Aluminum Electrolytic Capacitor — High Frequency Low ESR, 25V–450V, 68μF–10000μF

Aluminum Electrolytic Capacitor — High Frequency / Low ESR, 25V–450V, 68μF–10000μF

These high-frequency, low-ESR aluminum electrolytic capacitors are engineered for demanding power electronics applications where standard general-purpose capacitors fall short. With a wide voltage range of 25V to 450V and capacitance options from 68μF to 10000μF, they are the go-to choice for switching power supply (SMPS) output filters, audio amplifier power stages, motor drive inverters, and industrial control circuits.

Key Specifications

Parameter	Value
Type	Aluminum Electrolytic, Radial Lead
Voltage Range	25V, 35V, 50V, 63V, 100V, 160V, 200V, 250V, 400V, 450V
Capacitance Range	68μF – 10000μF
ESR	Low ESR (high-frequency grade)
Frequency Rating	High frequency (suitable for 10kHz–500kHz SMPS)
Temperature Rating	105°C (standard high-temp grade)
Lead Style	Radial (through-hole)
Compliance	RoHS compliant
Origin	CN

Why Choose Low ESR / High Frequency Capacitors?

• Low ESR reduces heat generation — Standard electrolytic capacitors have high ESR that causes resistive heating at switching frequencies; low-ESR types run cooler and last longer
• Better ripple current handling — High-frequency grade capacitors tolerate higher ripple currents without degradation, critical for SMPS output stages
• 105°C rated — Extended temperature rating vs standard 85°C capacitors; suitable for high-ambient-temperature environments such as enclosed power supplies and automotive electronics
• Wide voltage selection — 25V to 450V covers everything from 5V USB power supplies to 400V AC mains rectifier bulk capacitors
• RoHS compliant — Meets EU RoHS Directive requirements for lead-free electronics manufacturing

Typical Applications

• SMPS (switching mode power supply) output filter capacitors
• PFC (power factor correction) bulk capacitors at 400V–450V
• Audio amplifier power supply decoupling and filter stages
• Motor drive and VFD (variable frequency drive) DC bus capacitors
• LED driver and lighting power supply circuits
• Arduino, Raspberry Pi, and embedded system power rail decoupling
• UPS and battery charger filter stages

Compatible With / Replaces

• Replaces standard 85°C general-purpose electrolytic capacitors in any application (direct upgrade)
• Compatible with: Nichicon UHE/UHW series, Panasonic FR/FM series, Rubycon ZLH/ZL series (equivalent grade)
• Suitable for: ATX power supplies, laptop charger repair, amplifier recap, industrial inverter maintenance

Frequently Asked Questions

Q: What does “low ESR” mean and why does it matter?

ESR (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.

Q: Can I use a higher voltage rating than required?

Yes. 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.

Q: What is the difference between high-frequency and standard electrolytic capacitors?

Standard 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.

Package Contents

• Aluminum electrolytic capacitor(s) per selected variant (voltage and capacitance)

Please select your required voltage and capacitance from the variant options.

Enjoy free standard shipping on all orders over $199 USD. Orders are processed within 1–2 business days.

Not satisfied? Return any item within 90 days of purchase for a full refund or exchange. Items must be in original condition.

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