UHE2A681MHD

The UHE2A681MHD is a miniature, radial-lead aluminum electrolytic capacitor in Nichicon’s UHE series. It delivers 680 µF of capacitance at a 100 V rating in a compact φ18 × 35.5 mm can with 7.5 mm lead spacing for through-hole mounting.

Engineered for general-purpose power applications that require robust ripple handling and long life, this polarized capacitor combines low impedance, measurable high-frequency ripple capability, and a wide operating temperature range (−40 °C to 105 °C) with a rated endurance of 10,000 hours at 105 °C.

Key Features

• Capacitance & Voltage: 680 µF rated capacitance at 100 V for high-voltage smoothing and energy storage needs.
• Low Impedance: 150 mΩ impedance to reduce voltage drop under AC ripple and improve transient response.
• Ripple Current Performance: Low-frequency ripple current 1.417 A (120 Hz) and high-frequency ripple current 1.89 A (10 kHz) for effective filtering across a range of frequencies.
• Dielectric Loss (tan δ): tanδ of 0.08 measured at 20 °C and 120 Hz, indicating controlled loss characteristics for stable operation.
• Leakage Current: Specified leakage current of 680 µA, measured after rated voltage application conditions.
• Long Life & Reliability: Rated endurance of 10,000 hours at 105 °C, per UHE series specifications for extended service in high-temperature environments.
• Compact Radial Package: Radial can (φ18 × 35.5 mm) with 7.5 mm lead spacing and 0.8 mm lead diameter for reliable through-hole assembly.
• Polarized, General-Purpose Use: Designed as a polarized aluminum electrolytic capacitor suitable for general-purpose power electronics applications.
• Compliance & Availability: RoHS-compliant and listed as in mass production; available in bulk (no terminal forming) or bag packing.

Typical Applications

• Power supply smoothing and filtering: 680 µF at 100 V with low impedance and rated ripple currents makes this capacitor suitable for smoothing DC rails and reducing output ripple in high-voltage supplies.
• High-voltage energy storage: Compact 100 V-rated capacitance for energy buffering and hold-up in power conversion systems.
• Industrial and commercial power electronics: Long 10,000 hour life at 105 °C and wide temperature range (−40 °C to 105 °C) support sustained operation in demanding ambient conditions.
• General-purpose electronic assemblies: Radial-lead form factor and standard lead spacing simplify integration into through-hole PCBs for a variety of general-purpose designs.

Unique Advantages

• High-voltage capability: 100 V rating provides margin for high-voltage DC rails and applications requiring elevated working voltages.
• Improved ripple handling: Combined low impedance (150 mΩ) and specified ripple currents (1.417 A at 120 Hz; 1.89 A at 10 kHz) enable effective suppression of AC components across frequency bands.
• Extended operational life: 10,000 hours at 105 °C supports long-term reliability in continuously powered applications.
• Compact radial can package: φ18 × 35.5 mm size with 7.5 mm lead spacing offers a space-efficient through-hole solution for PCB layouts.
• Controlled dielectric loss and leakage: tanδ of 0.08 (20 °C, 120 Hz) and defined leakage current help predict thermal and electrical behavior in design margins.
• RoHS-compliant and production-ready: Environmental compliance and mass-production status ease procurement and regulatory planning.

Why Choose UHE2A681MHD?

UHE2A681MHD is positioned for designs that require a reliable, high-voltage aluminum electrolytic capacitor with low impedance, solid ripple performance, and extended lifetime at elevated temperatures. Its combination of 680 µF capacitance, 100 V rating, and specified ripple currents makes it a practical choice for engineers balancing voltage headroom, smoothing capability, and long-term durability.

Suitable for general-purpose power electronics, industrial supplies, and other applications where through-hole mounting and predictable electrical behavior are required, the UHE2A681MHD offers a clear specification set to simplify selection and integration into production designs.

Request a quote or contact sales to discuss availability, packaging options, and to obtain pricing or lead-time information for UHE2A681MHD.