1P28

PHOTOMULTIPLIER TUBE 1P28 FEATURES 28mm (1-1/8 Inch) Diameter Side-on 185 to 650nm Spectral Response For UV to Visible Range Photocathode GENERAL Parameter Description/Value 185 to 650 Spectral Response 340 Wavelength of Maximum Response Sb-Cs PhotoMaterial 8 × 24 cathode Minimum Useful Size UV glass Window Material Circular-cage Structure Dynode 9 Number of Stages Direct 4 Anode to Last Dynode Interelectrode 6 Capacitances Anode to All Other Electrodes JEDEC No. B11-88 Base E678-11A Suitable Socket Unit nm nm — mm — — — pF pF — — Figure 1: Typical Spectral Response TPMSB0143EA 100 CATHODE RADIANT SENSITIVITY CATHODE RADIANT SENSITIVITY (mA/W) QUANTUM EFFICIENCY (%) 10 QUANTUM EFFICIENCY 1 0.1 0.01 200 400 600 800 WAVELENGTH (nm) Subject to local technical requirements and regulations, availability of products included in this promotional material may vary. Please consult with our sales office. Information furnished by HAMAMATS U 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. © 1999 Hamamatsu Photonics K.K. PHOTOMULTIPLIER TUBE 1P28 MAXIMUM RATINGS (Absolute Maximum Values) Parameter Between Anode and Cathode Supply Between Anode Voltage and Last Dynode Average Anode Current Ambient Temperature Value 1250 250 0.1 -80 to +50 Unit Vdc Vdc 107 108 Figure 2: Typical Gain Characteristi...