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PEH200PV5470MB2 Datasheet(PDF) 9 Page - Kemet Corporation |
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PEH200PV5470MB2 Datasheet(HTML) 9 Page - Kemet Corporation |
9 / 13 page 9 © KEMET Electronics Corporation • P.O. Box 5928 • Greenville, SC 29606 (864) 963-6300 • www.kemet.com A4034_PEH200 • 3/30/2016 Screw Terminal Aluminum Electrolytic Capacitors – PEH200 Series, +85°C Mechanical Data Polarity and Reversed Voltage Aluminium Electrolytic capacitors manufactured for use in DC applications contain an anode foil and a cathode foil. As such, they are polarized devices and must be connected with the +ve to the anode foil and the -ve to the cathode foil. If this were to be reversed then the electrolytic process that took place in forming the oxide layer on the anode would be recreated in trying to form an oxide layer on the cathode. In forming the cathode foil in this way, heat would be generated and gas given off within the capacitor, usually leading to catastrophic failure. The cathode foil already possesses a thin stabilized oxide layer. This thin oxide layer is equivalent to a forming voltage of approximately 2 V. As a result, the capacitor can withstand a voltage reversal of up to 2 V for short periods. Above this voltage, the formation process will commence. Aluminium Electrolytic capacitors can also be manufactured for use in intermittent AC applications by using two anode foils in place of one anode and one cathode. Mounting Position The capacitor can be mounted upright or inclined to a horizontal position. Clamp Fixing Clips must be ordered separately. Stud Fixing Nylon cap nut must be ordered separately. For the stud fixing insulated version, the outer insulation serves as lock washer. Maximum tightening torque: M8 = 3 Nm M12= 8 Nm Maximum chassis thickness 5 mm. Screw Terminals M5 x 10 according to DIN 41.248. Maximum tightening torque = 2.5 Nm. Must be ordered separately. Recommended maximum connector thickness with delivered screw = 4 mm. M6 thread upon request. Insulating Cup PEH200 is supplied with a 0.8 mm thick polypropylene insulating cup. Voltage proof of the insulating cup: ≥ 4,000 VDC |
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