UUN1J331MNQ6MS

The UUN1J331MNQ6MS is a chip-type, bi-polarized aluminum electrolytic capacitor in Nichicon’s UUN series designed for surface mounting on high-density printed circuit boards. With a rated capacitance of 330 µF and a 63 V rating, it targets general-purpose electronics that require higher capacitance in an SMD can-style package.

Key value comes from its bi-polar construction, wide operating temperature range (−55 °C to +105 °C), and compatibility with automated carrier-tape mounting, making it suitable for production environments that need compact, reliable bulk energy storage and filtering.

Key Features

• Bi-Polarized Construction  Allows operation without a defined polarity, useful where waveform reversal or bipolar operation is expected.
• Capacitance & Voltage  330 µF rated capacitance at 63 V for bulk filtering and energy smoothing in compact assemblies.
• Wide Temperature Range  Specified for operation from −55 °C to +105 °C, supporting designs exposed to broad environmental conditions.
• Endurance  Rated for 2000 hours at 105 °C with polarity inversion every 250 hours per the endurance test, with capacitance change within ±20% after test.
• Ripple Current Characteristics  Ripple current rating of 590 mA at 120 Hz and 885 mA at 10 kHz; frequency coefficients provided in the datasheet allow designers to scale ripple performance across frequencies.
• Loss and Low-Temperature Stability  Tangent of loss angle (tan δ) for 63 V is specified (max. 0.10 at 120 Hz, 20 °C); low-temperature impedance ratios are provided (Z(−25 °C)/Z(+20 °C) = 2, Z(−40 °C)/Z(+20 °C) = 3 for 63 V).
• SMD Can Package for High-Density PCBs  Chip-type radial can SMD package designed for surface mounting on high-density boards and compatible with automatic mounting machines fed by carrier tape.
• RoHS Compliant  Conforms to RoHS directive (2011/65/EU, (EU)2015/863), suitable for regulated product environments.
• Design Dimensions  Physical size L: 2.15 cm × D: 1.8 cm with recommended land size L: 1.83 cm × W: 1.83 cm for board layout.

Typical Applications

• General-purpose electronics  Used where a surface-mount, higher-capacitance bi-polar electrolytic capacitor is required for filtering, coupling, or energy storage in compact assemblies.
• High-density PCB assemblies  Designed for surface mounting and compatibility with carrier-tape automated placement for space-constrained board designs.
• Designs operating across wide temperatures  Suitable for equipment that must function between −55 °C and +105 °C while maintaining capacitance and specified ripple performance.

Unique Advantages

• Bi-polar flexibility: Eliminates polarity constraints for applications requiring bipolar operation or AC coupling.
• High capacitance in an SMD can: Provides 330 µF at 63 V in a chip-type package to save board area while delivering bulk energy storage.
• Production-ready packaging: Compatible with carrier-tape automated mounting for efficient PCB assembly and placement.
• Engineered endurance: 2000-hour rating at 105 °C with defined test conditions for predictable long-term performance.
• Measured ripple and loss data: Ripple current specifications at 120 Hz and 10 kHz plus tan δ and low-temperature impedance figures allow precise thermal and frequency design trade-offs.
• RoHS compliance: Meets current RoHS requirements for use in regulated product builds.

Why Choose UUN1J331MNQ6MS?

The UUN1J331MNQ6MS delivers a combination of higher capacitance, bi-polar operation, and SMD can packaging that addresses the needs of compact, high-density PCB designs. Its specified ripple performance, loss characteristics, and endurance data give engineers clear, verifiable parameters for thermal and lifetime budgeting.

As part of Nichicon’s UUN series, this part is suited to designers and procurement teams seeking a reliable, RoHS-compliant aluminum electrolytic solution for general-purpose applications that demand wide temperature capability and automated assembly compatibility.

Request a quote or contact sales to discuss pricing, lead times, and availability for UUN1J331MNQ6MS.