Aluminum Electrolytic Capacitor 50V 4700uF High Frequency Low ESR Low Resistance

Aluminum Electrolytic Capacitor — 50V 4700µF, High Frequency, Low ESR

A large-value aluminum electrolytic capacitor rated at 50V 4700µF with low ESR (Equivalent Series Resistance) and high-frequency optimised electrolyte. Designed for power supply bulk filtering, audio amplifier power rail decoupling, DC-DC converter output smoothing, and motor drive energy storage where high capacitance, low impedance at switching frequencies, and 105°C temperature rating are required.

Technical Specifications

Parameter	Value
Capacitance	4700µF
Rated Voltage	50V DC
Tolerance	−20% / +20% (M grade)
ESR	Low ESR (high-frequency series)
Operating Temperature	−40°C to +105°C
Lifetime	2000–5000 hours at 105°C
Lead Pitch	10mm (standard radial through-hole)
Polarity	Polarised (observe + / − marking)
Certification	RoHS

Typical Applications

• Power Supply Bulk Filter: Primary bulk capacitance on the output of linear regulators and switching power supplies to reduce output ripple voltage on 24V–48V rails
• Audio Amplifier Power Rail: Power rail decoupling for Class AB and Class D audio amplifiers — 4700µF provides energy reservoir for transient current demands during bass peaks
• DC-DC Converter Output: Output filter capacitor for 24V–48V buck, boost, and buck-boost converters to smooth switching ripple
• Motor Drive Energy Storage: Energy buffer for DC motor driver circuits to absorb back-EMF spikes and supply peak motor starting current on 24V–48V systems
• Schottky Rectifier Power Supply: Output filter capacitor in transformer-rectifier power supplies for speaker amplifiers and audio equipment
• Industrial Power Supply: Bulk capacitance in 48V industrial power supplies, UPS systems, and battery chargers

Installation Notes

• Observe polarity: The negative lead is marked with a stripe. Reverse polarity will damage the capacitor and may cause venting or rupture.
• Voltage derating: Operate at no more than 80% of rated voltage (40V for a 50V-rated capacitor) for maximum reliability
• Temperature derating: Capacitor lifetime halves for every 10°C above rated temperature — ensure adequate ventilation

FAQ

Q: Can I use this capacitor in a 36V or 48V power supply?
A: Yes. A 50V-rated capacitor is suitable for 36V (72% of rating) and 48V (96% of rating — borderline, consider a 63V-rated capacitor for 48V applications for better derating margin).

Q: What is the difference between this 50V 4700µF and the 35V 10000µF capacitor?
A: The 50V 4700µF is suited for higher-voltage, lower-capacitance applications (24V–48V rails). The 35V 10000µF provides more capacitance for lower-voltage, higher-current applications (12V–24V rails).

Package Contents

• 1 × Aluminum electrolytic capacitor 50V 4700µF (low ESR, high frequency)

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