UPW2A181MHD

The UPW2A181MHD is an aluminum electrolytic capacitor designed for miniature, low-impedance power applications. It delivers 180 µF at a 100 V rating in a compact radial-can package optimized for switching power supplies and other power-management circuits.

Engineered for demanding thermal and reliability requirements, the part features a wide operating temperature range from -55°C to 105°C, AEC-Q200 qualification, and a specified lifetime of 7000 hours at 105°C, providing predictable performance in harsh environments.

Key Features

• Capacitance & Voltage: 180 µF nominal capacitance with a 100 V rated voltage, suitable for higher-voltage power rails where bulk energy storage and smoothing are required.
• Low Impedance: Specified impedance of 240 mΩ, helping to reduce voltage ripple and improve transient response in switching power stages.
• Temperature Range & Lifetime: Operating range of -55°C to 105°C with a rated lifetime of 7000 hours at 105°C, enabling sustained operation under elevated temperature stress.
• Ripple Current Performance: Ripple current ratings include 513.5 mA at 120 Hz and 790 mA at 10 kHz, supporting both low- and high-frequency ripple conditions common in power converters.
• Package & Mounting: Radial lead, can-style package with 5 mm lead spacing and compact dimensions (L: 3.05 × D: 1.25 cm) for through-hole assembly and space-constrained layouts.
• AEC-Q200 Qualification: Rated AEC-Q200 for enhanced reliability and suitability for automotive and other high-reliability applications.
• Polarized Design: Polar capacitor construction for conventional DC power filtering and energy-storage roles.

Typical Applications

• Switching Power Supplies: Bulk and smoothing capacitor for input/output filtering and ripple reduction in switching regulators and power modules.
• Automotive Electronics: Designed to meet AEC-Q200 requirements for use in automotive power subsystems and electronic control modules.
• High-Temperature Power Systems: Suited to power electronics that operate at elevated temperatures, backed by a 7000-hour rating at 105°C.
• Through-Hole Power Designs: Radial lead can package for reliable through-hole mounting in industrial and embedded power assemblies.

Unique Advantages

• Compact, space-conscious footprint: Small can dimensions (3.05 × 1.25 cm) let designers save board area while retaining substantial capacitance and voltage capability.
• High-voltage capability: 100 V rating supports higher-voltage rails without the need for multiple capacitors in series.
• Low impedance for improved power quality: 240 mΩ impedance reduces output ripple and improves transient stability in switching converters.
• Designed for elevated-temperature durability: 7000 hours at 105°C provides predictable end-of-life behavior for long-term thermal applications.
• AEC-Q200 qualification: Adds confidence for use in automotive and other high-reliability systems requiring component-level stress screening.
• Through-hole radial lead package: Robust mechanical connection and ease of assembly for repairable or high-vibration environments.

Why Choose UPW2A181MHD?

The UPW2A181MHD balances a high-voltage 100 V rating and 180 µF capacitance with low impedance and compact radial-can packaging, making it a practical choice for designers of switching power supplies and high-temperature power electronics. Its ripple current performance and polarized construction align with common requirements in power-management circuits.

With AEC-Q200 qualification and a 7000-hour life at 105°C, this capacitor is positioned for applications that demand long-term stability and reliability, including automotive and industrial power subsystems. It delivers measurable design value where compact size, thermal endurance, and low impedance are priorities.

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