RKS1E181MCNAHGGS

The RKS1E181MCNAHGGS is a surface-mount conductive polymer aluminum electrolytic capacitor offering 180 µF capacitance at a 25 V rating. Engineered for high ripple tolerance and low equivalent series resistance, it targets compact power and high-frequency applications that require stable performance across a wide temperature range.

Key Features

• Capacitance and Tolerance — 180 µF nominal with tolerance of −20% to +20% (specified at 20°C, 120 Hz).
• Rated Voltage — 25 V DC rated voltage suitable for many board-level power rails.
• Low Loss (tan δ) — Tangent of loss angle (tan δ) of 0.12 measured at 20°C, 120 Hz, supporting reduced dissipation in AC conditions.
• Low ESR — ESR of 30 mΩ measured at 20°C, 100 kHz, for improved filtering and transient response at high frequency.
• High Ripple Current Capability — 160 mA at 120 Hz and 1.6 A at 300 kHz (high frequency) for power smoothing and decoupling under dynamic loads.
• Reliability / Life — Rated for 3,000 hours at 125°C, enabling use in elevated-temperature environments.
• Package and Mounting — Surface-mount radial can (φ8 × 7.7 mm) with recommended land size 8.3 × 8.3 mm; supplied in embossed carrier taping with moisture-proof packing.
• Operating Temperature Range — −55°C to +125°C for broad thermal tolerance.
• RoHS Compliant — Meets RoHS requirements for restricted substances.

Typical Applications

• DC‑DC converter output filtering — Low ESR (30 mΩ at 100 kHz) and 1.6 A high-frequency ripple capability make this capacitor suitable for smoothing output ripple on board-level converters.
• Power rail decoupling — 180 µF capacitance with a wide temperature rating supports stable decoupling in compact power distribution networks.
• High-frequency switching supplies — The combination of low tan δ and high HF ripple current supports energy handling in switching power stages and transient suppression.

Unique Advantages

• High ripple tolerance: Specified HF ripple current of 1.6 A at 300 kHz combined with 30 mΩ ESR reduces heating and voltage ripple under dynamic loads.
• Extended high‑temperature life: 3,000‑hour endurance at 125°C provides predictable long-term performance in elevated-temperature designs.
• Compact SMD can package: φ8 × 7.7 mm radial can footprint and embossed carrier taping simplify automated placement while conserving board area.
• Low dissipation: tan δ of 0.12 at 20°C/120 Hz limits AC losses for improved efficiency in AC/ ripple environments.
• Wide operating range: −55°C to +125°C supports use across harsh thermal conditions without derating the capacitor’s specified characteristics.
• Regulatory compliance: RoHS conformity supports environmental and regulatory requirements for modern electronics production.

Why Choose RKS1E181MCNAHGGS?

The RKS1E181MCNAHGGS combines a high nominal capacitance with low ESR and substantial ripple-current capability in a small surface-mount can, making it well suited to compact power systems and high‑frequency regulation circuits that must operate reliably at elevated temperatures. Its 3,000‑hour life at 125°C and wide −55°C to +125°C operating range deliver predictable long-term behavior for thermal-stressed designs.

This part is targeted at engineers specifying board-level energy storage and filtering where low loss, high ripple handling, and compact SMD packaging reduce design risk and simplify assembly. RoHS compliance and tape-and-reel packaging support modern manufacturing and regulatory needs.

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