RL80J821MCN1

The RL80J821MCN1 is a conductive polymer aluminum solid electrolytic capacitor in a low-profile radial-lead can (φ8×8 mm) designed for general-purpose power applications. It delivers high ripple-current capability and ultra-low ESR in a compact package, suited for designs that require effective decoupling and bulk energy storage within limited board height.

Key Features

• Capacitance and Voltage: 820 µF rated capacitance with a 6.3 V nominal rating and tolerance of −20% to +20% at 120 Hz, 20°C.
• Low ESR: ESR of 8 mΩ measured at 20°C/100 kHz, enabling reduced voltage ripple and improved power-stage stability.
• High ripple current capability: Low-frequency ripple current 570 mA (120 Hz) and high-frequency ripple current 5.7 A (300 kHz), allowing use on both bulk and switching-output nodes.
• Thermal and lifetime performance: Operational temperature range −55°C to +105°C with a rated load life of 2000 hours at 105°C.
• Loss characteristic: tanδ (DF) of 0.12 measured at 20°C/120 Hz for predictable dissipation behavior.
• Compact radial package: φ8×8 mm can with 3.5 mm lead spacing (±0.5 mm), radial lead mounting and packaging available in bulk or bag (no terminal forming).
• Leakage current: Specified leakage current of 1033 µA after standard conditioning and test.
• Compliance and production status: RoHS compliant and listed as mass production from Nichicon.

Typical Applications

• Switch-mode power supplies (SMPS): Output smoothing and decoupling where low ESR (8 mΩ) and high-frequency ripple handling (5.7 A at 300 kHz) reduce output ripple and improve transient response.
• DC-DC converters: Bulk capacitance and high ripple capability help stabilize converter outputs in space-constrained, low-profile designs.
• Embedded and industrial electronics: General-purpose power filtering in control modules and instrumentation requiring operation from −55°C to +105°C and proven endurance at elevated temperature.

Unique Advantages

• Low-profile packaging: φ8×8 mm can with 8 mm height enables installation in compact assemblies without sacrificing capacitance.
• High ripple tolerance across frequencies: Rated ripple currents specified at both low and high frequencies support use with switching regulators and high-frequency power stages.
• Ultra-low ESR: 8 mΩ at 100 kHz reduces I²R losses and voltage drop under load, improving overall power efficiency.
• Wide operating temperature range: −55°C to +105°C supports deployment across demanding ambient conditions.
• Defined reliability: 2000 hour life at 105°C gives a measurable baseline for thermal endurance in designs.
• Production-ready supply: Mass production status and RoHS compliance simplify procurement and regulatory handling.

Why Choose RL80J821MCN1?

The RL80J821MCN1 combines high capacitance density with ultra-low ESR and substantial ripple-current capability in a compact radial-lead form factor, making it a practical choice for engineers needing reliable power filtering and decoupling in cramped PCB real estate. Its specified performance at 100 kHz and 300 kHz, broad temperature range, and defined life at 105°C provide measurable, verifiable parameters for power-system design.

Manufactured by Nichicon and available in mass production, this part fits general-purpose applications where low-profile, high-ripple, and low-loss characteristics deliver tangible benefits for power-supply stability and long-term robustness.

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