
HIGH VOLTAGE
POWER SUPPLY UNIT
C4900
SERIES
The C4900 series are compact PC–board mountable high voltage power supplies, especially designed for
photomultiplier tubes. The design offers better performance and improved fail–safe protection.
The C4900 and–01 output negative polarity and the C4900–50 and –51 output positive polarity high voltages.
SPECIFICATIONS
FEATURES
Compact and Lightweight
High stability
Low Power Consumption
Fast Response
Wide Variable Output Range
Ample Protective and Fail
–
safe Functions
Parameter
Unit
V
C4900
+15
±
1
14
90
C4900-01
+12
±
0.5
15
95
C4900-50
+15
±
1
14
90
C4900-51
+12
±
0.5
15
95
0.6
0.5
0.6
0.5
V
mA (Typ.)
% (Typ.)
mA (Max.)
Input Voltage Range
with no load
with full load
Input Current
a
Output Current
b
Line Regulation against
±
1 V or 0.5 V Change
b
Load Regulation against
0 % to 100 % Load Change
a
Ripple / Noise (p-p)
b
±
0.01
% (Typ.)
±
0.01
%/
°
C (Typ.)
°
C
±
0.01
0 to +50
-20 to +70
mm
°
C
46
×
24
×
12
31
g
% (Typ.)
V (Typ.)
0.007
k
(Typ.)
80
ms (Typ.)
50
By external controlling voltage (0 V to +5 V) or external potentiometer (50 k
±
2.5 k
)
Units protected against reversed power input, reversed/excessive controlling
voltage input, continuous overloading/short circuit in output
+5.13 (with 50 k
external potetiometer)
(Controlling voltage
×
250)
±
0.5 %
V (Typ.)
Variable Output Range
Specification Guaranteed
Output Voltage Range
0 to
–
1250
0 to +1250
V
–
200 to
–
1250
+200 to +1250
Output Voltage Controlling Modes
Controlling Voltage Input Impedance
Reference Voltage Output
Output Voltage Setting (Absolute value)
Output Voltage Rise Time (0 % 99 %)
b
Temperature Coefficient
b
Operating Temperature Range
b
Storage Temperature Range
Dimensions (W
×
H
×
D)
Weight
Protective Functions
a
At Maximum Output Voltage.
b
At Maximum Output Voltage and Current.
PATENT
Information furnished by HAMAMATSU 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. 2001 Hamamatsu Photonics K.K
Subject to local technical requirements and regulations, availability of products included in this promotional material may vary. Please consult with our sales office.