PT491 datasheet(2/4 Pages) SHARP

Part #	PT491

Description	Intermediate Acceptance High Sensitivity Phototransistor

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Manufacturer	SHARP [Sharp Corporation]

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PT491/PT491F/PT493/PT493F

s Electro-optical Characteristics

Parameter

Symbol

Conditions

MIN.

TYP.

MAX.

Unit

*2Collector current

PT491/PT493

IC

VCE = 2V

0.3

0.6

1.3

mA

PT491F/PT493F

EV

0.2

0.4

0.8

mA

Collector dark current

ICEO

VCE = 10V, E e =0

-

10-6

A

*2Collector-emitter saturation voltage

V CE(sat)

IC = 0.8mA,

-

1.0

V

Ee = 1mW/cm2

λp

-

800

-

nm

-

860

-

nm

t r

VCE = 2V, I C = 5mA

-

µs

tf

RL = 100

Ω

∆θ

-

Half intensity angle

Peak sensitivity

PT491/PT493

wavelength

PT491F/PT493F

Response time

Rise time

Fall time

80

70

400

350

±40

-

( Ta = 25˚C)

*2 E e , E V : Illuminance, irradiance by CIE standard light source A ( tungsten lamp)

- 25

0

20

10

30

50

40

60

80

70

25

0

50

100

75

85

75

50

- 25

50

0

25

75

100

175

150

125

100

Ambient temperature T a (˚C)

- 25

0

25

50

75

100

5

10 -10

10 -9

5

10 -8

5

10 -7

5

10 -6

5

10 -5

5

10 -4

10 -11

5

Irradiance E e ( mW/cm

2)

10-1

10

25

1

2

5

20

50

PT491

PT493

PT491F

PT493F

Fig. 1 Collector Power Dissipation vs.

Ambient Temperature

Fig. 2 Collector Dark Current vs.

Ambient Temperature

Fig. 4 Collector Current vs. Irradiance

VCE

= 10V

Ambient temperature Ta (˚C)

VCE =2V

EV = 21x

T a = 25˚C

VCE =2V

Fig. 3 Relative Collector Current vs.

Ambient Temperature

= 2lx

˚

1

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