UBY1K511MHL

The UBY1K511MHL is a radial-lead, miniature aluminum electrolytic capacitor from Nichicon’s UBY series designed for high-reliability, high-temperature applications. This polarized capacitor delivers 510 µF at an 80 V rating in a compact φ12.5 × 30.5 mm can and is offered in bulk or bag packing for production use.

Targeted for automotive control circuits and other high-temperature, high-ripple environments, the part combines high ripple-current capability, low ESR, and long endurance at elevated temperatures to support demanding power-electronics applications.

Key Features

• Capacitance and Voltage: 510 µF nominal capacitance with an 80 V rated voltage and a capacitance tolerance of -20% to +20%.
• High-temperature endurance: Rated for operation from -40°C to +135°C with endurance of 2000 hours at 135°C (applicable to 63–100 V rated parts).
• High ripple-current capability: Low-frequency ripple current of 1.315 A (120 Hz) and high-frequency ripple current of 2.63 A (100 kHz) to support power smoothing under dynamic load conditions.
• Low impedance / ESR: ESR of 42 mΩ measured at 20°C/100 kHz for reduced loss and improved thermal performance.
• Leakage and dissipation: Leakage current listed at 1224 µA; tangent of loss angle (tanδ) of 0.08 at 80 V (measured at 20°C, 120 Hz).
• Package and mounting: Radial lead can with φ12.5 mm diameter and 30.5 mm length, 5.0 mm lead spacing (±0.5 mm), and available in bulk (no terminal forming) or bag packing.
• Qualification and compliance: AEC-Q200 qualified and RoHS compliant, indicating suitability for automotive electronics and regulated markets.
• Production status: Mass production availability for consistent supply in volume designs.

Typical Applications

• Electric power steering systems: Used for bulk capacitance and ripple filtering in steering control electronics where high ripple current and elevated temperature capability are required.
• Direct injection engine drive circuits: Provides stable decoupling and energy buffering for fuel injection and engine control modules operating in high-temperature environments.
• Automotive control circuits: General use across automotive ECUs and power electronics that demand AEC-Q200 qualification and sustained performance to +135°C.

Unique Advantages

• Designed for high-temperature operation: Rated to +135°C with specified endurance (2000 hours at 135°C for 63–100 V), enabling reliable performance in hot environments.
• Robust ripple handling: Significant low- and high-frequency ripple current ratings reduce stress on the capacitor under dynamic load conditions.
• Low ESR for efficiency: 42 mΩ ESR at 100 kHz lowers dissipation and supports compact thermal management in dense assemblies.
• AEC-Q200 qualification: Explicit qualification for automotive electronics simplifies component selection for vehicle control systems.
• Compact radial form factor: φ12.5 × 30.5 mm can and 5 mm lead spacing provide a small-footprint, through-hole solution for power filtering and energy storage.
• RoHS compliant and production-ready: Environmentally compliant and available in mass-production quantities with flexible packing options.

Why Choose UBY1K511MHL?

The UBY1K511MHL positions itself where high-temperature endurance, strong ripple-current capability, and low impedance are required. Its combination of 510 µF at 80 V, AEC-Q200 qualification, and 2000-hour endurance at 135°C make it suited to automotive control electronics and other demanding power-electronics designs.

Engineers specifying this Nichicon radial-lead capacitor gain a compact, production-ready component that addresses elevated-temperature reliability and ripple handling while remaining RoHS compliant and available in volume. It is appropriate for designs that prioritize sustained performance under thermal and electrical stress.

Request a quote or contact our sales team to discuss availability, lead times, and bulk packaging options for UBY1K511MHL.