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

04/2012

Page 4 of 5

Plastic Infrared Emitting Diode

OP140, OP145 Series

OP140, OP145 (A, B, C, D)

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

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

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

-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 20