UBT1E332MHD

The UBT1E332MHD is a radial-lead aluminum electrolytic capacitor offering 3.3 mF (3300 µF) capacitance at a 25 V rating. Designed for high-temperature duty, it supports operation from –40°C to +125°C and delivers long endurance under elevated-temperature stress.

Targeted for demanding power-electronic applications, this polarized radial can combines high capacitance, significant ripple-handling capability, and automotive-grade reliability for robust DC filtering, smoothing and decoupling in harsh environments.

Key Features

• Capacitance & Tolerance — 3.3 mF (3300 µF) with ±20% tolerance at 120 Hz, 20°C for bulk energy storage and smoothing.
• Rated Voltage — 25 V DC rating suitable for common low-voltage power rails.
• High-Temperature Endurance — Designed for continuous operation from –40°C to +125°C with a rated life of 10,000 hours at 125°C.
• Ripple Current Capability — Low-frequency ripple current 2.218 A (120 Hz) and high-frequency ripple current 3.31 A (100 kHz), enabling effective performance across switching and linear power stages.
• Loss and Leakage — Dissipation factor (tan δ) 0.18 (20°C, 120 Hz) and measured leakage current of 2475 µA as specified for this part.
• Mechanical & Mounting — Radial-lead, can-type package with dimensions φ18 × 30.5 mm (diameter × length) and 7.5 mm lead spacing (±0.5 mm).
• Automotive Qualification & Compliance — AEC-Q200 qualified and RoHS compliant, suitable for automotive electronics and other regulated applications.
• Packaging — Available in bulk (no terminal forming) and bag packing to suit assembly and inventory needs.

Typical Applications

• Automotive Power Electronics — Filtering and energy buffering in ECUs, power distribution modules and control units that require AEC-Q200-qualified components and extended high-temperature life.
• DC–DC Converters — Input/output smoothing and ripple suppression on 25 V rails where high ripple current tolerance improves regulator stability and lifetime.
• Motor Control and Drive Systems — Bulk capacitance for transient energy delivery and smoothing in motor inverters and drive electronics operating across wide temperatures.
• Industrial Power Supplies — Bulk filtering and decoupling in industrial controllers and power subsystems exposed to elevated ambient temperatures.

Unique Advantages

• Long High-Temperature Life: 10,000 hours at 125°C provides extended service life in thermally demanding applications.
• Strong Ripple Handling: Specified low- and high-frequency ripple currents (2.218 A @120 Hz, 3.31 A @100 kHz) support switching and linear power topologies.
• Automotive-Grade Reliability: AEC-Q200 qualification supports use in automotive electronics and other applications requiring automotive-level component screening.
• Compact Radial Can: φ18 × 30.5 mm package and standard 7.5 mm lead spacing enable straightforward through-hole mounting and replacement in legacy and new designs.
• Regulatory Compliance: RoHS compliant construction aligns with regulatory and manufacturing requirements.
• Practical Packaging Options: Available in bulk or bag packing to match assembly flow and handling preferences.

Why Choose UBT1E332MHD?

UBT1E332MHD is positioned for designers who need high-capacitance, high-temperature performance with automotive-grade reliability. Its 3.3 mF capacitance, 25 V rating, and demonstrated ripple capability make it suitable for demanding DC filtering and energy-storage roles in power electronics.

With AEC-Q200 qualification, a –40°C to +125°C operating range, and 10,000-hour endurance at 125°C, this part offers a combination of robustness and predictable long-term behavior for designs deployed in harsh thermal environments.

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