UKL1A681KPD

The UKL1A681KPD from Nichicon is a radial-lead aluminum electrolytic capacitor designed for low leakage current applications. It delivers 680 µF of capacitance at a 10 V rating in a compact φ10×20 mm can with 5 mm lead spacing.

Key strengths include low leakage (13.6 µA), rated ripple handling up to 600 mA at 120 Hz and 900 mA at 10 kHz, and a specified endurance of 2000 hours at 85°C. The unit is RoHS compliant and supplied in bulk or bag packing. Status: End Of Life; this product is not recommended for new designs.

Key Features

• Capacitance & Voltage — 680 µF nominal capacitance with ±10% tolerance at a 10 V rated voltage, suitable where significant bulk capacitance at low voltage is required.
• Low Leakage Performance — Specified leakage current of 13.6 µA, supporting circuits sensitive to DC leakage.
• Ripple Current Handling — Rated low-frequency ripple current of 600 mA (120 Hz) and high-frequency ripple current of 900 mA (10 kHz), enabling effective smoothing under varying ripple conditions.
• Endurance & Temperature Range — Lifetime of 2000 hours at 85°C and an operating temperature range of −40°C to 85°C for sustained operation in elevated-temperature environments.
• Package & Mounting — Radial lead, polarized can with dimensions φ10×20 mm, lead spacing 5 mm (±0.5 mm), supplied in bulk or bag packing for through-hole assembly.
• Environmental Compliance — RoHS compliant construction.

Typical Applications

• Audio power supply filtering — Provides bulk capacitance and ripple handling for audio amplifier and preamplifier rails where low leakage is beneficial.
• Compact through-hole electronics — φ10×20 mm radial package fits dense through-hole layouts requiring high capacitance at low voltage.
• Legacy or repair designs — Direct replacement for applications that specify the UKL series footprint and electrical characteristics.

Unique Advantages

• Low leakage for DC-sensitive circuits: 13.6 µA leakage current reduces DC loss where retained charge or low bias leakage matters.
• Wide ripple-band capability: Specified ripple performance at both 120 Hz and 10 kHz (600 mA and 900 mA respectively) supports filtering across low and high ripple frequencies.
• Compact radial can: φ10×20 mm size offers substantial capacitance in a small through-hole package for space-constrained boards.
• Durability at elevated temperature: 2000-hour endurance at 85°C demonstrates resilience for sustained thermal conditions.
• RoHS compliance: Meets environmental requirements for lead-free assemblies.
• Standardized mounting: 5 mm lead spacing with ±0.5 mm tolerance simplifies PCB patterning and assembly.

Why Choose UKL1A681KPD?

The UKL1A681KPD offers a focused combination of high bulk capacitance, low leakage, and measurable ripple current capability in a compact radial aluminum electrolytic package from Nichicon. It is well suited to audio-related power decoupling and other through-hole designs that require 680 µF at 10 V with robust ripple handling and defined thermal endurance.

Because this part is End Of Life and not recommended for new designs, it is particularly appropriate for maintenance, repairs, or where matching existing UKL-series specifications is required. For designers and procurement teams needing this exact specification, Nichicon heritage and clear electrical characteristics support dependable selection and substitution decisions.

Request a quote or contact sales to discuss availability, lead time, and ordering for UKL1A681KPD.