RNS0G122MDN1

The RNS0G122MDN1 is a conductive polymer aluminum solid electrolytic capacitor in a radial-lead can, offering 1.2 mF capacitance at a 4 V rating. It is designed for general-purpose use where a polarized low-voltage, high-capacitance component with low equivalent series resistance is required.

Built as part of Nichicon’s RNS series, this part delivers low ESR (10 mΩ at 20°C/100 kHz), high ripple-current capability (5.5 A at 300 kHz), and extended endurance (2000 hours at 105°C), making it suitable for compact power and decoupling applications in electronics designs.

Key Features

• Core Technology Conductive polymer aluminum solid electrolytic construction provides stable capacitance in a polarized radial-lead package.
• Capacitance & Voltage 1.2 mF (1200 µF) nominal capacitance with ±20% tolerance at 120 Hz, 20°C, rated for 4 V operation.
• Low ESR & High Ripple ESR specified at 10 mΩ (20°C/100 kHz) and rated ripple current of 5.5 A at 300 kHz (550 mA at 120 Hz), supporting high-frequency decoupling and power delivery roles.
• Thermal & Reliability Operating temperature range from −55°C to 105°C and endurance specified as 2000 hours at 105°C under rated voltage.
• Package & Footprint Compact radial can, dimension φ10 × 12.5 mm with 5 mm lead spacing (±0.5 mm), provided in bulk/bag packing without terminal forming.
• Leakage & Loss Characteristics Leakage current specified at 720 µA (after 2 minutes at 20°C) and tan δ (DF) of 0.15 measured at 20°C, 120 Hz, indicating controlled dissipation for power-sensitive circuits.

Typical Applications

• General Purpose Electronics Suited for general-purpose designs that require a polarized, low-voltage, high-capacitance component with low ESR.
• Power Supply Filtering 1.2 mF at 4 V combined with 10 mΩ ESR supports smoothing and filtering on low-voltage rails.
• High-Frequency Decoupling High-frequency ripple-current capability (5.5 A at 300 kHz) addresses decoupling needs at switching regulator frequencies.
• Energy Buffering Compact radial form factor and substantial capacitance provide local energy storage for transient events on low-voltage circuits.

Unique Advantages

• Low ESR for efficient power delivery: 10 mΩ ESR at 20°C/100 kHz reduces voltage drop and heat under AC load conditions.
• High ripple-current capability: Rated for 5.5 A at 300 kHz (and 550 mA at 120 Hz), enabling performance in high-frequency switching environments.
• Wide operating temperature: −55°C to 105°C range supports deployment across varied thermal conditions.
• Proven endurance: 2000 hours at 105°C under rated voltage demonstrates long-term stability for sustained thermal stress.
• Compact radial package: φ10 × 12.5 mm can with 5 mm lead spacing fits space-constrained board layouts while providing substantial capacitance.

Why Choose RNS0G122MDN1?

RNS0G122MDN1 positions itself as a reliable choice when a polarized, low-voltage capacitor with high capacitance, low ESR, and strong ripple-current capability is required. Its conductive polymer aluminum construction and RNS-series specification provide measurable performance for designers focused on power integrity and thermal endurance.

This part is suited to designs that demand stable decoupling and energy buffering on low-voltage rails, offering long-term value through 2000-hour endurance at 105°C and well-defined electrical characteristics from Nichicon's RNS family.

Request a quote or contact sales to obtain pricing, lead-time, and ordering information for RNS0G122MDN1.