UBT1K331MHD

The UBT1K331MHD is a radial-lead aluminum electrolytic capacitor providing 330 µF capacitance at an 80 V rating with ±20% tolerance. Designed for high-temperature operation, it supports an operating range from −40°C to +125°C and a rated endurance of 5000 hours at 125°C.

Suited for applications that require durable power filtering and high-voltage smoothing—including automotive electronics thanks to its AEC-Q200 qualification—this capacitor combines measurable ripple-current capability and controlled leakage for reliable performance in demanding environments.

Key Features

• Capacitance & Voltage: 330 µF nominal capacitance with an 80 V rated voltage and ±20% tolerance for stable energy storage on higher-voltage rails.
• High-Temperature Endurance: Rated for operation from −40°C to +125°C with a life/endurance specification of 5000 hours at 125°C, supporting sustained use in elevated-temperature environments.
• Ripple Current Capability: Low-frequency ripple current 931.3 mA at 120 Hz and high-frequency ripple current 1.39 A at 100 kHz to handle AC components on DC rails across a range of switching frequencies.
• Controlled Leakage: Specified leakage current of 792 µA to assist in predictable power-loss budgeting and system-level leakage management.
• Package & Mounting: Radial lead, can-type package with φ12.5 × 30.5 mm dimensions (L: 3.05 × D: 1.25 cm) and 5 mm lead spacing (±0.5 mm) for through-hole assembly and robust mechanical anchoring.
• Automotive-Grade Qualification & Compliance: AEC-Q200 qualified and RoHS compliant, suitable for automotive electronic designs requiring component-level reliability and environmental compliance.
• Packaging Options: Available in bulk (no terminal forming) and bag packing to accommodate different production handling and assembly workflows.

Typical Applications

• Automotive Power Electronics: Bulk energy storage and smoothing in automotive control modules where AEC-Q200 qualification and +125°C endurance are required.
• Power Supply Filtering: Input/output decoupling and smoothing on higher-voltage DC rails up to 80 V, benefiting from the capacitor’s ripple-current ratings.
• Industrial Control: Energy buffering and transient suppression in industrial control circuits exposed to elevated temperatures and continuous stress.

Unique Advantages

• High-temperature reliability: 5000 hours endurance at 125°C provides a known lifetime metric for thermal-stressed designs.
• Measurable ripple handling: Specified low- and high-frequency ripple current ratings give designers quantifiable tolerance for AC content on DC rails.
• Automotive-capable: AEC-Q200 qualification and a wide operating temperature range support deployment in vehicle electronic systems.
• Predictable leakage: Defined leakage current (792 µA) aids in precise power-loss and standby calculations.
• Through-hole robustness: Radial-lead can package with defined lead spacing simplifies prototyping and through-hole assembly for mechanically robust installations.
• Regulatory compliance: RoHS compliance supports environmentally regulated product lines and supply chains.

Why Choose UBT1K331MHD?

UBT1K331MHD is positioned for designs that require a dependable, high-temperature aluminum electrolytic capacitor capable of supporting higher-voltage rails and significant ripple currents. Its defined endurance at +125°C, AEC-Q200 qualification, and measurable electrical characteristics make it suitable for engineers specifying components for thermally demanding and reliability-focused applications.

This part is ideal for teams designing automotive electronics, industrial controls, or power-supply systems that need a through-hole capacitor with predictable leakage, ripple handling, and long-term thermal performance backed by clear specification values.

Request a quote or contact sales to discuss availability, lead times, and suitability for your design requirements.