UCQ1V331MCL1GS

The UCQ1V331MCL1GS is a chip-type aluminum electrolytic capacitor from Nichicon’s UCQ series, engineered for surface-mount applications. It combines a 330 µF capacitance with a 35 V rating in a compact SMD can package designed for automated carrier-tape assembly.

Designed for use across a wide temperature range and for audio-focused designs, this part delivers AEC-Q200 qualification, RoHS compliance, and a defined endurance profile (2000 hours at 105°C), making it suitable for demanding automotive and audio electronics environments.

Key Features

• Capacitance & Voltage — 330 µF nominal capacitance with a 35 V rated voltage and ±20% tolerance (120 Hz, 20°C).
• Chip-type SMD Package — Radial, can-style SMD package intended for surface-mount assembly; compatible with automatic mounting machines fed by carrier tape.
• Temperature Range — Rated for operation from −55°C to +105°C for broad environmental tolerance.
• Endurance — Specified lifetime of 2000 hours at 105°C under rated voltage conditions.
• Ripple Current Capability — Specified ripple current of 400 mA at 120 Hz and 600 mA at 10 kHz, suitable for applications with AC ripple exposure.
• Reliability & Compliance — AEC-Q200 qualified and RoHS compliant (2011/65/EU, (EU)2015/863), supporting regulated and automotive design requirements.
• Polarized Electrolytic — Polarized aluminum electrolytic construction for standard polarized capacitor applications.
• Compact Footprint — Part dimensions approximately 1 cm × 1 cm with a recommended land pattern of 1.03 cm × 1.03 cm for surface-mount placement.
• Leakage & Loss Characteristics — Series datasheet specifies leakage current after 2 minutes at 20°C is ≤0.01CV or 3 µA (whichever is greater); tangent of loss angle (tan δ) for 35 V is specified (max. 0.13 at 120 Hz, 20°C).

Typical Applications

• Automotive electronics — Suited for vehicle electronic modules where AEC-Q200 qualification and operation from −55°C to +105°C are required.
• Audio equipment — Intended for audio-focused circuits as a chip-type acoustic series capacitor in SMD form.
• Space-constrained surface-mount designs — Compact can-style SMD package and carrier-tape compatibility enable automated assembly in compact PCBs.

Unique Advantages

• AEC-Q200 qualification: Enables use in designs targeting automotive-grade reliability and qualification requirements.
• Wide operating temperature: −55°C to +105°C rating supports deployment across harsh thermal environments.
• Defined high-temperature endurance: 2000 hours at 105°C provides a measurable life expectation for thermal stress conditions.
• Compact SMD can package: Small footprint (≈1 cm × 1 cm) helps reduce board area while remaining compatible with automated carrier-tape placement.
• Measured ripple handling: Specified ripple currents at both low and high frequencies (120 Hz and 10 kHz) allow selection based on application ripple profiles.
• Regulatory compliance: RoHS compliance simplifies regulatory acceptance for commercial and automotive programs.

Why Choose UCQ1V331MCL1GS?

The UCQ1V331MCL1GS positions itself as a compact, automotive-qualified aluminum electrolytic solution for applications that require a 330 µF, 35 V polarized SMD capacitor with proven endurance at elevated temperatures. Its combination of AEC-Q200 qualification, RoHS compliance, and carrier-tape-compatible SMD packaging makes it suitable for high-volume automated assembly in audio and automotive electronics.

This part is a practical choice for engineers specifying electrolytic capacitance in space-constrained designs that demand temperature resilience and defined ripple and leakage performance. The explicit endurance and loss specifications support engineering trades and reliability planning for longer-term use in fielded systems.

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