UCX1V122MNQ1MS

CAP ALUM 1200UF ±20% 35V SMD
Part Description

1200 µF 35 V ±20% Aluminum Electrolytic Capacitor, SMD

Quantity 1,688 Available (as of November 3, 2026)
Product CategoryAluminum Electrolytic Capacitors
Part SeriesUCX
ManufacturerNichicon
Manufacturing StatusNot Recommended for New Designs
Manufacturer Standard Lead TimeContact Us
Datasheet

Specifications & Environmental

ApplicationsAutomotive, High Temperature ReflowCapacitance1.2 mFECCNEAR99
ESR50 mOhm @ 100 kHzHeight Seated (Max)1.75 cmHTS Code8532.22.0020
ImpedanceN/ALead SpacingN/ALifetime @ Temp2000 h @ 135°C
Moisture Sensitivity LevelN/AMounting MethodSurface MountOperating Temperature-40°C - 135°C
Package / CaseRadial, Can - SMDPolarizationPolarRatingsAEC-Q200
REACH ComplianceREACH AffectedRipple Current High Frequency1.4 A @ 10 kHzRipple Current Low Frequency700 mA @ 120 Hz
RoHS ComplianceCompliantSize / Dimension16.5 x 18 mmSurface Mount Land Size18.3 x 18.3 mm
Tolerance-20%~20%Voltage35 V

Overview of UCX1V122MNQ1MS – Chip Type Aluminum Electrolytic Capacitor, 35 V, 1.2 mF, +135°C

The UCX1V122MNQ1MS is a chip-type aluminum electrolytic capacitor designed for surface-mount assembly and high-temperature operation. With a rated capacitance of 1.2 mF at 35 V and an operating temperature range from −40 °C to +135 °C, it targets electronics that require stable bulk capacitance and reliable performance in elevated-temperature environments.

Engineered for automated production, the part supports carrier-tape feeding and offers specifications tailored for automotive applications and high-temperature power electronics, including low-temperature ESR characterization and extended endurance at 135 °C.

Key Features

  • High-temperature operation — Rated for continuous use from −40 °C to +135 °C, with endurance specified for 2000 hours at 135 °C.
  • Capacitance and voltage — 1.2 mF nominal capacitance at a rated voltage of 35 V, with tolerance of −20% to +20%.
  • Low-temperature ESR specification — ESR characterized down to −40 °C; equivalent series resistance specified as 50 mΩ at 100 kHz.
  • Ripple current capability — Specified ripple handling of 700 mA at 120 Hz and 1.4 A at 10 kHz to support power-supply decoupling and smoothing tasks.
  • Surface-mount, tape-fed package — Chip-type can package for automatic mounting machines; package case described as Radial, Can - SMD with recommended land size L: 1.83 × W: 1.83 cm.
  • Automotive-grade qualification — AEC-Q200 qualified, supporting use in designs that require that level of component qualification.
  • Regulatory compliance — RoHS compliant (2011/65/EU, (EU)2015/863), meeting current lead-free directive requirements.

Typical Applications

  • Automotive electronics — Bulk filtering and decoupling in control modules and power subsystems where AEC-Q200 qualification and high-temperature endurance are required.
  • High-temperature power electronics — Energy buffering and smoothing in power supplies and converters operating in elevated ambient temperatures up to +135 °C.
  • Surface-mount production environments — Automated, tape-fed assembly for high-volume manufacturing of compact boards requiring robust SMD electrolytic capacitance.

Unique Advantages

  • Long high-temperature endurance: 2000 hours at 135 °C provides predictable lifetime behavior for designs deployed in hot environments.
  • Low ESR at low temperature: ESR specified after −40 °C testing and rated at 50 mΩ (100 kHz), enabling improved ripple performance across a wide temperature range.
  • Tape-fed SMD convenience: Designed for automatic mounting machines, reducing manual handling and accelerating board assembly.
  • Designed for power-handling: Ripple current ratings of 700 mA (120 Hz) and 1.4 A (10 kHz) support effective smoothing in power stages and converters.
  • AEC-Q200 qualification: Provides confidence for use in applications that demand industry-recognized component qualification for automotive and related markets.
  • RoHS compliance: Meets current directive requirements for restricted substances.

Why Choose UCX1V122MNQ1MS?

The UCX1V122MNQ1MS positions itself as a high-reliability SMD aluminum electrolytic solution where elevated operating temperatures, controlled ESR behavior at low temperatures, and automated assembly are important. Its combination of 1.2 mF capacitance at 35 V, quantified ripple capability, and 2000-hour endurance at 135 °C makes it suitable for demanding power and automotive electronic designs.

Choose this part when your design requires durable bulk capacitance in a surface-mount form factor, AEC-Q200 qualification, and RoHS compliance—backed by specifications that support predictable electrical performance across a wide temperature range.

Request a quote or submit an inquiry to our sales team for pricing, availability, and guidance on integrating UCX1V122MNQ1MS into your next design.

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    Date Founded: 1950


    Headquarters: Nakagyo, Kyoto, Japan


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