UPH2W121MHD6

The UPH2W121MHD6 is a high‑voltage, miniature aluminum electrolytic capacitor from Nichicon's UPH series. It is a polarized, radial‑lead, can‑type capacitor designed for general‑purpose high‑voltage applications and is explicitly suited for ballast applications.

With a 120 µF capacitance at 450 V rating, high rated ripple capability, and a 2000‑hour load life at 105 °C, this part targets designs that require compact high‑voltage energy storage with sustained thermal endurance. It is RoHS compliant (2011/65/EU, (EU)2015/863).

Key Features

• Electrical Performance — 120 µF nominal capacitance with ±20% tolerance and a 450 V rated voltage; polarized design for DC high‑voltage applications.
• High Ripple Capability — Rated ripple current of 800 mA at 120 Hz (105 °C) and 1.2 A at 10 kHz, enabling effective smoothing and filtering under AC ripple load.
• Thermal Endurance — Load life of 2000 hours at 105 °C when subjected to D.C. bias plus rated ripple current, supporting sustained operation in elevated temperature environments.
• Frequency Behavior — Frequency coefficients for rated ripple current are provided (e.g., 1.00 at 120 Hz and 1.50 at 10 kHz or more), allowing designers to scale ripple ratings with operating frequency.
• Leakage and Loss Characteristics — Leakage current specification: not more than 0.04CV + 100 (µA) after 1 minute at 20 °C; tangent of loss angle (tan δ) maximum 0.20 at 450 V (measured at 120 Hz, 20 °C).
• Mechanical & Mounting — Radial lead, can package with lead spacing 7.5 mm and compact dimensions L: 3.15 cm × D: 1.8 cm for space‑constrained through‑hole assemblies.
• Environmental Range — Operating temperature range −40 °C to +105 °C and RoHS compliance for regulatory alignment.

Typical Applications

• Ballast Modules — Suited for lamp ballast circuitry where high DC voltage and reliable ripple handling are required.
• High‑Voltage Power Supplies — Bulk filtering and smoothing in compact high‑voltage supply stages using through‑hole mounting.
• Industrial Lighting — Energy storage and ripple suppression in electronic lighting and ballast systems that operate at elevated temperatures.
• General‑Purpose High‑Voltage Filtering — Use wherever a compact, polarized aluminum electrolytic is needed for high‑voltage filtering and decoupling.

Unique Advantages

• Compact high‑voltage form factor: 120 µF at 450 V in a small radial can (3.15 cm × 1.8 cm) helps reduce board area in through‑hole designs.
• Designed for high ripple loads: Rated ripple currents (800 mA @120 Hz, 1.2 A @10 kHz) and frequency coefficients let you size the capacitor to actual operating frequencies.
• Extended thermal life: 2000‑hour endurance at 105 °C under D.C. bias plus rated ripple current provides predictable long‑term performance in hot environments.
• Predictable electrical behavior: Specified tan δ and leakage current formula (0.04CV + 100 µA) enable conservative design and margining for leakage and dissipation.
• Through‑hole simplicity: Radial lead package with 7.5 mm lead spacing supports straightforward assembly and replacement in legacy and new designs.
• Regulatory compliance: RoHS compliant to 2011/65/EU and (EU)2015/863 for material restriction requirements.

Why Choose UPH2W121MHD6?

UPH2W121MHD6 combines high‑voltage capability with a compact radial can package and robust thermal endurance to meet the demands of ballast modules and other high‑voltage filtering applications. Its specified ripple ratings, leakage limits, and loss characteristics provide measurable parameters for conservative thermal and reliability design.

This Nichicon part is suited to engineers and procurement teams specifying compact, through‑hole high‑voltage capacitors that must perform at elevated temperatures and carry predictable ripple and leakage behavior over an extended load life.

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