MITEL 1A225 Datasheet
PRODUCT INFORMATION
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880nm
1A225
High-Performance LED
Single-Mode Datacom
11905.11 1998-02-04
0.6
14
Ø1.5
Ø4.7
3.7
0.4
5.4
2.5
CASE
ANODE
CATHODE
BOTTOM VIEW
The diode chip is isolated from the case.
TO-46 Package With Lens
All dimensions in mm
Compared with lasers and ELEDs,
this device can reduce device costs in
single-mode Ethernet networks. And
since it’s packaged in a hermeti-cally
sealed can, it achieves high reliability
even in harsh operating environments.
Thermal Characteristics
Absolute Maximum Ratings
PARAMETER SYMBOL MIN. TYP. MAX. UNIT
Thermal Resistance- Infinite Heat Sink R
thjc
300 8C/W
Thermal Resistance- No Heat Sink R
thja
600 8C/W
Temperature Coefficient- Optical Power dP/dT
j
-0.4 %/8C
Temperature Coefficient-Wavelength dl/dT
j
0.3 nm/8C
PARAMETER SYMBOL LIMIT
Storage Temperature T
stg
-55 to +1258C
Operating Temperature (derating: Fig.4) Top -55 to +1258C
Electrical Power Dissipation(derating: Fig.4) P
tot
130 mW
Continuous Forward Current (f<10 kHz) I
F
60 mA
Peak Forward Current (duty cycle<50%, f>1 MHz) I
FRM
100 mA
Reverse Voltage V
R
1.5 V
Soldering Temperature (2mm from the case for 10 sec) T
sld
2608C
Fiber:
10/125mm
Single
Mode
NA=0.11
Optical and Electrical Characteristics
(25°C Case Temperature)
Note 1: Measured at the exit of 100 meters of fiber.
PARAMETER SYMBOL MIN. TYP. MAX. UNIT TEST CONDITION
Fiber-Coupled Power P
fiber
2.0 2.5 mW IF=50 mA
(Fig. 1,2,&3) (Table 1) (Note 1)
Rise and Fall Time tr,t
f
710ns IF=50 mA
(10-90%) (no bias)
Bandwidth f
c
50 MHz IF=50 mA
(3dBel)
Peak Wavelength l
p
860 880 900 nm IF=50 mA
Spectral Width (FWHM) Dl 50 nm IF=50 mA
Forward Voltage (Fig.5) V
F
2.0 2.2 V IF=50 mA
Reverse Current I
R
20 mA VR=1V
Capacitance C 250 pF VR=0V, f=1MHz
880nm
1A225
High-Performance LED
0
20
40
60
80
100
%
0.5
1.0 1.5
2.0
2.5
3.0
mm
z - AXIAL DISPLACEMENT OF FIBER
RELATIVE FIBER-COUPLED POWER
r
r = opt.
Øc = 10ʵm
z
FIGURE 1
0
20
40
60
80
100
%
0
20 40
60
80
100
µm
r
z = opt.
Øc = 10ʵm
z
r - RADIAL DISPLACEMENT OF FIBER
RELATIVE FIBER-COUPLED POWER
FIGURE 2
0
20
40
60
80
100
%
0
40 80
120
160
200
mA
RELATIVE FIBER-COUPLED POWER
FORWARD CURRENT
50% DUTY CYCLE
DC
HEAT SINKED
FIGURE 3
FORWARD VOLTAGE
FORWARD CURRENT
mA
200
100
0
0
1 2
3
V
FIGURE 5
mW
300
200
100
0
0 50 100
150
¡C
MAX. ELECTRICAL POWER DISSIPATION
NO HEAT SINK
OPERATING TEMPERATURE
FIGURE 4
INFINITE
HEAT SINK
Core Diameter/Cladding Diameter
Numerical Aperture
10/125mm 50/125 mm 62/125mm 100/140 mm
0.11 0.20 0.275 0.29
Table 1
Typical Fiber-Coupled Power
2.5mW 90 mW 150mW 250mW
5.6000
3.3000
Clip for SC-2A
R 1.00
80,000
0.5000
20.8200
10,2500
10.3000
4.9500
0.5000
4.5000
5.0800
3.6450
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