PRODUCT INFORMATION
870
nm
1A229
High-Performance LED
Battery-Operated Equipment
This device operates at very low drive
current, which makes it well suited for
battery-operated equipment. In fact, it
can be driven directly by TTL circuitry.
Optical and Electrical Characteristics
PARAMETER
SYMBOL
MIN.
TYP
.
MAX.
UNIT
(25°C Case Temperature)
TEST CONDITION
Fiber-Coupled Power
(Fig.1, 2,& 3) (Table 1)
P
fiber
t
r,tf
f
c
p
2
3
85
4
100
W
ns
MHz
890
nm
nm
1.6
1
V
A
pF
I
F
=5 mA
(Note 1)
Fiber:
50/125
m
Graded
Index
Rise and Fall Time
(10-90%)
I
F
=5 mA
(no bias)
Bandwidth
(3dBel)
I
F
=5 mA
I
F
=5 mA
I
F
=5 mA
I
F
=5 mA
V
R
=1V
NA=0.20
Peak Wavelength
Spectral Width
(FWHM)
Forward Voltage
(Fig. 4)
Reverse Current
Capacitance
850
870
60
V
F
I
R
C
1.4
250
V
R
= 0V, f=1 MHz
Note 1:
Measured at the exit of 100 meters of fiber.
Ø4.7
Ø1.5
0.6
3.7
Absolute Maximum Ratings
PARAMETER
14
SYMBOL
LIMIT
Storage Temperature
Operating Temperature
Electrical Power Dissipation
T
stg
Top
P
tot
10 kHz)
50%, f 1 MHz)
-55 to +125 C
-55 to +125 C
16 mW
10 mA
20 mA
1.5 V
260 C
0.4
CATHODE
ANODE
All dimensions in mm
Continuous Forward Current
(f
Peak Forward Current
(duty cycle
Reverse Voltage
I
F
I
FRM
V
R
T
sld
2.5
5.4
BOTTOM VIEW
The anode is in electrical contact with the case.
Soldering Temperature
(2mm from the case for 10 sec)
TO-46 Package With Lens
Thermal Characteristics
PARAMETER
SYMBOL
MIN.
TYP.
MAX.
UNIT
Temperature Coefficient - Optical Power
dP/dT
j
Temperature Coefficient -W
avelength
d /dT
j
-0.6
0.3
%/ C
nm/ C
11930.11 1994-09-20
Europe:
Tel
(46) 8 58 02 45 00
Fax
(46) 8 58 02 01 10
Tel
(44) 1291 436180
Fax
(44) 1291 436771
America:
Tel
1-800-96MITEL
Fax
(613) 592-6909
Asia:
Tel
(65) 293 5312
Fax
(65) 293 8527
High-Performance LED
1A229
870
nm
Typical Fiber-Coupled Power
Core Diameter/Cladding Diameter
Numerical Aperture
RELATIVE FIBER-COUPLED POWER
%
100
FIGURE 1
%
100
FIGURE 2
r
z = opt.
Øc = 50ʵm
80
RELATIVE FIBER-COUPLED POWER
50/125 m
0.20
62.5/125 m
0.275
100/140 m
0.29
200/230 m
0.37
80
z
3 W
Table 1
8 W
15 W
20 W
60
60
40
40
r
20
r = opt.
Øc = 50ʵm
z
20
0
0.5
1.0
1.5
2.0
2.5
3.0
mm
0
0
20
40
60
80
100
µm
z - AXIAL DISPLACEMENT OF FIBER
r - RADIAL DISPLACEMENT OF FIBER
%
100
FIGURE 3
mA
20
FIGURE 4
RELATIVE FIBER-COUPLED POWER
80
50% DUTY CYCLE
60
DC
FORWARD CURRENT
HEAT SINKED
10
40
20
0
0
4
8
12
16
20
mA
0
0
1
2
3
V
FORWARD CURRENT
FORWARD VOLTAGE
Clip for SC-2A
R 1.00
3.3000
5.6000
80,000
20.8200
0.5000
10,2500
10.3000
4.9500
0.5000
4.5000
5.0800
3.6450
Clip for Pigtail-3A
10.70
0.50
10.25
10.30
4.95
0.50
4.50
0.85
5.08
3.65
PRODUCT INFORMATION
ST
-2A
Package
Emitter or Detector in ST
®
Package
Mitel emitters and detectors can be
provided in this low-profile ST
®
package. The device is electrically
isolated from the ST
®
receptacle to
facilitate electrical connection. And
optimum fiber-coupled power or
responsivity is ensured by active
alignment against the fiber.
Absolute Maximum Ratings
PARAMETER
SYMBOL
LIMIT
Operating & Storage Temperature
ST-2A (Note 1)
T
stg ,
T
op
-40 to +85 C
Note 1:
Temperature range can be extended to -55° to +125°C on request.
Thermal Characteristics
PARAMETER
SYMBOL
MIN.
TYP.
MAX.
UNIT
Thermal Resistance - Infinite Heat Sink
(Note 2)
R
thcc
R
thca
Rthca
80
40
200
C/W
C/W
C/W
Thermal Resistance - No Heat Sink
(Note 2)
Thermal Resistance - On PC Board
(Note 2)
Note 2:
Add Rthjc for emitter or detector to estimate the total thermal resistance.
2-56 UNC - 2B
max.0.5
3/8"-32 UNEF
FIBER
END
MARKING SIDE
SLOT SIDE
0.006
Ø2.502
+0.01
0
12.7
9.5
Ø2.5
+0
-0.004
7.89
7.6
min.12
3.9
5.4
20.1
MATING FERRULE
*
(not included)
All Dimensions in mm
*
The fiber-coupled power/responsivity is guaranteed to meet the LED/PIN data sheet - provided a ferrule meeting this specification is used.
Mechanical Outline of Diode in ST-2A Housing
(ST
is a registered trademark of AT&T)
103326 1994-09-20
Europe:
Tel
(46) 8 58 02 45 00
Fax
(46) 8 58 02 01 10
Tel
(44) 1291 436180
Fax
(44) 1291 436771
America:
Tel
1-800-96MITEL
Fax
(613) 592-6909
Asia:
Tel
(65) 293 5312
Fax
(65) 293 8527
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