UPJ1K681MHD6

The UPJ1K681MHD6 is a radial-lead aluminum electrolytic capacitor in Nichicon’s UPJ series designed for low-impedance power applications. It provides a 680 µF capacitance at an 80 V rating in a compact φ18 × 30.5 mm can, offering a balance of capacitance, voltage handling and endurance for general-purpose and power-supply designs.

Specifically optimized for switching power supplies and general-purpose power filtering, this part delivers long operating life and measurable ripple-handling capability suitable for sustained use in demanding thermal environments.

Key Features

• Electrical Performance — Rated capacitance of 680 µF with a tolerance of -20% to +20% and polarized construction for DC applications.
• High Voltage Rating — 80 V rated voltage for use where elevated DC bus voltages are required.
• Low Loss (tan δ) — tan δ = 0.08 measured at 20°C, 120 Hz and 80 V, indicating controlled dissipation for stable performance under AC ripple.
• Ripple Current Capability — Handles 884 mA at 120 Hz (low frequency) and 1.3 A at 200 kHz (high frequency), supporting switching regulator and decoupling duties.
• Reliability & Endurance — Endurance rated to 5,000 hours at +105°C, supporting long-term operation in elevated-temperature environments.
• Operating Temperature Range — −55°C to +105°C for broad environmental tolerance.
• Compact Radial Package — φ18 × 30.5 mm can with 7.5 mm lead spacing (±0.5 mm) and radial lead mounting for through-hole assembly; available in bulk or bag packing (no terminal forming).
• RoHS Compliant — Manufactured in compliance with RoHS requirements.

Typical Applications

• Switching Power Supplies — Suited for bulk filtering and smoothing in switch-mode power supply circuits where low impedance and ripple handling are required.
• General-Purpose Power Filtering — Use in DC link, rail decoupling or other general-purpose power-filtering roles needing 680 µF at 80 V.
• Industrial and Commercial Electronics — Applicable where long life at elevated temperature and robust ripple performance are necessary in through-hole assemblies.

Unique Advantages

• Long High‑Temperature Endurance: 5,000 hours rated at +105°C, enabling sustained operation in thermally demanding applications.
• Measurable Ripple Handling: Defined ripple current ratings at both 120 Hz and 200 kHz allow designers to quantify thermal and lifetime impact under real operating conditions.
• High Voltage Capability: The 80 V rating supports higher-voltage DC systems without series stacking or additional derating.
• Low Loss Characteristic: tan δ = 0.08 (20°C, 120 Hz, 80 V) helps reduce heat generation and improves efficiency in AC ripple environments.
• Through-Hole Robustness: Radial lead can package with 7.5 mm lead spacing simplifies assembly and mechanical retention for PCB-mounted power stages.
• Production Availability: Mass-production status ensures consistent supply for volume designs.

Why Choose UPJ1K681MHD6?

UPJ1K681MHD6 positions itself as a reliable, long-life aluminum electrolytic option for designers needing 680 µF at 80 V with proven ripple-handling and low-loss characteristics. Its 5,000-hour endurance at +105°C and RoHS compliance make it suitable for sustained service in switching supplies and general-purpose power filtering applications.

This part is appropriate for engineers and procurement teams building through-hole power electronics who require a compact φ18 can, defined electrical performance, and consistent availability from Nichicon’s UPJ series.

Request a quote or contact sales to discuss pricing, availability and lead times for UPJ1K681MHD6.