{"product_id":"aluminum-electrolytic-capacitor-high-freq-low-esr-25v-450v","title":"Aluminum Electrolytic Capacitor — High Frequency Low ESR, 25V–450V, 68μF–10000μF","description":"\u003ch2\u003eAluminum Electrolytic Capacitor — High Frequency \/ Low ESR, 25V–450V, 68μF–10000μF\u003c\/h2\u003e\n\u003cp\u003eThese \u003cstrong\u003ehigh-frequency, low-ESR aluminum electrolytic capacitors\u003c\/strong\u003e are engineered for demanding power electronics applications where standard general-purpose capacitors fall short. With a wide voltage range of \u003cstrong\u003e25V to 450V\u003c\/strong\u003e and capacitance options from \u003cstrong\u003e68μF to 10000μF\u003c\/strong\u003e, they are the go-to choice for switching power supply (SMPS) output filters, audio amplifier power stages, motor drive inverters, and industrial control circuits.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eAluminum Electrolytic, Radial Lead\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eVoltage Range\u003c\/td\u003e\n\u003ctd\u003e25V, 35V, 50V, 63V, 100V, 160V, 200V, 250V, 400V, 450V\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eCapacitance Range\u003c\/td\u003e\n\u003ctd\u003e68μF – 10000μF\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eESR\u003c\/td\u003e\n\u003ctd\u003eLow ESR (high-frequency grade)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eFrequency Rating\u003c\/td\u003e\n\u003ctd\u003eHigh frequency (suitable for 10kHz–500kHz SMPS)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eTemperature Rating\u003c\/td\u003e\n\u003ctd\u003e105°C (standard high-temp grade)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eLead Style\u003c\/td\u003e\n\u003ctd\u003eRadial (through-hole)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eCompliance\u003c\/td\u003e\n\u003ctd\u003eRoHS compliant\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eCN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eWhy Choose Low ESR \/ High Frequency Capacitors?\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLow ESR reduces heat generation\u003c\/strong\u003e — Standard electrolytic capacitors have high ESR that causes resistive heating at switching frequencies; low-ESR types run cooler and last longer\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBetter ripple current handling\u003c\/strong\u003e — High-frequency grade capacitors tolerate higher ripple currents without degradation, critical for SMPS output stages\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e105°C rated\u003c\/strong\u003e — Extended temperature rating vs standard 85°C capacitors; suitable for high-ambient-temperature environments such as enclosed power supplies and automotive electronics\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide voltage selection\u003c\/strong\u003e — 25V to 450V covers everything from 5V USB power supplies to 400V AC mains rectifier bulk capacitors\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRoHS compliant\u003c\/strong\u003e — Meets EU RoHS Directive requirements for lead-free electronics manufacturing\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eTypical Applications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eSMPS (switching mode power supply) output filter capacitors\u003c\/li\u003e\n  \u003cli\u003ePFC (power factor correction) bulk capacitors at 400V–450V\u003c\/li\u003e\n  \u003cli\u003eAudio amplifier power supply decoupling and filter stages\u003c\/li\u003e\n  \u003cli\u003eMotor drive and VFD (variable frequency drive) DC bus capacitors\u003c\/li\u003e\n  \u003cli\u003eLED driver and lighting power supply circuits\u003c\/li\u003e\n  \u003cli\u003eArduino, Raspberry Pi, and embedded system power rail decoupling\u003c\/li\u003e\n  \u003cli\u003eUPS and battery charger filter stages\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatible With \/ Replaces\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eReplaces standard 85°C general-purpose electrolytic capacitors in any application (direct upgrade)\u003c\/li\u003e\n  \u003cli\u003eCompatible with: Nichicon UHE\/UHW series, Panasonic FR\/FM series, Rubycon ZLH\/ZL series (equivalent grade)\u003c\/li\u003e\n  \u003cli\u003eSuitable for: ATX power supplies, laptop charger repair, amplifier recap, industrial inverter maintenance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eQ: What does “low ESR” mean and why does it matter?\u003c\/h3\u003e\n\u003cp\u003eESR (Equivalent Series Resistance) is the internal resistance of a capacitor. In switching power supplies operating at 20kHz–500kHz, high ESR causes the capacitor to dissipate power as heat, reducing efficiency and lifespan. Low-ESR capacitors minimize this effect, improving SMPS efficiency and extending capacitor life significantly.\u003c\/p\u003e\n\n\u003ch3\u003eQ: Can I use a higher voltage rating than required?\u003c\/h3\u003e\n\u003cp\u003eYes. Using a capacitor with a higher voltage rating than the circuit requires is safe and often beneficial — it provides additional voltage margin and typically results in lower ESR and longer service life. For example, using a 63V capacitor in a 48V circuit is perfectly acceptable.\u003c\/p\u003e\n\n\u003ch3\u003eQ: What is the difference between high-frequency and standard electrolytic capacitors?\u003c\/h3\u003e\n\u003cp\u003eStandard electrolytic capacitors are optimized for 50Hz\/60Hz mains frequency applications. High-frequency types use a different electrolyte formulation and construction that maintains low impedance at switching frequencies (10kHz–500kHz), making them essential for SMPS, Class D amplifiers, and PWM motor drives.\u003c\/p\u003e\n\n\u003ch2\u003ePackage Contents\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eAluminum electrolytic capacitor(s) per selected variant (voltage and capacitance)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003ePlease select your required voltage and capacitance from the variant options.\u003c\/em\u003e\u003c\/p\u003e","brand":"Keszoox","offers":[{"title":"35V10000UF 22x40 \/ CHINA","offer_id":46957171933419,"sku":"200007763:201336100;688:202862828#35V10000UF 22x40","price":33.56,"currency_code":"USD","in_stock":true},{"title":"50V4700UF 18x35 \/ CHINA","offer_id":46957170983147,"sku":"200007763:201336100;688:202862829#50V4700UF 18x35","price":23.52,"currency_code":"USD","in_stock":true},{"title":"63V680UF 13x25 \/ 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