PSD One-dimensional PSD S8543 Long, narrow active area and surface mountable package S8543 is a one-dimensional PSD with a long, narrow active area sealed in a surface mountable chip carrier package. The active area of 0.7 × 24 mm delivers excellent position detection characteristics. Hamamatsu also provides L5586 infrared LED compatible with S8543. Features Applications l Long, narrow active area: 0.7 × 24 mm l Chip carrier package for surface mount (t=1.36 mm) l Excellent position detection characteristic and resolution l Position detection of optical pickup head l Distance measurement l Displacement measurement l Position detection, etc. ■ Absolute maximum ratings (Ta=25 °C) Parameter Reverse voltage Operating temperature Storage temperature Symbol VR Max. Topr Tstg Value 7 -10 to +75 -20 to +80 Unit V °C °C ■ Electrical and optical characteristics (Ta=25 °C) Parameter Spectral response range Peak sensitivity wavelength Photo sensitivity Dark current Symbol λ λp S ID Condition Min. - Typ. 320 to 1100 960 0.58 1 Max. 15 Unit nm nm A/W nA λ=λp VR=5 V RL=1 kΩ, VR=5 V Rise time tr 20 50 µs λ=780 nm, 10 to 90 % Terminal capacitance Ct VR=5 V, f=10 kHz 65 130 pF Interelectrode resistance Rie Vb=0.1 V 100 140 180 kΩ λ=900 nm, VR=5 V Position detection error E ±50 ±250 µm φ200 µm *1 Position resolution Io=1 µA, B=1 kHz *2 0.6 µm ∆R 3 Saturation photocurrent * Ist VR=5 V 200 µA *1: Within ±75 % from center to end of active area *2: This is the minimum detectable light spot displacement. The detection limit is indicated by the distance on the photosensitive surface. The numerical value of the resolution of a position sensor using a PSD is proportional to both the length of the PSD and the noise of the measuring system (resolution deteriorates) and inversely proportional to the photocurrent (incident energy) of the PSD (resolution improves). The resolution value listed in this data sheet was calculated under the following conditions. • Frequency bandwidth: 1 kHz • Photocurrent: 1 µA • Equivalent input noise voltage of circuit: 1 µV (1 kHz) • Interelectrode resistance: Typical value (refer to the specification table) *3: This is the upper limit of photocurrent linearity. The upper limit is defined as a point where the photocurrent output deviates 10 % from the linearity. 1 One-dimensional PSD ■ Spectral response S8543 ■ Dark current vs. reverse voltage (Typ. Ta=25 ˚C) 0.7 (Typ. Ta=25 ˚C) 10 nA 1 nA 0.5 DARK CURRENT PHOTO SENSITIVITY (A/W) 0.6 0.4 0.3 0.2 100 pA 10 pA 0.1 0 200 400 600 800 1 pA 0.01 1000 WAVELENGTH (nm) 0.1 1 10 100 REVERSE VOLTAGE (V) KPSDB0019EA KPSDB0018EA ■ Position detection error ■ Terminal capacitance vs. reverse voltage (Typ. Ta=25 ˚C, f=10 kHz) +240 POSITION DETECTION ERROR (µm) TERMINAL CAPACITANCE 10 nF 1 nF 100 pF 10 pF 1 pF 0.01 0.1 1 10 (Typ. Ta=25 ˚C, λ=900 nm, spot light size: 200 µm) 0 -240 -12 -10 -8 -6 100 REVERSE VOLTAGE (V) -4 -2 0 +2 +4 +6 +8 +10 +12 POSITION ON PSD (mm) KPSDB0020EA KPSDB0021EA ■ Dimensional outline (unit: mm) 36.7 ± 0.35 (1.0) 30.5 ± 0.3 +0.2 1.0-0 (2.0) 24.0 2.54 0.7 Y X 4.0 ± 0.2 (R0.25) 2.4 ± 0.25 28.5 ± 0.3 ACTIVE AREA INDEX MARK 0.46 1.36 ± 0.15 +0.3 PHOTOSENSITIVE SURFACE 1.4-0 DETAILS CERAMIC (1.0) +0.30 (0.1) (0.1) (1.1) 1.4-0 ANODE (X1) CATHODE (COMMON) ANODE (X2) CATHODE (COMMON) KPSDA0058EA 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. ©2002 Hamamatsu Photonics K.K. HAMAMATSU PHOTONICS K.K., Solid State Division 1126-1 Ichino-cho, Higashi-ku, Hamamatsu City, 435-8558 Japan, Telephone: (81) 53-434-3311, Fax: (81) 53-434-5184, 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.: 19, 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 2 Cat. No. KPSD1021E01 Jan. 2002 DN