RHT1A221MDN1

The RHT1A221MDN1 is a radial-lead conductive polymer aluminum solid electrolytic capacitor in Nichicon’s RHT series. It delivers 220 µF capacitance at a 10 V rating with a compact φ8 × 11.5 mm can and 3.5 mm lead spacing, designed for general-purpose electronic applications.

Engineered for elevated-temperature operation and high ripple environments, this capacitor combines low ESR and high ripple-current capability with a specified 1000-hour endurance at 125°C, making it suitable for designs that require stable performance under thermal stress.

Key Features

• Capacitance & Voltage — 220 µF nominal capacitance with a rated voltage of 10 V and a tolerance of −20% to +20% (120 Hz, 20°C).
• Conductive Polymer Construction — Solid polymer electrolyte technology for low ESR and improved high-frequency behavior relative to conventional electrolytics.
• Low ESR — ESR of 17 mΩ measured at 20°C/100 kHz, supporting efficient power handling and reduced heat generation in AC/ripple conditions.
• High Ripple Current Capability — Rated ripple current: 126 mA at 120 Hz and 1.26 A at 300 kHz, offering robust performance across low- and high-frequency domains (frequency coefficients available in the series data).
• High-Temperature Endurance — Load life specified at 1000 hours at 125°C under rated voltage, with defined limits for capacitance change, tan δ and ESR after the endurance test.
• Compact Radial Package — φ8 × 11.5 mm case with 3.5 mm lead spacing (lead spacing tolerance ±0.5 mm) in a radial, can-style package for through-hole mounting.
• Leakage & Loss Angle — Leakage current specified at 440 µA (after 2 minutes at 20°C) and tan δ of 0.12 at 120 Hz, 20°C.
• Compliance & Packaging — RoHS-compliant; available in bulk (no terminal forming) or bag packing. Product is in mass production.

Typical Applications

• General-purpose electronic circuits — Provides bulk capacitance and stable performance where a 220 µF, 10 V solution with low ESR is required.
• Power supply filtering — Supports smoothing and ripple handling in power rails thanks to low ESR and rated ripple-current specifications across frequency.
• High-temperature environments — Suitable for designs operating up to 125°C, with a 1000-hour endurance rating at that temperature for long-term reliability.

Unique Advantages

• Reduced thermal stress through low ESR — 17 mΩ ESR at 100 kHz limits dissipation under AC conditions, helping maintain component and system reliability.
• Wide frequency ripple capability — Rated ripple currents specified for both low (120 Hz) and high (300 kHz) frequencies, enabling flexibility across switching and linear power circuits.
• Compact size for through-hole designs — φ8 × 11.5 mm case with standard 3.5 mm lead spacing fits space-constrained layouts while providing substantial capacitance.
• Designed for elevated-temperature duty — 1000-hour life at 125°C provides documented endurance for thermally demanding applications.
• Predictable leakage and loss characteristics — Specified leakage current and tan δ values support accurate power-budget and stability calculations.
• Production-ready supply — RoHS compliant and available in bulk/bag packaging with mass-production status for supply continuity.

Why Choose RHT1A221MDN1?

The RHT1A221MDN1 balances compact size with performance: 220 µF at 10 V in a φ8 × 11.5 mm radial-can package delivers meaningful bulk capacitance while keeping ESR low (17 mΩ at 100 kHz) and supporting significant ripple currents up to 1.26 A at high frequency. Its 1000-hour endurance at 125°C and RoHS compliance make it a practical choice for engineers specifying components for thermally stressed or high-ripple circuits.

This part is aimed at designers and procurement teams who need a reliable, production-ready conductive polymer aluminum capacitor for general-purpose power management and filtering in compact through-hole assemblies.

Request a quote or submit an inquiry to receive pricing and availability information for RHT1A221MDN1. Our team can provide volume pricing, lead-time details, and packaging options to support your design and production planning.