UPA1V181MPD

The UPA1V181MPD is a miniature, high-reliability aluminum electrolytic capacitor in Nichicon's UPA series. It is a radial-lead, polarized power capacitor designed for general-purpose use and optimized for switching power supplies where low impedance and high ripple handling in a compact package are required.

With a rated capacitance of 180 µF at 35 V, low impedance, and extended endurance at elevated temperature, the UPA1V181MPD delivers board-level power filtering and decoupling performance in space-constrained designs.

Key Features

• Capacitance & Rated Voltage — 180 µF nominal capacitance with a rated voltage of 35 V and capacitance tolerance of −20% to +20%.
• Low Impedance — Specified impedance of 180 mOhm supports improved transient response and lower power loss in filtering applications.
• High Ripple Current Capability — Low-frequency ripple current 409.5 mA (120 Hz) and high-frequency ripple current 630 mA (10 kHz) for robust ripple handling in switching supplies.
• High Reliability and Endurance — Rated for 3000 hours at 105°C under specified endurance conditions to support long-term operation in elevated-temperature environments.
• Loss Characteristics — Tangent of loss angle (tan δ) = 0.12 measured at 20°C, 120 Hz, indicating controlled dielectric losses for this voltage class.
• Compact Radial Package — φ8 × 11.5 mm can with radial leads, 3.5 mm lead spacing (±0.5 mm), ideal for PCB-mounted power circuits where footprint and height are constrained.
• Low Leakage Current — Specified leakage current of 189 µA, supporting low-standby loss applications.
• RoHS Compliant — Conforms to RoHS directive as noted for the UPA series.
• Packaging Options — Supplied in bulk (no terminal forming) or bag packing to match production and prototyping workflows.

Typical Applications

• Switching Power Supplies — Board-level input/output filtering and energy storage where low impedance and high ripple current are required.
• Power Filtering and Decoupling — General-purpose smoothing and decoupling on DC rails in embedded and industrial control equipment.
• Compact Power Modules — Small can size (φ8 × 11.5 mm) and radial lead format for integration into tight PCB layouts and compact power assemblies.
• High-Temperature Environments — Suitable for applications requiring sustained operation at elevated temperatures up to 105°C with a 3000-hour endurance rating.

Unique Advantages

• Compact, high-ripple solution: φ8 × 11.5 mm package combined with 409.5 mA (120 Hz) / 630 mA (10 kHz) ripple ratings provides strong power handling in a small footprint.
• Improved transient performance: Low impedance (180 mOhm) and controlled tan δ (0.12) reduce voltage sag and power loss during dynamic load events.
• Designed for elevated-temperature endurance: 3000 hours at 105°C supports long-term reliability in thermal stress conditions.
• Practical PCB mounting: Radial-lead form factor with 3.5 mm lead spacing (±0.5 mm) simplifies through-hole assembly and mechanical retention.
• Predictable leakage behavior: Specified leakage current of 189 µA aids in power-budgeting and standby-loss calculations.
• Regulatory compliance: RoHS-compliant construction aligns with standard environmental requirements.

Why Choose UPA1V181MPD?

The UPA1V181MPD from Nichicon's UPA series combines a compact radial-can package with low impedance, high ripple capability, and a defined high-temperature endurance. It is positioned for designers who need reliable board-level energy storage and filtering in switching power supplies and general-purpose power rails where space, ripple handling, and long-term performance at elevated temperatures matter.

Its combination of measured electrical characteristics, standardized radial mounting, and RoHS compliance make it a straightforward choice for production designs that require predictable electrical behavior and proven endurance in compact power applications.

Request a quote or submit a procurement inquiry for UPA1V181MPD to receive pricing and availability information for your next design or production run.