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Электронный компонент: P2478-01

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CdS photoconductive cells utilize photoconductive effects in semiconductors that decrease their resistance when illuminated by light.
These sensors are non-polar resistive elements with spectral response characteristics close to the human eye (luminous efficiency), thus making
their operating circuits simple and small.
Dual-element sensors can be used to compare the signal from each element or perform signal processing by using a separation circuit.
Features
l Thin substrate
l Low price
Applications
l Sensor for various control device
V I S I B L E D E T E C T O R
CdS photoconductive cell
Low cost dual-element sensor with standard size
Resin coating dual type
s
Absolute maximum ratings / Characteristics (Typ. Ta=25 C, unless otherwise noted, per 1 element)
Absolute maximum ratings
Characteristics *
1
Resistance *
2
Response time 10 lx *
5
Supply
voltage
Power
dissipation
P
Ambient
temperature
Ta
Peak
sensitivity
wavelength
p
10 lx, 2856 K
0 lx *
3
100
10
*
4
Rise time
tr
Fall time
tf
Type No.
Dimensional
outline
(Vdc)
(mW)
(C)
(nm)
Min.
(k)
Max.
(k)
Min.
(M)
100 to 10 lx
(ms)
(ms)
5R type
P1395-01
50
25
-30 to +60
550
5
15
0.1
0.60
120
250
7R type
P2405
520
45
135
20
0.90
20
P2478-01
100
50
-30 to +60
530
25
75
1
0.70
50
40
*1: All characteristics are measured after exposure to light (100 to 500 lx) for one to two hours.
*2: The light source is a standard tungsten lamp operated at a color temperature of 2856 K.
*3: Measured 10 seconds after shutting off the 10 lx light.
*4: Typical gamma characteristics (within 0.10 variations) between 100 lx to 10 lx
E
100
, E
10
: illuminance 100 lx, 10 lx
R
100
, R
10
: resistance at 100 lx and 10 lxrespectively
*5: The rise time is the time required for the sensor resistance to reach 63 % of the saturated conductance level (when fully
illuminated). The fall time is the time required for the sensor resistance to decay from the saturated conductance level to
37 %.
log (R
100
) - log (R
10
)
log (E
100
) - log (E
10
)
=
100
10
HAMAMATSU PHOTONICS K.K., Solid State Division
1126-1 Ichino-cho, Hamamatsu City, 435-8558 Japan, Telephone: (81) 053-434-3311, Fax: (81) 053-434-5184, http://www.hamamatsu.com
U.S.A.: Hamamatsu Corporation: 360 Foothill Road, P.O.Box 6910, Bridgewater, N.J. 08807-0910, U.S.A., Telephone: (1) 908-231-0960, Fax: (1) 908-231-1218
Germany: Hamamatsu Photonics Deutschland GmbH: Arzbergerstr. 10, D-82211 Herrsching am Ammersee, Germany, Telephone: (49) 08152-3750, Fax: (49) 08152-2658
France: Hamamatsu Photonics France S.A.R.L.: 8, Rue du Saule Trapu, Parc du Moulin de Massy, 91882 Massy Cedex, France, Telephone: 33-(1) 69 53 71 00, Fax: 33-(1) 69 53 71 10
United Kingdom: Hamamatsu Photonics UK Limited: 2 Howard Court, 10 Tewin Road, Welwyn Garden City, Hertfordshire AL7 1BW, United Kingdom, Telephone: (44) 1707-294888, Fax: (44) 1707-325777
North Europe: Hamamatsu Photonics Norden AB: Smidesvgen 12, SE-171 41 Solna, Sweden, Telephone: (46) 8-509-031-00, Fax: (46) 8-509-031-01
Italy: Hamamatsu Photonics Italia S.R.L.: Strada della Moia, 1/E, 20020 Arese, (Milano), Italy, Telephone: (39) 02-935-81-733, Fax: (39) 02-935-81-741
Information furnished by HAMAMATSU is believed to be reliable. However, no responsibility is assumed for possible inaccuracies or omissions.
Specifications are subject to change without notice. No patent rights are granted to any of the circuits described herein. 2001 Hamamatsu Photonics K.K.
CdS photoconductive cell
Resin coating dual type
Cat. No. KCDS1003E01
May. 2001 DN
1000
100
10
1
0.1
0.1
1
10
100
ILLUMINANCE (lx)
RESISTANCE (k
)
(Typ. Ta=25 C, light source: 2856 K)
P1395-01
P2478-01
P2405
(Typ. light source: 2856 K, 10 lx)
140
120
100
80
60
-30 -20
0
20
40
60
80
RELATIVE RESISTANCE (%)
AMBIENT TEMPERATURE (C)
P1395-01
P2478-01
P2405
2.5 MAX.
25 2
5.1 0.2
4.3 0.2
3.4
COMMON
ACTIVE AREA
0.45
LEAD
2.5 MAX.
27 2
7.0 0.2
5.9 0.2
5.0
COMMON
ACTIVE AREA
0.5
LEAD
2.5 MAX.
27 2
7.0 0.2
5.9 0.2
5.1
2.0
ACTIVE AREA
0.5
LEAD
s Resistance vs. illuminance
KCDSB0020EA
s Dimensional outlines (unit: mm)
KCDSA0004EA
s Resistance vs. ambient temperature
KCDSB0021EA
P1395-01
P2405
P2478-01
KCDSA0005EA
KCDSA0006EA