UKW1J682MRD

The UKW1J682MRD is a radial-lead aluminum electrolytic capacitor from Nichicon’s UKW series, specified at 6.8 mF (6800 µF) and 63 V. It is supplied in a φ16 × 25 mm can with 12.5 mm lead spacing and bag packing (bulk, no terminal forming).

Designed for audio and AV equipment, this polarized capacitor delivers high bulk capacitance, measurable ripple handling, and a documented endurance rating for sustained operation at elevated temperature. Note: this part is marked End Of Life.

Key Features

• Capacitance & Voltage — 6.8 mF (6800 µF) nominal capacitance at 63 V rated voltage with ±20% tolerance.
• Package & Mounting — Radial lead, aluminum can package (φ16 × 25 mm) with 12.5 mm lead spacing; supplied in bag packing (bulk, no terminal forming).
• Operating Temperature — Specified for operation from –40 °C to +85 °C.
• Endurance — Rated lifetime of 2000 hours at 85 °C with endurance criteria restored to 20 °C per the UKW series specification (capacitance change within ±20%, tan δ and leakage current limits defined by the series endurance test).
• Ripple Current & Frequency Response — Rated ripple current: 3.5 A at 120 Hz and 4.025 A at 10 kHz. Frequency coefficients for caps in the 1000–15000 µF range apply (50 Hz: 0.85, 120 Hz: 1.00, 300 Hz: 1.10, 1 kHz: 1.13, 10 kHz+: 1.15), which informs ripple rating adjustments by operating frequency.
• Electrical Losses & Leakage — Maximum tan δ for 63 V units is 0.10 (measured at 120 Hz, 20 °C). Leakage current guidelines: after 1 minute not more than 0.03 CV (µA) and after 2 minutes not more than 0.01 CV (µA) as specified for the series.
• Regulatory — RoHS compliant.

Typical Applications

• Audio / AV Equipment — Bulk energy storage and smoothing in AV power supplies and amplifier reservoirs where the UKW series is specified for audio use.
• Power Supply Smoothing — Filtering and decoupling for through-hole power supplies that require high capacitance at up to 63 V.
• Through-Hole Prototyping & Repairs — Radial-lead can package and standard lead spacing make the part suitable for repairs, retrofit, and through-hole board layouts in audio/AV electronics.

Unique Advantages

• High bulk capacitance: 6.8 mF provides substantial energy storage for smoothing and reservoir functions in audio-related power systems.
• 63 V rating for headroom: Allows higher-voltage circuit designs or additional margin compared to lower-voltage electrolytics.
• Documented endurance: Specified 2000 hours at 85 °C with defined post-test limits for capacitance, tan δ, and leakage current, giving predictable life behavior under elevated temperature stress.
• Measured ripple capability: Rated ripple currents at both 120 Hz and 10 kHz with frequency coefficients for the 1000–15000 µF range to scale ripple limits by operating frequency.
• Wide temperature span: –40 °C to +85 °C operating range supports deployment across typical audio and AV environments.
• RoHS compliant: Meets environmental directive requirements for restricted substances.

Why Choose UKW1J682MRD?

The UKW1J682MRD combines high capacitance and a 63 V rating in a through-hole radial can package, tailored for audio and AV applications where reservoir capacitance and reliable ripple handling are required. Its endurance specification at 85 °C and quantified ripple performance give engineers measurable data for design validation in power supply and amplifier stages.

This part suits designers and procurement teams specifying replacement or original components for audio-centric boards that need proven electrolytic performance, clear electrical parameters, and RoHS compliance. As an offering from Nichicon’s UKW series, it aligns with series-level specifications for audio equipment applications.

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