UBX1E331MHL

The UBX1E331MHL is a radial-lead aluminum electrolytic capacitor in Nichicon’s UBX series designed for high-temperature, high-reliability applications. It delivers 330 µF capacitance at a 25 V rating with a laminated-can construction and radial leads.

Engineered for demanding environments—including automotive electronics—the part combines a wide operating temperature range (−55 °C to +150 °C), AEC-Q200 classification, and a 1000-hour endurance rating at 150 °C to support long-life power filtering and energy-buffering needs.

Key Features

• High-temperature endurance — Rated operating temperature −55 °C to +150 °C with a guaranteed 1000 hours life at 150 °C (φ12.5 case).
• Capacitance and tolerance — 330 µF nominal with ±20% tolerance at 120 Hz, 20 °C for predictable filtering performance.
• Voltage rating — 25 V rated voltage suitable for mid-voltage power rails and DC-link applications.
• Loss characteristics — tanδ (DF) 0.14 measured at 20 °C, 120 Hz (25 V) to characterize dissipation under AC stress.
• Ripple current capability — 402 mA at 120 Hz (low frequency) and 600 mA at 100 kHz (high frequency) for handling AC ripple on power rails.
• Leakage current — Specified leakage current of 247.5 µA after 1 minute at rated voltage (20 °C) for predictable standby behavior.
• Form factor and mounting — Radial lead can (φ12.5 × 25L) with 5.0 mm lead spacing (±0.5 mm) for through-hole assembly and secure mechanical retention.
• Automotive-grade reliability — AEC-Q200 compliant and RoHS compliant for regulated applications.
• Packaging options — Available in bulk (no terminal forming) or bag packing to support different production workflows.

Typical Applications

• Automotive electronics — Designed for vehicle ECUs and power modules where high-temperature endurance and AEC-Q200 compliance are required.
• Power supply filtering — Provides bulk capacitance and ripple handling for DC power rails and regulator output smoothing in high-temperature systems.
• High-temperature power modules — Suited to energy buffering and decoupling inside modules that operate at elevated ambient temperatures.

Unique Advantages

• Long-life high-temperature rating: 1000 hours at 150 °C (φ12.5 case) enables reliable performance in sustained high-temperature environments.
• Automotive-capable qualification: AEC-Q200 compliance supports designs targeting demanding automotive electronics markets.
• Compact radial can: φ12.5 × 25L size with 5.0 mm lead spacing offers a small footprint and easy through-hole mounting for rugged assemblies.
• Dual-frequency ripple handling: Specified ripple currents at 120 Hz and 100 kHz cover both low- and high-frequency power noise scenarios.
• Predictable electrical behavior: Defined tanδ and leakage current specifications (0.14 tanδ; 247.5 µA leakage) help engineers model dissipation and standby losses accurately.
• Regulatory compliance: RoHS compliance supports environmental and supply-chain requirements.

Why Choose UBX1E331MHL?

UBX1E331MHL positions itself as a robust, high-temperature aluminum electrolytic capacitor for engineers who need dependable bulk capacitance and ripple performance in challenging thermal environments. Its AEC-Q200 classification and 1000-hour life at 150 °C make it suitable for long-service automotive electronics and high-temperature power subsystems.

With a compact radial-can footprint, clearly specified electrical parameters, and flexible packaging options, UBX1E331MHL is a practical choice for teams designing durable power delivery, smoothing, and energy-buffering stages where uptime and thermal resilience matter.

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