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.1 01/07
Page 1 of 3
Plastic Infrared Emitting Diode
OP240 Series
OP245 Series
OP240 (A, B, C, D)
INCHES
[MILLIMETERS]
DIMENSIONS ARE IN:
Description:
Each device in this series is a high intensity gallium aluminum arsenide infrared emitting diode that is suited for
use as a PCBoard mounted slotted switch or an easy mount PCBoard interrupter.
Each dome lens OP240 and OP245 device is an 890 nm diode that is molded in an IR-transmissive clear epoxy
side-looking package. OP240 is m echanically and spectrall y matched to the OP550 and OP560 series of
phototransistors. OP245 is mechanically and spectrally matched to the OP555 and OP565 serie s devices.
Please refer to Application Bulletins 208 and 210 for additional design information and reliability (degradation) data.
Applications:
• Space-limited applications
• PCBoard mounted slotted switch
• PCBoard interrupter
RoHS
Features:
• Wide irradiance pattern
• Side-looking package for space-limited applications
• Wavelength matched to silicon’s peak response
• Mechanically and spectrally matched to other OPTEK products
2
1
Pin # LED
1 Cathode
2 Anode
CONTAINS POLYSULFONE
To avoid stress cracking, we suggest using
ND Industries’ Vibra-Tite for thread-locking.
Vibra-Tite evaporates fast without causing structural
failure in OPTEK'S molded plastics.
Ordering Information
Part
Number LED Peak
Wavelength Lens
Type Total Beam
Angle Lead
Length
OP240A
890 nm
Dome
40° 0.50"
minimum
OP240B
OP240C
OP240D
OP245A
OP245B
OP245C
OP245D
Recessed
OP240 OP245
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.1 01/07
Page 2 of 3
Plastic Infrared Emitting Diode
OP240 Series
OP245 Series
Notes:
1. RMA flux is recommended. Duration can be extended to 10 seconds maximum when flow soldering. A maximum of 20 grams force
may be applied to the leads when soldering.
2. Derate linearly 1.33 mW/° C above 25° C.
3. EE(APT) is a measurement of the average apertured radiant energy incident upon a sensing area 0.180” (4.57 mm) in diameter
perpendicular to and centered on the mechanical axis of the lens and 0.653” (6.60 mm) from the lens tip. EE(APT) is not necessarily
uniform within the measured area.
CONTAINS POLYSULFONE
To avoid stress cracking, we suggest using
ND Industries’ Vibra-Tite for thread-locking.
Vibra-Tite evaporates fast without causing structural
failure in OPTEK'S molded plastics.
OP245 (A, B, C, D)
2
1
Pin # LED
1 Cathode
2 Anode
INCHES
[MILLIMETERS]
DIMENSIONS ARE IN:
Electrical Characteristics (TA = 25°C unless otherwise noted)
SYMBOL PARAMETER MIN TYP MAX UNITS TEST CONDITIONS
Input Diode
EE (APT)
Apertured Radiant Incidence
OP240A, OP245A
OP240B, OP245B
OP240C, OP245C
OP240D, OP245D
0.60
0.40
0.20
0.05
-
-
-
-
-
1.20
0.86
-
mW/cm2 IF = 20 mA(3)
VF Forward Voltage - - 1.80 V IF = 20 mA
IR Reverse Current - - 100 µA VR= 2.0 V
λP Wavelength at Peak Emission - 890 - nm IF = 10 mA
B Spectral Bandwidth between Half Power
Points - 80 - nm IF = 10 mA
∆λP /∆T Spectral Shift with Temperature - ±0.18 - nm/°C IF = Constant
θHP Emission Angle at Half Power Points - 40 - Degree IF = 20 mA
tr Output Rise Time - 500 - ns
tf Output Fall Time - 250 - ns
IF(PK)=100 mA, PW=10 µs, and
D.C.=10.0%
Absolute Maximum Ratings (TA=25°C unless otherwise noted)
Storage and Operating Temperature Range -40o C to +100o C
Reverse Voltage 2.0 V
Continuous Forward Current 50 mA
Peak Forward Current 3.0 A
Lead Soldering Temperature [1/16 inch (1.6 mm) from case for 5 seconds with soldering iron] 260° C(1)
Power Dissipation 100 mW(2)
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.1 01/07
Page 3 of 3
Plastic Infrared Emitting Diode
OP240 Series
OP245 Series
OP240, OP245 (A, B, C, D)
Forward Voltage vs Forward Current vs
Temperature
0.9
1.0
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
0 5 10 15 20 25 30 35 40 45
Forward Cu rren t (m A)
Typical Forward V ol tage (V)
-65°C
-40°C
-20°C
+0°C
+20°C
+40°C
+60°C
+80°C
+100°C
+125°C
Opt ic a l P ower vs I
F
vs Temp
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
0 5 10 15 20 25 30 35 40 45 50
Forward Current I
F
(mA)
Normalized Optical Power
-65°C
-40°C
-20°C
+0°C
+20°C
+40°C
+60°C
+80°C
+100°C
+125°C
Norm a li z ed at 20 mA and 20
o
C
Distance vs Outp ut Pow e r vs Forward Current
0
1
2
3
4
5
6
7
8
9
0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
Distance (inches)
Normalized Output Power
10 mA
20 mA
30 mA
40 mA
50 mA
60 mA
80 mA
100 mA
Normal ized at 0.6" and 50 m A
Forward Current
Beam Angle
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
110%
-80 -70 -60 -50 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80
Degrees
Normalize d Radianc e
