UPHW6121MHD

The UPHW6121MHD from Nichicon is a miniature, high-reliability aluminum electrolytic capacitor in the UPH series. It is a radial-lead, polarized capacitor rated for 420 V and 120 µF with a compact φ16 × 35.5 mm can and 7.5 mm lead spacing.

Designed for general-purpose and ballast applications, this capacitor delivers high ripple-current capability and extended endurance—making it suitable for high-voltage through-hole assemblies where durable performance at elevated temperature is required.

Key Features

• Electrical Performance — Rated capacitance 120 µF with tolerance of -20% to +20% and a tanδ (DF) of 0.20 measured at 20°C, 120 Hz.
• High Voltage Rating — 420 V rated voltage suitable for high-voltage circuits within its specified limits.
• Ripple Current Handling — Low-frequency ripple current 780 mA at 120 Hz and high-frequency ripple current 1.17 A at 10 kHz, supporting demanding ripple environments.
• Leakage Current — Specified leakage current of 2116 µA (measured at 20°C after 1 minute under rated voltage conditions).
• Reliability & Endurance — Load life of 2000 hours at 105°C; endurance specifications require capacitance change within ±20% and leakage not exceeding initial specified values after life test.
• Package & Mounting — Radial lead, polarized aluminum can with φ16 × 35.5 mm dimensions and 7.5 mm lead spacing. Available in bulk (no terminal forming) or bag packing.
• Temperature Range & Compliance — Operates from -40°C to +105°C and is RoHS compliant.

Typical Applications

• Ballast Applications — Specifically noted as suited for ballast circuits where high-voltage, reliable electrolytic capacitance is required.
• General-Purpose Power Electronics — Used in through-hole high-voltage designs that require compact, polarized capacitance for smoothing or decoupling.
• High-Voltage Radial Lead Assemblies — Fits designs needing a miniature, high-voltage radial electrolytic capacitor with defined lead spacing for PCB mounting.
• Replacement and Repair — Supplied in bulk or bag packing to support production runs, repairs, and prototyping workflows.

Unique Advantages

• High Voltage Capability: 420 V rating enables use in higher-voltage circuits without up-rating components.
• Compact Miniature Footprint: φ16 × 35.5 mm can provides a space-efficient solution for through-hole designs.
• Robust Ripple Performance: Specified ripple currents at both low and high frequencies (780 mA at 120 Hz; 1.17 A at 10 kHz) support demanding filtering requirements.
• Elevated Temperature Endurance: 2000 hours life at 105°C offers predictable behavior in high-temperature operating environments.
• Clear Electrical Limits: Defined tanδ and leakage current parameters (0.20 tanδ; 2116 µA leakage) simplify electrical design and verification.
• RoHS Compliance: Conforms to RoHS requirements for regulated material content.

Why Choose UPHW6121MHD?

The UPHW6121MHD is positioned for engineers who need a compact, high-voltage aluminum electrolytic capacitor with documented ripple handling and endurance characteristics. As a Nichicon UPH series part, it combines a miniature radial-can package with specifications aimed at reliable performance in elevated-temperature, high-voltage applications.

This part is well suited for designers and procurement teams building or servicing through-hole power assemblies and ballast circuits that require a predictable lifecycle, clear electrical limits, and RoHS-compliant components from a recognized manufacturer.

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