RNL1E391MDS1

The RNL1E391MDS1 is a Nichicon RNL series conductive polymer aluminum solid electrolytic capacitor in a radial-lead, can-style package. It delivers 390 µF capacitance at a 25 V rating with low ESR and high ripple-current capability for general-purpose power-supply decoupling and energy storage in compact assemblies.

Designed for reliable operation from −55 °C to +105 °C and produced for mass deployment, the part combines a compact φ8×16L package and 3.5 mm lead spacing with specifications optimized for high-frequency and low-impedance power rails.

Key Features

• Capacitance & Tolerance — 390 µF nominal capacitance with ±20% tolerance (measured at 120 Hz, 20 °C), suitable for bulk decoupling and smoothing.
• Rated Voltage — 25 V DC rated voltage for mid-voltage power rails.
• Low ESR — ESR of 10 mΩ (20 °C / 100 kHz) to minimize voltage drop and power loss at high frequencies.
• High Ripple Current — 580 mA at 120 Hz (low frequency) and 5.8 A at 300 kHz (high frequency), enabling effective ripple handling across a broad frequency range.
• Loss Tangent — tan δ of 0.12 (measured at 20 °C, 120 Hz) for predictable AC loss characteristics.
• Leakage Current & Endurance — Leakage current 975 µA (after 2 minutes at 20 °C); load life rated 2000 hours at 105 °C.
• Package & Mounting — Radial lead can, φ8×16L (L: 1.6 cm × D: 0.8 cm) with 3.5 mm lead spacing (±0.5 mm). Available in bulk (no terminal forming) or bag packing.
• Regulatory — RoHS compliant; manufactured in mass-production status.

Typical Applications

• Power supply smoothing — Bulk decoupling and output filtering where low ESR and high ripple capability reduce voltage ripple on mid-voltage rails.
• DC–DC converters — Input/output filtering and energy buffering in converter modules that require compact, high-current-capable capacitors.
• Industrial and consumer electronics — General-purpose power rail support in compact assemblies operating across −55 °C to +105 °C.

Unique Advantages

• Low-impedance performance: 10 mΩ ESR at 100 kHz reduces AC losses and improves voltage stability in high-frequency circuits.
• Broad ripple handling: Rated ripple currents of 580 mA (120 Hz) and 5.8 A (300 kHz) enable reliable operation across both low- and high-frequency applications.
• Compact radial package: φ8×16L can with 3.5 mm lead spacing offers a small footprint for higher-density board layouts while retaining through-hole mounting robustness.
• Wide operating range and defined endurance: −55 °C to +105 °C temperature range with 2000 h life at 105 °C for predictable long-term performance in elevated-temperature environments.
• Controlled loss characteristics: tan δ = 0.12 (20 °C, 120 Hz) provides predictable AC behavior for filter and timing networks.
• Production-ready supply: RoHS compliant and in mass production, available in bulk or bag packing for flexible procurement and assembly.

Why Choose RNL1E391MDS1?

The RNL1E391MDS1 positions itself as a compact, high-capacitance conductive polymer solution for engineers needing low ESR and high ripple-current capability in a radial-lead format. Its combination of 390 µF at 25 V, 10 mΩ ESR at 100 kHz, and a rated operating range to +105 °C makes it suitable for applications that demand stable power-rail performance in a small footprint.

Engineered by Nichicon and available in production quantities, this part is appropriate for designers focused on reliable, repeatable performance for general-purpose power filtering, converter modules, and industrial or consumer electronics assemblies that require predictable lifetime and RoHS compliance.

Request a quote or contact sales to obtain pricing, lead time, and ordering details for RNL1E391MDS1.