UPS1H3R3MDD

The UPS1H3R3MDD is a miniature, low‑impedance aluminum electrolytic capacitor from Nichicon’s UPS series, designed for switching power supplies and general‑purpose power decoupling. It is a polarized, radial‑lead radial can capacitor providing 3.3 µF capacitance at a 50 V rating, optimized for compact power designs that require reliable smoothing and ripple handling across a wide temperature range.

Built to operate from –55°C to +105°C and compliant with RoHS (2011/65/EU, (EU)2015/863), this part combines a small footprint with endurance characteristics suited to sustained operation at elevated temperatures.

Key Features

• Capacitance and Voltage — 3.3 µF capacitance rated at 50 V for power decoupling and smoothing in switching circuits.
• Low Impedance — Designed for low impedance performance; specified tangent of loss angle (tan δ) at 50 V is 0.10 (max), supporting efficient AC ripple attenuation.
• Wide Temperature Range — Operates from –55°C to +105°C, allowing use across a broad set of environmental conditions.
• Radial Lead, Compact Package — Radial lead mounting with 2 mm lead spacing in a radial can package; physical footprint approximately L: 1.1 × D: 0.5 cm for space‑constrained layouts.
• Endurance at Elevated Temperature — Rated lifetime of 2000 hours at 105°C, supporting long‑term operation under high temperature stress.
• Ripple Current Performance — Specified ripple current values include 11.05 mA at 120 Hz and 65 mA at 10 kHz, enabling effective filtering across common switching frequencies.
• Leakage Current — Leakage current defined as not more than 0.03CV (µA) after 1 minute at 20°C, allowing predictable leakage behavior for design margin calculations.
• RoHS Compliant — Conforms to RoHS directive requirements (2011/65/EU, (EU)2015/863).

Typical Applications

• Switching Power Supplies — Smoothing and output decoupling in switching regulators where low impedance and compact size are required.
• General‑Purpose Power Decoupling — Local energy storage and ripple suppression on power rails in compact electronic assemblies.
• Space‑Constrained Power Designs — Ideal for designs that need a small radial can capacitor with reliable performance across a wide temperature range.

Unique Advantages

• Compact footprint — Small nominal dimensions (L: 1.1 × D: 0.5 cm) and radial lead form factor simplify placement in dense assemblies.
• Wide operating temperature — –55°C to +105°C range supports use in applications exposed to extreme ambient conditions.
• Engineered for ripple performance — Specified ripple current values at 120 Hz and 10 kHz help designers size capacitors for both low‑ and high‑frequency ripple handling.
• Predictable leakage behavior — Leakage current limit defined by 0.03CV (µA) after 1 minute at 20°C aids in power budgeting and startup behavior modeling.
• Long endurance at elevated temperature — 2000 hours at 105°C rating provides assurance for prolonged high‑temperature operation.
• RoHS compliance — Conforms to current RoHS directives for environmental and regulatory alignment.

Why Choose UPS1H3R3MDD?

UPS1H3R3MDD is positioned for designers who need a small, reliable aluminum electrolytic capacitor tailored to switching power supply and general‑purpose decoupling applications. With a 50 V rating, low tan δ at the rated voltage, defined ripple current capabilities, and a wide –55°C to +105°C operating range, it balances compactness with predictable electrical and thermal performance.

Manufactured by Nichicon and RoHS compliant, this part is suited for engineers and procurement teams looking for a proven radial‑lead solution that supports sustained operation at elevated temperatures while maintaining low impedance and controlled leakage characteristics.

Request a quote or submit a product inquiry for pricing and availability of UPS1H3R3MDD and to discuss quantities, lead times, or technical clarifications.