R2248

PHOTOMULTIPLIER TUBE R2248 10mm × 10mm Square Envelope, Head-On Type 8-Stage, Bialkali Photocathode GENERAL Parameter Spectral Response Wavelength of Maximum Response Material Photocathode Minimum Useful Area Window Material Structure Dynode Number of Stages Base Weight Suitable Socket Description/Value 300 to 650 420 Bialkali 8×8 Borosilicate glass Linear focused 8 11-pin glass base Approx. 4.5 E678-11N (supplied) Unit nm nm — mm — — — — g — MAXIMUM RATINGS (Absolute Maximum Values) Supply Voltage Average Anode Current Ambient Temperature Parameter Between Anode and Cathode Between Anode and Last Dynode Value 1500 250 0.03 -80 to +50 Unit Vdc Vdc mA °C CHARACTERISTICS (at 25°C) Cathode Sensitivity Parameter Luminous (2856K) Radiant at 420nm Blue (CS 5-58 filter) Luminous (2856K) Min. 60 — — 30 — — — Typ. 95 76 9.5 100 1.1 × 106 1 0.9 9 Max. — — — — — 50 — — Unit µA/lm mA/W µA/lm-b A/lm — nA ns ns Anode Sensitivity Gain Anode Dark Current (after 30min. storage in darkness) Anode Pulse Rise Time Time Response Electron Transit Time VOLTAGE DISTRIBUTION RATIO AND SUPPLY VOLTAGE Electrodes K Dy1 Dy2 Dy3 Dy4 Dy5 Dy6 Dy7 Dy8 P Ratio 2 2 1 1 1 1 1 1 1 Supply Voltage: 1250Vdc, K: Cathode, Dy: Dynode, P: Anode 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...