UBT2G220MHD8

The UBT2G220MHD8 is a radial-lead aluminum electrolytic capacitor in Nichicon’s UBT series, specified at 22 µF and 400 V. It is designed for high-temperature, high-voltage applications and delivers long endurance and stable performance where elevated operating temperatures and sustained ripple are present.

Key use cases include automotive and other heavy‑duty electronic power circuits that require AEC‑Q200 qualification, high ripple handling, low leakage and wide operating temperature range up to 125 °C.

Key Features

• Capacitance & Voltage: 22 µF rated capacitance at 400 V provides energy storage and smoothing for high-voltage power rails.
• High‑Temperature Endurance: Designed for operation from −25 °C to 125 °C with a specified life of 2000 hours at 125 °C.
• Loss Tangent (tan δ): tan δ = 0.24 measured at 20 °C, 120 Hz and 400 V, enabling designers to evaluate equivalent series losses under specified conditions.
• Ripple Current Capability: Low‑frequency ripple current 142 mA at 120 Hz and high‑frequency ripple current 255.6 mA at 100 kHz for mixed-frequency power environments.
• Low Leakage: Leakage current specified at 452 µA supports minimized standby losses and predictable bias behavior.
• Robust Package & Mounting: Radial can package with φ12.5 × 30.5 mm body and 5 mm lead spacing (±0.5 mm), available in bulk or bag packing for flexible assembly options.
• Automotive‑grade Qualification: AEC‑Q200 rated and suited for automobile electronics where heavy‑duty service is required.
• Environmental Compliance: RoHS‑compliant construction.

Typical Applications

• Automotive power electronics: Energy storage and smoothing for high-voltage subsystems that require AEC‑Q200 qualification and high‑temperature endurance.
• Industrial power supplies: Bulk decoupling and ripple attenuation in high‑voltage converters and motor drives operating at elevated temperatures.
• Energy conversion systems: DC bus support and transient suppression where compact, high‑voltage electrolytic capacitors are needed.

Unique Advantages

• High‑temperature reliability: Rated to 125 °C with a specified 2000‑hour life at that temperature, enabling designs that operate in thermally demanding environments.
• Automotive qualification: AEC‑Q200 rating provides a documented level of suitability for automotive electronic applications.
• Measured loss characteristics: Specified tan δ at 20 °C/120 Hz and 400 V allows accurate modeling of dissipation in design simulations.
• Dual‑frequency ripple performance: Separate low‑frequency and high‑frequency ripple current specifications (120 Hz and 100 kHz) support mixed‑frequency power designs.
• Predictable leakage: Specified leakage current enables reliable bias management and power budgeting in restrained current designs.
• Compact radial can footprint: φ12.5 mm diameter and 30.5 mm length with 5 mm lead spacing simplifies placement in constrained power assemblies.

Why Choose UBT2G220MHD8?

UBT2G220MHD8 combines high‑voltage (400 V) capability with high‑temperature endurance and automotive‑grade qualification, making it a solid choice for applications that demand stable capacitance, controlled dissipation, and reliable ripple handling under elevated temperatures. Its defined electrical characteristics—capacitance tolerance, tan δ, leakage and ripple ratings—allow engineers to design with predictable performance margins.

This part is well suited to designers building robust power and automotive systems who need a compact radial electrolytic solution that is RoHS‑compliant and backed by the UBT series specifications for endurance and thermal performance.

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