UPT2W180MHD

The UPT2W180MHD from Nichicon is a radial-lead aluminum electrolytic capacitor in the UPT series, designed for miniature, high-voltage applications. It delivers 18 µF at 450 V in a compact radial can with high ripple capability and extended endurance for demanding general-purpose and ballast applications.

Key Features

• Capacitance & Voltage: 18 µF rated capacitance at 450 V for high-voltage DC applications.
• High ripple current: Rated ripple current of 180 mA at 120 Hz and 288 mA at 10 kHz, supporting AC ripple handling across common frequencies.
• Long life / Endurance: Rated for 5000 hours at 105 °C under DC bias plus rated ripple current, with defined limits for capacitance change, tan δ, and leakage current after endurance testing.
• Wide operating temperature: Specified operating range from –40 °C to 105 °C for use across varying environmental conditions.
• Compact radial package: Radial, can-style package with radial leads, lead spacing 5 mm and dimensions L: 2.5 × D: 1.25 cm for space-constrained designs.
• Polarized, general-purpose use: Polarized aluminum electrolytic construction suitable for general-purpose high-voltage smoothing and filtering.
• Leakage current specification: Leakage current after 2 minutes at 20 °C is specified as not more than 0.06CV + 10 (µA), providing a measurable limit for design validation.
• RoHS compliant: Conforms to RoHS requirements for environmental compliance.
• Tolerance: Capacitance tolerance of ±20% (–20% to +20%) at 120 Hz, 20 °C.

Typical Applications

• Ballast circuits: Suited for ballast application where high ripple current capacity and high-voltage rating are required.
• High-voltage power supplies: Bulk smoothing and ripple suppression in high-voltage DC supplies using the 450 V rating and 18 µF capacitance.
• General-purpose filtering: General-purpose high-voltage filtering and decoupling where a compact, radial electrolytic capacitor is needed.

Unique Advantages

• High-voltage capability: 450 V rating enables use in circuits requiring elevated DC voltages without series stacking.
• Frequency-flexible ripple handling: Specified ripple current values at 120 Hz and 10 kHz allow predictable performance across low and high ripple frequencies.
• Extended high-temperature life: 5000-hour endurance at 105 °C under rated conditions supports long-term reliability in elevated-temperature environments.
• Compact radial footprint: Small can size with 5 mm lead spacing simplifies placement in dense PCB layouts while maintaining leaded mounting robustness.
• Measurable leakage limits: Clear leakage current formula (0.06CV + 10 µA after 2 minutes at 20 °C) aids electrical budgeting and quality verification.
• Regulatory compliance: RoHS compliance supports use in products targeting restricted-substance conformity.

Why Choose UPT2W180MHD?

UPT2W180MHD combines a high 450 V rating with a compact radial can and measurable high-ripple performance, making it a practical choice for designers of high-voltage power supplies, ballast circuits, and other general-purpose smoothing applications. The UPT series endurance data and leakage specifications provide predictable aging characteristics for reliability planning.

This capacitor is well suited for engineers seeking a compact, leaded aluminum electrolytic with defined ripple, temperature, and life characteristics from a recognized manufacturer (Nichicon) and series (UPT).

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