is designed for Ethernet 100 Mbps and Intra-Office Telecom applications and offers an excellent price/performance ratio for cost effective solutions. Its double-lens optical system results in optimum coupling of power into the fiber. TO-46 Package with Lens
Optical and Electrical Characteristics - Case Temperature 25C
Parameter Fiber-Coupled Power (Fig. 1,2 & 3) (Table 1) Rise and Fall Time (10-90%) Bandwidth (3dBel) Peak Wavelength Spectral Width (FWHM) Forward Voltage (Fig. 5) Reverse Current Capacitance Symbol Pfiber tr'tf fc p VF IR C 20 200 250 Min. 40 Typ. 50 2 Max. Unit W ns MHz Test Condition IF=50mA (Note 1) IF=50mA (no bias) IF=50mA IF=50mA IF=50mA IF=50mA VR=1V VR=0V, f=1MHz Fiber: 62.5/ 125m Graded Index NA=0.275
800
820
840 60 1.85 20
nm nm V A pF
Note 1: Measured at the exit of 100 meters of fiber
O4.7 O1.5 0.6
CASE
3.7
14
2.5 5.4 BOTTOM VIEW
0.4
The diode chip is isolated from the case
All dimensions in mm
1
ANODE
CATHODE
MF388
Absolute Maximum Ratings
Parameter Storage Temperature Operating Temperature see (derating: Fig. 4) Electrical Power Dissipation (derating: Fig. 4) Continuous Forward Current (f<10kHz) Peak Forward Current (duty cycle<50%, f>1MHz) Reverse Voltage Soldering Temperature (2mm from the case for 10sec) Symbol Tstg Top Ptot IF IFRM VR Tsld Limit -55 to +125C -40 to +85C 250 mW 110 mA 180 mA 1.5V 260C
Thermal Characteristics
Parameter Thermal Resistance-Infinite Heat Sink Thermal Resistance-No Heat Sink Temperature Coefficient - Optical Power Temperature Coefficient - Wavelength Symbol Rthjc Rthja dP/dTj d/dTj -0.6 0.3 Min. Typ. Max. 100 400 Unit C/W C/W %/C nm/C
Typical Fiber-Coupled Power
Core Diameter/Cladding Diameter Numberical Aperture 50/125 m 0.20 20W 62.5/125 m 0.275 50W 100/140 m 0.29 100W 200/230 m 0.37 140W
2
MF388
%
100
%
100
r
RELATIVE FIBER-COUPLED POWER
RELATIVE FIBER-COUPLED POWER
Oc = 62.5Em
80
80
z
60
60
40
40
r
20
c
Em
20
0 0.5 2.0 3.0 mm
0 0 20 40 60 80 100 m
z - AXIAL DISPLACEMENT OF FIBER
r
Figure 1
%
100
Figure 2
mW
300
80
50% DUTY CYCLE
MAX. ELECTRICAL POWER DISSIPATION
RELATIVE FIBER-COUPLED POWER
200
60
DC
INFINITE HEAT SINK
NO HEAT SINK
40
100
20
HEAT SINKED
0 0 40 80 120 160 200 mA
0 0 50 100 150C
FORWARD CURRENT
OPERATING TEMPERATURE
Figure 3
mA
200
Figure 4
FORWARD CURRENT
100
0 0 1 2 3V
FORWARD VOLTAGE
Figure 5
3
BOTTOM VIEW ( 10 : 1 )
3,8 2,54 0,6
n1,17 + 0,05 (3x) n0,45 + 0,03 (3x) -
SIDE VIEW
13,460,76
0
0,04
45
R2,7
R0,2 max (4x)
3, 6
1, 0 2 0, 3
Lens n1.50.05 R0,4 max
NOTES:1. All dimensions in mm. 2. General tol. ISO-2768-mK. 3. Coating: Case: Ni 1,5-2,5 m. Header: Ni 2-3 m / Au min 1,32 m.
n4,7
0,3 max glass overmould (2x)
(c) Zarlink Semiconductor 2002. All rights reserved.
Package code Previous package codes
Drawing type
ISSUE ACN DATE
1
JS004 076R1 A
TB
Package drawing, TO-46 with lens Title
22-MAR-03
APPRD. TD/BE
JS004076
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