RHT1C331MDN1

The RHT1C331MDN1 from Nichicon is a conductive polymer aluminum solid electrolytic capacitor designed for high-frequency, high-temperature environments. As a radial-lead, polarized can-type capacitor in the RHT series, it delivers low equivalent series resistance and high ripple-current capability for demanding power applications.

Targeted at power regulation, decoupling and high-frequency circuits, the RHT1C331MDN1 combines 330 µF capacitance at 16 V with a wide operating temperature range of −55 °C to 125 °C and a rated endurance of 1000 hours at 125 °C.

Key Features

• Conductive polymer aluminum solid electrolyte Provides stable capacitance and improved high-frequency performance compared to traditional wet electrolytic designs.
• Low ESR ESR specified at 16 mΩ (measured at 100 kHz, 20 °C) for reduced loss and improved efficiency in power paths.
• High ripple-current capability Rated ripple current of 152 mA at 120 Hz and 1.52 A at 300 kHz, supporting high-frequency switching and filtering workloads.
• High-temperature endurance Designed for continuous operation from −55 °C to 125 °C with a load life of 1000 hours at 125 °C.
• Radial lead, can package Through-hole radial-lead mounting with 5 mm lead spacing for straightforward PCB assembly and replacement.
• Capacitance and tolerance 330 µF nominal capacitance with ±20% tolerance at 120 Hz, 20 °C, suitable for bulk decoupling and energy storage.
• RoHS compliant Conforms to the RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• DC–DC converters Bulk and output filtering where low ESR and high ripple-current handling improve regulator stability and thermal performance.
• Power supply decoupling Local energy storage and high-frequency noise suppression for digital power rails and switching supplies.
• Industrial electronics High-temperature operation and robust endurance make it suitable for industrial controllers and power modules operating near 125 °C.
• Telecommunications and networking equipment Supports high-frequency power stages and filtering in systems that demand reliable ripple-current performance.

Unique Advantages

• Low-loss operation: Low ESR (16 mΩ at 100 kHz) reduces heat generation and improves efficiency in high-frequency circuits.
• High ripple tolerance: Rated ripple currents up to 1.52 A at 300 kHz enable reliable operation in switching environments and high-frequency power stages.
• High-temperature reliability: 1000-hour load life at 125 °C supports applications that run hot or require extended thermal endurance.
• Through-hole form factor: Radial-lead, can-style packaging with 5 mm lead spacing simplifies prototyping, assembly, and field replacement.
• Regulatory readiness: RoHS compliance supports environmental requirements for electronics manufacturing.

Why Choose RHT1C331MDN1?

The RHT1C331MDN1 offers a combination of conductive-polymer performance, low ESR, and robust ripple-current handling that suits high-frequency power and filtering duties in elevated-temperature environments. Its specification set—330 µF at 16 V, low ESR at 100 kHz, wide operating temperature range, and 1000-hour endurance at 125 °C—positions it for designs where thermal margin, efficiency and long-term reliability matter.

Produced by Nichicon as part of the RHT series, this radial-lead capacitor is a practical choice for engineers specifying through-hole components for industrial, telecom and embedded power electronics that require consistent performance under high ripple and high temperature stress.

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