UFW2A332MRD

The UFW2A332MRD is a Nichicon UFW-series aluminum electrolytic capacitor in a radial-lead can designed for audio equipment. It delivers high capacitance (3.3 mF) at a 100 V rating in a compact radial package suitable for through-hole assemblies.

Engineered for reliability in audio applications, the part offers designed endurance at elevated temperature along with measured loss and leakage characteristics that help manage heat and long-term performance in power supply and smoothing roles.

Key Features

• High Capacitance: 3300 µF nominal capacitance with a tolerance of −20% to +20%, providing substantial energy storage for power smoothing in audio circuits.
• 100 V Rated Voltage: Rated up to 100 V, enabling use in higher-voltage audio and related power circuits.
• Low Loss (tan δ): tanδ = 0.08 measured at 20°C, 120 Hz (at rated voltage), supporting lower dissipation in AC/ripple conditions.
• Ripple Current Capability: Specified ripple current of 2.9 A at 120 Hz and 3.335 A at 10 kHz (datasheet values), suitable for handling AC ripple in power rails.
• Leakage Current: Leakage current specified at 990 µA, providing predictable quiescent characteristics for circuit design.
• Thermal and Endurance Rating: Operating temperature range −40°C to +85°C with endurance specified as 2000 hours at 85°C under rated voltage.
• Radial Lead Can Packaging: φ18 × 40 mm can with 12.5 mm lead spacing and standard radial lead format for straightforward through-hole mounting. Packaging options include bulk (no terminal forming) and bag packing.
• Polarized Device: Polarized aluminum electrolytic capacitor for DC power applications common in audio equipment.

Typical Applications

• Audio Equipment: Designed for audio equipment as indicated by the UFW series designation; suitable for smoothing and energy storage in amplifier and preamplifier power supplies.
• Power Supply Filtering: Bulk filtering and decoupling in high-voltage DC rails within audio and related electronic systems.
• Through-Hole PCB Designs: Radial-lead format for reliable installation in through-hole assemblies and repair/replacement scenarios.

Unique Advantages

• High Capacitance in a Compact Can: 3.3 mF in a φ18 × 40 mm radial package allows designers to meet bulk storage requirements without moving to larger chassis-mounted parts.
• High Voltage Handling: 100 V rating enables use where elevated DC bus voltages are required, reducing the need for series arrangements.
• Measured Low Loss: tanδ = 0.08 at 20°C, 120 Hz reduces heat generation under AC ripple compared with higher-loss alternatives.
• Specified Ripple Endurance: Datasheet ripple current specifications at 120 Hz and 10 kHz help engineers size capacitors against real ripple profiles and frequency coefficients.
• Designed Endurance at Elevated Temperature: 2000 hours at 85°C ensures predictable life and performance for equipment operating in warm environments.

Why Choose UFW2A332MRD?

UFW2A332MRD positions itself as a robust, high-capacitance radial electrolytic solution for audio-oriented power designs that require 100 V capability and predictable performance over time. Its specified loss, leakage, and ripple current values allow engineers to design with quantified thermal and electrical margins.

This part is well suited for designers of audio equipment and related electronics who need reliable bulk capacitance, through-hole mounting convenience, and endurance at elevated temperatures. Backed by Nichicon’s UFW-series specifications, it provides a clear, spec-driven option for smoothing, filtering, and energy-storage needs in audio power systems.

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