UCM1E392MNJ1MS

The UCM1E392MNJ1MS is a chip-type aluminum electrolytic capacitor designed for surface-mount assembly. It delivers 3.9 mF (3900 µF) capacitance at a 25 V rating in a compact φ16 × 21.5L package and is optimized for low impedance performance.

Engineered for demanding temperature and endurance requirements, this part supports a wide operating range of -55 °C to 105 °C, a rated lifetime of 5000 hours at 105 °C, and AEC‑Q200 qualification—making it suitable for automotive and other high-reliability surface-mount power applications.

Key Features

• Capacitance & Voltage — 3.9 mF (3900 µF) capacitance with ±20% tolerance at a 25 V rated voltage, providing substantial bulk energy storage in a single SMD component.
• Low Impedance Chip Type — Chip-type construction with low impedance characteristics for improved smoothing and transient response in power rails.
• Ripple Current Handling — Supports 1.27 A low-frequency ripple current (120 Hz) and 2.54 A high-frequency ripple current (10 kHz), enabling use where both LF and HF ripple dissipation are required.
• Leakage Current — Specified leakage current of 975 µA, allowing predictable standby and leakage behavior in design calculations.
• Temperature & Endurance — Rated for -55 °C to 105 °C with a life/endurance rating of 5000 hours at 105 °C, meeting long-term stability requirements under elevated temperature stress.
• Automotive Qualification — AEC‑Q200 rating is included in the product data, supporting usage in automotive-grade designs where that qualification is required.
• Surface-Mount Package & Assembly — Radial can SMD package (φ16 × 21.5L) in embossed carrier taping suitable for automatic mounting; surface-mount land size provided (L: 1.63 × W: 1.63 cm) for PCB footprint planning.
• Standards & Compliance — RoHS‑compliant construction as indicated in the product data.

Typical Applications

• Automotive power electronics — AEC‑Q200 qualification and a -55 °C to 105 °C operating range make this capacitor suitable for automotive power rails and modules that require 3.9 mF at 25 V and long-term endurance.
• Board-level bulk filtering — High capacitance and low impedance with substantial ripple current ratings (1.27 A @120 Hz, 2.54 A @10 kHz) support bulk smoothing on DC power buses and intermediate storage on power distribution boards.
• DC‑DC converter output filtering — Compact chip package combined with high-frequency ripple capability addresses output decoupling where space and ripple dissipation are critical design constraints.

Unique Advantages

• High bulk capacitance in an SMD form — 3900 µF in a φ16 × 21.5L chip package reduces board area compared with multiple smaller parts.
• Designed for automated assembly — Embossed carrier taping enables reliable pick-and-place operation and streamlines high-volume manufacturing.
• Built for elevated-temperature endurance — 5000 hours at 105 °C provides predictable long-term performance in thermally demanding environments.
• Measurable ripple handling — Specified ripple currents at both low and high frequencies let designers size thermal and ripple-margin budgets precisely.
• Standards-backed qualification — AEC‑Q200 rating and RoHS compliance provide documented conformance for regulated and automotive applications.

Why Choose UCM1E392MNJ1MS?

UCM1E392MNJ1MS positions itself as a robust surface-mount solution where high bulk capacitance, reliable ripple dissipation, and extended high-temperature endurance are required. Its chip-type, low-impedance design and embossed carrier taping make it well suited for production environments that demand automated assembly and consistent electrical performance.

This capacitor is ideal for engineers designing power rails and filtering networks in automotive and industrial systems that need verified lifetime characteristics (5000 hours at 105 °C), AEC‑Q200 qualification, and clear electrical parameters for ripple, leakage, and tolerance.

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