RL81C101MDN1

The RL81C101MDN1 is a conductive polymer aluminum solid electrolytic capacitor engineered for applications demanding ultra-low ESR and high ripple current in a compact radial-lead package. With a low-profile φ8 can and a rated capacitance of 100 µF at 16 V, it is designed for general-purpose electronic and power applications that require robust thermal endurance and high-frequency performance.

Key value propositions include extremely low equivalent series resistance (12 mΩ at 100 kHz), strong ripple-handling capability (up to 5 A at 300 kHz), and extended load-life options at elevated temperature (2000/5000 hours at 105°C), all in a space-efficient 8 × 8 mm package.

Key Features

• Ultra-low ESR — ESR of 12 mΩ measured at 100 kHz provides reduced losses and improved high-frequency performance.
• High ripple-current capability — Rated for 500 mA at 120 Hz and 5 A at 300 kHz, supporting demanding AC ripple and switching environments.
• Conductive polymer chemistry — Solid electrolyte construction for stable electrical characteristics and enhanced reliability over liquid electrolytes.
• Low-profile φ8 package — Compact dimensions (φ8 × 8 mm, lead spacing 3.5 mm) make it suitable for space-constrained PCBs using radial-lead mounting.
• Wide operating temperature — Specified from −55 °C to +105 °C to support a broad range of environmental conditions.
• Endurance / Load life — Load life specified at 2000/5000 hours at 105 °C for predictable lifetime behavior in high-temperature applications.
• Lead-free solder compatibility — Radial lead type and lead-free flow soldering condition correspondence for modern assembly processes.
• Polarized, general-purpose — 100 µF ±20% capacitance with polarized terminals for conventional DC smoothing and energy storage functions.
• RoHS compliant — Conforms to RoHS directives for environmental compliance.

Typical Applications

• Power supply filtering and decoupling — Low ESR and high ripple-current capability make the RL81C101MDN1 effective for smoothing and decoupling in switching power supplies and DC–DC converters.
• Compact embedded systems — The φ8 low-profile can and radial-lead package suit space-limited boards and tightly packed modules.
• High-frequency power stages — Measured performance at 100 kHz and ripple ratings up to 300 kHz support high-frequency switching converter stages.
• Industrial electronics — Wide operating temperature range (−55 °C to +105 °C) and extended load-life options support sustained operation in industrial environments.

Unique Advantages

• Improved thermal endurance: Endurance ratings of 2000/5000 hours at 105 °C provide predictable life performance in elevated-temperature designs.
• Reduced power loss: 12 mΩ ESR at 100 kHz lowers dissipation, improving efficiency in power conversion and reducing heat generation on the PCB.
• High ripple handling: Up to 5 A ripple at 300 kHz allows the capacitor to handle rigorous AC stress typical of modern switching regulators.
• Space-efficient design: φ8 × 8 mm dimensions and 3.5 mm lead spacing enable compact placement without sacrificing electrical performance.
• Assembly-ready: Radial lead construction compatible with lead-free flow soldering conditions simplifies integration into standard assembly lines.
• Regulatory compliance: RoHS conformity supports environmentally conscious product designs and procurement requirements.

Why Choose RL81C101MDN1?

The RL81C101MDN1 combines conductive polymer solid-electrolyte construction with ultra-low ESR and high ripple-current capability in a compact φ8 radial package. It is positioned for designs where high-frequency performance, thermal endurance, and a small footprint are required—such as power supplies, embedded systems, and industrial electronics.

For engineers and procurement teams, this part offers a balance of electrical performance and assembly compatibility, backed by clear specifications for ESR, ripple current, operating temperature, and load life to support predictable design choices and long-term robustness.

Request a quote or submit an inquiry for pricing and availability of RL81C101MDN1 to evaluate it for your next design or production run.