Surface Mount Aluminum Electrolytic Capacitors EDH, +105°C Overview Applications The KEMET EDH aluminum electrolytic surface mount capacitors are designed for high density printed circuit boards. Typical applications include audio/visual (AV), computer/ monitor, communications, and switch mode power supplies (SMPS).
Surface Mount Aluminum Electrolytic Capacitors – EDH, +105°C Dimensions – Millimeters C D P G B L W A F E Size Code 9B 9D 9G 9H 9M 9P 9R 9S Size Code 9B 9D 9G 9H 9M 9P 9R 9S D L A/B E C E Nominal Tolerance Nominal Tolerance Nominal Tolerance Nominal Tolerance Nominal Tolerance 4.0 5.0 6.3 6.3 8.0 10.0 12.5 12.5 ±0.5 ±0.5 ±0.5 ±0.5 ±0.5 ±0.5 ±0.5 ±0.5 5.4 5.4 5.4 7.7 10.2 10.2 13.5 16.0 +0.25/−0.1 +0.25/−0.1 +0.25/−0.1 ±0.3 ±0.3 ±0.3 ±0.5 ±0.5 4.3 5.3 6.6 6.6 8.3 10.3 12.
Surface Mount Aluminum Electrolytic Capacitors – EDH, +105°C Environmental Compliance As an environmentally conscious company, KEMET is working continuously with improvements concerning the environmental effects of both our capacitors and their production. In Europe (RoHS Directive) and in some other geographical areas like China, legislation has been put in place to prevent the use of some hazardous materials, such as lead (Pb), in electronic equipment.
Surface Mount Aluminum Electrolytic Capacitors – EDH, +105°C Compensation Factor of Ripple Current (RC) vs. Frequency Frequency Coefficient 60 Hz 120 Hz 1 kHz 10 kHz 0.85 1.00 1.15 1.
Surface Mount Aluminum Electrolytic Capacitors – EDH, +105°C Table 1 – Ratings & Part Number Reference VDC VDC Surge Voltage Rated Capacitance 120 Hz 20°C (µF) Case Size D x L (mm) DF 120 Hz 20°C (tan δ %) RC 120 Hz 105°C (mA) LC 20°C 2 minutes (µA) Part Number 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.
Surface Mount Aluminum Electrolytic Capacitors – EDH, +105°C Table 1 – Ratings & Part Number Reference cont’d VDC VDC Surge Voltage Rated Capacitance 120 Hz 20°C (µF) Case Size D x L (mm) DF 120 Hz 20°C (tan δ %) RC 120 Hz 105°C (mA) LC 20°C 2 minutes (µA) Part Number 25 35 35 35 35 35 35 35 35 35 35 35 35 35 35 35 35 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 63 63 63 63 63 63 63 63 100 100 100 100 100 100 160 160 160 200 200 200 200 250 250 250 32 44 44 44 44 44 44 44 44 44 44 44 44 4
Surface Mount Aluminum Electrolytic Capacitors – EDH, +105°C Table 1 – Ratings & Part Number Reference cont’d VDC VDC Surge Voltage Rated Capacitance 120 Hz 20°C (µF) Case Size D x L (mm) DF 120 Hz 20°C (tan δ %) RC 120 Hz 105°C (mA) LC 20°C 2 minutes (µA) Part Number 250 250 250 400 400 400 400 400 450 450 450 450 300 300 300 450 450 450 450 450 500 500 500 500 22 33 47 3.3 4.7 10 22 33 3.3 4.7 10 22 12.5 x 13 16 x 16.5 16 x 16.5 12.5 x 13 12.5 x 13 12.5 x 13 16 x 16.5 16 x 16.5 12.5 x 13 12.
Surface Mount Aluminum Electrolytic Capacitors – EDH, +105°C Mounting Positions (Safety Vent) In operation, electrolytic capacitors will always conduct a leakage current, which causes electrolysis. The oxygen produced by electrolysis will regenerate the dielectric layer but, at the same time, the hydrogen released may cause the internal pressure of the capacitor to increase. The overpressure vent, or safety vent, ensures that the gas can escape when the pressure reaches a certain value.
Surface Mount Aluminum Electrolytic Capacitors – EDH, +105°C Application and Operation Guidelines Electrical Ratings: Capacitance (ESC) Simplified equivalent circuit diagram of an electrolytic capacitor The capacitive component of the equivalent series circuit, (equivalent series capacitance - ESC), is determined by applying an alternate voltage of ≤ 0.5 V at a frequency of 120 or 100 Hz and 20°C (IEC 384-1, 384-4).
Surface Mount Aluminum Electrolytic Capacitors – EDH, +105°C Equivalent Series Inductance (ESL) Equivalent series inductance or self inductance results from the terminal configuration and internal design of the capacitor. Capacitor Equivalent Internal Circuit Equivalent Series Capacitance (ESC) Equivalent Series Resistance (ESR) Equivalent Series Inductance (ESL) Co Re L Equivalent Series Resistance (ESR) Equivalent series resistance is the resistive component of the equivalent series circuit.
Surface Mount Aluminum Electrolytic Capacitors – EDH, +105°C Impedance (Z) cont’d Z [ohm ] 1,000 100 1/ω ω Ce 10 B Re 1 0.1 ωL A 1/ω ω Co 0.1 1 10 C 100 1,000 10,000 F [K Hz] • Capacitive reactance predominates at low frequencies.
Surface Mount Aluminum Electrolytic Capacitors – EDH, +105°C Leakage Current (LC) Due to the aluminum oxide layer that serves as a dielectric, a small current will continue to flow even after a DC voltage has been applied for long periods. This current is called leakage current. A high leakage current flows after applying voltage to the capacitor then decreases in a few minutes, for example, after prolonged storage without any applied voltage.
Surface Mount Aluminum Electrolytic Capacitors – EDH, +105°C Frequency Dependence of the Ripple Current ESR and, thus, the tan δ depend on the frequency of the applied voltage. This indicates that the allowed ripple current is also a function of the frequency. Temperature Dependence of the Ripple Current The data sheet specifies maximum ripple current at the upper category temperature for each capacitor.
Surface Mount Aluminum Electrolytic Capacitors – EDH, +105°C Packaging Quantities Size Code Diameter (mm) Length (mm) Reel Quantity Box Quantity (4 Reels per box) 9B 9D 9G 9H 9M 9P 9R 9S 4.0 5.0 6.3 6.3 8.0 10.0 12.5 12.5 5.4 5.4 5.4 7.7 10.2 10.2 13.5 16.
Surface Mount Aluminum Electrolytic Capacitors – EDH, +105°C Construction Aluminum Can Lead Terminal Tabs Detailed Cross Section Rubber Seal Terminal Tab Rubber Seal Margin Aluminum Can Paper Spacer Impregnated with Electrolyte (First Layer) Anode Aluminum Foil, Etched, Covered with Aluminum Oxide (Second Layer) Paper Spacer Impregnated with Electrolyte (Third Layer) Cathode Aluminum Foil, Etched (Fourth Layer) © KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard Fort Lauderdal
Surface Mount Aluminum Electrolytic Capacitors – EDH, +105°C Soldering Process The soldering conditions should be within the specified conditions below: Do not dip the capacitor body into the melted solder. Flux should only be applied to the capacitor terminals. Temperature of capacitor terminal (°C) T3 T2 T3 Pre-heat T1 T0 Time (seconds) Vapor heat transfer systems are not recommended.
Surface Mount Aluminum Electrolytic Capacitors – EDH, +105°C Lead Taping & Packaging Case Size (mm) 4 x 5.4 5 x 5.4 6.3 x 5.4 6.3 x 7.7 8 x 6.2 8 x 10.2 10 x 10.2 12.5 x 13.5 12.5 x 16 16 x 16.5 D Reel H W ±0.2 ±0.8 ±1.
Surface Mount Aluminum Electrolytic Capacitors – EDH, +105°C Construction Data The manufacturing process begins with the anode foil being electrochemically etched to increase the surface area and then “formed” to produce the aluminum oxide layer. Both the anode and cathode foils are then interleaved with absorbent paper and wound into a cylinder. During the winding process, aluminum tabs are attached to each foil to provide the electrical contact.
Surface Mount Aluminum Electrolytic Capacitors – EDH, +105°C KEMET Electronics Corporation Sales Offices For a complete list of our global sales offices, please visit www.kemet.com/sales. Disclaimer All product specifications, statements, information and data (collectively, the “Information”) in this datasheet are subject to change.
