PROTECTION Medium Power Film Capacitors FPX (FPY RoHS Compliant) PROTECTION APPLICATIONS Protection of thyristors. Protection of gate turn-off thyristor (G.T.O.). Clamping (Secondary snubber). TECHNOLOGY Metallized polypropylene dielectric capacitor with controlled self-healing. Reinforced metallization developed for high impulse currents. Axial connections specially developed to reduce series inductance and to provide rigid mechanical mounting. PACKAGING MATERIAL Cylindrical in plastic case filled with thermosetting resin. DIMENSIONS Outputs: threaded inserts either M6 or M8. Plastic Case Style M6 / 6 or M8 / 8 HOT SPOT TEMPERATURE CALCULATION Max Torque: 8.5Nm (M8) H 62 4.5Nm (M6) See Hot Spot Temperature page 3. h 2 (0.079) M6/6 or M8/8 Plastic Case = + (P + P ) x R 4 (0.16) A hot spot terminals d t th with TPC A H 0.5 P (Dielectric losses) = Q x tg d 0 (0.020) 1 2 -4 2 x C x (V ) x f x (2 x 10 ) n peak peak to Resin Tinned Output 2 P (Thermal losses) = R x (I ) t s rms Dimensions: millimeters (inches) h 2 (0.079) d General tolerance: 2 where Dmax C in Farads n Plastic Case Style M8 / 10 Vin Volts I in Amperes rms Max Torque: 8.5Nm The positions of the connections 28 (1.103) 0.1 (0.004) of each side are not indexed R in Ohms s 4 (0.16) A H 79 +0 -3.0mm Plastic Case f in Hertz (3.11 +0 -0.12) in C M8 (0.315) M8 (0.315) A /10 (0.394) /10 (0.394) D Max R in C/W th Due to the design of the capacitor and its technology, Tinned Output Resin the thermal impedance between the terminations and the core of 23 (0.906) 0.50 (0.020) Dimensions: millimeters (inches) the capacitor is low, it is necessary to take care that the capaci- General tolerance: 2 6.00 (0.236) 6.00 (0.236) tor is never overheated by use of incorrect sized connections. In the case where the series diodes are screwed to the capaci- MARKING tor, cooling of the diodes must be taken in account. Logo Do not use the capacitor as a heat sink. Withstanding surge voltage Due to the complexity of the diode/capacitor thermal exchanges, Capacitance and tolerance in clear we recommend that thermal measurements shall be made on Nominal DC voltage in clear the different components. We would be pleased to advise you on specific problems. RMS current in clear Date of manufacture (IEC coding) WORKING TEMPERATURE (according to the power to be dissipated) -40C to +85C HOW TO ORDER FPX 6 6 N 0105 J Not RoHS Compliant Series Case Size Dielectric Voltage Capacitance Capacitance Terminal Code FPX = Standard Case Size 6 6 = Polypropylene Code Code Tolerances = Standard FPY = RoHS Case Size 8 N = 2000V 0 + pF code J = 5% Compliant (See Case P = 2500V 0105 = 1.0F Style) X = 3500V 0335 = 3.5F Please select correct termination style. Z = 4500V 0504 = 0.5F Y = 4600V etc. 82 JUNE 2015 TPCMedium Power Film Capacitors FPX (FPY RoHS Compliant) ELECTRICAL CHARACTERISTICS Capacitance range C 0.5F to 6F n Tolerance on C 5% n Rated DC voltage V dc 1000 to 3000 V n Peak voltage V 1600 to 4000 V peak Allowable overvoltage V (for 10 s/day) 2000 to 4600 V s Stray inductance 5 to 20 nH RMS current I max. = up to 160 A rms The currents shown in the tables are maximum. It is necessary to respect the thermal limits of the dielectric 85C see Hot spot temperature calculation Insulation resistance R x C 30,000 s i 2 2 Impulse current I .t maxi. = up to 729 A .s Spikes or peak currents in the capacitors may cause a deterioration of the bonding between the metallization and the connections. These bonds are capable of withstanding only a limited amount of energy for each spike. The 2 table shows the maximum energy permitted in the form (I .t), where I is in Ampere, and t is in seconds. 2 Note: The formula (I .t) replaces dV/dt which is less easy to use as it is not an expression of energy (I = C.dV/dt). 2 This type of capacitor has been designed to withstand high (I .t) values. C Variation of capacitance with temperature 2% between -40 and 85C C Climatic category 40/085/56 (IEC 60068) Test voltage between terminals 25C V for 10s s Test voltage between terminals and case 25C (Type test) 7 kVrms 50 Hz for 1 min. Dielectric Polypropylene JUNE 2015 83 PROTECTION