UKL1H3R3KDD

The UKL1H3R3KDD is a radial lead aluminum electrolytic capacitor offering 3.3 µF capacitance at a 50 V rating, designed for compact, through‑hole implementations. It combines low leakage performance with defined ripple handling at both low and high frequencies, making it suitable for compact audio electronics and related power‑filtering tasks.

Key electrical and mechanical attributes include a leakage current of 0.33 µA, low‑frequency ripple current of 40 mA (120 Hz) and high‑frequency ripple current of 80 mA (10 kHz), an operating temperature range of –40°C to 85°C, and a compact φ5 × 11 mm radial can with 2 mm lead spacing.

Key Features

• Core Electrical — 3.3 µF capacitance with ±10% tolerance, polarized design, and 50 V rated voltage for small power and signal circuits.
• Low Leakage Current — Specified leakage current of 0.33 µA to minimize bias drift and preserve DC operating points in sensitive circuits.
• Ripple Current Capability — Handles 40 mA at 120 Hz and 80 mA at 10 kHz, supporting both low‑frequency power smoothing and higher‑frequency decoupling tasks.
• Thermal and Endurance — Operates from –40°C to 85°C with a rated endurance of 2000 hours at 85°C.
• Compact Radial Package — φ5 × 11 mm can with 2 mm lead spacing (±0.5 mm), radial lead mounting for through‑hole assembly and straightforward replacement in existing boards.
• Packaging Options — Available in bulk (no terminal forming) or bag packing to suit manual assembly and small production runs.
• RoHS Compliant — Manufactured in compliance with RoHS requirements.

Typical Applications

• Audio power supply smoothing — Low leakage and defined ripple ratings support stable supply filtering in audio amplifier and preamplifier circuits.
• Audio decoupling and biasing — Polarized configuration and low leakage make the part suitable for DC bias stabilization and decoupling in audio signal paths.
• Compact consumer audio electronics — Small φ5 × 11 mm package fits space‑constrained PCBs used in portable or compact audio devices.

Unique Advantages

• Measurable low leakage: 0.33 µA leakage current helps maintain stable DC conditions in precision audio stages and bias networks.
• Broad ripple handling: Distinct ripple ratings at 120 Hz and 10 kHz allow designers to size a single part for both mains‑frequency smoothing and higher‑frequency decoupling.
• Compact radial form factor: φ5 × 11 mm can and 2 mm lead spacing enable placement in tight layouts while retaining through‑hole robustness.
• Defined endurance at temperature: 2000 hours at 85°C gives a predictable life expectation for thermal stress planning.
• RoHS compliance: Meets RoHS environmental requirements for modern electronics production and supply chains.
• Flexible packing: Bulk or bag packing accommodates manual assembly and low‑volume manufacturing workflows.

Why Choose UKL1H3R3KDD?

UKL1H3R3KDD is positioned for designers who need a compact, low‑leakage electrolytic capacitor with clearly defined ripple performance for audio and similar low‑voltage applications. Its combination of 3.3 µF capacitance, 50 V rating, and measurable ripple/leakage characteristics provides predictable behavior for power‑filtering and decoupling tasks in space‑constrained boards.

This part is well suited to equipment engineers and procurement teams specifying components for consumer and professional audio electronics where compact size, controlled leakage, and predictable endurance at 85°C are key selection criteria.

Request a quote or contact sales to discuss availability, packaging options, and lead times for UKL1H3R3KDD.