Si photodiodes S2281 series Si photodiodes with BNC connector The S2281 series is Si photodiodes sealed in a metal package with a BNC connector. This configuration allows easy connection to Hamamatsu C9329 photosensor amplifier (The S2281-01 has a large terminal capacitance which may cause a gain peaking to occur when the C9329 is used with the gain set to the “M” range.). Two different spectral response characteristics are provided and the large photosensitive area makes the S2281 series well suited for optical power meters. A variant type S9219 with a visual compensation filter is also available. Hamamatsu also provides the E2573 BNC-BNC coaxial cable (length: 1 m) as an option. Features Applications Metal package with BNC connector Analytical instruments High sensitivity Optical measurement equipment High reliability Structure Parameter Photosensitive area size Photosensitive area Package Window material S2281 ϕ11.3 100 S2281-01 ϕ11.3 100 Metal package with BNC connector Quartz glass S2281-04 ϕ7.98 50 Unit mm mm2 - S2281 S2281-01 5 -10 to +60 -20 to +70 S2281-04 Unit V °C °C Absolute maximum ratings Parameter Reverse voltage Operating temperature Storage temperature Symbol VR max Topr Tstg Note: Exceeding the absolute maximum ratings even momentarily may cause a drop in product quality. Always be sure to use the product within the absolute maximum ratings. Electrical and optical characteristics (Ta=25 °C, unless otherwise noted) Parameter Symbol Spectral response range Peak sensitivity wavelength λ λp Photosensitivity Short circuit current Dark current Shunt resistance Rise time Terminal capacitance Noise equivalent power Condition λ=200 nm λ=λp Isc 100 lx ID VR=10 mV Rsh VR=10 mV VR=0 V tr RL=1 kΩ VR=0 V Ct f=10 kHz NEP VR=0 V, λ=λp S Min. 0.10 64 20 S2281 Typ. 190 to 1100 960 0.12 0.5 80 50 200 Max. 500 - Min. 0.10 32 30 S2281-01 Typ. Max. 190 to 1000 720 0.12 0.36 40 6 300 1700 - - 3 - - 7 - - 3 - μs - 1300 - - 3200 - - 1300 - pF - 1.8 × 10-14 - - 8.6 × 10-15 - - 1.8 × 10-14 - W/Hz1/2 www.hamamatsu.com Min. 0.10 32 20 S2281-04 Typ. Max. 190 to 1100 960 0.12 0.5 40 50 500 200 - Unit nm nm A/W μA pA MΩ 1 Si photodiodes S2281 series Spectral response Dark current vs. reverse voltage (Typ. Ta=25 °C) (Typ. Ta =25 °C) 0.7 10 nA 0.6 S2281/-04 S2281/-04 0.5 Dark current Photosensitivity (A/W) 1 nA 0.4 0.3 100 pA S2281-01 10 pA 0.2 S2281-01 1 pA 0.1 190 400 600 800 100 fA 0.01 1000 Wavelength (nm) 0.1 1 10 Reverse voltage (V) KSPDB0090EA KSPDB0180EA Terminal capacitance vs. reverse voltage 10 nF (Typ. Ta=25 °C, f=1 MHz) Terminal capacitance S2281-01 S2281/-04 1 nF 100 pF 10 pF 0.1 1 10 Reverse voltage (V) KSPDB0181EB 2 Si photodiodes S2281 series Dimensional outlines (unit: mm) S2281, S2281-01 ɸ25.0 ± 0.1 10.0 ± 0.1 ɸ17.5 ± 0.1 ɸ11.3 ɸ7.98 +0 ɸ16.0 - 0.1 ɸ25.0 ± 0.1 ɸ17.5 ± 0.1 Photosensitive area (100 mm2) 5.0 ± 0.2 S2281-04 Glass window Photosensitive area (50 mm2) ( BNC: UG-625B/U Core: cathode Case: anode ) KSPDA0080EA Precautions against UV light exposure ∙ When UV light irradiation is applied, the product characteristics may degrade. Such examples include degradation of the product’s UV sensitivity and increase in dark current. This phenomenon varies depending on the irradiation level, irradiation intensity, usage time, and ambient environment and also varies depending on the product model. Before employing the product, we recommend that you check the tolerance under the ultraviolet light environment that the product will be used in. ∙ Exposure to UV light may cause the characteristics to degrade due to gas released from the resin bonding the product’s component materials. As such, we recommend that you avoid applying UV light directly on the resin and apply it on only the inside of the photosensitive area by using an aperture or the like. Related information www.hamamatsu.com/sp/ssd/doc_en.html Precautions ∙ Disclaimer ∙ Metal, ceramic, plastic package products Technical information ∙ Si photodiode/Application circuit examples Information described in this material is current as of October, 2015. Product specifications are subject to change without prior notice due to improvements or other reasons. This document has been carefully prepared and the information contained is believed to be accurate. In rare cases, however, there may be inaccuracies such as text errors. Before using these products, always contact us for the delivery specification sheet to check the latest specifications. The product warranty is valid for one year after delivery and is limited to product repair or replacement for defects discovered and reported to us within that one year period. However, even if within the warranty period we accept absolutely no liability for any loss caused by natural disasters or improper product use. Copying or reprinting the contents described in this material in whole or in part is prohibited without our prior permission. www.hamamatsu.com 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 U.S.A.: Hamamatsu Corporation: 360 Foothill Road, Bridgewater, N.J. 08807, 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) 8152-375-0, Fax: (49) 8152-265-8 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: Torshamnsgatan 35 16440 Kista, Sweden, Telephone: (46) 8-509-031-00, Fax: (46) 8-509-031-01 Italy: Hamamatsu Photonics Italia S.r.l.: Strada della Moia, 1 int. 6, 20020 Arese (Milano), Italy, Telephone: (39) 02-93581733, Fax: (39) 02-93581741 China: Hamamatsu Photonics (China) Co., Ltd.: B1201, Jiaming Center, No.27 Dongsanhuan Beilu, Chaoyang District, Beijing 100020, China, Telephone: (86) 10-6586-6006, Fax: (86) 10-6586-2866 Cat. No. KSPD1044E04 Oct. 2015 DN 3