UBY1H821MHL

The UBY1H821MHL is a radial-lead aluminum electrolytic capacitor offering 820 µF capacitance at a 50 V rated voltage. It is part of Nichicon’s UBY series, optimized for higher capacitance and elevated ripple current performance.

Engineered for automotive control electronics, the capacitor supports high-temperature operation from −40°C to 135°C and meets AEC-Q200 qualification, making it suitable for demanding in-vehicle power and control circuits such as electric power steering and direct injection engine drive.

Key Features

• Capacitance and Tolerance — 820 µF nominal with ±20% tolerance (measured at 120 Hz, 20°C), providing bulk energy storage for power rails and decoupling.
• Rated Voltage — 50 V DC rating for mid-voltage automotive and power electronics applications.
• High Ripple Current — Low-frequency ripple current 1.356 A (120 Hz) and high-frequency ripple current 2.26 A (100 kHz) to handle substantial AC components on DC supplies.
• Low ESR — 44 mΩ ESR measured at 20°C/100 kHz, improving transient response and reducing dissipation under ripple loading.
• High-Temperature Endurance — Rated for operation from −40°C to 135°C with a life/endurance rating of 3000 hours at high temperature.
• Radial Lead Package — Compact can-type radial package with dimensions φ12.5 × 25 mm L and 5.0 mm lead spacing (±0.5 mm), supplied in bulk/bag packing.
• Quality and Compliance — AEC-Q200 qualified and RoHS compliant, aligned with automotive component requirements.

Typical Applications

• Electric Power Steering — Provides bulk filtering and ripple handling for steering control modules requiring stable DC supply under temperature and vibration stress.
• Direct Injection Engine Drive — Supports power smoothing and transient suppression in high-demand fuel injection drive circuits.
• Automotive Control Circuits — General use in vehicle control electronics that require high ripple-current capability and sustained operation up to 135°C.

Unique Advantages

• High ripple-current capability: Specified ripple currents of 1.356 A (120 Hz) and 2.26 A (100 kHz) reduce heating and extend life in AC-loaded DC supplies.
• Robust high-temperature performance: Rated for −40°C to 135°C with a 3000-hour endurance at elevated temperature, supporting long-term reliability in harsh environments.
• Low ESR for improved efficiency: 44 mΩ ESR at 100 kHz lowers loss and improves transient performance in power systems.
• AEC-Q200 qualified and RoHS compliant: Meets automotive-grade qualification and environmental compliance for deployment in vehicle systems.
• Compact radial can: φ12.5 × 25 mm form factor with 5 mm lead spacing simplifies PCB layout for through-hole assembly while delivering high capacitance density.
• Series performance advantage: UBY series offers higher capacitance and higher ripple current compared with earlier UBT and UBW series models, enabling more compact power designs.

Why Choose UBY1H821MHL?

The UBY1H821MHL combines high capacitance, low ESR, and elevated ripple-current ratings in a compact radial-lead can tailored for automotive control electronics. Its AEC-Q200 qualification and RoHS compliance provide the traceable quality and environmental conformance required for vehicle systems.

This capacitor is well suited to designers and OEMs building power and control modules that demand sustained performance at temperatures up to 135°C, such as steering, injection and other high-power automotive control circuits. Choosing the UBY1H821MHL supports robust, long-life designs where ripple handling and thermal endurance are priorities.

Request a quote or contact sales to discuss pricing, availability, and lead times for UBY1H821MHL.