UKW2A332MRD

The UKW2A332MRD is a Nichicon UKW series aluminum electrolytic capacitor in a radial-lead can, specified at 3.3 mF (3300 µF) and 100 V. It is designed for audio and AV applications where high bulk capacitance, voltage margin and long-term stability at elevated temperature are required.

Key attributes include a 2000-hour endurance rating at 85°C, RoHS compliance, and series-level development focused on sound quality through a new electrolyte formulation. Note: this part is listed as End Of Life.

Key Features

• Capacitance & Voltage: 3.3 mF (3300 µF) nominal capacitance at a 100 V rated voltage, suited for high-voltage audio and AV power rails.
• Audio-Optimized Electrolyte: UKW series development emphasizes a harmonious balance of sound quality via a new electrolyte formulation targeted at AV and audio equipment.
• Endurance & Temperature: Rated for 2000 hours at 85°C with specified endurance limits (capacitance change within ±20%, tan δ ≤ 200% of initial specified value, leakage current ≤ initial specified value after the test).
• Ripple Current Capability: Specified ripple handling of 2.9 A at 120 Hz and 3.335 A at 10 kHz for effective smoothing under AC ripple conditions.
• Electrical Characteristics: Polarized capacitor with tolerance ±20% and leakage current specifications: after 1 minute ≤ 0.03 CV (µA) and after 2 minutes ≤ 0.01 CV (µA).
• Low-temperature Behavior & Loss: Category temperature range −40°C to +85°C; tan δ maximum for 100 V is 0.08 (measurement frequency 120 Hz at 20°C). For capacitances above 1000 μF, add 0.02 to tan δ per 1000 μF as noted in the series specification.
• Package & Mounting: Radial lead can, case size φ25 × 50 mm, lead spacing 12.5 mm; supplied bulk (no terminal forming) / bag packing.
• Regulatory Compliance: RoHS compliant per the series specification.

Typical Applications

• Audio Equipment: Used in audio electronics where large bulk capacitance and stable performance at elevated temperatures support consistent sound reproduction.
• AV Systems: Suited for consumer and professional AV devices where the UKW series’ electrolyte tuning contributes to the desired audio characteristics.
• Power Supply Smoothing for Audio Electronics: Provides bulk energy storage and ripple handling on high-voltage rails in audio and AV power supplies.

Unique Advantages

• High Bulk Capacitance: 3300 µF provides substantial energy storage for power smoothing and decoupling in audio/AV systems.
• High Voltage Rating: 100 V rating enables use on higher-voltage rails while maintaining capacitance margin for reliability.
• Designed for Audio Quality: Series-level electrolyte development focuses on achieving a harmonious balance of sound quality for AV applications.
• Durability at Elevated Temperature: 2000-hour endurance at 85°C with defined limits on capacitance change, tan δ and leakage current supports predictable lifetime performance.
• Measured Ripple Performance: Explicit ripple current specifications at 120 Hz and 10 kHz allow engineering trade-offs for both low- and high-frequency ripple environments.
• RoHS Compliant: Meets RoHS requirements for use in regulated manufacturing environments.

Why Choose UKW2A332MRD?

The UKW2A332MRD combines high capacitance and a 100 V rating in a radial-lead aluminum electrolytic package tailored for audio and AV equipment. Its UKW-series electrolyte development targets sound quality while the published endurance and leakage limits give engineers quantifiable reliability metrics to design against.

This part is a fit for designers needing substantial bulk storage, explicit ripple current ratings at both low and high frequency, and a known endurance profile at elevated temperature. Nichicon’s series-level documentation supports informed integration into audio/AV power systems.

If you would like pricing, lead time, or to request a quote for UKW2A332MRD, submit an RFQ or request a quote and our team will provide availability and ordering information.