HFE4074-323/XXX
High Power Fiber Optic LED
FEATURES
•
Provides 10 µW into 50/125 micron fiber
•
•
•
•
High speed up to 100 MHz typical
Optimized for 50 mA operation
Designed to operate with Honeywell fiber optic
receivers
Mounting options
SMA single hole
ST single hole
SMA PCB
ST PCB
SMA 4 hole
DESCRIPTION
The HFE4074-323/XXX is a high radiance GaAIAs
850 nanometer LED optimized for coupling into small
fiber core diameters at a forward current of 50 mA. The
"Caprock"™ LED chip combines high power coupling with
wide bandwidth. The peak wavelength is matched for use
with Honeywell silicon fiber optic detectors and receivers.
APPLICATION
The HFE4074-323/XXX is a high radiance LED packaged
in a fiber optic connector that aligns the optical axis of the
base component to the axis of the optical fiber. Data
rates can vary from DC to above 100 MHz depending
upon component application. The LED converts electrical
current into optical power that can be used in fiber optic
communications. As the current varies (typically from 10
to 100 mA), the light intensity increases proportionally.
When high currents (near the 100 mA range) flow
through the HFE4074-323/XXX continually, heat sinking
is recommended to maintain the expected long life. If the
HFE4074-323/XXX is heat sinked the package has a
typical thermal resistance of 250¡C per watt. If not heat
sinked, typical thermal resistance is 500¡C per watt.
The HFE4074-323/XXX sends high optical power into
standard fiber optic cables. A 0.25 mm diameter glass
microlens over the "Caprock"™ junction collimates the
light, increasing the intensity, which directs greater power
into standard fiber optic cables.
Honeywell reserves the right to make
changes in order to improve design and
supply the best products possible.
h
233
HFE4074-323/XXX
High Power Fiber Optic LED
ELECTRO-OPTICAL CHARACTERISTICS
(TÙ = 40¡C to +100¡C unless otherwise stated)
PARAMETER
Fiber Coupled Power
HFE4074-323/XXX
Forward Voltage
Reverse Voltage
Peak Wavelength
Spectral Bandwidth (FWHM)
Response Time
10-90%
90-10%
Analog Bandwidth
PÞ Temperature Coefficient
Series Resistance
Capacitance
V¸
Báß
æÎ
êæ
tß
t¸
BWE
êPÞ/êT
RØ
C
SYMBOL
PÞÙ
10
-20.0
1.5
1.8
810
20
-17.0
1.84
5.0
850
50
3
5
100
-0.02
4.0
35
40
-14.0
2.28
885
µW
dBm
V
V
nm
nm
ns
ns
MHz
dB/¡C
í
pF
MIN
TYP
[À]
MAX
UNITS
TEST CONDITIONS
I¸ = 50 mA, 50/125 micron,
0.20 NA fiber [Á]
I¸ = 50 mA
Iß = 10 µA
I¸ = 50 mA DC
I¸ = 50 mA DC
1 V Prebias, 100 mA peak [Â]
6.3
6.3
I¸ = 100 mA DC, sinusoidal
modulation [Â]
I¸ = 50 mA
DC
Vß = 0 V, f = 1 MHz
Notes
1. Typical specifications are for operations at TÙ= 25¡C.
2. HFE4074-323/XXX is tested using a 50/125 micron fiber located in a special fixture. The fiber is mechanically centered with respect to
the outside can diameter. Actual coupled power values may vary due to mechanical alignment procedures and/or receptacle and fiber
tolerances.
3. HFE4074-323/XXX must be heat sinked for continuous I¸ > 50 mA operation (i.e. mounted in a metal connector with thermally
conductive epoxy).
ABSOLUTE MAXIMUM RATINGS
(25¡C Free-Air Temperature unless otherwise noted)
Storage temperature
Case operating temperature
Lead solder temperature
Continuous forward current
Continuous forward current
(heat sinked)
Reverse voltage
-65 to + 150¡C
-40 to +100¡C
260¡C, 10 s
50 mA
100 mA
1 V @ 10 µA
FIBER INTERFACE
Honeywell LEDs are designed to interface with
multimode fiber with sizes ranging from 50/125 to
200/230 microns. Honeywell performs final tests using
50/125 micron core fiber. All multimode fiber optic cables
between 50/125 and 200/230 should operate with similar
excellent performance. See table for typical powers.
TYPICAL COUPLED POWER (µW/dBm)
@ I = 50mA
Dia.
8/125
50/125
62.5/125
100/140
Index
Step
Graded
Graded
Graded
N.A.
---
0.20
0.28
0.29
-323
0.6/-32.0
20/-17.0
44/-13.6
116/-9.4
Stresses greater than those listed under "Absolute Maximum
Ratings" may cause permanent damage to the device. This is a
stress rating only and functional operation of the device at these or
any other conditions above those indicated in the operational
section of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods of time may affect
reliability.
234
h
Honeywell reserves the right to make
changes in order to improve design and
supply the best products possible.
HFE4074-323/XXX
High Power Fiber Optic LED
ORDER GUIDE
Description
Standard screening, minimum
power out 10 µW, t²/t¶< 6.5 ns
MOUNTING OPTIONS
CAUTION
substitute XXX with one of the following 3
letter combinations
SMA single hole
ST single hole
SMA PCB
ST PCB
SMA 4 hole
Dimensions on page 203
Fig. 1
Typical Optical Power Output vs Forward
FIBER021.GRA
Current
Fig. 2
Typical Spectral Output vs Wavelength
FIBER105.GRA
WARNING
Catalog Listing
HFE4074-323/XXX
Under certain application conditions, the infrared optical output
of this device may exceed Class 1 eye safety limits, as defined
by IEC 825-1 (1993-11). Do not use magnification (such as a
microscope or other focusing equipment) when viewing the
device's output.
- AAA
- BAA
- ABA
- BBA
- ADA
The inherent design of this component causes
it to be sensitive to electrostatic discharge
(ESD). To prevent ESD-induced damage
and/or degradation to equipment, take normal
ESD precautions when handling this product.
Fig. 3
Typical Optical Power Output vs Case
FIBER025.GRA
Temperature
All Performance Curves Show Typical Values
Honeywell reserves the right to make
changes in order to improve design and
supply the best products possible.
h
235
European Connectorized
LEDs/Transmitters
Honeywell LED/transmitter components are available in the following connector styles. Each style has a three-digit reference
used in the order guides.
SMA SINGLE HOLE MOUNTING (REF.: AAA)
ST SINGLE HOLE MOUNTING (REF.: BAA)
SMA PCB MOUNTING (REF.: ABA)
Honeywell Optoelectronics reserves the right to make
changes at any time in order to improve design and
supply the best products possible.
203
European Connectorized
LEDs/Transmitters
ST PCB MOUNTING (REF.: BBA)
SMA 4 HOLE MOUNTING (REF.: ADA)
204
Honeywell Optoelectronics reserves the right to make
changes at any time in order to improve design and
supply the best products possible.
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