PHOTOMULTlPLlER TUBE
For visible to near IR low light detections
Extended red multialkali photocathode
51mm(2 Inch) diameter, 12stage, Headon type
GENERAL
MAXIMUM RATINGS (Absolute Maximum Values)
Parameter
Parameter
Value
Description/Value
Unit
Spectral Response
300 to 900
nm
Wavelength of Maximum Response
600
nm
pF
pF
Photocathode
MateriaI
Extended red multialkali
Structure
Number of Stages
Anode to Last Dynode
Anode to All Other Electrodes
Minimum Effective Area
46
mm dia.
Window Material
Borosilicate glass
Dynode
Direct Interelectrode
Capacitances
Base
SuitabIe Socket
Supply Voltage
Between Anode and Cathode
Between Anode and Last Dynode
2700
Ambient Temperature
-80 to +50
500
Unit
Vdc
Vdc
Avarage Anode Current
0.2
mA
Linear focused
12
2.5
21pin glass base
2
E67821A(supplied)
R2257
CHARACTERISTlCS (at 25 )
Parameter
Max.
Typ.
Min.
Cathode
Sensitivity
Gain
Dark Current (after 30min. storage in darkness)
Radiant at 600nm
Red/White Ratio (R68 filter)
A/W
Anode Pulse Rise Time
2.6
ns
nA
Electron Transit Time
230
50
0.35
100
140
15
Time
Response
Electrodes
K
Dy1
G
Dy2
Dy3
Dy4
Dy5
Dy6
Dy7
Dy8
Dy9
Dy10 Dy11
Dy12
P
Ratio
0
4
1
1.4
1
1
1
1
1
1
1
1
1
1
Anode characteristics are measured with the voItage distribution ratio shown below.
SuppIy Voltage : 1500Vdc, K : Cathode, Dy : Dynode, G : Grid, P : Anode
Shield is connected to Dy5.
NOTE:
Anode
Sensitivity
48
30
100
Unit
mA/W
A/lm
A/lm
VOLTAGE DlSTRlBUTlON RATlO AND SUPPLY VOLTAGE
ns
4 . 3
1 0
5
2 . 2
1 0
4
Luminous(2856K)
Radiant at 600nm
Luminous(2856K)
lnformation furnished by HA MAM ATS U is believed to be reliabIe. However, no responsibility is assumed for possibIe inaccuracies or commission. Specifications are
subjected to change without notice. No patent right are granted to any of the circuits described herein.
1997 Hamamatsu Photonics K.K.
Subject to local technical requirements and regulations, availability of products included in this promotional material may var y. Please consult with our sales office.
PHOTOMULTlPLlER TUBE R2257
Figure 1: Typical Spectral Response
Figure 2:Typical Gain Characteristics
Figure 3: Dimensional Outline and Basing Diagram (Unit : mm)
BOTTOM VIEW
(BASING DIAGRAM)
Socket
(E678 21A)
TPMH1141E02
MAY 1997
TPMHB0341EA
200
300
400
500
600
700
800
900
1000
WAVELENGTH (nm)
CATHODE RADIANT SENSITIVITY (mA/W)
QUANTUM EFFICIENCY (%)
10-
2
10-
1
10
0
10
2
10
1
TPMHB0355EB
500
3000
1500
1000
700
SUPPLY VOLTAGE (V)
GAIN
102
10
8
10
7
10
6
10
5
10
3
10
4
2000 2500
TPMHA0359EA
1
2
3
4
5
6
7
9
8
11 12
13
14
15
16
17
18
19
20
21
DY1
DY3
DY5
DY2
P
DY9
DY11
DY12
IC
SH IC DY10
DY8
DY6
DY4
DY7
G
IC
IC
IC
K
10
FACEPLATE
52 1
46MIN.
PHOTO-
CATHODE
21 PIN BASE
13MAX.
TACCA0011EA
R5
56.8
19
51
5
4
13
6
126 2
HAMAMATSU PHOTONICS K.K., Electoron 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, 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 Limted: Lough Point, 2 Gladbeck Way, Windmill Hill, Enfield, Middlesex EN2 7JA, United Kingdom, Telephone: (44)181-367-3560, Fax: (44)181-367-6384
North Europe: Hamamatsu Photonics Norden AB: Frgatan 7, S-164-40 Kista Sweden, Telephone: (46)8-703-29-50, Fax: (46)8-750-58-95
Italy: Hamamatsu Photonics Italia: S.R.L.: Via Della Moia, 1/E, 20020 Arese, (Milano), Italy, Telephone: (39)2-935 81 733, Fax: (39)2-935 81 741
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