UKL1A681MPD

The UKL1A681MPD is an aluminum electrolytic capacitor in a radial-lead can designed for low leakage performance. It delivers 680 µF capacitance at a 10 V rating in a compact φ10 × 20 mm package with 5 mm lead spacing.

Targeted for audio applications, this device combines low leakage current and strong ripple-current capability to support power filtering and decoupling needs in space-constrained audio circuitry. The part is RoHS compliant and rated for continuous operation from −40°C to 85°C.

Key Features

• Capacitance & Voltage — 680 µF nominal capacitance with ±20% tolerance at a 10 V rated voltage.
• Low Leakage — Specified leakage current of 13.6 µA for reduced standby drain and improved bias stability in sensitive circuits.
• Ripple Current Handling — Low-frequency ripple current 600 mA (120 Hz) and high-frequency ripple current 900 mA (10 kHz) to support power smoothing and decoupling across audio frequency ranges.
• Endurance & Temperature Range — Rated for 2000 hours at 85°C with an operating temperature range of −40°C to 85°C.
• Package & Mounting — Radial-lead can, case size φ10 × 20 mm, lead spacing 5 mm (±0.5 mm), available in bulk (no terminal forming) or bag packing for through-hole assembly.
• Compliance — RoHS compliant.

Typical Applications

• Consumer and Pro Audio Systems — Suited for power filtering and smoothing in audio amplifiers and preamplifiers where low leakage preserves signal fidelity.
• Audio Power Supply Decoupling — Supports decoupling duties with high ripple-current capability across low and high frequency ranges common in audio power rails.
• Compact Electronics — Small φ10 × 20 mm radial package for space-constrained boards requiring electrolytic bulk capacitance.

Unique Advantages

• Low Standby Losses: 13.6 µA leakage current reduces quiescent current draw and helps maintain bias stability in audio circuits.
• Broad Ripple Capability: 600 mA at 120 Hz and 900 mA at 10 kHz provide reliable performance for both low-frequency smoothing and higher-frequency decoupling needs.
• Compact Through-Hole Form Factor: φ10 × 20 mm radial can with 5 mm lead spacing fits tight layouts while offering traditional through-hole robustness.
• Designed for Extended Operation: 2000 hours at 85°C endurance rating supports longer life in sustained thermal environments.
• Regulatory Compliance: RoHS compliance supports environmentally conscious product builds.

Why Choose UKL1A681MPD?

UKL1A681MPD is positioned for audio-focused designs that require a combination of substantial capacitance, low leakage, and solid ripple-current handling in a compact radial package. Its endurance rating and operating temperature range make it suitable for equipment expected to run continuously under typical commercial conditions.

Because this part provides measurable benefits for power smoothing and decoupling—while fitting in space-limited layouts—it is a practical option for engineers specifying through-hole electrolytic capacitance in audio and compact electronic designs. Note: this product is End Of Life and scheduled for discontinuation; it is not recommended for new designs.

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