RKS1H470MCNAHHGS

The RKS1H470MCNAHHGS is a surface-mount conductive polymer aluminum electrolytic capacitor offering 47 µF capacitance at a 50 V rating. It combines low ESR and high allowable ripple current with an extended operating temperature range to support demanding power decoupling and smoothing tasks on SMD assemblies.

Designed for elevated-temperature operation, the part delivers a specified load life of 3000 hours at 125°C and is produced in an embossed carrier taping format for automated placement and reflow assembly.

Key Features

• Capacitance & Tolerance — 47 µF nominal capacitance with tolerance of −20% to +20% (measured at 20°C, 120 Hz).
• Rated Voltage — 50 V DC rating suitable for mid-voltage power rails.
• Low ESR — 30 mΩ equivalent series resistance measured at 20°C / 100 kHz, supporting efficient high-frequency performance.
• High Ripple Current — Low-frequency ripple current of 160 mA (120 Hz) and high-frequency ripple capability of 1.6 A (300 kHz) for handling dynamic load currents.
• Wide Temperature Range — Specified for operation from −55°C to +125°C.
• Long Endurance — Load life rated to 3000 hours at 125°C under rated voltage conditions.
• SMD Package & Assembly — Radial can SMD package (φ8 × 8.7 mm) in embossed carrier taping; compatible with lead‑free reflow soldering (peak temperatures up to 260°C per datasheet conditions).
• RoHS Compliant — Manufactured in compliance with RoHS directives.

Typical Applications

• Power rail decoupling — Provides bulk and high-frequency decoupling on 50 V rails where 47 µF and low ESR improve transient response.
• Switch-mode power supplies — Handles high-frequency ripple currents (1.6 A at 300 kHz) for output filtering and energy storage in converter stages.
• High-temperature electronics — Suitable for modules and assemblies that require reliable capacitor performance up to 125°C with a 3000-hour load-life rating.

Unique Advantages

• High ripple-handling capability: Rated for 1.6 A at high frequency (300 kHz) and 160 mA at 120 Hz, enabling effective suppression of dynamic current fluctuations.
• Low ESR for improved efficiency: 30 mΩ ESR at 100 kHz reduces power loss and thermal rise in high-frequency applications.
• Extended high-temperature endurance: 3000 hours at 125°C provides predictable lifetime performance in elevated-temperature environments.
• Reflow-compatible SMD form factor: Embossed carrier taping and soldering profile compatibility support automated surface-mount assembly and lead‑free reflow processes.
• Compact radial can SMD package: φ8 × 8.7 mm footprint balances capacitance and board space for compact power modules.

Why Choose RKS1H470MCNAHHGS?

RKS1H470MCNAHHGS positions itself as a practical solution where low ESR, substantial ripple current capability, and sustained high-temperature endurance are required. Its combination of 47 µF at 50 V, measured ESR of 30 mΩ (100 kHz), and 3000-hour life at 125°C makes it suitable for engineers optimizing power rail stability and thermal reliability on surface-mounted assemblies.

This part is appropriate for designs that demand robust high-frequency filtering and energy buffering in compact SMD packages, backed by RoHS-compliant manufacturing and compatibility with standard lead‑free reflow profiles.

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