UWH1A331MCL1GS

The UWH1A331MCL1GS is a chip‑type aluminum electrolytic capacitor from Nichicon’s UWH series designed for high‑temperature, high‑reliability surface‑mount applications. It provides 330 µF capacitance at 10 V in a compact SMD can package and is specified for continuous operation up to +125 °C with long‑term endurance.

Engineered for automated assembly and harsh operating environments, this part targets automotive and other demanding electronic systems where AEC‑Q200 qualification, high reflow compatibility and extended high‑temperature life are required.

Key Features

• Capacitance & Voltage — 330 µF nominal capacitance rated at 10 V with ±20% tolerance (measured at 120 Hz, 20 °C).
• High‑Temperature Operation — Rated for operation from −40 °C to +125 °C and endurance specified for 1000 hours at +125 °C.
• Reflow Compatibility — Corresponds with 260 °C peak reflow soldering; recommended reflow condition: 260 °C peak for 5 seconds. Additional recommended profile: 230 °C over 60 seconds (two cycles; specific allowance for select sizes noted in the series datasheet).
• Automotive Qualification — AEC‑Q200 qualified to support applications requiring automotive‑grade reliability.
• Low Leakage — Leakage current after 1 minute at rated voltage, 20 °C, is not more than 0.03CV or 4 µA (whichever is greater).
• Ripple Current Performance — Specified ripple currents of 112 mA at 120 Hz and 168 mA at 10 kHz for stable filtering and decoupling behavior at the rated voltage.
• Durability & Shelf Life — Endurance: after 1000 hours at 125 °C with rated voltage applied, capacitance change remains within ±30%, tan δ within specified limits, and leakage current remains ≤ initial specified value. Shelf life specified with recovery procedure following storage at 125 °C for 1000 hours.
• Compact SMD Can Package — Chip‑type, surface‑mount radial can suitable for automated placement; nominal footprint approximately 1.0 cm × 1.0 cm.

Typical Applications

• Automotive Electronics — AEC‑Q200 qualification and +125 °C endurance make this capacitor suitable for automotive control modules and electronic subsystems that require reliable smoothing and energy storage under elevated temperatures.
• High‑Temperature Electronics — Designed for circuits that operate continuously at elevated temperatures up to +125 °C and require components that maintain capacitance and leakage performance over time.
• Automated Surface‑Mount Assembly — Chip type packaged for use with carrier tape and automatic mounting machines, supporting efficient PCB assembly and high‑temperature reflow processes.

Unique Advantages

• High‑temperature endurance: 1000‑hour specification at +125 °C provides predictable long‑term performance in hot environments.
• Reflow process robustness: Compatibility with 260 °C peak reflow profiles enables use with modern lead‑free assembly processes.
• Automotive‑grade reliability: AEC‑Q200 qualification supports deployment in demanding vehicle electronics and safety‑critical systems.
• Low leakage specification: Tight leakage limits (0.03CV or 4 µA) help maintain efficiency and predictable discharge behavior in low‑voltage circuits.
• Defined ripple handling: Published ripple current ratings at 120 Hz and 10 kHz allow designers to select this part with confidence for decoupling and bulk storage roles.
• Compact SMD form factor: Chip‑type can offers a small footprint (~1.0 cm × 1.0 cm) suitable for dense board layouts and automated placement.

Why Choose UWH1A331MCL1GS?

The UWH1A331MCL1GS positions itself as a reliable, high‑temperature SMD aluminum electrolytic capacitor for engineers designing for elevated operating temperatures and automated assembly. With 330 µF at 10 V, AEC‑Q200 qualification, defined endurance at +125 °C and reflow compatibility to 260 °C, it supports long‑life, high‑reliability applications where predictable capacitance, low leakage and controlled ripple performance matter.

This part is well suited to teams developing automotive electronics and other systems requiring compact, surface‑mount energy storage components that meet stringent thermal and reliability demands, backed by Nichicon’s UWH series specifications.

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