RKS1D221MCNAHJGS

The RKS1D221MCNAHJGS is a surface-mount conductive polymer aluminum solid electrolytic capacitor from Nichicon’s RKS series. It delivers 220 µF at 20 V in a compact radial can SMD package (φ8 × 10 mm) with polarized construction and ±20% tolerance.

Designed for general-purpose electronic designs that require high capacitance in a small footprint, this part offers low ESR, high allowable ripple current, and extended high-temperature endurance for reliable operation across –55°C to 125°C.

Key Features

• Capacitance & Voltage — 220 µF rated capacitance at 20 V with a tolerance of -20% to +20% for predictable energy storage and decoupling.
• Low ESR & Loss — ESR specified at 25 mΩ (measured at 100 kHz, 20°C) and tanδ of 0.12 (at 120 Hz, 20°C) to reduce losses and improve filtering performance at high frequencies.
• High Ripple Current Capability — Low-frequency ripple current of 170 mA (120 Hz) and high-frequency ripple current of 1.7 A (300 kHz) to handle switching and high-frequency load conditions.
• Broad Temperature Range & Long Life — Rated for -55°C to 125°C with a load life of 3000 hours at 125°C for robust performance in elevated-temperature environments.
• SMD Can Package — Compact φ8 × 10 mm radial can designed for surface-mount assembly with embossed carrier taping and moisture-proof packing for automated placement.
• Manufacturing & Reflow — Compatible with lead-free reflow soldering conditions up to a 260°C peak (reflow soldering up to two times maximum) per series specification.

Typical Applications

• Power supply decoupling — Bulk and decoupling capacitance for power rails where compact, high-capacitance SMD parts are required.
• DC–DC converter output filtering — Supports high-frequency switching environments with low ESR and high ripple current capability.
• Industrial and consumer electronics — General-purpose energy storage and smoothing across a wide temperature range for robust operation.

Unique Advantages

• High ripple tolerance: Rated high-frequency ripple current of 1.7 A (300 kHz) enables use in switching regulator and high-speed power circuits.
• Low loss at high frequency: 25 mΩ ESR at 100 kHz and a low tanδ help minimize heat generation and improve filtering efficiency.
• Extended high-temperature life: 3000 hours endurance at 125°C provides predictable lifetime performance in thermally demanding designs.
• Compact SMD form factor: φ8 × 10 mm radial can SMD package saves PCB space while supporting automated assembly with embossed carrier taping and moisture-proof packing.
• Lead-free reflow compatibility: Specified for lead-free reflow up to a 260°C peak, aligning with modern assembly processes.

Why Choose RKS1D221MCNAHJGS?

RKS1D221MCNAHJGS positions itself as a reliable, compact solution for designers needing high capacitance and strong ripple-handling in a surface-mount conductive polymer aluminum capacitor. Its combination of low ESR, defined tanδ, and extended 3000-hour life at 125°C makes it suitable for demanding general-purpose power and filtering roles across industrial and consumer products.

Manufactured by Nichicon as part of the RKS series and supplied in embossed carrier taping with moisture-proof packing, it supports streamlined production and consistent performance over time for engineering teams focused on durability and predictable electrical behavior.

For pricing, availability, or to request a quote for RKS1D221MCNAHJGS, please submit a request and our team will respond with a quote and lead-time details.