General Information Vishay Draloric Ceramic RF-Power Capacitors GENERAL DESCRIPTION: The Ceramic RF-Power Capacitor can be defined as an electrical device consisting of a ceramic dielectric with conductive noble-metal electrodes, terminations and a protective coating. The spectrum of capacitance values extends from the lower picofarad range up to the nanofarad range. The rated voltages range from 636 V (peak) up to 40,000 V (peak). Typical frequencies of application range from 20KHz to 100MHz. These capacitors can be operated with DC and AC voltage both individually and in combination. The electrical power-handling capacity is largely determined by the three parameters, VOLTAGE, CURRENT and POWER. These parameters essentially depend on the CAPACITANCE, the OPERATING FREQUENCY and the AMBIENT TEMPERATURE. APPLICATIONS: Typical uses for ceramic RF-Power capacitors are: • INDUCTIVE HEATING EQUIPMENT (Operating frequencies above 20KHz) • DIELECTRIC HEATING EQUIPMENT (Operating frequencies above 5MHz) • IMPEDANCE TUNING CIRCUITS • RF FILTER and PULSE FORMING CIRCUITS • DC VOLTAGE BLOCKING, RF-VOLTAGE DIVIDERS • RADIO TRANSMITTING EQUIPMENT • VOLTAGE MULTIPLIERS (Capacitor stacks) ELECTRICAL PARAMETERS: The electrical performance is determined by four parameters: CAPACITANCE, VOLTAGE, CURRENT and REACTIVE POWER. CAPACITANCE: Rated capacitance CR is the nominal capacitance value. CAPACITANCE MEASUREMENTS: The capacitance of all Ceramic RF Power Capacitors - except where deviations are agreed upon in the ordering procedure are measured under the following conditions: MEASURING FREQUENCY: Class 1-Ceramic dielectric Class 2-Ceramic dielectric (1 ± 0.2) MHz or (100 ± 20) kHz (1 ± 0.2) kHz (Field strength max. 3kVRMS per millimeter) MEASURING VOLTAGE: Class 1-Ceramic dielectric Class 2-Ceramic dielectric ≤ 5.0VRMS ≤ 1.2VRMS CLIMATIC CONDITIONS OF MEASUREMENTS: Temperature Relative humidity (23 ± 3)°C, for reference measurements (20 ± 1)°C ≤ 75% CAPACITANCE TOLERANCE: CLASS 1 - CERAMIC DIELECTRIC TOLERANCE ± 0.25pF CODE LETTER C Applicable Nominal Capacitance ± 0.5pF ± 1pF ± 2pF ± 5% ± 10% ± 20% D F G J K M < 10pF ≥ 10pF CLASS 2 - CERAMIC DIELETRIC TOLERANCE CODE LETTER ± 5% ± 10% ± 20% - 20 + 50% - 20 + 80% J K M S Z Tolerances other than those stated in this catalog are subject to special agreement. www.vishay.com 2 For technical questions, contact [email protected] Document Number: 22071 Revision 12-Oct-04 General Information Vishay Draloric Ceramic RF-Power Capacitors RATED VOLTAGE: UDC UR [KVp] URMS 1.0 0.7 UR [KVp] U U The rated voltage UR is either the peak value of the approximate sinusoidal AC voltage or the sum of both the DC voltage and the approximate sinusoidal AC voltage for which the capacitor has been designed. The rated voltage is stated in KVpeak (KVp) or Vpeak (Vp). 0 0 t t DC + AC VOLTAGE PURE RF-VOLTAGE If the capacitor is operated above the lower limit frequency fu, the rated voltage has to be restricted so the rated power will not be exceeded (see next page). RATED CURRENT: The rated current IR is the maximum effective value of the sinusoidal current for which the current paths of the capacitor are designed. This rated current is reached only at the upper frequency limit fo (see next page). RATED POWER: The rated power QR is the reactive power for which the capacitor has been designed taking into account its dielectric losses. The rated power QR (KVAr) stated in the following charts refers to an ambient temperature of 30°C. When used without forced cooling, above 30°C, the rated power has to be reduced according to the following formula: QN (δA > 30°C) = QN (catalog value) • 100°C - δA 70°C POWER [%KVAr] Reactive power as a function of the ambient temperature: 120 110 100 90 80 70 60 50 40 30 20 10 0 30 20 10 0 10 20 30 40 50 60 70 80 90 100 AMBIENT TEMPERATURE δ A [ºC] The following formula can be applied to determine whether a capacitor is operated within the permissible limits of reactive power and rated current: URMS • 2 • π • f • C Document Number: 22071 Revision 12-Oct-04 ≤ IR URMS2 • 2 • π • f • C ≤ QR For technical questions, contact [email protected] URMS f C in Volt in Hertz in Farad www.vishay.com 3 General Information Vishay Draloric Ceramic RF-Power Capacitors FREQUENCY: The power handling capability of a capacitor with respect to voltage, power and current varies at different frequencies. Three frequency ranges can be defined in terms of the upper (fo) and lower (fu) limit frequencies. In each range one of the electrical parameters limits the maximum wattage of the capacitor. RANGE 2 RANGE 3 RANGE 1 RANGE 2 fu fo RANGE 2 RANGE 3 lg I fu l fo CONTINUOUSLY PERMISSIBLE POWER IN RANGE 2 CONTINUOUSLY PERMISSIBLE VOLTAGE IN RANGE 1 RANGE 1 RANGE 3 lg Q lg U RANGE 1 fu fo lg f CONTINUOUSLY PERMISSIBLE CURRENT IN RANGE 3 The limit frequencies fu and fo can be calculated for each capacitor with the following formula: fu = 318 • QR UR 2 • C fo = 159 • IR QR • C f C U Q I 2 in MHz in pF in KVp in KVAr in A For several capacitors series, this can be seen from the diagrams on the individual datasheets. For other capacitors, charts showing the maximum permissible levels of voltage, power and current for continuous operation at 30°C ambient temperature can be provided on request. INSULATION RESISTANCE: The insulation resistance is the DC resistance of a capacitor, resulting under the conditions specified below, from the bulk resistivity of the dielectric material and the surface resistance. Within the range of the permissible operating temperatures, the bulk resistance of ceramic dielectric is extremely high so that mainly the surface resistance is measured. CLASS 1 CAPACITORS Limiting Values of the Insulation Resistance min. 1 • 10 10 CLASS 2 CAPACITORS Ohm min. 5 • 109 Ohm INSULATION - RESISTANCE MEASURING CONDITIONS MEASURING VOLTAGE: Class 1- and Class 2-Ceramic dielectric 100VDC DURATION: (60 ± 5) s CLIMATIC CONDITIONS OF MEASUREMENTS: Temperature Relative humidity www.vishay.com 4 (23 ± 3)°C, for reference measurements (20 ± 1)°C ≤ 75% For technical questions, contact [email protected] Document Number: 22071 Revision 12-Oct-04 General Information Vishay Draloric Ceramic RF-Power Capacitors DISSIPATION FACTOR: The dissipation factor TAN δ is the effective to reactive ratio at a sinusoidal voltage of predetermined frequency. This ratio is dependant upon the dielectric material as well as on temperature and frequency. The curves below show the dissipation factor as a function of frequency and temperature for the preferred ceramic materials. ] 10 1.0 -3 DISSIPATION FACTOR [10 DISSIPATION FACTOR [10 -3 ] CLASS 1-CERAMIC DIELECTRIC (R 7, R 16, R 42 and R 85 typical) 5 2 1 0.5 0.2 0.5 0.1 102 103 104 105 106 107 0 - 20 108 0 20 FREQUENCY [Hz] 40 60 80 100 TEMPERATURE [ºC] DISSIPATION FACTOR (10-3) 20 DISSIPATION FACTOR (10-3) DISSIPATION FACTOR (10-3) CLASS 2-CERAMIC DIELECTRIC R 1400 10 R 700 6 4 2 1 102 103 104 FREQUENCY (Hz) 105 106 R 2000 to R 6000 20 10 8 6 4 102 103 104 105 106 FREQUENCY (Hz) R 700 R 2000, R 2005, R 3500 R 1400 30 20 15 25 15 10 20 10 15 5 5 10 5 -60 -40 -20 0 20 40 60 80 100 0 -60 -40 -20 0 20 40 60 80 100 0 -60 -40 TEMPERATURE RANGE (°C) TEMPERATURE RANGE (°C) 25 30 25 20 25 20 15 20 15 10 15 10 5 -20 0 20 40 60 80 100 TEMPERATURE RANGE (°C) Document Number: 22071 Revision 12-Oct-04 0 0 20 40 60 80 100 R 6000, R 2000 H 30 5 -60 -40 -20 TEMPERATURE RANGE (°C) R 4000 R 3000 DISSIPATION FACTOR (10-3) 100 80 60 40 R 6000 : DF (10 - 3) -4 10 R 2000 H : DF (10 ) -60 -40 -20 0 20 40 60 80 100 TEMPERATURE RANGE (°C) For technical questions, contact [email protected] 5 -60 -40 -20 0 20 40 60 80 100 TEMPERATURE RANGE (°C) www.vishay.com 5 General Information Vishay Draloric Ceramic RF-Power Capacitors DISSIPATION FACTOR - MEASURING CONDITIONS: The dissipation factor of all Ceramic RF-Power Capacitors - except where deviations are agreed upon in the ordering procedure - are measured under the following conditions. MEASURING FREQUENCY: Class 1-Ceramic dielectric (C < 1000pF): (1 ± 0.2) MHz or (100 ± 20) KHz Class 1-Ceramic dielectric (C ≥ 1000pF): (300 ± 50) KHz Class 2-Ceramic dielectric: (1 ± 0.2) KHz (Field strength max. 3KVRMS per millimeter) MEASURING VOLTAGE: Class 1-Ceramic dielectric Class 2-Ceramic dielectric ≤ 10VRMS ≤ 5VRMS CLIMATIC CONDITIONS OF MEASUREMENTS: Temperature Relative humidity (23 ± 3)°C, for reference measurements (20 ± 1)°C ≤ 75% CAPACITANCE “AGEING” OF CERAMIC CAPACITORS: Following the final heat treatment, all Class 2 ceramic capacitors reduce their capacitance value approximately according to a logarithmic law due to their special crystaline construction. This change is called “ageing”. If the capacitors are heat treated for example when soldering, the capacity increases again to a higher value and the ageing process begins again. (Note: The level of this de-ageing is dependant on the temperature and the duration of the heat; an almost complete de-ageing is achieved at 150°C in one hour: These conditions also form the basis for reference measurements when testing). The capacitance change per time decade (ageing constant) differs with the various types of ceramic but typical values can be taken from the table below. CERAMIC DIELECTRIC R 700 R 1400 R 2000 R 2000H R 2005 R 3500 R 4000 R 6000 AGEING CONSTANT(K) - 1% - 2% - 2% - 3% - 3% - 3% - 4% - 4% CERAMIC DIELECTRIC X7R Y5U Z5U AGEING CONSTANT(K) - 3% - 3% - 5% K= 100 • (Ct1 - Ct2) Ct1 • log10 t1 t2 Ct = C1000 • (1 - k • log10 t) 100 Ct = Capacitance after start of aging (pF) C1000 = Capacitance 1000 hours after start of aging (pF) k = Ageing constant per decade (%) t = Time passed since start of aging (h) REFERENCE MEASUREMENT: Due to ageing, it is necessary to quote an age for reference measurements which can be related to the capacitance with fixed tolerance. According to EN 130700, this time period is 1000 hours. If the shelf-life of the capacitor is known, the capacitance for t = 1000hours can be calculated with the ageing constant. In order to avoid the influence of the ageing, it is important to deage the capacitors before stress-testing. The following protection is adopted (see also EN 130700): De-ageing at 150°C, 1 hour Storage for 24 hours at normal climate temperature Initial measurement Stress De-ageing at 150°C, 1 hour Storage for 24 hours at normal climate temperature Final measurement www.vishay.com 6 For technical questions, contact [email protected] Document Number: 22071 Revision 12-Oct-04 General Information Vishay Draloric Ceramic RF-Power Capacitors OPERATION CONDITIONS: The user should ensure that the permissible operating conditions are not exceeded. voltage the following subjects should be taken in consideration. • • • • Concerning the applied maximum Harmonic modulation and parasitic frequencies Transient over-voltages Differences in capacitance and distribution of power when capacitors connected in series Assymetric HF fields Concerning over-heating, the following subjects should be taken into consideration: • • • • Ambient temperature and radiation from other heat sources Differences in capacitance and distribution of power when capacitors connected in series RF induction fields and parasitic currents Humidity, condensation, moisture deposit MOUNTING The user should take care in the mechanical mounting to ensure that mechanical and thermal stresses are minimized. The 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 components. The capacitor elements must not be used as a mechanical support for other devices or components. For further mounting guidelines see on the individual datasheets. SOLDERING RECOMMENDATIONS (CAPACITORS WITH LEADS) Mounting of the component should be achieved using SN 60/40 or silver bearing SN 62/36/2AG solder, whereby solder wire, cream or preforms are acceptable. Only a mildly active, resin flux should be used. We recommend the use of a heat sink adjacent to the component body, if possible. As ceramic capacitors are very sensitive to rapid changes in temperature (thermal shock), a pre-heat and post-heat cycle is strongly recommended. Both the component and ground plate should be heated up to 120°C (Heat must not be applied directly to the ceramic body and the temperature on the component surface should not be allowed to increase faster than 100°C per minute). After the pre-heat cycle, the mounting plate temperature should be raised to achieve solder flow. The solder flow state should be maintained for a minimum period (recommendation: less than 5s) and the tip temperature should be maintained for a minimum period (recommendation: less than 5s) and the tip temperature should be as low as possible (max. 260°C). The assembly should be allowed to cool at a rate not exceeding 100°C per minute. SOLDERING SPECIFICATIONS Soldering test for capacitors with wire leads: (according to IEC 60068-2-20, solder bath method) SOLDERABILITY RESISTANCE TO SOLDERING HEAT Soldering Temperature (235 ± 5)˚C (260 ± 5)˚C Soldering Duration (2 ± 0.5) sec (10 ± 1) sec ≥ 2mm ≥ 5mm Distance from Component Body CLEANING The components should be cleaned with vapor degreasers, immediately following the soldering operation. Document Number: 22071 Revision 12-Oct-04 For technical questions, contact [email protected] www.vishay.com 7 General Information Vishay Draloric Ceramic RF-Power Capacitors CERAMIC MATERIALS: Ceramic dielectrics are inorganic materials, sintered at temperatures above 1000°C, and developed especially for the manufacture of capacitors. Ceramic RF-power capacitors are subdivided into two classes, in accordance with recomendations of IEC (International Electrotechnical Commission) with respect to the chemical composition of the dielectric and electrical characteristics. Class 1 or low-K (NDK) are mainly manufactured of titanium dioxide or magnesium silicate. Class 2 or high-K capacitors (HDK) contain mostly alkaline earth titanates. Listed in the tables below are general physical and electrical characteristics of the ceramic dielectric used. CLASS 1 CERAMIC MATERIALS ABBREVIATION FOR DIELECTRIC R7 R 16 R 16 HIGH Q NP 0 R 42 Relative Dielectric Constant ~7 ~ 16 ~ 17 ~ 32 ~ 40 C 221 C 320 C 320 C 320 C 331 + 130 + 70 + 130 + 70 + 115 + 85 - 30 + 30 - 200 - 300 [∈r] Ceramic Type According to IEC 60672-3 Temperature Coefficient of the Capacitance [10-6/K] Dissipation Factor [10-3] ≤ 0.5 [1MHz] ≤ 0.4 [1MHz] ≤ 0.15 [1MHz] ≤5 [1MHz] ≤ 0.5 [1MHz] Insulation Resistance [Ω] ≥ 1010 ≥ 1010 ≥ 1011 ≥ 1010 ≥ 1010 - 55 to + 100 - 55 to + 100 - 55 to + 100 - 55 to + 85 - 55 to + 100 75% 75% 75% 75% 75% R 85 (N 750) R 230 N 2200 N 3300 N 5600 ~ 90 ~ 230 ~ 225 ~ 310 ~ 475 C 310 C 340 C 340 C 340 C 340 - 650 - 850 - 750 - 1000 - 1700 - 2700 - 2800 - 3800 - 4600 - 6600 Permissible Temperature Range [°C] Max. Relative Air Humidity [%] CLASS 1 CERAMIC MATERIALS ABBREVIATION FOR DIELECTRIC Relative Dielectric Constant [∈ r] Ceramic Type according to IEC 60672-3 Temperature Coefficient of the Capacitance [10-6/K] Dissipation Factor [10-3] ≤ 0.5 [1MHz] ≤ 0.5 [1MHz] ≤1.5 [1MHz] ≤2 [1MHz] ≤2 [1MHz] Insulation Resistance [Ω] ≥ 1010 ≥ 1010 ≥ 1010 ≥ 1010 ≥ 1010 - 55 to + 100 - 25 to + 100 - 55 to + 100 - 25 to + 85 - 25 to + 85 75% 75% 75% 75% 75% Permissible Temperature Range [°C] Max. Relative Air Humidity www.vishay.com 8 [%] For technical questions, contact [email protected] Document Number: 22071 Revision 12-Oct-04 General Information Vishay Draloric Ceramic RF-Power Capacitors CLASS 2 CERAMIC MATERIALS ABBREVIATION FOR DIELECTRIC R 700 R 1400 R 2000 R 2000 H Relative Dielectric Constant ~ 720 ~ 1500 ~ 2200 ~ 2200 C 350 C 350 C 351 C 351 * * * * [ ∈ r] Ceramic Type According to IEC 60672-3 Temperature Dependance Dissipation Factor [10-3] ≤ 25 [1KHz] ≤ 25 [1KHz] ≤ 25 [1KHz] ≤5 [1KHz] Insulation Resistance [Ω] ≥ 1010 ≥ 1010 ≥ 1010 ≥ 1010 Permissible Temperature Range [°C] - 25 to + 85 - 25 to + 85 - 25 to + 85 - 25 to + 85 Max. Relative Air Humidity [%] 75% 75% 75% 75% ABBREVIATION FOR DIELECTRIC R 2005 R 3500 R 4000 R 6000 Relative Dielectric Constant ~ 2600 ~ 3600 ~ 3800 ~ 6300 C 351 KER 350 C 351 C 351 * * * * [ ∈r ] Ceramic Type According to IEC 60672-3 Temperature Dependance Dissipation Factor [10-3] ≤ 25 [1KHz] ≤ 25 [1KHz] ≤ 25 [1KHz] ≤ 25 [1KHz] Insulation Resistance [Ω] ≥ 1010 ≥ 5 • 109 ≥ 5 • 109 ≥ 5 • 109 Permissible Temperature Range [°C] - 25 to + 85 - 25 to + 85 - 25 to + 85 - 25 to + 85 Max. Relative Air Humidity [%] 75% 75% 75% 75% ABBREVIATION FOR DIELECTRIC X7R Y5U Z5U ˜ 4500 ˜ 8500 ˜ 5000 Ceramic Type According to EIA 198 II III III Temperature Dependance * * * Relative Dielectric Constant [ ∈ r] Dissipation Factor [10-3] ≤ 20 [1KHz] ≤ 20 [1KHz] ≤ 20 [1KHz] Insulation Resistance [Ω] ≥ 1011 ≥ 1011 ≥ 1011 Permissible Temperature Range [°C] - 30 to + 85 - 30 to + 85 - 30 to + 85 * See curves on next page for temperature dependance of capacitance for these Class 2 ceramic materials. Document Number: 22071 Revision 12-Oct-04 For technical questions, contact [email protected] www.vishay.com 9 General Information Vishay Draloric Ceramic RF-Power Capacitors TEMPERATURE DEPENDENCY OF THE CAPACITANCE WITH CLASS 2 CAPACITORS C20: Capacitance at 20°C without DC Measuring frequency: 1KHz Measuring voltage: ≤ 1.2VRMS R 700 R 1400 20 20 10 10 0 0 - 10 - 10 - 20 -60 -40 -20 0 20 40 60 80 100 120 - 20 -60 -40 TEMPERATURE RANGE δ [°C] -20 R 2000 20 20 10 0 0 - 20 - 10 - 40 -40 -20 0 20 40 60 80 100 120 - 20 -60 -40 -20 0 (%) Relative Capacitance Change ∆C C20 60 80 100 120 20 40 60 80 100 120 80 100 120 80 100 120 85 105 125 R 3500 R 2000 H 300 0 200 - 20 100 - 40 0 - 60 - 100 - 80 -60 -40 -20 0 20 40 60 80 100 120 -60 -40 TEMPERATURE RANGE δ [°C] -20 0 20 40 60 TEMPERATURE RANGE δ [°C] R 4000 R 6000 0 20 0 - 20 - 20 - 40 - 40 - 60 - 60 - 80 - 80 -60 -40 -20 0 20 40 60 80 100 -60 120 -40 -20 0 20 40 60 TEMPERATURE RANGE δ [°C] TEMPERATURE RANGE δ [°C] X7R Y5U 10 (%) 40 TEMPERATURE RANGE δ [°C] TEMPERATURE RANGE δ [°C] + 20 0 0 - 20 - 10 Relative Capacitance Change ∆C C25 20 R 2005 40 -60 0 TEMPERATURE RANGE δ [°C] - 40 - 20 - 60 - 80 - 30 - 55 - 35 - 15 +5 25 45 65 85 105 125 85 105 125 TEMPERATURE RANGE δ [°C] - 55 - 35 - 15 +5 25 45 65 TEMPERATURE RANGE δ [°C] Z5U + 20 0 - 20 - 40 - 60 - 80 - 55 - 35 www.vishay.com 10 - 15 +5 25 45 65 TEMPERATURE RANGE δ [°C] For technical questions, contact [email protected] Document Number: 22071 Revision 12-Oct-04 General Information Vishay Draloric Ceramic RF-Power Capacitors DC-VOLTAGE DEPENDENCY OF CAPACITANCE (TYPICAL VALUES) Relative Capacitance Change ∆C (%) C0 The capacitance of Class 1 capacitors scarcely changes when DC-voltage is applied. The relative capacitance change of Class 2 ceramic dielectric vs. applied field strength is given in the curves below.. R 700 R 1400 10 0 - 10 - 20 - 30 - 40 - 50 - 60 - 70 - 80 10 0 - 10 - 20 - 30 - 40 - 50 - 60 - 70 - 80 10 0 - 10 - 20 - 30 - 40 - 50 - 60 - 70 - 80 0 1000 2000 3000 4000 0 Relative Capacitance Change ∆C (%) C0 V FIELD STRENGTH E [ mm ] R 2005 2000 3000 4000 1000 2000 3000 4000 0 1000 2000 3000 4000 3000 4000 3000 4000 0 1000 2000 3000 4000 Percent Capacitance Decrease Z5U 20 30 40 50 75 PERCENT RATED D.C. VOLTAGE Document Number: 22071 Revision 12-Oct-04 2000 V FIELD STRENGTH E [ mm ] 10 50 1000 C0: Capacitance without DC-voltage Measuring frequency: 1KHz Temp. of measurement: (23 ± 3)°C Measuring voltage: ≤ 1.2VRMS Capacitance Decrease vs.D-C Voltage Bias X75, Y5U 25 0 R 6000 V FIELD STRENGTH E [ mm ] 0 4000 V FIELD STRENGTH E [ mm ] 10 0 - 10 - 20 - 30 - 40 - 50 - 60 - 70 - 80 2000 3000 R 3500 V FIELD STRENGTH E [ mm ] 10 0 - 10 - 20 - 30 - 40 - 50 - 60 - 70 - 80 1000 2000 10 0 - 10 - 20 - 30 - 40 - 50 - 60 - 70 - 80 R 4000 0 1000 V FIELD STRENGTH E [ mm ] 10 0 - 10 - 20 - 30 - 40 - 50 - 60 - 70 - 80 0 0 R 2000H 10 0 - 10 - 20 - 30 - 40 - 50 - 60 - 70 - 80 (%) Relative Capacitance Change ∆C C0 1000 V FIELD STRENGTH E [ mm ] V FIELD STRENGTH E [ mm ] Percent Capacitance Decrease R 2000 100 10 20 30 40 50 0 25 50 75 100 PERCENT RATED D.C. VOLTAGE For technical questions, contact [email protected] www.vishay.com 11 General Information Vishay Draloric Ceramic RF-Power Capacitors QUALITY CONTROL AND TESTING: The quality of our RF-power capacitors is assured by numerous tests carried out at every stage of production. The finished capacitors are subjected to the individual 100% tests given below. CAPACITANCE: Class 1 ceramics at 0.1MHz, with 20VRMS, (25 ± 5)°C Class 2 ceramics at 1KHz,with ≤ 5VRMS, (25 ± 5)°C DISSIPATION FACTOR : Class 1 ceramics (CR < 1000pF) at 1MHz, with 10VRMS, (25 ± 5)°C Class 1 ceramics (CR ≥ 1000pF) at 300KHz, with 10VRMS, (25 ± 5)°C Class 2 ceramics at 1KHz, with ≤ 5VRMS, (25 ± 5)°C INSULATION RESISTANCE: at 100VDC, (25 ± 5)°C DIELECTRIC WITHSTANDING: Standard test with 200% UR, AC 50Hz, 5 minutes. (As repeated test admissable only once with a step-up voltage reduced by 10% for three minutes). RF-HEATING TEST This 100% test is carried out with Watercooled Pot Capacitors, Multilayer Power Capacitors and those components made from R 230 dielectric only. The units are tested in the tank circuit of a RF-test generator with at least 130% to 150% rated power for 5 to 10 minutes. For all other types, this RF-power test is subject to special agreement. For details of Watercooled Capacitors see individual datasheets. VISUAL CONTROL AND DIMENSIONS: OUTLINE DRAWINGS: All dimensions are given in millimeters and inches (in brackets). As a result of continual efforts to improve mechanical design, components supplied may vary in detail from those described or illustrated in the outline drawings of this catalog. STANDARDS AND SPECIFICATIONS: GENERAL STANDARDS IEC 60062 Marking codes for resistors and capacitors IEC 60068 Basic environmental testing procedures SPECIAL STANDARDS FOR CERAMIC CAPACITORS EN 130600 and IEC 60384-8 Fixed capacitors of ceramic dielectric, Class 1 EN 130700 and IEC 60384-9 Fixed capacitors of ceramic dielectric, Class 2 www.vishay.com 12 For technical questions, contact [email protected] Document Number: 22071 Revision 12-Oct-04