RHA1C391MCNASQGS

The RHA1C391MCNASQGS is a conductive polymer aluminum solid electrolytic capacitor in a surface-mount φ8×8.7 mm can package. It delivers 390 µF capacitance at 16 V with a ±20% tolerance and is specified for general-purpose applications.

Designed for applications requiring low ESR and high ripple handling, this SMD capacitor supports long-term operation up to 105°C with a 5,000-hour endurance rating, making it suitable for robust power-decoupling and bulk energy storage in compact designs.

Key Features

• Dielectric / Construction  Conductive polymer aluminum solid electrolyte construction for stable electrical performance in surface-mount format.
• Capacitance & Tolerance  390 µF nominal capacitance with ±20% tolerance (measured at 120 Hz, 20°C).
• Low Loss (tan δ)  tanδ = 0.12 at 20°C, 120 Hz for predictable AC behavior and loss characterization.
• Low ESR  ESR of 16 mΩ measured at 20°C/100 kHz, enabling lower conduction losses in high-frequency applications.
• High Ripple Current Capability  Rated ripple current of 407 mA at 120 Hz and up to 4.07 A at 300 kHz, supporting both low- and high-frequency power stages.
• Leakage Current  Specified leakage current of 1,248 µA (after 2 minutes at 20°C, rated voltage), useful for predicting standby and bias currents.
• Reliability & Lifetime  Endurance rating of 5,000 hours at 105°C under rated voltage, with specified limits for capacitance change, tanδ and ESR after life test.
• Package & Mounting  Surface-mount radial can (φ8×8.7 mm) with embossed carrier taping and moisture-proof packing for automated assembly; compatible with lead-free reflow peak temperature of 260°C.
• Operating Range  Specified operating temperature range from –55°C to +105°C.
• RoHS Compliance  Compliant with RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• Power supply decoupling  Use as bulk or decoupling capacitance on DC rails where low ESR (16 mΩ) and high ripple capability help stabilize converters and regulators.
• DC‑DC converters  Suitable for input/output filtering in switch‑mode power supplies thanks to high-frequency ripple current rating up to 4.07 A at 300 kHz.
• Industrial and consumer electronics  General-purpose energy storage in compact SMD assemblies that require operation across –55°C to +105°C and long life at elevated temperature.
• High-frequency power modules  Beneficial in designs that demand low impedance at high frequencies due to the low ESR measured at 100 kHz.

Unique Advantages

• Low ESR reduces power loss: 16 mΩ ESR at 100 kHz minimizes conduction losses and helps maintain efficient power delivery in high-frequency circuits.
• Wide ripple bandwidth: Rated ripple current values from 120 Hz to 300 kHz (407 mA at 120 Hz; 4.07 A at 300 kHz) provide predictable performance across common switching frequencies.
• Long high‑temperature life: 5,000-hour endurance at 105°C supports sustained operation in thermally demanding environments.
• SMD assembly ready: φ8×8.7 mm radial can in embossed carrier taping and moisture-proof packing supports automated placement and lead‑free reflow at a 260°C peak.
• Stable loss characteristics: tanδ = 0.12 at 20°C/120 Hz enables reliable AC loss budgeting in design validation.

Why Choose RHA1C391MCNASQGS?

The RHA1C391MCNASQGS positions itself as a compact, surface-mount conductive polymer aluminum capacitor that balances high capacitance and low ESR with robust ripple handling and long-term high-temperature endurance. Its electrical characteristics are specified for both low- and high-frequency ripple conditions, making it a practical choice for designers who need predictable filtering and energy-storage behavior in space-constrained assemblies.

This part is well suited for engineers and procurement teams designing general-purpose power systems, DC‑DC converters, and high-frequency power modules where lifecycle performance at elevated temperature and automated SMD assembly are required. RoHS compliance and standard tape-and-reel packing support modern manufacturing and environmental requirements.

If you would like pricing, availability, or a formal quote for RHA1C391MCNASQGS, please submit a request or contact our sales team to receive a tailored quote and delivery information.