© TT electronics plc

General Note

TT Electronics reserves the right to make changes in product specification without

notice or liability. All information is subject to TT Electronics’ own data and is

considered accurate at time of going to print.

Plastic Infrared Emitting Diode

OP240A & OP240B

OP245A & OP245B

Obsolete (OP240C & OP240D)

TT Electronics | OPTEK Technology

2900 E. Plano Pkwy, Plano, TX 75074 | Ph: +1 972 323 2200

www.ttelectronics.com | sensors@ttelectronics.com

Rev C 05/2022

Page 4

Performance

OP240, OP245 (A, B)

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 Current (mA)

-65°C

-40°C

-20°C

+0°C

+20°C

+40°C

+60°C

+80°C

+100°C

+125°C

Optical Power vs IF 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 IF (mA)

-65°C

-40°C

-20°C

+0°C

+20°C

+40°C

+60°C

+80°C

+100°C

+125°C

Normalized at 20 mA and 20o C

Distance vs Output Power 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)

10 mA

20 mA

30 mA

40 mA

50 mA

60 mA

80 mA

100 mA

Normalized at 0.6" and 50 mA

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