UUN1V331MNJ6MS

The UUN1V331MNJ6MS is a chip-type, bi-polarized aluminum electrolytic capacitor from Nichicon’s UUN series, optimized for surface-mount assembly on high-density PCBs. It provides 330 µF capacitance at 35 V with bipolar operation across a wide temperature range, making it suitable for general-purpose AC coupling, decoupling and filtering in compact electronic designs.

Key Features

• Capacitance & Voltage — 330 µF rated capacitance at 35 V, with tolerance of ±20% (–20% to +20%).
• Bipolar Construction — Bi-polarized design enables AC or polarity-reversing applications where non-polar behavior is required.
• Temperature & Endurance — Rated for operation from –55 °C to +105 °C with an endurance specification of 2000 hours at 105 °C (with polarity inversion every 250 hours).
• Ripple Current & Frequency Performance — Rated ripple current of 450 mA at 120 Hz and 675 mA at 10 kHz, with frequency coefficients from the UUN series applicable to the 100–470 µF range.
• Surface-mount Package — Chip-type radial can for SMD assembly; designed for automatic mounting machines fed with carrier tape for high-volume production.
• Reliability Metrics — Leakage current specified as not more than 0.03CV (µA) after 1 minute at 20 °C; tan δ limits appropriate for a 35 V rated device (tan δ max 0.14 at 120 Hz, 20 °C).
• Regulatory Compliance — Compliant with the RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• AC Coupling and Signal Conditioning — Bipolar construction supports circuits that require reversible or AC voltage handling for filtering and coupling tasks.
• Power Supply Decoupling — Provides bulk capacitance and ripple handling on compact, high-density PCBs for power conditioning and smoothing.
• Industrial and Instrumentation Electronics — Wide –55 °C to +105 °C temperature range and defined endurance make it suitable for industrial-grade assemblies requiring reliable performance.
• Telecommunications and Consumer Equipment — Surface-mount, tape-fed packaging enables automated assembly of mid-volume to high-volume consumer and comms PCBs needing higher capacitance in a compact layout.

Unique Advantages

• Bipolar capability for AC use — Eliminates the need for polarity-sensitive placement in circuits that experience bidirectional voltages, simplifying layout and design choices.
• High capacitance in an SMD chip form — 330 µF nominal capacitance provides significant bulk energy storage while supporting surface-mount manufacturing processes.
• Defined high-temperature endurance — 2000 hours at 105 °C with polarity inversion demonstrates predictable aging and performance retention for long-term deployments.
• Frequency-aware ripple handling — Published ripple current ratings at 120 Hz and 10 kHz, along with series frequency coefficients, allow designers to size capacitors against expected operating frequencies.
• Assembly-friendly packaging — Designed for carrier-tape feeding to automatic pick-and-place equipment, aiding efficient PCB assembly.
• RoHS compliance — Meets applicable RoHS directives for environmental and regulatory requirements.

Why Choose UUN1V331MNJ6MS?

The UUN1V331MNJ6MS delivers a balance of high capacitance, bipolar operation and SMD assembly compatibility for engineers designing compact, reliable electronics. Its datasheet-backed endurance, temperature range and ripple-current specifications make it well suited to general-purpose filtering, decoupling and AC-coupling tasks across industrial, telecom and consumer product designs.

Choose this Nichicon UUN-series part when you need predictable, verifiable capacitor performance in automated surface-mount production and when bipolar behavior and wide temperature tolerance are required.

Request a quote or contact sales to discuss pricing, availability and how UUN1V331MNJ6MS can fit your next design.