UAS2D271MHD

The UAS2D271MHD is a radial‑lead aluminum electrolytic capacitor from Nichicon’s UAS series. It delivers 270 µF capacitance at a 200 V rated voltage in a compact φ18 × 35.5 mm can with 7.5 mm lead spacing.

Designed for general‑purpose power applications, this capacitor combines wide operating temperature range (‑40 °C to 105 °C), high ripple current capability, and a safety pressure‑relief feature to support reliable performance in demanding power filtering and energy‑storage roles.

Key Features

• Capacitance & Tolerance — 270 µF nominal with tolerance of ‑20% to +20%, suitable for bulk energy storage and smoothing tasks.
• Rated Voltage — 200 V DC rating for mid‑voltage power rails and supply filtering.
• High ripple current capability — Rated ripple currents of 890 mA at 120 Hz and 1.424 A at 10 kHz, supporting high AC stress environments.
• Loss characteristic (tan δ) — tan δ of 0.15 (measured at 20 °C, 120 Hz), enabling predictable ESR/DF behavior for design calculations.
• Leakage current — Specified leakage current of 2260 µA (measured at 20 °C after 1 minute), with datasheet formula available for design verification.
• Wide operating temperature & endurance — Rated for ‑40 °C to 105 °C with endurance of 2000 hours at 105 °C under DC bias plus rated ripple current.
• Compact radial can — Mechanical size φ18 × 35.5 mm with 7.5 mm lead spacing (±0.5 mm), available in bulk or bag packing for through‑hole assembly.
• Safety feature — Improved safety design with a pressure relief vent that operates without causing flames, ignitions, or dispersion of pieces of the capacitor or case under specified conditions.
• RoHS compliant — Conforms to RoHS directive requirements.

Typical Applications

• Power supply filtering — Bulk smoothing on mid‑voltage DC rails where 200 V rating and 270 µF capacitance provide energy reserve and ripple attenuation.
• DC link and energy storage — Local energy storage in power conversion circuits leveraging high ripple current capability and endurance at elevated temperature.
• Industrial and general‑purpose electronics — Support for control systems and power modules that require wide temperature operation (‑40 °C to 105 °C) and reliable long‑term performance.

Unique Advantages

• High ripple handling: Rated ripple currents (890 mA at 120 Hz, 1.424 A at 10 kHz) enable use in AC‑stressed power environments without immediate performance degradation.
• Wide temperature endurance: Operates from ‑40 °C to 105 °C with a 2000‑hour endurance at 105 °C, helping designs tolerate elevated operating temperatures.
• Predictable electrical behavior: Specified tan δ (0.15) and defined leakage current allow accurate ESR/DF and leakage budgeting in circuit simulations and BOMs.
• Safety‑oriented design: Pressure relief vent behavior minimizes hazardous outcomes under abnormal overvoltage conditions per the series specification.
• Compact radial form factor: φ18 × 35.5 mm can with 7.5 mm lead spacing provides a space‑efficient through‑hole solution for bulk capacitance.
• Production ready: Listed as mass production and supplied in bulk or bag packing for standard assembly flows.

Why Choose UAS2D271MHD?

UAS2D271MHD positions itself as a robust, general‑purpose radial electrolytic capacitor for mid‑voltage power designs that require substantial capacitance (270 µF), reliable ripple performance, and extended temperature endurance. Its combination of a 200 V rating, defined ripple currents at multiple frequencies, and a safety pressure relief feature makes it a practical choice for designers focused on dependable power filtering and energy storage.

This capacitor is well suited to engineers and procurement teams specifying through‑hole components for industrial power supplies, converters, and general electronics where RoHS compliance, predictable electrical characteristics, and production availability matter.

Request a quote or submit a pricing inquiry to obtain availability and packing options for UAS2D271MHD.