R3991 Datasheet

R3991 PHOTOMULTIPLIER TUBE

Value 300 to 650 375 High temp. bialkali 15 Borosilicate glass Circular-cage 10 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 1800 250 0.02 -80 to .

Features

Time 1000nA at 175°C NOTE: Anode characteristics are measured with the voltage distribution ratio shown below. * VOLTAGE DISTRIBUTION RATIO AND SUPPLY VOLTAGE Electrodes K Dy1 Dy2 Dy3 Dy4 Dy5 Dy6 Dy7 Dy8 Dy9 Dy10 P Ratio 3 1 1 1 1 1 1 1 1 1 1 Supply Voltage: 1500Vdc, K: Cathode, Dy: Dynode, P: Anode ENVIRONMENTAL TESTING Shock ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ 1000g's, 0.5ms, 3 impact shocks per direction (6 directions) Vibration ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ 30g's, 50 to 2000Hz, 1 oct per minute, 3 sweeps per axis (3 axes) Subject to local technical requirements and regulations.