UCD1J681MNQ1MS

The UCD1J681MNQ1MS is a chip-type aluminum electrolytic capacitor engineered for surface-mount installation on high-density PCBs. It delivers 680 µF capacitance at a 63 V rated voltage in a low-impedance design with operation to +105 °C, targeting applications that require robust power smoothing and decoupling in harsh environments.

Designed for automated assembly, this SMD can is compatible with carrier-tape feed and is AEC-Q200 qualified and RoHS compliant, making it suitable for automotive and other reliability-focused markets.

Key Features

• Capacitance & Voltage — 680 µF capacitance rated for 63 V operation, with ±20% tolerance at 120 Hz, 20 °C.
• Low Impedance, High-Frequency Performance — Specified ripple current of 845 mA at 120 Hz and 1.69 A at 10 kHz supports effective ripple suppression across low and high frequency ranges.
• Temperature & Endurance — Category temperature range from −55 °C to +105 °C with a rated lifetime of 5000 hours at 105 °C.
• Loss and Low-Temp Stability — tan δ max. 0.08 at 63 V (measured at 120 Hz, 20 °C); impedance ratios vs. +20 °C are specified (Z(−25 °C)/Z(+20 °C)=2, Z(−40 °C)/Z(+20 °C)=3, Z(−55 °C)/Z(+20 °C)=3) for predictable performance across temperature.
• Leakage Current — After 2 minutes' application of rated voltage at 20 °C, leakage current not more than 0.01 CV or 3 µA, whichever is greater.
• Package & Mounting — Radial can SMD package sized L: 1.65 × D: 1.8 cm with recommended surface-mount land of L: 1.83 × W: 1.83 cm; designed for surface mounting on high-density PCBs and compatible with automatic mounting machines fed by carrier tape.
• Qualification & Compliance — AEC-Q200 qualified and RoHS compliant (2011/65/EU, (EU)2015/863), supporting use in regulated and reliability-sensitive applications.
• Polarized Construction — Polarized aluminum electrolytic design for bulk energy storage and power rail smoothing.

Typical Applications

• Automotive electronic control units — Bulk and decoupling capacitor for power rails in ECUs and other in-vehicle modules where AEC-Q200 qualification and high-temperature endurance are required.
• Power supplies and DC–DC converters — Output filtering and ripple suppression, leveraging the specified ripple current ratings at 120 Hz and 10 kHz.
• High-density PCB power networks — Surface-mount can design and carrier-tape compatibility enable placement on compact, automated assembly lines.
• Industrial power electronics — Energy storage and smoothing in systems that demand operation to +105 °C and long endurance.

Unique Advantages

• High-temperature endurance: Rated lifetime of 5000 hours at 105 °C provides long-term stability for thermally demanding applications.
• Low-impedance performance: Measured tan δ and impedance ratios across temperatures support consistent ripple handling and decoupling effectiveness.
• Automated assembly ready: Designed for surface mounting and carrier-tape feeding to streamline high-volume production.
• Automotive-ready qualification: AEC-Q200 qualification enables use in designs requiring recognized automotive component qualification.
• Clear leakage specification: Defined leakage current limit (0.01 CV or 3 µA after 2 minutes at 20 °C) for predictable standby behavior in power systems.
• Compact SMD can package: Small footprint and specified land pattern make it suitable for high-density board layouts without sacrificing capacitance.

Why Choose UCD1J681MNQ1MS?

The UCD1J681MNQ1MS combines high capacitance and a 63 V rating with a low-impedance, chip-type SMD construction designed for automated assembly and demanding thermal environments. Its AEC-Q200 qualification and RoHS compliance make it an appropriate choice for automotive and other applications that require traceable qualification and regulatory adherence.

This capacitor is well suited for engineers specifying bulk filtering and ripple suppression on compact PCBs, particularly where elevated operating temperatures and long endurance are required. The clear electrical and mechanical specifications simplify integration and long-term design planning.

Request a quote or submit an inquiry to get pricing and availability for UCD1J681MNQ1MS and to discuss qualification or sourcing needs for your design.