R550

PHOTOMULTIPLIER TUBE R550 300 to 850 nm Response (S-20) 51 mm (2 Inch) Diameter, 10-stage, Head-On Type GENERAL Parameter Spectral Response Wavelength of Maximum Response Material Photocathode Minimum Effective Area Window Material Structure Dynode Number of Stages Base Suitable Socket Description/Value 300 to 850 420 Multialkali 46 Borosilicate glass Box and Grid 10 14-pin base JEDEC No. B14-38 E678-14A (supplied) Unit nm nm — mm dia. — — — — — 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 0.3 -30 to +50 Unit Vdc Vdc mA °C CHARACTERISTICS (at 25°C) Cathode Sensitivity Anode Sensitivity Parameter Luminous (2856K) Radiant at 420nm Red/White Ratio (R-68) Luminous (2856K) Radiant at 420nm Min. 100 — — 20 — — — — — Typ. 150 64 0.2 100 4.3 × 104 6.7 × 105 10 9.0 70 Max. — — — — — — 30 — — Unit µA/lm mA/W — A/lm A/W — nA ns ns Gain Anode Dark Current (after 30min. storage in darkness) Anode Pulse Rise Time Time Response Electron Transit Time NOTE: Anode characteristics are measured with the voltage distribution ratio shown below. VOLTAGE DISTRIBUTION RATIO AND SUPPLY VOLTAGE Electrodes K G Dy1 Dy2 Dy3 Dy4 Dy5 Dy6 Dy7 Dy8 Dy9 Dy10 Ratio 1 1 1 1 1 1 1 1 1 1 1 1 Supply Voltage: 1000Vdc, K: Cathode, Dy: Dynode, P: Anode P Subject to local technical requirements and regulations, availability of products included in this promotional material may var...