RFA0E331MCN1GS

The RFA0E331MCN1GS is a surface-mount conductive polymer aluminum solid electrolytic capacitor offering 330 µF capacitance at a 2.5 V rating. It combines high capacitance density with low equivalent series resistance (ESR) to support demanding ripple and filtering requirements in compact electronics.

Designed for general-purpose applications, this SMD radial-can device delivers measurable benefits for power management and decoupling in designs that require high ripple capability, a wide operating temperature range (−55 °C to 105 °C) and reliable endurance up to 2000 hours at 105 °C.

Key Features

• Capacitance & Voltage — 330 µF nominal capacitance with a rated voltage of 2.5 V and tolerance of −20% to +20%.
• Conductive polymer chemistry — Solid polymer electrolyte construction for stable performance and low dissipation factor (tan δ = 0.12 at 20 °C, 120 Hz).
• Low ESR — ESR specified at 10 mΩ (20 °C / 100 kHz), enabling efficient high-frequency performance.
• High ripple capability — Rated ripple currents of 330 mA at 120 Hz and 3.3 A at 300 kHz (high-frequency rating), with a 100 kHz rated ripple current of 3300 mArms at 105 °C noted in the datasheet.
• Leakage current — Specified leakage current of 500 µA (measured after 2 minutes at 20 °C under rated voltage).
• Durability and temperature range — Endurance of 2000 hours at 105 °C and operating range from −55 °C to 105 °C.
• Compact SMD package — Case size φ5 × 5.7 mm (L × D), radial can SMD package suitable for space-constrained boards; supplied in embossed carrier taping with moisture-proof packing.
• RoHS compliant & production-ready — Conforms to RoHS requirements and is in mass production.

Typical Applications

• General-purpose power filtering — Bulk smoothing and filtering where 330 µF capacitance and low ESR (10 mΩ at 100 kHz) help stabilize low-voltage rails.
• High-frequency decoupling — Supports high-frequency ripple currents up to 3.3 A at 300 kHz, suitable for compact power stages and switching regulator outputs.
• Space-constrained SMD assemblies — Small φ5 × 5.7 mm footprint and radial-can SMD package fit compact PCB layouts while providing high capacitance.

Unique Advantages

• High capacitance in a compact SMD — 330 µF in a φ5 × 5.7 mm case provides significant bulk capacitance where board space is limited.
• Low ESR for improved AC performance — 10 mΩ ESR at 20 °C / 100 kHz helps reduce AC losses and supports high-frequency ripple currents.
• High-frequency ripple endurance — Rated ripple capability (3.3 A at 300 kHz) and a 100 kHz ripple current rating allow the capacitor to handle demanding switching environments.
• Robust thermal endurance — 2000-hour life at 105 °C provides predictable aging and stability for high-temperature applications.
• Manufacturing-ready packaging — Embossed carrier taping with moisture-proof packing supports automated assembly and storage.
• Regulatory compliance — RoHS compliant for use in regulated supply chains.

Why Choose RFA0E331MCN1GS?

RFA0E331MCN1GS delivers a balance of high capacitance, low ESR and strong ripple handling in a compact surface-mount radial-can package. Its conductive polymer construction, defined leakage current, and quantified endurance at 105 °C make it suitable for engineers specifying reliable bulk and decoupling capacitance in small-form-factor power designs.

This part is well suited for designers and procurement teams seeking a mass-production, RoHS-compliant capacitor with explicit electrical and thermal specifications—helping simplify BOM selection while providing measurable performance for general-purpose power conditioning tasks.

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