UCZ1H821MNJ1MS

The UCZ1H821MNJ1MS is a high-reliability, chip-type aluminum electrolytic capacitor designed for surface-mount assembly and operation in elevated-temperature environments. It delivers 820 µF at 50 V in a compact SMD can package and is engineered for applications requiring robust filtering and bulk energy storage at temperatures up to +125 °C.

This part is AEC-Q200 qualified and RoHS compliant, offers a low-temperature ESR specification (with ESR measured at 78 mΩ at 100 kHz), and is compatible with automated tape-fed pick-and-place assembly for production-scale manufacturing.

Key Features

• Capacitance & Voltage — 820 µF rated capacitance with a 50 V rated voltage and ±20% tolerance for bulk decoupling and energy storage.
• High Temperature Operation — Rated for continuous use from −40 °C to +125 °C with endurance specified (3500 hours at 125 °C for the given case size).
• Low-Temperature ESR — Includes a low-temperature ESR specification; equivalent series resistance is specified as 78 mΩ at 100 kHz.
• Ripple Current Capability — Supports 1.05 A ripple at 120 Hz and 2.1 A at 10 kHz, enabling reliable filtering in high-dynamic power circuits.
• Automotive-Grade Reliability — AEC-Q200 qualified to support designs that require automotive-level qualification.
• Surface-Mount, Tape-Feed Compatible — Chip-type SMD can package designed for automatic mounting machines; recommended PCB land size L: 1.83 × W: 1.83 cm.
• Compliance — RoHS compliant (2011/65/EU, (EU)2015/863).

Typical Applications

• Automotive power rails — Bulk decoupling and smoothing for ECUs and control modules where AEC-Q200 qualification and +125 °C capability are required.
• DC–DC converters — Input/output filtering and energy storage in converters that demand high ripple handling and stability across temperature.
• Industrial power electronics — Bulk capacitance for embedded controllers and power modules operating in harsh or high-temperature environments.
• Motor drive and inverter systems — Energy buffering and ripple suppression in systems with elevated thermal stress and dynamic current demands.

Unique Advantages

• Designed for high ambient temperatures — Rated to +125 °C with long-term endurance (3500 hours at 125 °C), supporting durability in thermally demanding designs.
• Low-temperature performance guaranteed — ESR behavior is specified after −40 °C testing, improving predictability in cold-start and wide-temperature-range applications.
• Measurable ripple capability — Specified ripple currents at both low and high frequencies (1.05 A @120 Hz, 2.1 A @10 kHz) help ensure reliable filtering in switching power circuits.
• Automotive-grade qualification — AEC-Q200 qualification provides traceable automotive-level reliability for safety- and reliability-focused projects.
• Assembly-ready SMD form factor — Chip-type can packaging and tape-feed compatibility reduce PCB complexity and support automated assembly workflows.
• Compact footprint with clear land sizing — Physical dimensions and recommended land pattern (L: 1.83 × W: 1.83 cm) enable predictable layout and mechanical integration.

Why Choose UCZ1H821MNJ1MS?

The UCZ1H821MNJ1MS positions itself as a dependable solution for designers who need bulk capacitance and stable ESR across a wide temperature range. With 820 µF at 50 V, specified ripple ratings, and AEC-Q200 qualification, it is suited to demanding power-supply and control applications in automotive and industrial environments.

Engineers designing for high ambient temperature, long-life operation, and automated assembly will find this part helps reduce design risk: its endurance specification, low-temperature ESR requirements, and tape-feed SMD packaging offer a practical balance of performance, durability, and manufacturability.

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