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PHOTOMULTlPLlER TUBE
R2257
For visible to near IR low light detections Extended red multialkali photocathode 51mm(2 Inch) diameter, 12–stage, Head–on type
GENERAL
Parameter Spectral Response Wavelength of Maximum Response MateriaI Photocathode Minimum Effective Area Window Material Structure Dynode Number of Stages Anode to Last Dynode Direct Interelectrode Capacitances Anode to All Other Electrodes Base SuitabIe Socket Description/Value 300 to 900 600 Extended red multialkali 46 Borosilicate glass Linear focused 12 2 2.5 21–pin glass base E678–21A(supplied) Unit nm nm mm dia.
pF pF
MAXIMUM RATINGS (Absolute Maximum Values)
Parameter Between Anode and Cathode Supply Voltage Between Anode and Last Dynode Avarage Anode Current Ambient Temperature Value 2700 500 0.
R2257 Datasheet
