TWXFZ 106266
www.vishay.com
Vishay Draloric
Watercooled RF Power Pot Capacitors
Internal Cooling System
FEATURES
• High voltage, current and power ratings
• Compact design reduces terminal self inductance and
permit operation up to higher frequencies
• These pot capacitors feature increased density through
watercooling and rugged mechanical construction for a
maximum reliability
APPLICATIONS
Watercooled RF power pot capacitors are designed for use
in the tank circuit of high power RF equipment such as
induction heating and welding equipment, dielectric heating
or a variety of specialized RF applications.
CAPACITANCE RANGE
4.0 nF to 5.0 nF
QUICK REFERENCE DATA
DESCRIPTION
VALUE
Ceramic Class
1
CAPACITANCE TOLERANCE
10 ꢀ
Ceramic Dielectric
Type
R85
TWXFZ 106266
Voltage (Vp)
16 000
20 000
CERAMIC DIELECTRIC
Min. Capacitance (pF)
Max. Capacitance (pF)
Mounting
5000
5000
4000
4000
R85 (TCC - 750 ppm/K)
RATED VOLTAGE
• 16 kVp
Screw terminal
• 20 kVp
PRODUCT DESCRIPTION
TWXFZ pot-styled capacitors dissipate the heat produced
under load by means of water flow around the capacitor
elements. In order to provide protection from influences of
the chemical / physical characteristics of the coolant, a
glass passivation layer is applied over the cooled inner
noble metal electrode.
DIELECTRIC STRENGTH TEST
200 ꢀ of rated voltage, 50 Hz
RF POWER TEST
120 ꢀ of rated power, for 10 minutes in a test generator circuit
The electrical terminations are made directly to the noble
metal electrodes either utilizing special soldering
techniques. This method of attachment provides a strong,
rigid connection of unsurpassed reliability. The TWXFZ
pot-styled capacitors feature an umbrella shaped insulating
rim made from silicone elastomer to minimize the adverse
effects of moisture, dust and other impurities in the
working environment and to improve the characteristics of
DISSIPATION FACTOR
Max. 0.05 ꢀ
Measuring frequencies:
300 kHz or 100 kHz
INSULATION RESISTANCE
Min. 10 000 M (at 25 °C)
the
electrical
field.
The
capacitor
body
is
protective lacquered.
OPERATING TEMPERATURE RANGE
Details of watercooling find under “Guidelines”, next pages
MARKING
Type designator, capacitance value and tolerance, rated RF
voltage, ceramic material code, production date code,
manufacturer logo, serial number.
ACCESSORIES ADDED
All watercooled pot capacitors are supplied with
the necessary screws / nuts to make the connection to the
electrode terminals. Ferrules and sleeve nuts for the water
supply connections are also included.
Revision: 11-Sep-15
Document Number: 22147
1
For technical questions, contact: powcap@vishay.com
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