UPA1V182MHD

The UPA1V182MHD is a miniature, high-reliability aluminum electrolytic capacitor from Nichicon's UPA series. It is a radial-lead, polarized electrolytic designed for switching power supplies and other power-electronics applications that require high ripple tolerance in a compact can.

Key strengths include low impedance (32 mΩ), high allowable ripple current (2.499 A at 120 Hz, 2.94 A at 10 kHz), and long endurance (5000 hours at 105°C), delivering stable filtering and energy-storage performance across a wide temperature range (‑55°C to 105°C).

Key Features

• Capacitance and Voltage — 1.8 mF (1800 µF) nominal capacitance at a rated voltage of 35 V with capacitance tolerance of −20% to +20%.
• Low Impedance — Rated impedance of 32 mΩ helps reduce voltage ripple and losses in high-current circuits.
• High Ripple Current Capability — Low-frequency ripple current 2.499 A (120 Hz) and high-frequency ripple current 2.94 A (10 kHz), supporting switching supply and decoupling duties.
• Endurance and Temperature Range — Rated life of 5000 hours at 105°C and operating range from −55°C to 105°C for extended reliability in demanding environments.
• Loss Characteristics — Dissipation factor (tan δ) specified as 0.12 (measured at 20°C, 120 Hz for the 35 V rating).
• Leakage Current — Specified leakage current of 1890 µA.
• Package and Mounting — φ12.5 × 35.5 mm can, radial lead mounting with 5 mm lead spacing (±0.5 mm). Available in bulk (no terminal forming) or bag packing.
• Compliance — RoHS compliant.

Typical Applications

• Switching Power Supplies — Bulk and output filtering where high ripple current and low impedance improve converter stability and efficiency.
• DC–DC Converters — Input and output decoupling for point-of-load converters benefiting from compact size and high ripple capability.
• Industrial Power Electronics — Energy storage and smoothing in control and power modules that require long life at elevated temperatures.
• General Purpose Power Filtering — Replacement and design-in for general power-rail smoothing in embedded and consumer devices needing a polarized electrolytic solution.

Unique Advantages

• Compact, high-capacity package: 1800 µF in a φ12.5 × 35.5 mm can enables space-efficient board layouts without sacrificing capacitance.
• Designed for switching environments: High ripple current ratings at both low and high frequencies support modern switching topologies and fast load transients.
• Low impedance for reduced losses: 32 mΩ impedance minimizes ripple voltage and power dissipation under load.
• Extended thermal endurance: 5000-hour life at 105°C gives predictable long-term performance in elevated-temperature applications.
• Wide operating temperature: −55°C to 105°C supports use across harsh and variable environments.
• Procurement-friendly packaging: Available in bulk or bag packing to suit assembly and inventory workflows.

Why Choose UPA1V182MHD?

UPA1V182MHD combines a compact form factor with the electrical characteristics demanded by power conversion and filtering applications: high capacitance, low impedance, and solid ripple-current capability. Its 35 V rating, robust endurance (5000 hours at 105°C), and wide temperature range make it suitable for designers targeting reliable performance in switching power supplies and industrial power electronics.

This part is appropriate for engineers and procurement teams looking for a RoHS-compliant, radial-lead aluminum electrolytic that balances size, ripple handling, and longevity while simplifying board layout and thermal design considerations.

Request a quote or submit an RFQ to receive pricing and lead-time information for the UPA1V182MHD.