UCZ1E331MCS1GS

The UCZ1E331MCS1GS is a Nichicon UCZ series aluminum electrolytic chip capacitor designed for high-reliability, high-temperature surface-mount applications. It is a polarized, chip-type capacitor specified for continuous operation across a wide temperature range from -40 °C to +125 °C and is suitable for automated assembly processes.

Key value for designers comes from its combination of 330 µF capacitance at 25 V, low-temperature ESR specification (including ESR measured after a -40 °C test), AEC-Q200 qualification, and RoHS compliance—delivering robust decoupling and smoothing performance in demanding environments.

Key Features

• Capacitance & Voltage — 330 µF rated capacitance at 25 V with ±20% tolerance, providing bulk energy storage and decoupling for mid-voltage rails.
• Wide Operating Temperature — Specified for -40 °C to +125 °C operation, enabling use in elevated-temperature environments and designs exposed to cold starts.
• High-Temperature Endurance — Rated lifetime of 3000 hours at 125 °C, supporting long-term reliability under sustained thermal stress.
• Low-Temperature ESR Specification — ESR characterized at low temperature and after -40 °C testing, with an equivalent series resistance of 150 mΩ at 100 kHz to maintain performance under cold conditions.
• Ripple Current Capability — Rated ripple currents of 250 mA at 120 Hz and 500 mA at 10 kHz for effective AC filtering across a range of frequencies.
• Surface-Mount, Tape-Fed Packaging — Chip (radial can SMD) package intended for automatic mounting machines fed with carrier tape; compact footprint (L: 1 × D: 1 cm) and recommended land size (1.03 × 1.03 cm).
• Standards & Compliance — AEC-Q200 qualified and RoHS compliant, supporting regulated production requirements and reliability qualification workflows.

Typical Applications

• Automotive Electronics — Use in automotive control and power circuits where AEC-Q200 qualification, wide operating temperature, and endurance at 125 °C are required.
• Power Supply Decoupling — Bulk energy storage and smoothing for onboard DC rails where 330 µF at 25 V and controlled ESR deliver stable voltage under load transients.
• High-Temperature Modules — Component-level solution for assemblies that must withstand extended high-temperature operation and automated surface-mount assembly.

Unique Advantages

• Designed for extreme temperature ranges — Specified from -40 °C to +125 °C so designs maintain capacitance and ESR performance across wide thermal cycles.
• Proven high-temperature endurance — 3000 hours at 125 °C rating gives confidence for long-term use in thermally demanding environments.
• Low-temperature ESR characterization — Added ESR specification after -40 °C testing reduces uncertainty for cold-start and low-temperature operation.
• Automated assembly ready — Tape-fed, surface-mount chip form factor and compact footprint streamline placement for high-volume production.
• Standards-aligned reliability — AEC-Q200 qualification and RoHS compliance support regulated and safety-focused design processes.
• Frequency-flexible ripple handling — Specified ripple current ratings at both 120 Hz and 10 kHz accommodate filtering needs across low- and high-frequency domains.

Why Choose UCZ1E331MCS1GS?

The UCZ1E331MCS1GS balances high-capacitance storage with controlled ESR behavior across extreme temperatures, making it a suitable choice for designers targeting reliable power decoupling in harsh or automotive environments. Its AEC-Q200 qualification, RoHS compliance, and tape-fed SMD form factor simplify validation and production integration.

This capacitor is well suited to engineers and procurement teams developing systems that demand thermal robustness, reliable ripple performance, and automated assembly readiness—delivering long-term value through specification-driven performance and established manufacturer support.

Request a quote or contact sales to discuss availability, lead times, and sample options for UCZ1E331MCS1GS.