Mitel MF431 Datacom, telecom, general purpose led Datasheet

MF431 Datacom, Telecom, General Purpose LED
MF431 ST
ST Assembly
Ordering Information
PART #
RECEPTACLE
MF431 ST
ST
-40°C to +85°C
Applications
Description
• FDDI
• ATM-SDH/SONET 155Mbps
• Intra-Office
Telecommunications
• General Purpose
This LED is designed for
Datacom, Telecom and General
Purpose Applications. It has a
long wavelength LED for links up
to 10 km at 125Mbps. It meets
standards for FDDI (ANSI
X3T9.5) and ATM155Mbps.
Features
The device is optimized for
62.5/125µm fiber and actively
aligned in an ST® receptacle.
The MF432 PIN Photodiode
is recommended as Receiver
for this LED.
• 1320nm Surface-Emitting
LED
• 125MHz Bandwidth
• Designed for 62.5/125µm
Fiber
• Aligned in ST® Receptacle
• MTTF >1,000,000 hours
MF431 Functional Diagram
FIBER
CASE
ANODE
DETECTOR
CATHODE
BOTTOM VIEW
MF431 LED
13324.11 1997-04-01
10
Datacom, Telecom, General Purpose LED MF431
Absolute Maximum Ratings*
Parameter
Symbol
Min.
Max.
Units
Tstg
-40
+85
°C
Operating Temperature (Fig 4)
Top
-40
+85
°C
Electrical Power Dissipation (Fig 4)
Ptot
160
mW
IF
80
mA
Storage Temperature
Continuous Forward Current (f≤10kHz)
Peak Forward Current (duty cycle ≤50%, f≥1MHz)
IFRM
130
mA
Reverse Voltage
VR
0.5
V
Soldering Temperature (Note 1)
Tsld
260
°C
*Exceeding these values may cause permanent damage. Functional operation under these conditions is not implied.
Note 1: 2mm from the case for 10s.
Optical & Electrical Characteristics (Case Temperature -25 to +70˚C)
Parameter
Symbol
Min.
Pfiber
-19
Fiber-Coupled-Power (Fig 1, 2, 3)
Rise & Fall Time (10-90%, no bias)
tr tf
Bandwidth (3dBel)
fc
Peak Wavelength
λp
Spectral Width (FWHM)
Forward Voltage (Fig 5)
Reverse Current
IR
Capacitance
C
Typ.
Max.
2.0
Units
Test Conditions
dBm
IPeak=60mA (Note 1, 2)
2.5
ns
IF=60mA (Note 2, 3)
MHz
IF=60mA (Note 2)
1320
1355
nm
IF=60mA (Note 3)
∆λ
135
170
nm
IF=60mA (Note 3)
VF
1.3
1.65
V
IF=60mA
100
µA
VR=1V
pF
VR=0V, f=1MHz
125
1285
200
Note 1: Average power at 10MHz/50% duty cycle. Measured at the exit of 100m of fiber.
Note 2: 62.5/125µm graded index fiber (NA = 0.275).
Note 3: Meets the FDDI ANSI X3T9.5 specification for FDDI.
Thermal Characteristics
Parameter
Max.
Units
Thermal Resistance - Infinite Heat Sink
Symbol
Rthjc
Min.
Typ.
200
˚C/W
Thermal Resistance - On PCB
Rthjb
300
˚C/W
Temperature Coefficient - Optical Power
dP/dTj
-0.75
%/˚C
Temperature Coefficient - Wavelength
∆λ/dTj
0.45
nm/˚C
11
MF431 Datacom, Telecom, General Purpose LED
%
%
100
100
RELATIVE FIBER-COUPLED POWER
RELATIVE FIBER-COUPLED POWER
r
80
60
40
r
r = opt.
Øc = 62.5 µm
20
z = opt.
Øc = 62.5 µm
80
z
60
40
20
z
0
0
0.5
1.0
1.5
2.0
0
3.0 mm
2.5
z - AXIAL DISPLACEMENT OF FIBER
20
40
%
mW
300
MAX. ELECTRICAL POWER DISSIPATION
RELATIVE FIBER-COUPLED POWER
100 µm
Figure 2
100
50% DUTY CYCLE
60
40
80
r - RADIAL DISPLACEMENT OF FIBER
Figure 1
80
60
DC
20
200
ON PC BOARD
100
INFINITE
HEAT SINK
HEAT SINKED
0
0
0
40
80
120
160
200 mA
Figure 3
mA
FORWARD CURRENT
100
0
1
50
100
Figure 4
200
0
0
OPERATING TEMPERATURE
FORWARD CURRENT
2
3V
FORWARD VOLTAGE
Figure 5
12
150 °C
Datacom, Telecom, General Purpose LED MF431
MF431 ST Mechanical Data
2-56 UNC - 2B
3/8"-32 UNEF
max.0.5
0.4
9.5
0.006
Ø2.502
+0.01
0
5.4
SLOT SIDE
MARKING SIDE
12.7
2.5
FIBER
END
Ø2.5
+0
-0.004
7.6
7.89
3.9
RECOMMENDED
FERRULE
(not included)
5.4
min.12
20.1
Note: The LED chip is isolated from the case. All dimensions in mm.
Typical Drive Circuit
ST Packaging Hardware
3/8 - 32 UNEF
2B THREAD
MF431
ECL
9.53
VREF
12.70
1.65
I
HEX-NUT
-5V
10.41
14.27
0.46
WASHER
13
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