UKL1J681MHD

The UKL1J681MHD is a low-leakage aluminum electrolytic capacitor in a radial lead can, offering 680 µF nominal capacitance with a 63 V rating. It is supplied in a φ16 × 30.5 mm can with 7.5 mm lead spacing and is designed for audio and related electronic applications that require stable capacitance, low leakage and defined ripple performance.

Key electrical characteristics include low-frequency ripple current of 1.05 A (120 Hz), high-frequency ripple current of 1.575 A (10 kHz), leakage current of 85.68 µA, and a rated operating temperature range of −40 °C to 85 °C with 2000 hours endurance at 85 °C.

Key Features

• Capacitance & Tolerance — 680 µF nominal with ±20% tolerance, specified at 120 Hz, 20 °C.
• Voltage Rating — 63 V rated voltage suitable for higher-voltage audio and power applications.
• Low Leakage Current — Specified leakage current of 85.68 µA, minimizing bias loss and drift in DC-coupled circuits.
• Ripple Current Performance — 1.05 A at 120 Hz and 1.575 A at 10 kHz provide proven AC ripple handling across common audio frequencies.
• Temperature & Endurance — Operating range of −40 °C to 85 °C with endurance specified at 2000 hours at 85 °C for predictable lifetime behavior.
• Package & Mounting — Radial lead (can) package, size φ16 × 30.5 mm, lead spacing 7.5 mm (tolerance ±0.5 mm); available in bulk or bag packing.
• Regulatory — RoHS compliant for restricted substances control.

Typical Applications

• Audio power supplies — Bulk energy storage and smoothing on audio power rails where 680 µF and a 63 V rating are required, supported by the specified ripple current ratings.
• Audio amplifiers — Supply decoupling and reservoir capacitance in amplifier power stages benefiting from low leakage and defined endurance at elevated temperature.
• Consumer and pro-audio equipment — Use in systems that require through-hole radial components and RoHS compliance for integration into assembled audio products.

Unique Advantages

• Low-bleed bias retention — The low specified leakage current helps preserve bias voltages and reduces discharge between power cycles.
• Robust ripple handling — Dual ripple current ratings (120 Hz and 10 kHz) support both low-frequency smoothing and higher-frequency ripple conditions encountered in audio systems.
• Through-hole reliability — Radial lead can construction and standard lead spacing simplify assembly and mechanical retention in legacy and serviceable designs.
• Thermal endurance — 2000 hours endurance at 85 °C provides predictable life characteristics for equipment operating within the specified temperature range.
• Compact footprint — φ16 × 30.5 mm package offers significant capacitance in a small radial form factor for space-constrained assemblies.
• RoHS compliant — Conforms to RoHS directive requirements for restricted substances.

Why Choose UKL1J681MHD?

UKL1J681MHD combines a high nominal capacitance with a 63 V rating and low leakage current in a compact radial lead package, making it suitable for audio-focused designs that require reliable bulk capacitance and defined ripple performance. Its specified endurance at 85 °C and RoHS compliance provide the predictability and regulatory alignment engineers expect for production and service applications.

Please note that this part is listed as End Of Life; confirm availability and suitability for your project requirements before specifying it for new designs or production runs.

If you would like pricing, availability or to request a quote, please contact sales or submit a quote request to receive further assistance.