HAMAMATSU P1201-04, P1241-05, P1241-06, P687-02, P1241-04 Datasheet

VISIBLE DETECTOR

CdS photoconductive cell

Resin coating type (5R type)

Standard type designed for general-purpose, wide application

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.

Features

l

Small size, thin package

l

Low price

l

Wide range of sensor lineup

Applications

l

Programed electronic shutter and stroboscope light control
for compact camera

l

Auto dimmer for digital display, CRT and room illumination

l

Sensor for automatic light on/off

l

Sensor for electronic toy and teaching aid material

■ Absolute maximum ratings / Characteristics (Typ. Ta=25 °C, unless otherwise noted)

Absolute maximum ratings Characteristics *

Supply

log (R

log (E

voltage

(Vdc) (mW) (°C) (nm)

100

50 -30 to +60 560

100

100

) - log (R10)

100

) - log (E10)

Type No.

P687-02 30 -30 to [phone] 5.0 0.70 60 25
P1201-04 200
P1201-06
P1241-04 3 9 0.2 0.70
P1241-05 8 24 0.5 0.70
P1241-06
P1444 10 50 5.0
P1445

*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

100

γ =

10

E

, E: illuminance 100 lx, 10 lx



R

, R: resistance at 100 lx and 10 lx respectively



*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 %.

Power

dissipation

P

50 -30 to +60 540 50

30

Ambient

temperature

Ta

-30 to +50 620

Peak

sensitivity

wavelength

lp

Cell resistance *

10 lx, 2856 K 0 lx *

Min.
(kW)

5 20 0.5 0.75

48 140 20

Max.

(kW)

100

Min.

(MW)

20 0.90 40 30



Response time 10

"

g

*





!

100 to 10

0.85 40 10

Rise timetrFall time

lx

lx

tf

(ms) (ms)

50 40

*

#

1

CdS photoconductive cell

■■

■

■■

Cell resistance vs. illuminance

10000

(Typ. Ta=25 ˚C, light source: 2856 K)

Resin coating type (5R type)

■■

■

■■

Resistance temperature characteristics

140

(Typ. light source: 2856 K, 10 lx)

1000

100

10

CELL RESISTANCE (kΩ)

P687-02

P1241-06

P1241-05

1

0.1 1 10 100

ILLUMINANCE (lx)

■■

■

■■

Dimensional outline (unit: mm)

ACTIVE AREA

P1445

P1241-04

4.3 ± 0.2

P1201-04

P1201-06

P1444

KCDSB0023EA

P1444, P1445

P1241-04/-05/-06

120

100

80

P687-02

P1201-04/-06

CHANGE IN ILLUMINATED RESISTANCE (%)

60

-30 -20 0 20 40 60 80

AMBIENT TEMPERATURE (˚C)

KCDSB0024EA

5.1 ± 0.2

3.4

2.5 MAX.

27 ± 2

0.5
LEAD

KCDSA0001EA

Information furnished by HAMAMATSU is believed to be reliable. However, no responsibility is assumed for possible inaccuracies or omissions.

HAMAMATSU PHOTONICS K.K., Solid State Division
1126-1 Ichino-cho, Hamamatsu City, 435-8558 Japan, Telephone: [phone], Fax: [phone], 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: [phone], Fax: [phone]
Germany: Hamamatsu Photonics Deutschland GmbH: Arzbergerstr. 10, D-82211 Herrsching am Ammersee, Germany, Telephone: [phone], Fax: [phone]
France: Hamamatsu Photonics France S.A.R.L.: 8, Rue du Saule Trapu, Parc du Moulin de Massy, 91882 Massy Cedex, France, Telephone: [phone], Fax: [phone]
United Kingdom: Hamamatsu Photonics UK Limited: 2 Howard Court, 10 Tewin Road, Welwyn Garden City, Hertfordshire AL7 1BW, United Kingdom, Telephone: [phone], Fax: [phone]
North Europe: Hamamatsu Photonics Norden AB: Smidesvägen 12, SE-171 41 Solna, Sweden, Telephone: [phone], Fax: [phone]
Italy: Hamamatsu Photonics Italia S.R.L.: Strada della Moia, 1/E, 20020 Arese, (Milano), Italy, Telephone: [phone], Fax: [phone]

Specifications are subject to change without notice. No patent rights are granted to any of the circuits described herein. ©2001 Hamamatsu Photonics K.K.

2

Cat. No. KCDS1005E01
Oct. 2001 DN