UHD1H271MPD

The UHD1H271MPD is a Nichicon UHD series miniature aluminum electrolytic capacitor in a radial lead can, rated 270 µF at 50 V. It is a high-reliability type designed for general-purpose electronic equipment that requires low impedance and elevated ripple-current capability.

Key value propositions include compact radial packaging (φ10 × 20 mm), high ripple-current performance across low and high frequencies, and an extended operating temperature range of −40°C to 105°C with a 4000 hour endurance at 105°C.

Key Features

• Capacitance & Rated Voltage — 270 µF nominal capacitance rated for 50 V DC with capacitance tolerance −20% to +20%.
• Low Loss — tanδ (loss tangent) specified at 0.10 (measured at 20°C, 120 Hz) supporting low dissipation in AC conditions.
• High Ripple Current Capability — Low-frequency ripple current 1.106 A (120 Hz) and high-frequency ripple current 1.58 A (100 kHz), enabling effective handling of both line-frequency and switching ripple.
• Leakage Current — Specified leakage current of 135 µA (measured after 2 minutes at 20°C), providing predictable DC leakage behavior.
• Temperature & Endurance — Operating temperature range −40°C to 105°C with an endurance rating of 4000 hours at 105°C under rated voltage plus ripple current.
• Compact Radial Package — φ10 × 20 mm can with 5 mm lead spacing (±0.5 mm), radial lead mounting for through-hole assemblies; available in bulk or bag packing.
• RoHS Compliant — Conforms to RoHS directive as indicated for the UHD series.

Typical Applications

• Power supply filtering — Bulk smoothing and ripple reduction on DC power rails where 50 V rating and high ripple capability are required.
• Switching regulator decoupling — Local energy storage and high-frequency ripple handling for DC/DC converters and switching power stages.
• General-purpose electronic equipment — Use in assemblies demanding a compact radial electrolytic with predictable leakage and long endurance at elevated temperature.

Unique Advantages

• High ripple-current handling: Specified 1.106 A at 120 Hz and 1.58 A at 100 kHz, enabling reliable performance across low- and high-frequency ripple conditions.
• Low impedance at high frequency: UHD series design notes reduced impedance in the high-frequency range, supporting improved transient and filtering behavior.
• Compact radial form factor: φ10 × 20 mm can with 5 mm lead spacing offers space-efficient through-hole mounting for power circuits.
• Extended high-temperature endurance: 4000 hours rated life at 105°C provides predictable long-term behavior in elevated-temperature environments.
• Measured electrical characteristics: Low loss (tanδ 0.10 at 20°C/120 Hz) and specified leakage current (135 µA) give clear, verifiable parameters for design verification.
• RoHS compliance: Meets environmental requirements for lead-free assembly workflows.

Why Choose UHD1H271MPD?

UHD1H271MPD combines the UHD series’ low-impedance, high-ripple architecture with a compact radial can and clear specification set—270 µF at 50 V, defined loss tangent, and quantified ripple and leakage currents—making it a straightforward choice for engineers specifying through-hole electrolytic capacitors for power filtering and decoupling. The −40°C to 105°C operating range and 4000 hour endurance at 105°C let designers plan for sustained operation in demanding thermal conditions.

This part is suited to teams and procurement focused on robust, verifiable capacitors for general-purpose power circuitry where predictable ripple handling, compact size, and clear endurance ratings are required.

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