WF095220WF50238BJ1

TWX, TWXF www.vishay.com Vishay Draloric Water Cooled RF Power Pot Capacitors, External Cooling System FEATURES • High voltage, current, and power ratings • Compact design reduces terminal self inductance and permits high frequency operation • Increased power density is achieved through water cooling. Enhanced reliability is achieved with a rugged mechanical design APPLICATIONS Water cooled RF power pot capacitors are designed for use in the tank circuits of high power RF equipment such as induction heating and welding equipment, dielectric heating, and a variety of specialized RF applications. DESIGN SUPPORT TOOLS AVAILABLE 3D 3D 3D Models QUICK REFERENCE DATA DESCRIPTION Ceramic class Ceramic dielectric Type Voltage (Vp) Min. capacitance (pF) Max. capacitance (pF) Mounting VALUE 1 R7, R16, R42, R85 TWX TWXF 12 000 14 000 16 000 20 000 25 000 10 000 12 000 14 000 16 000 18 000 20 000 22 500 25 000 5000 100 4000 3000 2500 10 000 5000 100 4000 7600 3000 7500 2500 5000 5000 4000 3000 2500 10 000 5000 10 000 10 000 10 000 7600 7500 5000 Screw terminal PRODUCT DESCRIPTION CERAMIC DIELECTRICS TWX and TWXF pot-styled capacitors dissipate the heat produced under load by means of water flow around the capacitor element. In order to provide protection from influences of the chemical / physical characteristics of the coolant, a glass passivation layer is applied over the cooled noble metal electrode. The ceramic capacitor element is housed in a rugged copper case. The electrical terminations are directly soldered onto the noble metal electrodes, providing a strong, rigid connection of unsurpassed reliability. The TWX model is made with a contoured, glazed insulation rim designed for use in a clean, dry environment. The TWXF types feature an umbrella shaped coating rim made from silicone elastomer to minimize the adverse effects of moisture, dust, and other soiling in the working environment, and to improve the characteristics of the electrical field. • • • • MARKING Type designator, capacitance value and tolerance, rated RF voltage, ceramic material code, production date code, manufacturer logo, serial number. ACCESSORIES ADDED All water cooled pot capacitors are supplied with the necessary screws / nuts and contact plates to make the connection to the electrode terminals. Ferrules and sleeve nuts for the water supply connections are also included. R7 (TCC: +100 ppm/K) R16 (TCC: +100 ppm/K) R42 (TCC: -250 ppm/K) R85 (TCC: -750 ppm/K) RATED VOLTAGE • 10 kVp • 12 kVp • 14 kVp • 16 kVp • 18 kVp • 20 kVp • 22.5 kVp • 25 kVp DIELECTRIC STRENGTH TEST 200 % of rated AC voltage, 50 Hz RF POWER TEST 125 % to 140 % of rated power, for 10 minutes in a test generator circuit DISSIPATION FACTOR R7: max. 0.07 % R16: max. 0.04 % R42, R85: max. 0.05 % Measuring frequencies: 1 MHz (< 1 nF); 300 kHz or 100 kHz ( 1 nF) INSULATION RESISTANCE CAPACITANCE RANGE Min. 10 000 M (at 25 °C) 100 pF to 10 nF OPERATING TEMPERATURE RANGE CAPACITANCE TOLERANCE Find details of water cooling under the “Guidelines” section in the datasheet. ± 20 %; ± 10 % Revision: 04-Mar-2019 Document Number: 22131 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 TWX, TWXF www.vishay.com Vishay Draloric SAP PART NUMBER AND ELECTRICAL DATA PART NUMBER CERAMIC CAP. VALUES (pF) RATED VOLTAGE (kVp) RATED POWER (kvar) RATED CURRENT (ARMS) MIN. WATER FLOW RATE PER MINUTE (liter / US-gal.) 150 1.0 / 0.27 PERMISSIBLE INSTALLATION POS. (1) TYPE TWX WX095162WJ101##BF1 100 R7 WX095162WJ201##BF1 WX095162WJ401##BG1 R16 400 WX095187WJ102##BH1 R42 1000 WX095162WJ152##BJ1 1500 WX095162WJ202##BJ1 2000 WX095162WJ252##BJ1 2500 R85 WX135242WP302##BJ1 1100 200 1500 14 Only vertical, umbrella-up position is permitted 1000 1500 3000 20 2000 200 1.4 / 0.38 WX110250WJ472##BJ1 4700 14 2000 200 1.4 / 0.38 WX095220WF502##BJ1 5000 12 1275 150 1.0 / 0.27 WX110250WJ502##BJ1 5000 14 2000 200 1.4 / 0.38 Note (1) ## 14th to 15th digit: capacitance tolerance code ± 20 % = 38, ± 10 % = 36 DIMENSIONS in millimeters (inches) PART NUMBER D1 D3 D4 D5 D6 L1 L2 L3 162 (6.38) 55 (2.17) 187 (7.36) 80 (3.15) 162 (6.38) 55 (2.17) 108 (4.25) 22 (0.87) 115 (4.53) 18 (0.71) TYPE TWX WX095162WJ101##BF1 WX095162WJ201##BF1 WX095162WJ401##BG1 WX095187WJ102##BH1 95 (3.74) 94 (3.70) 85 (3.35) 40 (1.57) 18 (0.71) WX095162WJ152##BJ1 WX095162WJ202##BJ1 30 (1.18) WX095162WJ252##BJ1 WX135242WP302##BJ1 135 (5.31) 135 (5.31) 122 (4.80) 50 (1.97) 242 (9.53) WX110250WJ472##BJ1 110 (4.33) 108 (4.25) 98 (3.86) 45 (1.77) 248 (9.76) WX095220WF502##BJ1 95 (3.74) 94 (3.70) 85 (3.35) 40 (1.57) 220 (8.66) WX110250WJ502##BJ1 110 (4.33) 108 (4.25) 98 (3.86) 45 (1.77) 248 (9.76) M17 x 1.5 thread D3 Contact plate M17 sleeve nut and ferrule each fitting D7 60 ° 60 ° D5 20 (0.79) ° 60 Water inlet M5-slotted head screws L3 L2 Water outlet D D6 L1 22 mm Hex 3+2 (0.12 + 0.08) 17 mm Hex Connection terminal of the inner electrode element 60° Connection terminal of the outer electrode element D4 D1 Revision: 04-Mar-2019 Document Number: 22131 2 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 TWX, TWXF www.vishay.com Vishay Draloric SAP PART NUMBER AND ELECTRICAL DATA PART NUMBER CERAMIC CAP. VALUES (pF) RATED VOLTAGE (kVp) RATED POWER (kvar) RATED CURRENT (ARMS) MIN. WATER FLOW RATE PER MINUTE (liter / US-gal.) 150 1.0 / 0.27 PERMISSIBLE INSTALLATION POS. (1)(2)(3) TYPE TWXF WF095162WJ101##BF1 WF095162WJ201##BF1 R7 1100 100 200 WF095162WJ401##BG1 R16 400 WF095187WJ102##BH1 R42 1000 1500 14 WF095162WJ152##BJ1 1500 WF095162WJ202##BJ1 2000 WF095162WJ252##BJ1 2500 WF135242BQ252##BJ1 2500 25 2500 250 2.1 / 0.57 WF135242WP302##BJ1 3000 20 2000 200 1.4 / 0.38 WF135218WL402##BJ1 4000 16 2500 250 1.8 / 0.49 WF110250WJ472##BJ1 4700 14 2000 200 1.4 / 0.38 WF095220WF502##BJ1 5000 12 1275 150 1.0 / 0.27 WF110250WJ502##BJ1 5000 14 2000 200 1.4 / 0.38 WF135250WL502##BJ1 5000 16 2830 250 2.0 / 0.54 WF135285WP502##BJ1 5000 20 3000 250 2.1 / 0.57 5000 25 3200 250 2.3 / 0.62 6000 16 2830 250 2.0 / 0.54 6000 20 3000 270 2.1 / 0.57 (1) WF135373BQ502##BJ1 WF135272WL602##BJ1 WF165278WP602##BJ1 R85 1000 1500 (1)(2)(3) WF165270WJ752##BJ1 7500 14 3000 300 2.1 / 0.57 (1)(3) WF165336WQ752##BJ1 7500 22.5 4000 350 2.9 / 0.80 (1)(3) WF125300WJ762##BJ1 7600 14 2500 250 1.4 / 0.38 (1)(2)(3) WF165270WL762##BJ1 7600 16 2830 250 2.0 / 0.54 (1) WF125420WN762##BJ1 7600 18 2500 250 2.0 / 0.54 (1)(3) WF165336WP762##BJ1 7600 20 3200 270 2.3 / 0.62 (1) WF125300BH103##BJ1 10 000 10 2000 280 1.4 / 0.38 (1)(2)(3) WF125405WJ103##BJ1 10 000 14 2800 290 2.1 / 0.57 (1) WF165335WL103##BJ1 10 000 16 3395 300 2.5 / 0.70 (1)(3) WF165420WN103##BJ1 10 000 18 2500 250 2.0 / 0.54 (1)(3) Notes ## 14th to 15th digit: capacitance tolerance code ± 20 % = 38; ± 10 % = 36 Permissible installation position: (1) Only vertical, umbrella-up position is permitted (2) Vertical, umbrella-down position (3) Horizontal mounting, water connections topside • Special versions with additional water-emptying screw or with ERMETO fittings are available on request. Please contact us. Revision: 04-Mar-2019 Document Number: 22131 3 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 TWX, TWXF www.vishay.com Vishay Draloric DIMENSIONS in millimeters (inches) PART NUMBER D1 D2 D4 D5 D6 D7 L1 L2 L3 B1 B2 FIG. TYPE TWXF 1 WF095162WJ101##BF1 WF095162WJ201##BF1 162 (6.38) WF095162WJ401##BG1 WF095187WJ102##BH1 95 (3.74) 110 (4.33) 85 (3.35) 40 (1.58) 5.5 (0.217) 55 (2.17) 1 1 187 (7.36) 80 (3.15) 162 (6.38) 55 (2.17) 18 (0.71) 1 WF095162WJ152##BJ1 1 WF095162WJ202##BJ1 1 WF095162WJ252##BJ1 1 WF135242BQ252##BJ1 WF135242WP302##BJ1 135 (5.31) 148 (5.83) 122 (4.80) WF135218WL402##BJ1 50 (1.97) 30 (1.18) 6.5 (0.217) 242 (9.53) 110 (4.33) 125 (4.92) 98 (3.86) WF095220WF502##BJ1 95 (3.47) 110 (4.33) 85 (3.35) 40 (1.58) WF110250WJ502##BJ1 110 (4.33) 125 (4.92) 98 (3.86) 45 (1.77) 5.5 (0.217) 220 (8.66) WF135285WP502##BJ1 50 (1.97) 1 115 (4.53) 18 (0.71) 1 248 (9.76) 250 (9.84) 122 (4.80) 1 - 248 (9.76) 45 (1.77) WF135250WL502##BJ1 148 (5.83) 1 22 (0.87) 218 (8.58) WF110250WJ472##BJ1 135 (5.31) 1 108 (4.25) 6.5 (0.256) 285 (11.22) 1 1 134 (5.28) 1 22 (0.87) WF135373BQ502##BJ1 373 (14.69) 216 (8.50) WF135272WL602##BJ1 272 (10.71) 134 (5.28) 9.5 (0.374) 278 (10.94) 136 (5.35) 30 (1.18) 165 (6.50) 135 (5.31) 2 6.5 (0.256) 270 (10.63) 134 (5.28) 22 (0.87) - - 1 336 (13.23) 194 (7.64) WF165278WP602##BJ1 - WF165270WJ752##BJ1 165 (6.60) 170 (6.69) 146 (5.75) 45 (1.77) 75 (2.95) WF165336WQ752##BJ1 WF125300WJ762##BJ1 148 (5.83) 30 (1.18) 50 (1.97) 303 (11.93) 180 (7.09) WF165270WL762##BJ1 170 (6.69) 45 (1.77) 75 (2.95) 270 (10.63) 140 (5.51) WF125420WN762##BJ1 148 (5.83) 30 (1.18) 50 (1.97) 420 (16.54) 280 (11.02) 45 (1.77) 75 (2.95) 336 (13.23) 194 (7.64) 303 (11.93) 180 (7.09) 405 (15.94) 280 (11.02) 335 (13.19) 208 (8.82) 420 (16.54) 280 (11.02) WF165336WP762##BJ1 - 170 (6.69) - WF125300BH103##BJ1 148 (5.83) 30 (1.18) 50 (1.97) WF125405WJ103##BJ1 WF165335WL103##BJ1 170 (6.69) WF165420WN103##BJ1 Revision: 04-Mar-2019 45 (1.77) 75 (2.95) 9.5 (0.374) 1 1 2 165 (6.50) 135 (5.31) 2 2 30 (1.18) 127 (5.00) 98 (3.86) 2 165 (6.50) 135 (5.31) 2 127 (5.00) 98 (3.86) 2 2 2 165 (6.50) 135 (5.31) 2 Document Number: 22131 4 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 TWX, TWXF www.vishay.com Vishay Draloric DIMENSIONS in millimeters (inches) Fig. 2 D D6 17 mm Hex 22 mm Hex Water outlet 20 (0.79) L2 Water inlet D2 Connection terminal of the inner electrode element 3 + 2 (0.12 + 0.08) 17 mm Hex D2 M17 x 1.5 thread M17 x 1.5 thread Moisture protection (silicone elastomer) 3 + 2 (0.12 + 0.08) Fig. 1 D6 22 mm Hex L1 20 (0.79) L2 L3 L1 Connection terminal of the outer electrode element L3 M17 sleeve nut and ferrule each fitting D7 60 ° D4 D1 B1 B2 M5 - slotted head screw D7 D5 60 ° 60 ° 60 60 ° ° D5 Contact plate 60° 60° DERATING DIAGRAMS WX095162WJ101##BF1, WF095162WJ101##BF1 Ug (kVp) 100 17.85 MHz 32.52 MHz Ig (ARMS) Qg (kvar) 10 000 WX095162WJ201##BF1, WF095162WJ201##BF1 Ug (kVp) 100 Ug Ig (ARMS) Qg (kvar) 10 000 12.00 MHz Ug 10 1000 1 100 Qg 10 1 1 Ig 10 100 10 1000 Frequency (MHz) 0.1 0.1 1 10 100 10 1000 Frequency (MHz) WX095162WJ401##BG1, WF095162WJ401##BG1 Ug (kVp) 100 100 Qg Ig 0.1 0.1 1000 Ig (ARMS) Qg (kvar) 10 000 6.00 MHz WX095187WJ102##BH1, WF095187WJ102##BH1 Ig (ARMS) Qg (kvar) 10 000 2.40 MHz Ug (kVp) 100 Ug Ug 10 1000 10 1000 Qg 1 100 Qg 100 Ig Ig 0.1 0.1 1 1 10 Frequency (MHz) Revision: 04-Mar-2019 100 10 1000 0.1 0.1 1 10 10 100 Frequency (MHz) Document Number: 22131 5 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 TWX, TWXF www.vishay.com Vishay Draloric DERATING DIAGRAMS WX095162WJ152##BJ1, WF095162WJ152##BJ1 Ug (kVp) 100 WX095162WJ202##BJ1, WF095162WJ202##BJ1 Ig (ARMS) Qg (kvar) 10 000 1.08 MHz 2.39 MHz Ug (kVp) 100 Ug Ig (ARMS) Qg (kvar) 10 000 1.20 MHz Ug 10 1000 10 1000 Qg 1 100 1 100 Qg Ig Ig 0.1 0.1 1 10 100 10 Frequency (MHz) 0.1 0.01 0.1 1 WX095162WJ252##BJ1, WF095162WJ252##BJ1 10 100 WF135242BQ252##BJ1 Ig (ARMS) Qg (kvar) 10 000 0.96 MHz Ug (kVp) 100 10 Frequency (MHz) Ug (kVp) 100 Ig (ARMS) Qg (kvar) 10 000 1.59 MHz 0.51 MHz Ug Ug 1000 10 1 100 Qg 10 1000 Qg 1 100 Ig 10 0.1 0.01 0.1 1 10 100 Ig 0.1 0.01 0.1 1 Frequency (MHz) WX135242WP302##BJ1, WF135242WP302##BJ1 Ug 10 Qg 1000 10 100 1 1000 Qg 100 Ig Ig 10 0.1 0.01 0.1 1 10 100 10 0.1 0.01 0.1 Frequency (MHz) Ig (ARMS) Qg (kvar) 10 000 0.68 MHz Ug (kVp) 100 10 100 WX095220WF502##BJ1, WF095220WF502##BJ1 Ig (ARMS) Qg (kvar) 10 000 0.56 MHz Ug (kVp) 100 Ug Ug 10 1000 100 Qg 10 1 1000 100 Qg Ig 0.1 0.01 1 Frequency (MHz) WX110250WJ472##BJ1, WF110250WJ472##BJ1 1 Ig (ARMS) Qg (kvar) 10 000 0.78 MHz 0.99 MHz Ug (kVp) 100 Ug 1 10 100 WF135218WL402##BJ1 Ig (ARMS) Qg (kvar) 10 000 0.53 MHz 1.06 MHz Ug (kVp) 100 10 Frequency (MHz) Ig 10 0.1 Revision: 04-Mar-2019 1 Frequency (MHz) 10 100 0.1 0.01 10 0.1 1 Frequency (MHz) 10 100 Document Number: 22131 6 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 TWX, TWXF www.vishay.com Vishay Draloric DERATING DIAGRAMS WX110250WJ502##BJ1, WF110250WJ502##BJ1 Ig (ARMS) Qg (kvar) 10 000 0.65 MHz Ug (kVp) 100 WF135250WL502##BJ1 Ug (kVp) 100 Ug Ug 10 1 Ig (ARMS) Qg (kvar) 10 000 0.70 MHz 1000 10 1000 Qg Qg 100 1 100 Ig Ig 0.1 0.01 10 0.1 1 Frequency (MHz) 10 100 0.1 0.01 10 0.1 WF135285WP502##BJ1 Ug (kVp) 100 10 100 WF135273502BQ##BJ1 Ig (ARMS) Qg (kvar) 10 000 0.48 MHz 0.66 MHz 1 Frequency (MHz) Ug (kVp) 100 0.33 MHz Ig (ARMS) Qg (kvar) 10 000 0.62 MHz Ug Ug 10 1000 10 1000 Qg Qg 1 100 1 Ig 100 Ig 0.1 0.01 10 0.1 1 Frequency (MHz) 10 100 0.1 0.01 10 0.1 WF135272WL602##BJ1 Ug (kVp) 100 10 100 WF165278WP602##BJ1 Ig (ARMS) Qg (kvar) 10 000 0.59 MHz 1 Frequency (MHz) Ug (kVp) 100 Ig (ARMS) Qg (kvar) 10 000 0.40 MHz 0.64 MHz Ug Ug 10 1000 10 1000 Qg Qg 1 100 1 100 Ig 0.1 0.01 Ig 10 0.1 1 Frequency (MHz) 10 100 0.1 0.01 10 0.1 WF165270WJ752##BJ1 Ug (kVp) 100 Frequency (MHz) 10 100 WF165336WQ752##BJ1 Ig (ARMS) Qg (kvar) 10 000 0.64 MHz 1 Ug (kVp) 100 0.34 MHz Ig (ARMS) Qg (kvar) 10 000 0.65 MHz Ug Ug 10 1000 10 1000 Qg Qg 1 100 100 Ig Ig 0.1 0.01 1 10 0.1 Revision: 04-Mar-2019 1 Frequency (MHz) 10 100 0.1 0.01 10 0.1 1 Frequency (MHz) 10 100 Document Number: 22131 7 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 TWX, TWXF www.vishay.com Vishay Draloric DERATING DIAGRAMS WF125300WJ762##BJ1 Ug (kVp) 100 WF165270WL762##BJ1 Ig (ARMS) Qg (kvar) 10 000 0.53 MHz Ug (kVp) 100 Ug Ig (ARMS) Qg (kvar) 10 000 0.46 MHz Ug 10 1000 10 Qg 1000 Qg 1 100 1 100 Ig Ig 0.1 0.01 10 0.1 1 Frequency (MHz) 10 100 0.1 0.01 10 0.1 WF125420WN762##BJ1 Ug (kVp) 100 10 100 WF165336WP762##BJ1 Ig (ARMS) Qg (kvar) 10 000 0.32 MHz 0.52 MHz 1 Frequency (MHz) Ug (kVp) 100 Ug Ig (ARMS) Qg (kvar) 10 000 0.33 MHz 0.48 MHz Ug 10 1000 10 Qg 1000 Qg 1 100 1 Ig 100 Ig 0.1 0.01 10 0.1 1 Frequency (MHz) 10 100 0.1 0.01 10 0.1 WF125300BH103##BJ1 Ug (kVp) 100 10 100 WF125405WJ103##BJ1 Ig (ARMS) Qg (kvar) 10 000 0.63 MHz 1 Frequency (MHz) Ug (kVp) 100 Ig (ARMS) Qg (kvar) 10 000 0.45 MHz 0.48 MHz Ug Ug 10 1000 10 1000 Qg Qg 1 100 1 100 Ig Ig 0.1 0.01 0.1 1 Frequency (MHz) 10 10 100 0.1 0.01 10 0.1 WF165335WL103##BJ1 Ug (kVp) 100 Ug (kVp) 100 100 0.25 MHz Ig (ARMS) Qg (kvar) 10 000 0.40 MHz Ug Ug 10 1000 10 Qg 1000 Qg 1 100 1 100 Ig Ig 0.1 0.01 Frequency (MHz) 10 WF165420WN103##BJ1 Ig (ARMS) Qg (kvar) 10 000 0.42 MHz 1 10 0.1 Revision: 04-Mar-2019 1 Frequency (MHz) 10 100 0.1 0.01 10 0.1 1 Frequency (MHz) 10 100 Document Number: 22131 8 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 TWX, TWXF www.vishay.com Vishay Draloric GUIDELINES ELECTRICAL DATA AND GUIDELINES • The main physical and electrical characteristics of the capacitors and ceramic materials used, are listed in the tables on the general section and in the individual datasheets • The continuous limit values of voltage, current, and power given in the diagrams must be observed. • The rated voltage given in the tables is the peak value of the sinusoidal AC voltage or the sum of the DC and peak AC voltages for which the capacitor is rated under continuous operation. • The rated current in the tables is the effective value of the sinusoidal current for which the current paths of the capacitor are designed. INSTALLATION • Water cooled pot capacitors (TWX and TWXF) are designed to be installed in a vertical, umbrella-up position. Other positions may be allowed as shown on the individual datasheets. For large generators requiring multiple capacitors we recommended a circular mounting pattern for optimum circuit performance. • When capacitors are connected in parallel, care should be taken to mount the top electrodes of the capacitor away from the RF-bus bar to minimize the effects of stray electromagnetic fields. The capacitors elements must not exceed a temperature of more than +100 °C. • The electrical connection to the inner electrode must be flexible in order to prevent the generation of the 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. The capacitor’s inner electrode connector must not be used as a mechanical support for other devices or components. COOLING • The cooling system is designed to operate at a maximum water pressure of 4 bars (58 psi). • The water outlet of the capacitor must always be located higher than the water inlet in a vertical installation. This allows any air to escape from the unit. Horizontal installations require that both water connections be at the top-side of the unit. To preserve the capacitors from frost damages during the transport, we offer special models with outlet screws for emptying the cooling water from the unit. • The minimum water flow rates specified in the tables must be observed. When using antifreeze mixtures, the flow rate should be increased by at least 20 %. • The cooling system is designed to have a water temperature increase of < 10 °C (water inlet to water outlet) when the capacitor is operated at full rated power and the minimum water flow rate. A water intake temperature of  30 °C is recommended. If the cooling system of several capacitors is connected in series, the intake temperature of the coolant must not exceed 50 °C for any capacitors. • The pressure drop in a series connected cooling system is small. The table below illustrates the effects upon water flow rates as a function of the number of series connected TWXF 135285 capacitors in the system with a constant intake water pressure of 3 bars (43.5 psi). Number of cooling systems in series 1 2 3 4 5 Water flow rate (liters/minute) 13.0 10.5 8.5 7.3 6.0 Water flow rate (US-gal./minute) 3.43 2.77 2.24 1.92 1.58 • Intake water temperature fluctuations in excess of 3 °C/s must be avoided to prevent damage to the capacitor elements. • 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 milkiness. The pH-value of the coolant should between 6 and 8. Revision: 04-Mar-2019 Document Number: 22131 9 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 TWX, TWXF www.vishay.com Vishay Draloric QUALITY AND RELIABILITY ELECTRICAL AND MECHANICAL SCREENING TESTS All capacitors are subjected to the following tests prior to shipment: • Capacitance value (1.0 MHz or 0.1 MHz, 20 VRMS, 25 °C ± 5 °C) • Dissipation factor (1.0 MHz or 0.3 MHz, 10 VRMS, 25 °C ± 5 °C) • Insulation resistance (100 VDC, 25 °C ± 5 °C) • Dielectric strength (200 % rated peak voltage, 50 Hz, 5 minutes) • RF power test (125 % to 140 % rated power for 10 minutes in a test generator circuit) • Pressure test (standard: 6 bars [87 psi] for 1 minute, 25 °C ± 5 °C) WARRANTY STIPULATION FOR WATER COOLED CERAMIC POWER RF CAPACITORS • Unless otherwise provided for hereinafter, warranty shall be governed by General Terms of Sale and Delivery. • Warranty is assumed for capacitors which fail to operate owing to faults in material or production, and within the warranty period for capacitors • Excluded from warranty are capacitors prematurely rendered unserviceable owing to improper treatment, overloading, circuit errors, as well as capacitors operated without observing the data given in our catalogue. Warranty is also excluded in cases where faults can no longer be recognized on the capacitor owing to third party interferences. Warranty is only effectively assumed when meeting the requirements referred to hereinafter. • For claiming warranty, the defective capacitor should be returned to us, if possible in its original packing, within 14 days following the data of failure, being accompanied by the completely filled-in and signed Original Guarantee Certificate. The risks of transportation, as well as any shipping costs and other charges shall in any case be borne by the sender. • Warranty can only become effective if the defective capacitor is received by us in the same condition as it was when it happened to fail. • We have the right to inspect any records proving the use of the capacitor. • The decision as to whether we are obliged to assume warranty for the capacitor shall exclusively rest with us. • When acknowledging the warranty claim, any non-repairable capacitor shall remain our property. When refusing a warranty claim the defective capacitor will be returned at the customer’s expense only if demanded so explicitly when asserting the warranty claim. In case examination required disassembly of the capacitor no claims for damage can be derived therefrom. • The customer gives us the right to have the system checked in which the capacitor was operated. • When acknowledging a warranty claim, restitution is made by supplying either a repaired and newly tested capacitor or by supplying a new one. • Warranty shall only extend to the capacitor itself. Any further claims for damages are excluded. CONDITIONS OF GUARANTEE Pursuant to the foregoing stipulations we assume warranty for these water cooled pot capacitors up to a period of 5000 hours of operating service. Any claims for warranty, however will extinguish 24 months following the date of delivery. RELATED DOCUMENTS General Information Revision: 04-Mar-2019 www.vishay.com/doc?22071 Document Number: 22131 10 For technical questions, contact: powcap@vishay.com THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. 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