TOSW 118115 Datasheet

TOSW 118115
www.vishay.com
Vishay Draloric
Watercooled RF Power Barrel Capacitors
for Dielectric Heating Equipment
FEATURES
These capacitors feature a high Q-factor of greater than
10 000 which makes them ideal in operating frequency
range from 0.1 MHz up to 30 MHz where high voltages and
currents are present. This capacitor type can be used as
replacement for fixed vacuum capacitors. The construction
provides the advantage of a long lifetime without vacuum
deterioration. 
The TOSW 118115 has additionally watercooling systems
on both electrodes. That provides very high power ratings
up to 1940 kvar.
APPLICATIONS
Dielectric heating equipments in industrial segment
CAPACITANCE RANGE
125 pF
QUICK REFERENCE DATA
DESCRIPTION
VALUE
Ceramic Class
1
Ceramic Dielectric
Type
Voltage (Vp)
R16 HQ
TOSW 118115
± 10 %
CERAMIC DIELECTRICS
R16 High Q (TCC + 100 ppm/K)
13 500
Min. Capacitance (pF)
125
Max. Capacitance (pF)
125
Mounting
CAPACITANCE TOLERANCE
Screw terminal
RATED VOLTAGE
13.5 kVp
DIELECTRIC STRENGTH TEST
157 % rated AC voltage (21 200 VRMS, 50 Hz, 5 minutes)
MATERIAL
Capacitor elements made from class 1 ceramic dielectric
with noble metal electrodes.
RF-POWER TEST
140 % of rated power, for 5 minutes in a test generator circuit
Connection terminals:
thread terminal, brass, silver plated.
DISSIPATION FACTOR
Allowable torque: 5.0 Nm (44 lbf in)
Max. 0.025 % (1 MHz)
FINISH
INSULATION RESISTANCE
Capacitor body completely glazed.
Min. 100 000 M (at 25 °C)
MARKING
OPERATING TEMPERATURE RANGE
Type designator, capacitance value and tolerance, test
voltage (peak value), ceramic material code, production
date code, manufacturer logo, serial no.
-55 °C to +100 °C
WATERCOOLING SYSTEM
Allowable intake water pressure: 15 bar (218 psi)
Revision: 21-Jan-16
Document Number: 22087
1
For technical questions, contact: [email protected]
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
TOSW 118115
www.vishay.com
Vishay Draloric
SAP PART NUMBER AND ELECTRICAL DATA
PART NUMBER
CERAMIC
CAP. VALUES
(pF)
RATED VOLTAGE
(kVp)
RATED POWER (1)
(kvar)
RATED CURRENT
(ARMS)
BW118115XT125P36CB
R16 High Q
125
13.5
Up to 1940
203
Note
(1) The temperature of the connection terminals must be less than 30 °C
DIMENSIONS in millimeters (inches)
55 + 3
(2.17 + 0.12)
Copper tube fittings
Ø 8.0 (0.315) inner Dia.
Ø 10.0 (0.394) outer Dia.
40 min.
(1.57 min.)
60°
Ø 126 ± 3
(4.96 ± 0.12 Dia.)
137 ± 2
(5.39 ± 0.08)
95.2 ± 0.5
3.748 ± 0.020
86.4 ± 0.3
(3.402 ± 0.012)
60°
M6 threads
DERATING DIAGRAM
Ig (ARMS)
Qg (kvar)
10 000
27 MHz
Ug (kVp)
100
Ug
1000
10
100
1
Qg
Ig
0.1
0.1
1
10
100
1000
10
10 000
Frequency (MHz)
WATERCOOLING SYSTEM
The watercooling systems are designed with 8 mm / 10 mm copper tube fittings. The fittings must not be used as a mechanical
support for other devices or components. 
Each cooling system is designed to operate at a maximum water pressure of 15 bars (218 psi).
A coolant temperature rate monitor must provide a fail-safe on / off power control for the RF equipment.
Normal tap water or de-mineralized water may be used for cooling. The water must be reasonably free of CaCO3 and clear of
foreign particles or milkyness. The pH-value of the coolant should be between 6 and 8.
INSTALLATION
The electrical connection to one electrode must be flexible in order to prevent the generation of physical forces which could
damage the capacitor elements. Such forces are often generated by the dimensional differences resulting from the normal
physical tolerances of the capacitors.
RELATED DOCUMENTS
General Information
Revision: 21-Jan-16
www.vishay.com/doc?22071
Document Number: 22087
2
For technical questions, contact: [email protected]
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
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Revision: 02-Oct-12
1
Document Number: 91000