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PHOTOMULTIPLIER TUBE
R4998
Fast Time Response, 25 mm (1 Inch) Diameter, 10-stage, Bialkali Photocathode, 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 650 420 Bialkali 20 Borosilicate glass Linear-focused 10 12-pin base JEDEC No. B12-43 E678-12A (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 2500 250 0.1 -30 to +50 Unit Vdc Vdc mA C
CHARACTERISTICS (at 25C)
Cathode Sensitivity Anode Sensitivity Parameter Luminous (2856K) Radiant at 420nm Blue (CS-5-58 filter) Luminous (2856K) Radiant at 420nm Min. 60 -- -- 100 -- -- -- -- -- Typ. 70 72 9.0 400 4.1 x 105 5.7 x 106 100 0.7 10 Max. -- -- -- -- -- -- 800 -- -- Unit A/lm mA/W A/lm-b 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 P Ratio 1.3 4.8 1.2 1.8 1 1 1 1 1 1.5 3 2.5 Supply Voltage: 2250Vdc, K: Cathode, Dy: Dynode, P: Anode
Assembled type (H6533) is recommended.
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. (c) 1999 Hamamatsu Photonics K.K.
PHOTOMULTIPLIER TUBE R4998
Figure 1: Typical Spectral Response
TPMHB0518EA
Figure 2: Typical Gain Characteristics
108
TPMHB0612EA
100 CATHODE RADIANT SENSITIVITY
CATHODE RADIANT SENSITIVITY (mA/W) QUANTUM EFFICIENCY (%)
107 10 106 QUANTUM EFFICIENCY 1
GAIN
105
104 0.1 103
0.01
200
400
600
800
1000
102 500
1000
1500
2000 2500 3000
WAVELENGTH (nm)
SUPPLY VOLTAGE (V)
Figure 3: Dimensional Outline and Basing Diagram (Unit: mm)
26 1 FACEPLATE 20 MIN.
A TEMPORARY BASE REMOVED
Socket (E678-12A)
47 40 17
PHOTOCATHODE DY9 5 71 1 DY7 4 (Acc) DY5
P
DY10 12 DY8 13 14 DY6 15 DY4 16 DY2 17 G
3 2 1 18 DY1 K
SMA CONNECTOR A
13 MAX.
HA COATING
DY3
B BOTTOM VIEW
2- 3.2
52 MIN.
DY9 DY7 (Acc) 4 DY5 3 2 5
DY10 DY8 P 67 DY6 8 9 DY4 10 11 1 DY1 12 K
TPMHA0093EC
34
DY2
8
B 37.3 0.5
DY3
G
HOMEPAGE URL http://www.hamamatsu.com HAMAMATSU PHOTONICS K.K., Electron Tube Center 314-5, Shimokanzo, Toyooka-village, Iwata-gun, Shizuoka-ken, 438-0193, Japan, Telephone: (81)539/62-5248, Fax: (81)539/62-2205
U.S.A.: Hamamatsu Corporation: 360 Foothill Road, P. O. Box 6910, Bridgewater. N.J. 08807-0910, U.S.A., Telephone: (1)908-231-0960, Fax: (1)908-231-1218 Germany: Hamamatsu Photonics Deutschland GmbH: Arzbergerstr. 10, D-82211 Herrsching am Ammersee, Germany, Telephone: (49)8152-375-0, Fax: (49)8152-2658 France: Hamamatsu Photonics France S.A.R.L.: 8, Rue du Saule Trapu, Parc du Moulin de Massy, 91882 Massy Cedex, France, Telephone: (33)1 69 53 71 00, Fax: (33)1 69 53 71 10 United Kingdom: Hamamatsu Photonics UK Limited: Lough Point, 2 Gladbeck Way, Windmill Hill, Enfield, Middlesex EN2 7JA, United Kingdom, Telephone: 44(20)8-367-3560, Fax: 44(20)8-367-6384 North Europe: Hamamatsu Photonics Norden AB: Smidesvagen 12, SE-171-41 SOLNA, Sweden, Telephone: (46)8-509-031-00, Fax: (46)8-509-031-01 Italy: Hamamatsu Photonics Italia: S.R.L.: Strada della Moia, 1/E, 20020 Arese, (Milano), Italy, Telephone: (39)02-935 81 733, Fax: (39)02-935 81 741
15
TACCA0009EB
12 PIN BASE JEDEC No. B12-43
5
TPMH1261E02 DEC. 1999

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