www.vishay.com

4

Document Number 82249

Rev. 1.1, 31-Jan-05

TSOP21..MQ1

Vishay Semiconductors

Figure 7. Sensitivity vs. Supply Voltage Disturbances

Figure 8. Sensitivity vs. Electric Field Disturbances

Figure 9. Max. Envelope Duty Cycle vs. Burstlength

0.0

0.5

1.0

1.5

2.0

0.1

1.0

10.0

100.0

1000.0

16912

f = 10 kHz

f = 1 kHz

f = 100 Hz

0.0

0.4

0.8

1.2

1.6

0.0

0.4

0.8

1.2

2.0

E – Field Strength of Disturbance ( kV/m )

2.0

94 8147

1.6

0.0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1.0

0

20

40

60

80

100

120

Burst Length ( number of cycles / burst )

16914

Figure 10. Sensitivity vs. Ambient Temperature

Figure 11. Relative Spectral Sensitivity vs. Wavelength

Figure 12. Directivity

0.0

0.1

0.2

0.3

0.4

0.5

0.6

–30 –15

0

1530

45607590

16918

Sensitivity in dark ambient

0.0

0.2

0.4

0.6

0.8

1.0

1.2

750

850

950

1050

1150

λ - Wavelength ( nm )

16919

96 12223p2

0.4

0.2

0

0.2

0.4

0.6

0.6

0.9

0

30

10

20

40

50

60

70

80

1.0

0.8

0.7