UPJ2W2R2MPD

The UPJ2W2R2MPD is a miniature, high-reliability aluminum electrolytic capacitor from Nichicon’s UPJ series. It is a radial-leaded, polarized capacitor designed for general-purpose and switching power supply applications where a compact 450 V, 2.2 µF solution is required.

This part delivers low impedance performance and long life characteristics, with a rated endurance of 5000 hours at 105°C and RoHS compliance, making it suitable for high-voltage filtering and energy-storage tasks in through-hole designs.

Key Features

• Capacitance & Voltage: 2.2 µF capacitance rated at 450 V, with a tolerance of -20% to +20% for predictable performance in high-voltage circuits.
• Low Loss (DF / tanδ): Dissipation factor (tanδ) 0.25 measured at 20°C, 120 Hz, providing defined loss characteristics for design margin calculations.
• Ripple Current Ratings: Low-frequency ripple current 28 mA at 120 Hz and high-frequency ripple current 44.8 mA at 200 kHz to support both mains-frequency and high-frequency switching environments.
• Leakage Current: Specified leakage current of 139 µA for predictable idle-state behavior after voltage application.
• High-Temperature Endurance: Load life rated 5000 hours at 105°C, enabling extended operation under elevated temperature and ripple stress.
• Operating Range & Polarization: Rated for operation from -25°C to +105°C and polarized for correct DC application.
• Compact Radial Package: Cylindrical can, φ10 × 20 mm length, radial lead mounting with 5.0 mm lead spacing (±0.5 mm), suitable for through-hole assembly and manual or wave soldering processes.
• Packaging & Compliance: Available in bulk (no terminal forming) or bag packing and RoHS compliant. Status: End Of Life.

Typical Applications

• Switching Power Supplies: Low-impedance behavior and 450 V rating make it suitable for high-voltage filtering and energy smoothing in switch-mode power supplies.
• High-Voltage Filtering: Compact 450 V, 2.2 µF construction for DC link decoupling and high-voltage filter networks in power conversion stages.
• Through-Hole Power Modules: Radial lead package and 5 mm lead spacing facilitate use in through-hole converters and power assemblies where replacementable components are preferred.

Unique Advantages

• High-Voltage Capability: 450 V rating supports applications requiring elevated DC voltages without up-rating components.
• Defined Endurance: 5000 hours at 105°C provides clear lifetime expectation for thermal and ripple-loaded designs.
• Measured Ripple Performance: Specified ripple currents at both low and high frequencies help engineers size thermal and ripple-handling margins accurately.
• Compact Form Factor: φ10 × 20 mm can offers a space-efficient solution for through-hole assemblies requiring substantial voltage handling in a small footprint.
• RoHS Compliant: Conforms to RoHS requirements for regulatory and environmental compatibility.
• Clear Leakage Specification: Defined leakage current value aids in bias and standby current budgeting for precision power designs.

Why Choose UPJ2W2R2MPD?

UPJ2W2R2MPD combines a high 450 V rating with a compact radial-leaded package and defined electrical characteristics—capacitance, loss tangent, ripple currents, and leakage—that let engineers design with predictable performance margins. The 5000-hour endurance at 105°C supports long-term operation in thermally demanding power environments.

This part is well suited to designers of switching power supplies, high-voltage filtering networks, and through-hole power modules who need a compact, specified-capability electrolytic capacitor. Note that the part is currently End Of Life, so availability may be limited for new production designs.

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