UVK1H332MHD

The UVK1H332MHD is a radial-lead aluminum electrolytic capacitor from Nichicon's UVK series, offering 3.3 mF (3300 µF) capacitance at a 50 V rating in a miniature-sized can (φ18 × 35.5 mm). It is designed for general-purpose electronic designs requiring bulk capacitance, ripple handling, and a compact radial package.

Key value propositions include high bulk capacitance in a compact footprint, specified ripple current performance across low and high frequencies, and a proven endurance rating of 2000 hours at 85°C. The UVK series is compliant with the RoHS directive (2011/65/EU, (EU)2015/863).

Key Features

• High Capacitance: 3.3 mF (3300 µF) nominal capacitance with ±20% tolerance at 120 Hz, 20°C, providing significant bulk energy storage for DC rails.
• Rated Voltage: 50 V working voltage suitable for mid-voltage power rails and general-purpose circuits.
• Ripple Current Performance: Specified low-frequency ripple current of 2.5 A at 120 Hz and high-frequency ripple current of 2.875 A at 10 kHz for applications with both mains-frequency and switching noise.
• Loss Tangent (tan δ): tan δ = 0.12 measured at 120 Hz and 20°C, useful for assessing ESR-related heating and stability.
• Leakage Current: Leakage current specified as 4950 µA after rated-voltage application.
• Endurance & Temperature Range: Rated for 2000 hours at 85°C and operational over −40°C to +85°C.
• Mechanicals & Mounting: Radial lead, polarized aluminum can with diameter φ18 mm and length 35.5 mm; lead spacing 7.5 mm (±0.5 mm).
• Packaging & Production Status: Available in bulk (no terminal forming) or bag packing; part is in mass production.

Typical Applications

• Power Supply Smoothing: Bulk capacitance for DC rail smoothing where 3.3 mF at up to 50 V is required.
• Ripple Current Management: Capacitor selection for circuits that must handle up to 2.5 A (120 Hz) or 2.875 A (10 kHz) ripple currents.
• General-Purpose Electronics: Suitable for general-purpose designs requiring a compact radial aluminum electrolytic with endurance to 85°C.

Unique Advantages

• Compact, High-Capacitance Package: 3.3 mF in a φ18 × 35.5 mm can provides significant bulk capacitance while minimizing board footprint.
• Dual-Frequency Ripple Capability: Explicit ripple current ratings at both 120 Hz and 10 kHz support a range of power and switching applications.
• Long Endurance at Elevated Temperature: 2000 hours rated life at 85°C gives a defined reliability metric for thermal-stressed designs.
• Clear Electrical Characterization: Specified tan δ (0.12 at 120 Hz, 20°C) and measured leakage current (4950 µA) enable predictable thermal and leakage budgeting.
• RoHS Compliance: UVK series compliance with RoHS (2011/65/EU, (EU)2015/863) supports regulatory requirements for many designs.
• Readily Available Packaging: Bulk and bag packing options simplify procurement and assembly for production and prototype volumes.

Why Choose UVK1H332MHD?

UVK1H332MHD is positioned for engineers and procurement teams needing a robust, compact aluminum electrolytic capacitor that delivers substantial bulk capacitance and defined ripple handling without sacrificing endurance. Its radial-lead can, clear mechanical dimensions, and specified electrical characteristics make it straightforward to integrate into power supply and general-purpose circuits.

The part is suitable for designs that require predictable performance over −40°C to +85°C and a documented 2000-hour life at 85°C. With RoHS compliance and mass production availability, UVK1H332MHD offers a practical choice for production and prototyping where compact size, ripple tolerance, and endurance are key selection criteria.

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