UUN2A101MNJ1MS

The UUN2A101MNJ1MS is a chip‑type, bi‑polar aluminum electrolytic capacitor from Nichicon’s UUN series, engineered for surface mounting on high‑density PC boards. It delivers 100 µF capacitance at a 100 V rating in a compact radial can SMD package and is RoHS compliant.

Designed for general‑purpose electronic designs that require bipolar operation across a wide temperature range, it supports automated assembly and provides defined endurance and ripple performance for reliable operation in demanding environments.

Key Features

• Capacitance & Voltage — 100 µF nominal capacitance with a 100 V rated voltage and ±20% tolerance at 120 Hz, 20°C.
• Bi‑Polar Construction — Bi‑polarized design suited for applications requiring operation without a fixed polarity across a wide temperature range of −55°C to +105°C.
• Package & Mounting — Chip type radial can SMD package sized L: 2.15 × D: 1.8 cm with surface‑mount land size 1.83 × 1.83 cm; applicable to automatic mounting machines fed with carrier tape for efficient PCB assembly.
• Endurance & Reliability — Rated for 2000 hours at 105°C with specified endurance test conditions including periodic polarity inversion.
• Ripple Current Performance — Rated ripple current of 310 mA at 120 Hz and 465 mA at 10 kHz for the 100 µF / 100 V part.
• Leakage & Dissipation — Leakage current specified as not more than 0.03CV (µA) after one minute at 20°C; tangent of loss angle (tan δ) maximum 0.09 at 100 V (measurement: 120 Hz, 20°C).
• Higher Capacitance Chip Options — Part of a chip‑type family that offers higher capacitance in larger case sizes (φ12.5, φ16, φ18) for designers needing compact, high‑capacitance solutions.
• Regulatory — Compliant with RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• General‑purpose electronic circuits — Provides bulk capacitance in circuits that require bipolar capacitors for AC or polarity‑reversing conditions.
• High‑density surface‑mount assemblies — Chip‑type radial can SMD package is designed for placement on compact PCBs where board real estate is constrained.
• Automated PCB production — Compatible with automatic mounting machines fed by carrier tape to streamline assembly processes.
• Wide‑temperature environments — Suitable for designs operating across −55°C to +105°C where stable performance and defined endurance are needed.

Unique Advantages

• Wide operating temperature range: −55°C to +105°C rating supports designs that must operate across extreme ambient conditions.
• Bipolar capability: Allows use in circuits where polarity can reverse, enabling broader application flexibility compared with polarized types.
• Compact, high‑capacitance chip form: 100 µF in a chip‑type SMD radial can reduces board footprint while delivering substantial capacitance.
• Defined endurance specification: 2000 hours at 105°C (with polarity inversion protocol) gives a measurable reliability baseline for long‑term designs.
• Measured ripple performance: Specified ripple current values at 120 Hz and 10 kHz allow designers to size capacitors against real operating ripple conditions.
• RoHS compliant: Meets current RoHS requirements for environmental and regulatory compliance.

Why Choose UUN2A101MNJ1MS?

UUN2A101MNJ1MS places a 100 µF / 100 V bi‑polar aluminum electrolytic capacitor into a chip‑type SMD package intended for high‑density boards and automated assembly. Its combination of bipolar construction, wide temperature rating, and specified endurance makes it suitable for general‑purpose electronic designs that demand reliable capacitance under varying polarity and thermal conditions.

This part is a practical choice for engineers and procurement teams seeking a compact, RoHS‑compliant capacitor with clear electrical and reliability specifications from the Nichicon UUN series.

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