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FAQ

Are RoHS and Pb-Free products available from Surge?

Yes, Surge Components provides all it’s products RoHS and Pb-Free (Lead-Free).

 

FAQ

What is ESR?

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.

 

FAQ

What is an E-Cap?

E-Cap is an abbreviation for Electrolytic Capacitor.. All E-Caps are polarized with anode (+) and cathode (-) terminals.

 

FAQ

What are the differences between “Liquid”, “Hybrid”, and “Solid” Type Aluminum Electrolytic Capacitors”

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.

 

FAQ

Who can I contact for technical assistance or information for Surge Component’s products?

Please email our Director of Quality Assurance Mr. Tim Chen at tchensci@yahoo.com

 

FAQ

Who do I contact for a price-delivery quote on Surge Component’s products?

Contact one of our franchised distributors at link
Contact one of our sales representatives at link
Contact Surge Component’s directly at link

 

FAQ

How can I get samples of Surge Component’s products?

On-line sample order entry at link
Or fax request (PDF form) to closest Surge Component’s office link

 

FAQ

Where can I find information on Surge Components product changes or discontinued items?

On-line product changes notices (PCNs) are posted at link
Old discontinued products and alternate – substitutions are shown in link

 

FAQ

How can I get directions to Surge Components facilities?

On-line driving directions to Surge Components (Deer Park, NY) at link

 

FAQ

Please explain for the formula for Temperature Rise within a capacitor?

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.

 

FAQ

How can I measure the ESR in a practical way?

EIA dictates that the ESR must be measured using the bridge method using a test frequency of 120 Hz or 1kHz depending on the type of capacitor so the easiest way to measure ESR is by using the LCR bridge.

 

FAQ

How can I receive a catalog?

All product data is available on this website.
Use link to receive a copy of our catalog.

 

FAQ

Where can I find Import-Export Codes for Surge Component’s Products?

Surge Components product tariff codes table & ECCN classification information are located link.