RL81C181MDN1

The RL81C181MDN1 is a conductive polymer aluminum solid electrolytic capacitor in a low‑profile radial lead package (φ8×8 mm). It delivers 180 µF capacitance at 16 V with low equivalent series resistance and high ripple current capability, making it suited for demanding general‑purpose power applications that require compact, robust decoupling and filtering.

Designed for through‑hole assembly, this RoHS‑compliant capacitor offers a broad operating temperature range of −55 °C to +105 °C and a rated life of 2000 hours at 105 °C, providing predictable performance in thermal and power‑dense environments.

Key Features

• Conductive polymer construction — Solid electrolyte technology for stable electrical characteristics and improved high‑frequency performance.
• Capacitance and tolerance — 180 µF with ±20% tolerance (measured at 120 Hz, 20 °C), suitable for bulk smoothing and energy storage.
• Low ESR — 12 mΩ ESR measured at 20 °C / 100 kHz, reducing losses and voltage drop under high‑frequency load.
• High ripple current capability — Rated ripple current of 500 mA at 120 Hz and 5 A at 300 kHz, enabling effective handling of both low‑ and high‑frequency ripple components.
• Low profile radial package — Compact φ8 × 8 mm can with 3.5 mm lead spacing for space‑constrained board layouts and through‑hole mounting.
• Wide temperature and endurance — Operates from −55 °C to +105 °C with a rated life of 2000 hours at 105 °C.
• Leakage and dissipation — Leakage current specified at 576 µA (after 2 minutes at 20 °C) and tan δ of 0.12 (20 °C, 120 Hz).
• Packaging and production status — Available in bulk (no terminal forming) or bag packing; product is in mass production and RoHS compliant.

Typical Applications

• Power-supply decoupling — Bulk and local decoupling where low ESR and high ripple current improve transient response and reduce voltage ripple.
• DC‑DC converters / point‑of‑load — Supports high‑frequency switching environments with 5 A ripple handling at 300 kHz and low ESR.
• Power stages and regulator output filtering — Compact low‑profile footprint for crowded boards while maintaining robust ripple and thermal performance.
• General‑purpose electronic assemblies — Through‑hole radial lead format for easy prototyping, repairability, and legacy PCB designs.

Unique Advantages

• Low thermal and electrical loss: 12 mΩ ESR at 100 kHz minimizes dissipation in high‑frequency applications.
• High-frequency capability: 5 A ripple current rating at 300 kHz supports modern switching regulators and fast transient loads.
• Compact, low-profile package: φ8×8 mm can provides significant board space savings while retaining through‑hole robustness.
• Wide operating range and proven endurance: −55 °C to +105 °C with 2000 h endurance at 105 °C for stable long‑term operation.
• Practical mounting and supply options: Radial lead format with 3.5 mm lead spacing and bulk or bag packing for flexible assembly workflows.
• Regulatory compliance: RoHS‑compliant construction for use in regulated product lines.

Why Choose RL81C181MDN1?

RL81C181MDN1 combines conductive polymer solid electrolyte chemistry with a low ESR footprint and high ripple current capability, delivering reliable decoupling and filtering in compact through‑hole form. Its specified electrical parameters—180 µF at 16 V, 12 mΩ ESR (20 °C/100 kHz), and 5 A ripple at 300 kHz—make it a practical choice where high‑frequency performance and thermal endurance are required.

This part suits engineers and procurement teams building power supplies, DC‑DC converter outputs, and general‑purpose electronic systems that need a durable, space‑efficient capacitor with well‑defined performance and RoHS compliance.

Request a quote or submit an inquiry to our sales team to discuss pricing, lead times, and volume availability for RL81C181MDN1.