TSSP930..

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Vishay Semiconductors

Rev. 1.4, 30-Jul-2021

4

Document Number: 82866

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Fig. 7 - Relative Spectral Sensitivity vs. Wavelength

Fig. 8 - Directivity

Fig. 9 - Sensitivity vs. Supply Voltage

The typical application of these devices is a reflective or

beam break sensor with active low “detect” or “no detect”

information contained in its output. The TSSP930.. is also

suitable for fast (~ 15 ms) proximity sensor applications for

ranges between 10 cm and 2 m, if a burst pattern with

variable intensity is used.

Example for a sensor hardware:

There should be no common window in front of the emitter

and detector in order to avoid crosstalk via guided light

through the window.

10

100

1000

10000

0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1.0

750

850

950

1050

1150

Axis Title

λ - Wavelength (nm)

Axis Title

d

rel. - Relative Transmission Distance

1.0

0.9

0.7

0.8

30°

50°

40°

80°

0.6

0.4

0.2

00.4

0.2

0.6

20°

10°

0°

60°

70°

10

100

1000

10000

0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1.0

1.01.5

2.02.5

3.03.5

4.0

Axis Title

V

S - Supply Voltage (V)

IR emitter

IR detector

Separation to avoid

crosstalk by stray light inside

the housing