RR70J821MDN1

The RR70J821MDN1 is a conductive polymer aluminum solid electrolytic capacitor in a radial-lead can designed for general-purpose power filtering and decoupling. With a nominal capacitance of 820 µF at 6.3 V, it combines low ESR and high ripple-current capability in a compact φ10 × 12.5 mm package with 5 mm lead spacing.

Engineered for reliable operation from −55°C to 105°C and a rated load life of 2000 hours at 105°C, this RoHS-compliant part is supplied in bulk/bag packing and is in mass production for production-level sourcing.

Key Features

• Capacitance & Voltage — 820 µF nominal capacitance with ±20% tolerance at 20°C, 120 Hz; rated voltage 6.3 V.
• Conductive polymer construction — Solid polymer electrolyte for stable performance and improved high-frequency behavior; tangent of loss angle (tan δ) 0.12 measured at 20°C, 120 Hz.
• Ultra-low ESR — ESR specified at 7 mΩ (20°C/100 kHz), supporting efficient filtering and low dissipative loss.
• High ripple-current capability — Rated ripple current of 610 mA at 120 Hz (low frequency) and 6.1 A at 300 kHz (high frequency) to support switching power stages and high-frequency decoupling.
• Temperature and endurance — Operating range −55°C to 105°C with a rated lifetime of 2000 hours at 105°C under rated voltage.
• Compact radial package — φ10 × 12.5 mm can with 5 mm lead spacing (lead spacing tolerance 0.5 mm); radial-lead mounting for through-hole assembly.
• Leakage current — Specified leakage current of 516 µA (after applied voltage/test conditioning as defined in the datasheet).
• RoHS compliant — Conforms to RoHS directive requirements.

Typical Applications

• Switching power supplies — Output smoothing and decoupling where low ESR and high ripple capability reduce voltage ripple and heat dissipation.
• DC-DC converters — Bulk and high-frequency decoupling in compact, through-hole power modules thanks to the small φ10 × 12.5 mm can.
• Industrial and general-purpose electronics — General-purpose filtering in systems that require operation across −55°C to 105°C and sustained performance at elevated temperatures.

Unique Advantages

• Low dissipation losses: 7 mΩ ESR at 100 kHz reduces resistive heating and improves efficiency in high-frequency circuits.
• High-frequency performance: 6.1 A rated ripple at 300 kHz supports demanding switching applications and high-speed decoupling.
• Compact, board-friendly package: φ10 × 12.5 mm radial can with 5 mm lead spacing balances capacitance with a small footprint for through-hole assemblies.
• Wide thermal range and endurance: −55°C to 105°C operation and 2000-hour rated life at 105°C for dependable behavior in elevated-temperature environments.
• Predictable electrical characteristics: Specified tan δ (0.12 at 20°C/120 Hz) and defined leakage current (516 µA) enable confident design trade-offs in filtering networks.
• Production-ready supply: RoHS compliance and mass-production status simplify procurement for volume designs.

Why Choose RR70J821MDN1?

The RR70J821MDN1 delivers a practical balance of high capacitance, ultra-low ESR, and strong ripple-current capability in a compact radial-lead can, making it well suited for designers who need reliable power filtering in space-limited, through-hole designs. Its conductive polymer construction and specified endurance at 105°C provide predictable performance in elevated-temperature environments.

This part is intended for general-purpose power electronics and OEM applications where stable decoupling, thermal tolerance, and production-ready availability are important selection criteria.

Request a quote or contact sales to discuss availability, lead times, and pricing for RR70J821MDN1.