UPW2W4R7MHD

The UPW2W4R7MHD is a miniature, high-reliability aluminum electrolytic capacitor in a radial lead can designed for demanding power applications. As part of Nichicon's UPW series, it delivers a 4.7 µF capacitance at a 450 V rating with specifications tailored for switching power supplies and power electronics in automotive and industrial systems.

This radial-lead component combines compact size (φ12.5 × 20 mm), AEC-Q200 qualification, and measured electrical characteristics such as tanδ and ripple current to support robust performance in elevated-temperature environments.

Key Features

• Capacitance & Tolerance — 4.7 µF nominal capacitance with tolerance of −20% to +20%, specified at 20°C, 120 Hz.
• High DC Voltage — Rated for 450 V to support high-voltage power rails and energy-storage functions.
• Loss Factor (tanδ) — tanδ of 0.25 measured at 20°C and 120 Hz, providing defined dissipation characteristics for thermal and circuit design.
• Ripple Current Performance — Low-frequency ripple current of 49 mA at 120 Hz and high-frequency ripple current of 78.4 mA at 10 kHz for filtering and decoupling on switching supplies.
• Leakage Current — Specified leakage current of 184.6 µA after voltage application, useful for power-budgeting and standby considerations.
• Reliability & Endurance — Rated endurance of 7000 hours at 105°C under DC bias plus rated ripple conditions.
• Operating Temperature Range — Specified for −25°C to +105°C to accommodate elevated-temperature system environments.
• Package & Mechanical — Radial lead can, size φ12.5 × 20 mm, 5.0 mm lead spacing (±0.5 mm); available in bulk (no terminal forming) or bag packing.
• Automotive-Grade Rating — AEC-Q200 listed in specifications for applications requiring automotive-grade qualification.

Typical Applications

• Switching Power Supplies — Bulk and decoupling capacitance for high-voltage rails in isolated and non-isolated converters.
• Automotive Power Electronics — Energy storage and smoothing in automotive systems where AEC-Q200 qualification is required.
• Power Conversion Modules — Filtering and ripple suppression in inverters, DC–DC converters, and power modules operating up to 450 V.
• Industrial Controls — High-voltage filtering and transient buffering in industrial power-control and drive systems.

Unique Advantages

• Compact high-voltage solution: 4.7 µF at 450 V in a φ12.5 × 20 mm can saves board space while supporting high-voltage rails.
• Defined dissipation characteristics: Specified tanδ (0.25 at 20°C, 120 Hz) helps predict heating and performance under AC stress.
• Measured ripple and leakage data: Published low- and high-frequency ripple currents and leakage current enable accurate thermal and power-loss budgeting.
• Long-duration endurance: 7000 hours at 105°C supports designs that require sustained performance at elevated temperatures.
• Automotive-grade qualification: AEC-Q200 listing supports use in automotive electronic systems that require industry-recognized component qualification.
• Through-hole mounting convenience: Radial-lead can and standard 5.0 mm lead spacing simplify prototyping and assembly for through-hole designs.

Why Choose UPW2W4R7MHD?

UPW2W4R7MHD positions itself as a compact, high-voltage electrolytic capacitor for engineers who need a measurable, reliable solution for power-filtering and energy-storage tasks. Its combination of 450 V rating, defined electrical parameters (tanδ, ripple currents, leakage), and 7000-hour endurance at 105°C makes it suitable for switching power supplies, automotive power electronics, and industrial power modules where predictable performance under stress is required.

The AEC-Q200 listing and radial-lead packaging simplify integration into validated automotive designs and through-hole assemblies, while the provided specifications enable precise thermal and electrical design trade-offs.

Request a quote or contact sales to discuss availability, lead times, and pricing for UPW2W4R7MHD.