RPS1E391MCN1GS

The RPS1E391MCN1GS from Nichicon is a surface-mount conductive polymer aluminum solid electrolytic capacitor in the RPS series, offering 390 µF capacitance at a 25 V rating. Designed for general-purpose electronic designs, it combines low ESR and high ripple-current capability in a compact φ10 × 12.4 mm SMD can.

Key value propositions include measurable low-loss characteristics (tanδ 0.12 at 20 °C/120 Hz), defined high-frequency ESR performance (16 mΩ at 20 °C/100 kHz), and a specified endurance of 2000 hours at 105 °C—attributes targeted at power-handling and high-density surface-mount applications.

Key Features

• Capacitance & Tolerance — 390 µF nominal capacitance with tolerance of −20% to +20% at 20 °C/120 Hz.
• Rated Voltage — 25 V DC rated voltage for a wide range of mid-voltage designs.
• Low Loss / Dielectric Performance — tanδ (DF) 0.12 measured at 20 °C, 120 Hz for predictable dissipation factor in typical test conditions.
• Low ESR at High Frequency — ESR specified at 16 mΩ (20 °C/100 kHz), supporting stable impedance in high-frequency circuits.
• High Ripple Current Capability — Rated ripple current of 480 mA at 120 Hz (low frequency) and 4.8 A at 300 kHz (high frequency), for effective ripple absorption across frequency ranges.
• Leakage Current — Specified leakage current 1950 µA (after 2 minutes at 20 °C), useful for predictable bias budgeting.
• Reliability & Endurance — Load life specified as 2000 hours at 105 °C under rated voltage; capacitance, tanδ, and ESR limits are defined for end-of-life criteria.
• Temperature Range — Operational range from −55 °C to +105 °C to cover a broad set of ambient conditions.
• Surface-Mount Package — φ10 × 12.4 mm SMD radial can with recommended land size L: 1.03 × W: 1.03 cm; supplied in embossed carrier taping with moisture-proof packing for automated assembly.
• Compliance — RoHS compliant.

Typical Applications

• Power supply filtering — Low ESR (16 mΩ at 100 kHz) and rated ripple current up to 4.8 A at 300 kHz make this capacitor suitable for output and bulk filtering in power rails.
• DC‑DC converter output stages — The combination of 390 µF capacitance and high-frequency ripple capability supports smoothing and stability in switching regulator outputs.
• General-purpose SMD assemblies — Compact φ10 × 12.4 mm SMD can and tape-and-reel style packing simplify placement in high-density circuit boards for a variety of electronic products.
• Industrial and commercial electronics — Specified operating range (−55 °C to 105 °C) and a defined 2000‑hour life at 105 °C provide predictable performance for long-term deployments.

Unique Advantages

• Quantified low ESR — 16 mΩ at 20 °C/100 kHz provides a measured impedance baseline for designers balancing ripple and stability.
• Broad ripple-frequency capability — Rated ripple current values at both low (480 mA at 120 Hz) and high frequencies (4.8 A at 300 kHz) allow a single component to address mixed-frequency ripple environments.
• Defined endurance specification — 2000 hours at 105 °C under rated voltage gives a clear reliability target for thermal and load planning.
• SMD readiness and packaging — Embossed carrier taping with moisture-proof packing supports automated surface-mount assembly and storage handling.
• Wide operating temperature — −55 °C to +105 °C supports designs that require thermal margin across diverse environments.
• RoHS compliance — Meets RoHS requirements where restricted substances regulation is needed.

Why Choose RPS1E391MCN1GS?

RPS1E391MCN1GS positions itself as a measurement-driven SMD capacitor option within Nichicon’s RPS series for engineers who require clearly specified low ESR, high ripple-current handling, and defined endurance at elevated temperatures. Its conductive polymer aluminum solid electrolyte construction and quantified electrical parameters make it suitable for mid-voltage power delivery and general-purpose surface-mount applications where performance and predictable life are required.

This part is offered in a compact φ10 × 12.4 mm SMD can, supplied for automated assembly, and is in mass production—making it appropriate for designs and production runs that need both consistency and logistical readiness.

Request a quote or submit an inquiry to sales for pricing, availability, and lead-time information for RPS1E391MCN1GS.