UPW1H181MPD

The UPW1H181MPD is a miniature, radial-lead aluminum electrolytic capacitor from Nichicon's UPW series. It delivers low impedance and high reliability in a compact φ8 × 20 mm can package designed for power-filtering and regulation applications.

Engineered for demanding operating environments, this 180 µF, 50 V polarized capacitor supports wide temperature operation from −55°C to 105°C and is specified for 3000 hours at 105°C, making it suitable for switching power supplies, automotive power electronics, and similar power-management circuits.

Key Features

• Capacitance & Voltage — 180 µF nominal capacitance with a rated voltage of 50 V and tolerance of −20% to +20%.
• Low Impedance — Specified impedance of 240 mΩ to support low-loss filtering in power paths.
• Ripple Current Handling — Rated low-frequency ripple current 559 mA at 120 Hz and high-frequency ripple current 860 mA at 10 kHz for robust RMS ripple performance.
• Leakage & Dissipation — Leakage current listed at 270 µA and tan δ consistent with UPW series measurements at 20°C, 120 Hz (tan δ ≈ 0.10 at 50 V).
• High-Temperature Endurance — Endurance rating of 3000 hours at 105°C under rated voltage and ripple conditions.
• Wide Operating Temperature — Operational range from −55°C to 105°C for use across harsh thermal environments.
• Package & Mounting — Compact radial can (φ8 × 20 mm) with 3.5 mm lead spacing and radial lead mounting; available in bulk (no terminal forming) or bag packing.
• Automotive-Grade Reliability — AEC-Q200 rating noted in specifications for reliability-focused designs.
• Production Status — Mass production availability from Nichicon.

Typical Applications

• Switching Power Supplies — Low impedance and high ripple-current capability make this capacitor suitable for input/output filtering and smoothing in switching regulators.
• Automotive Power Electronics — AEC-Q200-rated construction and wide temperature range enable use in automotive control modules and on-board power systems.
• DC-DC Converters — Compact radial package and strong ripple performance support decoupling and energy storage in DC-DC converter stages.
• Power Filtering — General-purpose bulk and high-frequency filtering for power distribution in industrial and embedded systems.

Unique Advantages

• Compact footprint: φ8 × 20 mm radial can reduces board area while maintaining 180 µF capacitance for compact power designs.
• High ripple tolerance: Rated ripple currents at both low and high frequencies (559 mA at 120 Hz, 860 mA at 10 kHz) support stronger RMS handling and thermal performance.
• Low impedance: 240 mΩ impedance helps minimize voltage drop and improve transient response in regulator output stages.
• Designed for elevated temperatures: 3000-hour endurance at 105°C provides predictable life characteristics for high-temperature applications.
• Automotive reliability standard: AEC-Q200 rating supports use in applications requiring defined reliability processes and qualification.
• Production-ready supply: Mass production status and standard packaging options (bulk/bag) simplify procurement and assembly planning.

Why Choose UPW1H181MPD?

UPW1H181MPD combines the UPW series' miniature, low-impedance construction with proven endurance at elevated temperatures to address power-filtering and decoupling challenges in compact, reliability-focused designs. Its balance of capacitance, ripple-current capability, and AEC-Q200-rated robustness makes it suitable for switching supplies, DC-DC converters, and automotive power electronics where space and thermal performance matter.

Manufactured by Nichicon and offered in production quantities, this capacitor targets engineers and procurement teams looking for a compact, durable electrolytic solution with defined electrical and endurance specifications that integrate into established power subsystem designs.

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