OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible.
OPTEK Technology Inc. — 1645 Wallace Drive, Carrollton, Texas 75006
Phone: (972) 323-2200 or (800) 341-4747 FAX: (972) 323-2396 sensors@optekinc.com www.optekinc.com
Issue A 03/09
Page 1 of 3
High Reliability Hermetic Infrared Emitting Diode
OP235, OP236 (TX, TXV)
Description:
Each device in this series is a gallium aluminum arsenide (GaAIAs) infrared emitting diode, mounted in a hermetic
metal TO-46 housing with 0.50” (12.70 mm) leads. The gallium aluminum arsenide feature provides a higher
radiated output than gallium arsenide at the same forward current, while the 890 nm wavelength closely matches
the spectral response of silicon phototransistors. Devices have lens cans that provide an 18° beam angle
between half power points, which facilitates the easy design of beam interrupt applications with the OP804 and
OP805 series of high reliability phototransistors.
TX and TXV devices are processed to OPTEK’s military screening program patterned after MIL-PRF -19 500. After
100% screening, Group A and B are performed on every lot and a Group C test is performed eve ry six months.
Please refer to Application Bulletins 208 and 210 for additional design information and reliability (degradation) data.
Contact your local representative or OPTEK for more information.
Features:
TO-46 hermetically sealed package with lens
Twice the power output of GaAs at same drive current
Characterized to define infrared energy along mechanical axis of
device
Narrow beam angle
Processed to MIL-PRF-19500.
Applications:
Non-contact reflective object sensor
Assembly line automation
Machine automation
Machine safety
End of travel sensor
Door sensor
Military and harsh environments
Part
Number
LED
Peak
Wavelength
Output Power
(mW/cm2)
Min / Max
IF (mA)
Typ / Max
Total
Beam
Angle
Lead
Length
OP235TX
890 nm
1.5 / NA
50 / 100 18° 0.50"
OP235TXV
OP236TX 3.5 / NA
OP236TXV
2
1
Pin # LED Sensor
1 Anode Collector / Cathode
2 Cathode Emitter / Anode
DIMENSIONS ARE IN:
INCHES
[ MILLIMETERS]
OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible.
OPTEK Technology Inc. — 1645 Wallace Drive, Carrollton, Texas 75006
Phone: (972) 323-2200 or (800) 341-4747 FAX: (972) 323-2396 sensors@optekinc.com www.optekinc.com
Issue A 03/09
Page 2 of 3
High Reliability Hermetic Infrared Emitting Diode
OP235, OP236 (TX, TXV)
Absolute Maximum Ratings (TA = 25° C unless otherwise noted)
Storage Temperature Range -65o C to +150o C
Operating Temperature Range -55o C to +125o C
Reverse Voltage 2.0 V
Forward DC Current 100 mA
Lead Soldering Temperature [1/16 inch (1.6 mm) from case for 5 seconds with soldering iron] 260° C(1)
Power Dissipation 200 mW(2)
Notes:
1. RMA flux is recommended. Duration can be extended to 10 seconds maximum when flow soldering.
2. Derate linearly 2.00 mW/° C above 25° C.
3. EE(APT) is a measurement of the average radiant intensity within the cone formed by the measurement surface, a radius of
1.429” (36.30 mm) measured from the lens side of the tab to the sensing surface and a sensing surface of 0.250” (6.35 mm) in
diameter forming a 10° cone. EE(APT) is not necessarily uniform within the measured area.
Electrical Characteristics (TA = 25° C unless otherwise noted)
SYMBOL PARAMETER MIN TYP MAX UNITS TEST CONDITIONS
EE(APT)
Apertured Radiant Incidence
OP235 (TX, TXV)
OP236 (TX, TXV)
1.5
3.5
-
-
-
-
mW/cm2 IF = 100 mA
VF
Forward Voltage
1.1
1.3
0.9
-
-
-
2.0
2.2
1.8
V
IF = 100 mA
IF = 100 mA, TA = -55° C
IF = 100 mA, TA = 100° C
IR Reverse Current - - 100 µA VR= 2.0 V
λP Wavelength at Peak Emission - 890 - nm IF = 100 mA
β Spectral Bandwidth between
Half Power Points - 50 - nm IF = 100 mA
θHP Emission Angle at Half Power Points - 18 - Degree IF = 100 mA
OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible.
OPTEK Technology Inc. — 1645 Wallace Drive, Carrollton, Texas 75006
Phone: (972) 323-2200 or (800) 341-4747 FAX: (972) 323-2396 sensors@optekinc.com www.optekinc.com
Issue A 03/09
Page 3 of 3
High Reliability Hermetic Infrared Emitting Diode
OP235, OP236 (TX, TXV)
OP235, OP236 (TX, TXV)
0.6
0.8
1.0
1.2
1.4
1.6
1.8
0 5 10 15 20 25 30 35 40 45 50
Forward Cur r ent ( m A)
Typic al For wa rd Voltage (V)
-60°C
-40°C
-20°C
0°C
20°C
40°C
60°C
80°C
100°C
120°C
Forward Voltage vs Forward Current
vs Temperature
0.0
0.5
1.0
1.5
2.0
2.5
0 102030405060708090100
Forward Current IF (mA)
Relative Output Power
-60°C
-40°C
-20°C
0°C
20°C
40°C
60°C
80°C
100°C
120°C
Normali z ed at 50 mA and 20° C
Optical Power vs Forward Current
vs Temperature
0
2
4
6
8
10
12
14
16
18
20
0.2 '' 0.4 '' 0.6 '' 0.8 '' 1.0 '' 1.2 '' 1 .4 '' 1.6 '' 1.8 '' 2.0 ''
Distan ce ( in ches )
Normalized Output Power
10 mA
20 mA
30 mA
40 mA
50 mA
60 mA
80 mA
100 mA
120 mA
Norma liz ed at 1.0" and 50 mA
Forward Current
Distance vs Output Power vs Forw ard
Current