UPT2W820MHD

The UPT2W820MHD is a Nichicon UPT series aluminum electrolytic capacitor designed for high-voltage, high-ripple power applications. It is a radial-lead, polarized can-style capacitor offering 82 µF capacitance at a 450 V rating in a compact footprint.

Typical placements include ballast and general-purpose power electronics where compact size, elevated ripple handling and long operational life are required. Key value propositions are its high ripple-current capability, extended endurance at elevated temperature, and RoHS compliance.

Key Features

• Rated Capacitance & Voltage — 82 µF capacitance rated for 450 V operation, suitable for high-voltage DC-link and filtering duties.
• High Ripple Current — Rated ripple handling of 550 mA at 120 Hz and 880 mA at 10 kHz, enabling sustained operation under AC ripple stress.
• Long Life Endurance — Designed for 5000 hours at 105°C under DC bias plus rated ripple current; after endurance testing, capacitance remains within ±20% of initial value and leakage remains at or below initial specified limits.
• Temperature Range — Operational from −40°C to +105°C to support a wide range of environmental conditions.
• Low-loss Characteristics — Loss tangent (tan δ) specification up to 0.20 at 450 V (measured at 120 Hz, 20°C), useful for evaluating dissipation in AC and ripple applications.
• Leakage Current Specification — Series leakage current defined as ≤ 0.06CV + 10 (µA) after 2 minutes at rated voltage and 20°C, enabling predictable stand-by and charged-state behavior.
• Compact Radial Package — Radial lead, can-style package with lead spacing of 7.5 mm and physical size L: 3.55 × D: 1.8 cm for space-efficient PCB insertion.
• Polarized, General-Purpose Use — Polarized construction intended for DC applications; marketed for general-purpose power circuitry including ballast applications.
• RoHS Compliant — Conforms to RoHS requirements for lead-free construction.

Typical Applications

• Lighting Ballasts — Provides the high-voltage capacitance and ripple endurance required for electronic ballast power stages.
• Power Supply Filtering — Suitable for DC-link smoothing and bulk filtering in high-voltage supplies where compact size and ripple capability are important.
• Industrial Power Electronics — Used in general-purpose industrial power circuits that demand elevated temperature endurance and steady leakage characteristics.

Unique Advantages

• High-voltage, compact solution: 82 µF at 450 V in a miniature radial can reduces PCB footprint for high-voltage designs.
• Superior ripple handling: Specified ripple currents of 550 mA (120 Hz) and 880 mA (10 kHz) support continuous operation under significant AC stress.
• Extended operational life: 5000 hours at 105°C under rated conditions provides predictable long-term performance in elevated-temperature environments.
• Predictable electrical behavior: Clear leakage-current and tan δ specifications allow accurate loss and leakage budgeting during design verification.
• Robust operating temperature span: −40°C to +105°C covers a wide range of ambient conditions encountered in industrial and lighting equipment.
• Regulatory compliance: RoHS compliance supports deployment in regions and products requiring lead-free components.

Why Choose UPT2W820MHD?

The UPT2W820MHD combines a high 450 V rating with 82 µF capacitance in a compact radial-lead package, engineered for applications that require sustained ripple handling and extended endurance at elevated temperatures. Its clear electrical specifications—ripple current, leakage formula, tan δ limits and 5000-hour endurance at 105°C—make performance trade-offs measurable and verifiable during design.

This capacitor is well suited to engineers specifying high-voltage smoothing and filtering components for ballast circuits and general-purpose power electronics who need a compact, long-life, RoHS-compliant solution from Nichicon's UPT series.

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