UPT2W151MRD

The UPT2W151MRD is a radial-lead aluminum electrolytic capacitor in Nichicon’s UPT series, designed for miniature, high-ripple-current, long-life applications. It delivers 150 µF capacitance at a 450 V rating with a polarized radial-can package and is intended for general-purpose and ballast-focused power applications.

Engineered for demanding ripple environments, this part pairs a 5,000-hour endurance at 105°C with measurable high-frequency ripple capability and a compact φ22×50 mm package for through-hole designs.

Key Features

• Electrical – Capacitance & Voltage: 150 µF rated capacitance with a 450 V DC rating and tolerance of −20% to +20%.
• High Ripple Current: Low-frequency ripple current 920 mA at 120 Hz and high-frequency ripple current 1.472 A at 10 kHz, supporting circuits with substantial AC ripple stress.
• Long Endurance: 5,000 hours life at 105°C under rated conditions, with capacitance change within ±20% and leakage current within initial specified limits after endurance testing.
• Loss and Leakage Characteristics: tan δ of 0.20 (measured at 20°C, 120 Hz) and measured leakage current shown as 4,060 µA.
• Temperature Range: Rated for −40°C to +105°C operation.
• Package & Mounting: Radial lead, polarized can with φ22×50 mm case size, 10 mm lead spacing (±0.5 mm), and bulk/bag packing options.
• Regulatory: RoHS compliant.

Typical Applications

• Lighting Ballasts — Suited for ballast applications where the series’ high ripple current capability is required.
• General-Purpose Power Supplies — Used for DC filtering and energy storage in general-purpose power electronics that require a 450 V rated electrolytic capacitor.
• High‑Ripple Circuits — Appropriate where elevated ripple current handling and long endurance at elevated temperature are needed.

Unique Advantages

• High voltage capability: 450 V rating enables use in higher-voltage DC circuits without stacking multiple capacitors.
• Verified ripple performance: Specified ripple currents of 920 mA (120 Hz) and 1.472 A (10 kHz) reduce risk of overheating in ripple‑intensive designs.
• Long-term reliability at elevated temperature: 5,000-hour endurance at 105°C provides predictable aging characteristics for maintenance planning and lifecycle calculations.
• Compact radial-can form factor: φ22×50 mm case with 10 mm lead spacing simplifies through-hole layout while conserving board area compared to larger cans.
• Frequency compensation data available: UPT series frequency coefficient information supports accurate ripple derating across frequencies up to and beyond 10 kHz.
• RoHS compliance: Meets the RoHS directive requirements for environmentally restricted substances.

Why Choose UPT2W151MRD?

UPT2W151MRD combines a 450 V rating with a 150 µF capacitance and proven high-ripple capability to address demanding power-filtering and ballast use cases. Its 5,000-hour endurance at 105°C and specified leakage/impedance characteristics enable predictable performance in applications where elevated temperature and continuous ripple are factors.

This part is well suited for designers specifying radial-lead, through-hole electrolytic capacitors requiring explicit ripple and life specifications, and for procurement teams sourcing RoHS-compliant components for power electronics and ballast applications.

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