VISIBLE DETECTOR CdS photoconductive cell Resin coating type (7R,10R type) Standard type designed to withstand high voltage and high power 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 Applications l Small size, thin substrate l Low price l Suitable for high voltage and high power application l Auto dimmer for digital display, CRT and room illumination l Automatic light on/off sensor l Sensor for electronic toy and teaching aid material ■ Absolute maximum ratings / Characteristics (Typ. Ta=25 °C, unless otherwise noted) Characteristics *1 Resistance *2 Absolute maximum ratings Type No. 7R type P380-7R P722-7R P1195 P1202-12 P1202-16 10R type P722-10R P1096-06 Peak Power Ambient sensitivity Supply Dimensional dissipation temperature wavelength 10 lx, 2856 K voltage outline P Ta λp Min. Max. (Vdc) (mW) (°C) (nm) (kΩ) (kΩ) ➀ ➁ 200 100 200 100 200 50 150 100 150 100 200 100 300 100 -30 to +50 -30 to +60 -30 to +70 -30 to +60 -30 to +60 0 lx *3 4 γ 100 10 * Response time 10 lx *5 Rise time Fall time tr tf Min. (MΩ) 100 to 10 lx (ms) (ms) 620 560 550 560 550 4.4 2.5 50 3.5 23 13 7.5 150 14 67 20 0.5 20 0.5 20 0.85 0.70 0.90 0.70 0.90 35 50 40 50 30 20 40 10 40 10 560 550 12 2.8 36 8.4 0.5 0.70 0.75 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 removal of light of 10 lx. *4: Typical gamma characteristics (within ±0.10 variations) between 100 lx to 10 lx γ 100 10 = log (R100) - log (R10) log (E100) - log (E10) E100, E10: illuminance 100 lx, 10 lx R100, R10: 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 (resistance when fully illuminated). The fall time is the time required for the sensor resistance to decay from the saturated conductance level to 37 %. CdS photoconductive cell Resin coating type (7R,10R type) ■ Resistance vs. illuminance ■ Resistance vs. ambient temperature P1202-16 P722-10R RESISTANCE (kΩ) 100 P380-7R P1202-12 P722-7R 1 P1096-06 0.1 0.1 1 10 140 RELATIVE RESISTANCE (%) P1195 10 (Typ. light source: 2856 K, 10 lx) (Typ. Ta=25 ˚C, light source: 2856 K) 1000 100 P380-7R 120 P1202-16 P1195 100 P722-7R P1202-12 P722-10R P1096-06 80 60 –30 –20 0 20 40 60 80 AMBIENT TEMPERATURE (˚C) ILLUMINANCE (lx) KCDSB0018EA KCDSB0019EA ■ Dimensional outlines (unit: mm) ➀ 7R type ➁ 10R type ACTIVE AREA 7.6 27 ± 2 2.5 MAX. 10.1 ± 0.2 27 ± 2 5.0 2.5 MAX. 7.0 ± 0.2 8.5 ± 0.2 5.9 ± 0.2 ACTIVE AREA 0.5 LEAD 0.5 LEAD KCDSA0002EA KCDSA0003EA 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. 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: Smidesvägen 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 Cat. No. KCDS1002E01 Apr. 2001 DN