UKL1H4R7KDD

The UKL1H4R7KDD is a miniature radial‑lead aluminum electrolytic capacitor from Nichicon’s UKL series. It delivers a compact 4.7 µF capacitance at a 50 V rating with low leakage and low loss characteristics tailored for precision analog and audio circuitry.

Designed for through‑hole mounting in compact assemblies, this component targets audio applications and other designs where small size, low leakage (0.47 µA) and stable performance across –40 °C to 85 °C are required.

Key Features

• Electrical Performance — 4.7 µF, 50 V: Rated capacitance 4.7 µF with ±10% tolerance at 20 °C/120 Hz and a 50 V DC voltage rating for moderate‑voltage circuits.
• Low Leakage Current: Leakage current specified at 0.47 µA, supporting circuits that require minimal DC leakage.
• Low Dielectric Loss: Tangent of loss angle (tan δ) of 0.08 measured at 20 °C and 120 Hz, indicating low loss behavior in audio frequency ranges.
• Ripple Current Capability: Low‑frequency ripple current 45 mA at 120 Hz and high‑frequency ripple current 90 mA at 10 kHz for power‑filtering duties in compact designs.
• Reliability & Endurance: Rated endurance of 2000 hours at 85 °C with rated voltage applied, suitable for sustained operation within the specified temperature range.
• Compact Radial Package: Size φ5 × 11 mm (L: 1.1 × D: 0.5 cm) with 2.0 mm lead spacing (±0.5 mm tolerance) in a radial can for easy through‑hole assembly.
• Mounting & Polarity: Polarized, radial‑lead configuration for conventional PCB mounting and wiring layouts.
• Environmental Compliance: RoHS compliant per product documentation.
• Packaging Options: Available in bulk (no terminal forming) and bag packing to suit assembly workflows.

Typical Applications

• Audio Circuits: Suited for signal and power stages in audio equipment where low leakage and low loss preserve signal integrity.
• Signal Coupling & Decoupling: Compact radial package provides local decoupling and coupling in analog front ends and audio submodules.
• Power Filtering in Audio Modules: Rated ripple current and 50 V withstand make it useful for smoothing and filtering tasks in small audio power supplies.

Unique Advantages

• Low leakage for DC‑sensitive circuits: 0.47 µA leakage current helps maintain DC bias and reduces drift in precision audio and analog stages.
• Low dielectric loss at audio frequencies: tan δ = 0.08 at 120 Hz minimizes energy dissipation in signal paths, supporting clearer audio performance.
• Small radial footprint: φ5 × 11 mm can and 2 mm lead spacing enable compact PCB layouts and straightforward through‑hole assembly.
• Balanced ripple handling: Defined low‑ and high‑frequency ripple ratings (45 mA @120 Hz, 90 mA @10 kHz) provide predictable behavior for filtering across audio and higher frequencies.
• Proven endurance at elevated temperature: 2000‑hour rating at 85 °C provides assurance for sustained operation within the specified temperature window.
• RoHS compliance: Conforms to environmental directive requirements stated in the product documentation.

Why Choose UKL1H4R7KDD?

The UKL1H4R7KDD delivers a compact, low‑leakage electrolytic solution for designers working on audio and analog systems that require small size, predictable ripple handling and low loss at audio frequencies. Its 50 V rating, ±10% capacitance tolerance, and 2000‑hour endurance at 85 °C make it a practical choice for through‑hole applications where space is limited but performance and reliability matter.

This component is well suited to engineers specifying components for audio signal paths, decoupling networks, and local power filtering in compact assemblies where RoHS compliance and easy radial mounting are required.

Request a quote or submit an inquiry for pricing and availability for UKL1H4R7KDD to review lead times and ordering options.