UBY1K821MHL6

The UBY1K821MHL6 is a miniature, high‑reliability aluminum electrolytic capacitor from Nichicon’s UBY series in a radial‑lead can package. Designed for demanding environments, it combines high capacitance (820 µF) with an 80 V rating and a wide operating temperature range.

Its targeted use cases include automotive and harsh‑environment power circuits where high ripple handling, low ESR, and elevated temperature endurance are required.

Key Features

• Capacitance & Voltage — 820 µF nominal capacitance with an 80 V rated voltage and ±20% tolerance at 120 Hz, 20°C.
• High Temperature Operation — Specified for operation from −40°C to 135°C with endurance rated for 2000 hours at 135°C (for 63–100 V range).
• High Ripple Current Capability — Low‑frequency ripple current of 1.686 A (120 Hz) and high‑frequency ripple current of 2.81 A (100 kHz) to support heavy power filtering and transient loads.
• Low Impedance / Low ESR — ESR of 35 mΩ measured at 20°C / 100 kHz, supporting efficient ripple dissipation and reduced heat generation.
• Leakage and Loss Angle — Leakage current specified at 1968 µA and tanδ (loss tangent) of 0.08 at 20°C, 120 Hz.
• Package & Form Factor — Radial lead can, size φ18 × 25 mm (diameter × length) with 7.5 mm lead spacing (±0.5 mm); available in bulk (no terminal forming) or bag packing.
• Quality & Compliance — AEC‑Q200 qualified and RoHS compliant for high‑reliability applications.

Typical Applications

• Electric Power Steering — Bulk energy storage and smoothing for steering control electronics operating in elevated temperatures.
• Direct Injection Engine Drive — Filtering and decoupling in injection control modules where high ripple handling and temperature resilience are required.
• Automotive Control Circuits — General power rail stabilization and transient suppression in vehicle control units that demand AEC‑Q200 qualified components.
• High‑Temperature Power Supplies — DC link and smoothing applications in systems exposed to sustained high ambient temperatures.

Unique Advantages

• Designed for high ripple environments: Specified low‑ and high‑frequency ripple currents (1.686 A @120 Hz, 2.81 A @100 kHz) support robust power filtering under dynamic loads.
• Thermal endurance: Rated endurance of 2000 hours at 135°C (for 63–100 V) enables deployment in elevated‑temperature electronics.
• Low ESR for improved efficiency: 35 mΩ ESR at 20°C / 100 kHz reduces losses and heat generation in high‑current applications.
• Automotive‑grade qualification: AEC‑Q200 qualification provides traceable reliability metrics for vehicle electronics and other high‑reliability systems.
• Compact radial can package: φ18 × 25 mm size with 7.5 mm lead spacing offers a high‑capacitance, space‑efficient option for through‑hole assemblies.
• Production ready: Mass production status and RoHS compliance support volume sourcing and regulatory requirements.

Why Choose UBY1K821MHL6?

The UBY1K821MHL6 positions itself as a high‑reliability, high‑capacitance radial electrolytic capacitor for applications that demand sustained performance at elevated temperatures. With an 80 V rating, substantial ripple current capability, low ESR, and AEC‑Q200 qualification, it is tailored for automotive control electronics and other harsh‑environment power systems.

Engineers specifying this part benefit from a compact form factor, established production availability, and measurable electrical characteristics—supporting durable designs where thermal endurance and ripple handling are critical.

If you would like pricing, availability, or technical support for UBY1K821MHL6, request a quote or contact the sales team to submit a parts inquiry.