FAQ
Yes, Surge Components provides all it’s products RoHS and Pb-Free (Lead-Free).
ESR is an abbreviation for Equivalent Series Resistance, the characteristic representing the sum of resistive (ohmic) losses within a capacitor. While ESR is undesirable, all capacitors exhibit it to some degree. Materials and construction techniques used to produce the capacitor exhibit it to some degree. Materials and construction techniques used to produce the capacitor all contribute to the component’s ESR value. ESR is a frequency dependent characteristic, so comparison between component types should be referenced to same frequency. Industry standard reference for ESR is 100 kHz at +25oC. Power dissipation within the capacitor and the effectiveness of the capacitor’s noise suppression characteristics will be related directory to the ESR value.
E-Cap is an abbreviation for Electrolytic Capacitor.. All E-Caps are polarized with anode (+) and cathode (-) terminals.
These terms (when applied to aluminum electrolytic capacitors) refer to the electrolyte type composition. The electrolyte acts as an electrical connection between the (-) cathode and the dielectric. Different forms (liquid-hybrid-solid) electrolytes have been developed over the years. Each type has benefits (PROS) and undesirable (CONS) characteristics. Development of better electrolytes has primarily focused on reducing the ESR and increasing the ripple current rating, by using higher conductivity materials. Improving the capacitor’s electrical characteristics over temperature (specifically at low temperature) and extending operational life have also been driving R&D in electrolyte development.
If you have any questions, to help you select the correct Surge product for your board, please contact us at technical@surgecomponents.com.
Put simply. The temperature rise formula is the rms AC current (ripple) squared times the ESR of the capacitor at the operating frequency divided be the thermal constant multiplied by the surface area of the capacitor. If the calculated temperature rise is greater that 10C then the capacitor is being overstressed and will eventually fail sooner than it should.
Put simply. The temperature rise formula is the rms AC current (ripple) squared times the ESR of the capacitor at the operating frequency divided be the thermal constant multiplied by the surface area of the capacitor. If the calculated temperature rise is greater that 10C then the capacitor is being overstressed and will eventually fail sooner than it should.
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THINKING BEYOND THE BOARD

Your global portal for power control components

Surge Components, Incorporated was founded in 1981, and has grown into a leading supplier of electronic component products. Surge’s current product portfolio includes aluminum electrolytic capacitors, film capacitors, MLCC, discrete semiconductors, and switches. Surge periodically adds new products to its portfolio which compliment the current lineup. Surge’s monthly production capacity is amongst the largest for these products, and Surge’s products are AECQ compliant for automotive applications. Surge is globally positioned, with sales, service, and technical support. Surge looks forward to being your supplier for capacitors, discrete semiconductors , and switches.

North America Headquarters

Surge Components Inc.

95 E. Jefryn Blvd.

Deer Park, NY 11729

Phone: 631-595-1818

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Hong Kong

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