RKS1D390MCNAHGGS

The RKS1D390MCNAHGGS is a surface-mount conductive polymer aluminum electrolytic capacitor delivering 39 µF at 20 V with polarized construction. Designed for SMD power applications, it provides low ESR and high allowable ripple current in a compact φ8 × 7.7 mm package suitable for reflow assembly.

With an operating temperature range of −55°C to 125°C and a rated load life of 3000 hours at 125°C, this part targets designs requiring durable high-temperature performance, stable capacitance, and dependable leakage and ESR characteristics over long-term operation.

Key Features

• Capacitance & Voltage — 39 µF rated capacitance at 20 V with tolerance of −20% to +20% for predictable bulk and decoupling behavior.
• Low ESR — ESR of 30 mΩ measured at 20°C, 100 kHz, reducing losses and heat generation in high-frequency circuits.
• High Ripple Current Capability — Low-frequency ripple current of 160 mA (120 Hz) and high-frequency ripple current of 1.6 A (300 kHz) to support switching power stages and converters.
• High-Temperature Endurance — Rated for 3000 hours at 125°C, supporting sustained operation in elevated-temperature environments.
• Leakage and Loss Characteristics — Leakage current specified at 100 µA and tan δ (DF) of 0.12 (20°C, 120 Hz), enabling controlled loss and leakage behavior.
• SMD Package & Reflow Compatibility — φ8 × 7.7 mm radial can (SMD) package with embossed carrier taping and moisture-proof packing; compatible with lead-free reflow soldering up to a 260°C peak profile per the series soldering specification.
• Wide Temperature Range — Operates from −55°C to +125°C for resilience across thermal extremes.
• RoHS Compliant — Meets RoHS requirements for restricted substances.

Typical Applications

• Switching power supplies — Bulk filtering and output decoupling where high-frequency ripple current capability and low ESR improve regulator stability and efficiency.
• DC-DC converters — SMD-compatible capacitor for input/output stages that require compact size with high ripple handling and long-term thermal endurance.
• Industrial and telecom electronics — Power modules and assemblies operating at elevated temperatures that demand consistent capacitance and reliable leakage characteristics over extended life.

Unique Advantages

• High-temperature reliability: Rated 3000 hours at 125°C, providing extended endurance for thermally challenging installations.
• Low-loss operation: 30 mΩ ESR at 100 kHz and tan δ of 0.12 minimize dissipation in high-frequency applications.
• Strong ripple handling: 1.6 A high-frequency ripple current rating supports modern switching topologies and reduces the need for external mitigation.
• Compact SMD form factor: φ8 × 7.7 mm package reduces board area while supporting automated placement and reflow processes.
• Controlled leakage: Leakage current specified at 100 µA for predictable bias behavior in standby and active states.
• Manufacturing-ready packing: Supplied on embossed carrier tape with moisture-proof packing to streamline SMT assembly flow.

Why Choose RKS1D390MCNAHGGS?

The RKS1D390MCNAHGGS couples conductive polymer aluminum electrolytic technology with a compact SMD can to deliver low ESR, high ripple capability, and long-term thermal endurance. Its specification set—39 µF at 20 V, 30 mΩ ESR, 1.6 A high-frequency ripple current, and 3000-hour life at 125°C—makes it suited to designers needing reliable power filtering and decoupling in space-constrained, high-temperature assemblies.

This part is appropriate for engineers and procurement teams building switching power stages, DC-DC converters, and industrial electronics where predictable electrical behavior, reflow compatibility, and RoHS compliance are required for volume production and long-term field reliability.

Request a quote or submit a pricing inquiry for RKS1D390MCNAHGGS to check availability and volume pricing for your project.