UBX1A331MPL

The UBX1A331MPL is a miniature, high-reliability aluminum electrolytic capacitor in Nichicon’s UBX series. It is a polarized, radial-lead device specified at 330 µF and 10 V, designed for elevated-temperature service up to +150°C and targeted at demanding electronics where extended thermal endurance is required.

Key use cases include power filtering and decoupling in high-temperature environments and automotive electronics; the device is AEC-Q200 rated and RoHS compliant. Note: this part is designated End Of Life (EOL).

Key Features

• Capacitance & Voltage — 330 µF nominal capacitance with a rated voltage of 10 V and a capacitance tolerance of −20% to +20%.
• High-temperature endurance — Specified operating temperature range of −55°C to +150°C and an endurance rating of 1000 hours at 150°C.
• Ripple current performance — Low-frequency ripple current of 201 mA (120 Hz) and high-frequency ripple current of 300 mA (100 kHz), suitable for filtering in switching and DC–DC applications.
• Low leakage and dissipation — Typical leakage current specified at 99 µA and a tangent of loss angle (tan δ) of 0.2 measured at 20°C, 120 Hz.
• Package & mounting — Radial lead (can) construction, size φ10 × 16 mm (L: 1.6 cm × D: 1.0 cm) with 5.0 mm lead spacing; available in bulk (no terminal forming) or bag packing.
• Reliability & compliance — AEC-Q200 compliant and RoHS compliant; part of Nichicon’s UBX laminated case long-life series designed for heavy-duty services.

Typical Applications

• Automotive electronics — Power filtering and decoupling in control modules and subsystems exposed to elevated temperatures, leveraging AEC-Q200 qualification and +150°C capability.
• Power supplies and DC–DC converters — Output smoothing and bulk decoupling where compact size and specified ripple handling at both low and high frequency are required.
• Sensors and instrumentation in harsh environments — Local energy storage and transient suppression in systems operating across a wide temperature range (−55°C to +150°C).

Unique Advantages

• High-temperature capability: Rated for continuous operation up to +150°C with a 1000-hour endurance at that temperature, enabling designs for thermally challenging applications.
• Automotive-ready qualification: AEC-Q200 compliance supports use in automotive electronics and other applications that require proven reliability standards.
• Compact radial form factor: φ10 × 16 mm can with 5 mm lead spacing provides a small-footprint option for tight PCB layouts while retaining useful capacitance.
• Balanced ripple handling for size: 201 mA (120 Hz) and 300 mA (100 kHz) ripple ratings offer practical filtering performance for both linear and switching power stages.
• Low leakage and defined loss characteristics: 99 µA leakage and tan δ = 0.2 (20°C, 120 Hz) aid predictable behavior in power and timing circuits.
• Regulatory compliance: RoHS compliant construction aligns with environmental requirements for commercial and automotive platforms.

Why Choose UBX1A331MPL?

UBX1A331MPL is positioned for engineers needing a compact electrolytic capacitor that withstands high operating temperatures and meets automotive reliability standards. Its combination of 330 µF capacitance at 10 V, defined ripple current ratings, and AEC-Q200 compliance makes it suitable for thermal-stressed power filtering and decoupling tasks.

Manufactured by Nichicon as part of the UBX series, this part provides a clear specification set for designs that require predictable leakage, dissipation, and endurance characteristics. Note the part’s End Of Life status for procurement planning and substitution consideration.

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