ETC IF-E91B

CatalogFilm_12601. 12/20/01 4:30 PM Page 61
Plastic Fiber Optic IR LEDS
IF-E91
DESCRIPTION
The IF-E91A and IF-E91B are high-output medium-speed infrared LEDs in a
“connector-less” style plastic fiber optic package. The output spectrum peaks
at 950 nm for the IF-E91A and 880 nm for the IF-E91B. The device package
features an internal micro-lens, and a precision-molded PBT housing ensures
efficient optical coupling into standard 1000 µm plastic fiber cable.
A P P L I C AT I O N H I G H L I G H T S
The high output and fast transition times of the IF-E91A and IF-E91B make
them suitable for low-cost analog and digital data links. Used with an IF-D96
photologic detector, the IF-E91A and IF-E91B can achieve data rates of 500
Kbps and 1 Mbps respectively at link distances up to 7 m. The drive circuit
design is simpler than required for laser diodes, making the IF-E91A and IF-E91B
excellent low-cost alternatives in a variety of analog and digital applications.
A P P L I CAT I O N S
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Low-Cost Analog and Digital
Data Links
Digitized Audio
Optical Sensors
Medical Instruments
Robotics Communications
Motor Controller Triggering
EMC/EMI signal Isolation
Electronic Games
Intra-System Links: Board-toBoard, Rack-to-Rack
F E AT U R E S
◆ Excellent Linearity
◆ No Optical Design Required
◆ Mates with Standard 1000 µm Core Jacketed Plastic Fiber Cable
◆ Internal Micro-Lens for Efficient Coupling
◆ Inexpensive Plastic Connector Housing
◆ Connector-Less Fiber Termination and Connection
◆ Interference-Free Transmission from Light-Tight Housing
M A X I M U M R AT I N G S
C HA R A C T E R I S T I C S (TA=25°C)
(TA =25°C)
Parameter
Symbol
Peak Wavelength
λPEAK
IF-E91A IF-E91B* Unit
Operating and Storage
Temperature Range
(TOP,TSTG) .....................-40° to 85°C
950
880
nm
Spectral Bandwidth (50% of IMAX)
∆λ
40
80
nm
Output Power Coupled into Plastic Fiber
(1 mm core diameter). Distance Lens to Fiber
≤0.1 mm, 10 cm polished fiber, IF=20 mA
Switching Times (10% to 90% and
90% to 10%) (RL=47 Ω, IF=10 mA)
Capacitance
Φ min
>100
-10
>75
-11.2
µW
dBm
1.0
25
0.5
25
µs
pF
Junction Temperature (TJ) .............85°C
Soldering Temperature
(2 mm from case bottom)
(TS) t ≤ 5s .................................240°C
Reverse Voltage (VR).........................3 V
Power Dissipation
(PTOT) TA =25°C...................100 mW
De-rate Above 25°C ..........1.33 mW/°C
Forward Voltage (IF=50 mA)
Temperature Coefficient, λPEAK
tr, tf
C0
Vf
1.5 max
1.7 max
V
TCλ
0.3
0.3
nm/K
* IF-E91D recommended for new designs
Forward Current, DC (IF)
IF-E91A ....................................50 mA
IF-E91B ..................................100 mA
Surge Current (IFSM) t ≤ 10 µsec
IF-E91A ........................................ 2 A
IF-E91B .........................................2 A
Industrial Fiber Optics, Inc. • www.i-fiberoptics.com
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CatalogFilm_12601. 12/20/01 4:30 PM Page 58
IF-E91
FIGURE 1.
Plastic Fiber Optic IR LEDs
Normalized power launched versus forward current.
FIGURE 3. Cross-section of fiber optic device.
F I B E R T E R M I NAT I O N I N S T R U C T IO N S
1. Cut off the ends of the optical fiber with a singleedge razor blade or sharp knife. Try to obtain a
precise 90-degree angle (square).
2. Insert the fiber through the locking nut and into the
connector until the core tip seats against the internal
micro-lens.
3. Screw the connector locking nut down to a snug fit,
locking the fiber in place.
FIGURE 2.
Typical spectral output vs. wavelength.
PACKAGE IDENTIFICATION:
◆ E91A– Blue housing w/ Blue dot
E91B– Blue housing w/ Green dot
• PIN 1. Cathode
• PIN 2. Anode
FIGURE 4.
42
Case outline.
Industrial Fiber Optics, Inc. • www.i-fiberoptics.com