UCN1E821MCL1GS

The UCN1E821MCL1GS is a chip-type aluminum electrolytic capacitor in the Nichicon UCN series designed for high reliability applications. It delivers 820 µF capacitance at a 25 V rating with low ESR and long-life characteristics tailored for demanding electronic systems.

Engineered for surface-mount assembly and carrier-tape feed, this AEC-Q200 qualified, RoHS-compliant capacitor supports operation from −40 °C to 125 °C and is specified for 3000 hours at 125 °C, making it suitable for temperature-challenging environments in automotive electronics.

Key Features

• Capacitance & Voltage: 820 µF rated capacitance at 25 V, with ±20% tolerance for predictable energy storage and bulk decoupling.
• Low ESR: ESR of 200 mΩ (measured at 100 kHz) to reduce voltage drop and heat generation under AC ripple conditions.
• High Temperature Operation: Rated operating temperature range −40 °C to 125 °C with endurance specified for 3000 hours at 125 °C.
• Ripple Current Capability: Specified ripple current of 250 mA at 120 Hz and 500 mA at 10 kHz to support dynamic power demands.
• Surface-Mount, Tape-Fed Packaging: Radial can SMD, compatible with automatic mounting machines fed from carrier tape for high-throughput production.
• Automotive Grade Reliability: AEC-Q200 qualification and RoHS compliance for regulated manufacturing and deployment in vehicle electronics.
• Compact Footprint: Chip dimensions approximately 1.0 × 1.0 cm with recommended land size 1.03 × 1.03 cm to save board space.

Typical Applications

• Automotive power systems: Bulk smoothing and decoupling on vehicle power rails where wide temperature range and AEC-Q200 qualification are required.
• Electronic control units (ECUs): Local energy storage and ripple suppression for control modules operating across −40 °C to 125 °C.
• Power management modules: Use in DC–DC converter output filtering and intermediate energy buffering leveraging low ESR and high ripple current ratings.

Unique Advantages

• Proven AEC‑Q200 Qualification: Meets AEC-Q200 requirements for component-level reliability in automotive electronics.
• Long Life at Elevated Temperature: Specified 3000 hours at 125 °C for predictable end-of-life behavior in high-temperature applications.
• Performance Under Load: Low ESR (200 mΩ at 100 kHz) and specified ripple currents minimize losses and thermal stress during dynamic operation.
• Assembly‑Friendly Package: Tape-fed surface-mount chip form factor streamlines automated placement and reduces assembly handling.
• Regulatory Compliance: RoHS compliant to support regulated manufacturing processes and end-products.

Why Choose UCN1E821MCL1GS?

UCN1E821MCL1GS combines high capacitance, low ESR, and automotive-grade qualification to address power filtering and bulk energy storage needs in temperature-challenging environments. Its tape-fed surface-mount can format supports automated production while the 3000-hour endurance at 125 °C provides designers with a clear reliability profile for long-life applications.

This part is well suited to engineers specifying components for automotive power electronics and other embedded systems that require robust performance, traceable qualification, and compact board-level integration.

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