UBW1H331MHD

The UBW1H331MHD is a radial-lead aluminum electrolytic capacitor designed for high-temperature, long-life applications. It delivers 330 µF at 50 V in a compact φ12.5 × 20 mm can with 5 mm lead spacing, offering low impedance and high ripple-handling capability.

Targeted for demanding environments, this part combines a wide operating temperature range (−55 °C to +135 °C), AEC‑Q200 qualification, and a 3000-hour life rating at 135 °C, making it suitable for robust power filtration and energy-storage duties in industrial and automotive electronic systems.

Key Features

• Capacitance & Voltage — 330 µF rated capacitance at 50 V for bulk decoupling, smoothing, and energy storage in power electronics.
• High‑Temperature Endurance — Rated for operation from −55 °C to +135 °C with a specified lifetime of 3000 hours at 135 °C (φ12.5 case), supporting sustained performance in hot environments.
• AEC‑Q200 Rated — Engineered to meet AEC‑Q200 passive component requirements, supporting use in systems that require automotive‑grade passive qualification.
• Low Loss & Leakage — Low tangent of loss angle (tan δ = 0.10) and specified leakage current (495 µA) for stable performance in filtering and hold-up applications.
• Low Impedance & High Ripple Capability — 70 mΩ impedance with ripple current ratings of 891.1 mA at 120 Hz and 1.33 A at 10 kHz for effective AC ripple management.
• Radial Lead Can Package — φ12.5 mm can, 20 mm length, 5 mm lead spacing, radial-lead mounting for through-hole assemblies and robust mechanical retention.
• Production & Packaging — Available in bulk/bag packaging and listed as mass production status for design continuity and supply planning.

Typical Applications

• Automotive Power Electronics — Bulk energy storage and smoothing in control modules and power converters where AEC‑Q200 qualification and high-temperature life are required.
• Industrial Drives & Inverters — DC-link smoothing and ripple suppression in variable-speed drives and inverter stages operating at elevated temperatures.
• Power Supplies — Output filtering and hold-up capacitors for high-voltage, high-temperature power supply designs.
• Embedded & Control Systems — Local decoupling and energy buffering for control electronics exposed to wide temperature swings.

Unique Advantages

• High-Temperature Reliability: 3000 hours at 135 °C life rating ensures predictable end-of-life behavior in hot operating environments.
• Automotive-Grade Qualification: AEC‑Q200 rating provides traceable passive-component qualification for automotive and similarly demanding applications.
• Compact Through-Hole Form Factor: φ12.5 × 20 mm can with 5 mm lead spacing delivers high capacitance in a small footprint for space‑constrained boards.
• Effective Ripple Handling: Specified ripple current ratings at both 120 Hz and 10 kHz support AC ripple suppression across common switching and line frequencies.
• Low Impedance & Stable Loss: 70 mΩ impedance and tan δ = 0.10 help maintain low ESR-related losses and thermal rise in power circuits.
• Production-Ready Packaging: Bulk/bag packaging and mass production status support predictable procurement and assembly workflows.

Why Choose UBW1H331MHD?

The UBW1H331MHD delivers a balanced combination of high capacitance, low impedance, and long-term high-temperature endurance in a compact radial-lead can. Its AEC‑Q200 qualification and 3000-hour rating at 135 °C make it a practical choice for designers building robust power systems for automotive and industrial applications that require predictable performance over extended thermal exposure.

This capacitor is well suited to engineers and procurement teams seeking a reliable through-hole energy-storage component that simplifies thermal and mechanical design constraints while providing clear, verifiable electrical characteristics for system-level budgeting of ripple, leakage, and ESR.

Request a quote or submit a product inquiry to obtain pricing, lead-time, and availability for UBW1H331MHD. Our team can provide order details and support for volume planning and integration into your BOM.