UCZ1H681MNJ1MS

The UCZ1H681MNJ1MS is a chip-type aluminum electrolytic capacitor engineered for high-reliability, high-temperature applications. It combines a 680 µF capacitance with a 50 V rating in a surface-mount radial can designed for automated, carrier-tape mounting.

Designed for environments that demand wide operating temperature and low ESR at subzero conditions, this part is AEC-Q200 qualified and RoHS compliant, with specified performance through -40 °C to +125 °C and defined endurance at elevated temperature.

Key Features

• Capacitance & Voltage — 680 µF nominal capacitance with a 50 V rated voltage and ±20% tolerance at 120 Hz, 20 °C.
• Low-temperature ESR Specification — ESR specified after the -40 °C test to ensure defined electrical performance in cold conditions; measured ESR: 78 mΩ at 100 kHz.
• High-temperature Endurance — Rated operating temperature range of -40 °C to +125 °C with a specified lifetime of 3500 hours at 125 °C.
• Ripple Current Capability — Specified ripple current of 1.05 A at 120 Hz and 2.1 A at 10 kHz to support dynamic power filtering.
• Reliability & Compliance — AEC-Q200 qualified and RoHS directive (2011/65/EU,(EU)2015/863) compliant for regulated applications.
• Surface-mount, Tape-fed Packaging — Chip-type radial can SMD suitable for automatic mounting machines fed with carrier tape; package dimensions L: 1.65 × D: 1.8 cm and recommended land size L: 1.83 × W: 1.83 cm.
• Polarized — Polarized aluminum electrolytic construction for DC power applications.

Typical Applications

• Automotive Power Electronics — Bulk and decoupling capacitor for ECUs and power modules where AEC-Q200 qualification and +125 °C operation are required.
• DC–DC Converter Output Filtering — Smoothing and stability in converter output stages, leveraging the high capacitance and defined ripple current ratings.
• Backup and Hold-up Circuits — Energy smoothing and short-term hold-up in systems that operate in high-temperature environments.
• Industrial Controls — Power conditioning in motor drives and control electronics exposed to wide temperature ranges.

Unique Advantages

• Defined low-temperature electrical performance — ESR specification after the -40 °C test ensures predictable behavior in cold-start conditions.
• High-temperature rated with proven lifetime — 3500 hours at 125 °C provides a quantified endurance metric for long-term high-temperature use.
• Tape-fed surface-mount form factor — Designed for automated assembly to simplify manufacturing and reduce handling variability.
• Measured ripple-handling — Dual-frequency ripple current specs (120 Hz and 10 kHz) enable designers to assess performance across real-world switching spectra.
• AEC-Q200 qualification and RoHS compliance — Supports regulated and automotive-grade design requirements while meeting current environmental directives.

Why Choose UCZ1H681MNJ1MS?

UCZ1H681MNJ1MS is positioned for designers who need a robust, high-capacitance, surface-mount electrolytic capacitor with verified performance across -40 °C to +125 °C. The combination of AEC-Q200 qualification, a defined low-temperature ESR specification, and quantified high-temperature lifetime makes it suitable for demanding automotive and industrial power systems.

Choosing this part delivers measurable long-term operating data (ripple current ratings and 3500 hours at 125 °C) and assembly-ready packaging, helping teams simplify BOM decisions while addressing reliability and thermal endurance requirements.

Request a quote or contact our sales team to obtain pricing, availability, and lead-time information for UCZ1H681MNJ1MS.