UCX1H122MNJ1MS

CAP ALUM 1200UF ±20% 50V SMD
Part Description

1200 µF 50 V ±20% Aluminum Electrolytic Capacitor, SMD

Quantity 969 Available (as of November 3, 2026)
Product CategoryAluminum Electrolytic Capacitors
Part SeriesUCX
ManufacturerNichicon
Manufacturing StatusMass Production
Manufacturer Standard Lead TimeContact Us
Datasheet

Specifications & Environmental

ApplicationsAutomotive, High Temperature ReflowCapacitance1.2 mFECCNEAR99
ESR40 mOhm @ 100 kHzHeight Seated (Max)2.25 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 Frequency1.9 A @ 10 kHzRipple Current Low Frequency950 mA @ 120 Hz
RoHS ComplianceCompliantSize / Dimension21.5 x 18 mmSurface Mount Land Size18.3 x 18.3 mm
Tolerance-20%~20%Voltage50 V

Overview of UCX1H122MNJ1MS – High‑Reliability 1.2 mF, 50 V Chip Aluminum Electrolytic Capacitor

The UCX1H122MNJ1MS is a chip‑type aluminum electrolytic capacitor engineered for high‑reliability applications. It combines a compact surface‑mount can package with specifications tailored for wide temperature operation and stringent ESR performance.

Designed for demanding environments, this part is AEC‑Q200 qualified and specified for operation from −40°C to +135°C, making it suitable for systems that require stable capacitance, controlled ESR, and extended endurance under high temperature stress.

Key Features

  • Capacitance & Voltage: 1.2 mF capacitance with a 50 V rated voltage and ±20% tolerance, usable where high bulk capacitance and moderate voltage headroom are required.
  • High‑Temperature Endurance: Rated for continuous operation up to +135°C with a specified lifetime of 2000 hours at 135°C, supporting long‑term stability in hot environments.
  • Low‑Temperature ESR Specification: ESR specified after −40°C testing and measured at 40 mΩ (100 kHz), enabling predictable performance across the full −40°C to +135°C operating range.
  • Ripple Current Capability: Supports 950 mA at 120 Hz and 1.9 A at 10 kHz, suitable for decoupling and power conditioning under dynamic load conditions.
  • Surface‑Mount Can Package: Chip type radial SMD in a compact can (L: 2.15 cm × D: 1.8 cm) with a recommended land size of 1.83 × 1.83 cm for automated placement and reflow processing.
  • AEC‑Q200 Qualified: Meeting AEC‑Q200 qualification provides a qualification baseline for designs targeting high reliability and automotive environments.

Typical Applications

  • Automotive Electronics: For use in automotive modules where AEC‑Q200 qualification and operation to +135°C are required for power smoothing and energy storage.
  • Power Management Modules: Bulk decoupling and filtering in DC‑DC converters and power rails that demand high ripple current capability and low ESR across wide frequencies.
  • High‑Temperature Electronics: Systems and assemblies exposed to elevated ambient temperatures that require capacitors with documented endurance at 135°C and long lifetime performance.

Unique Advantages

  • Proven High‑Temperature Performance: Specified lifetime of 2000 hours at 135°C gives designers quantifiable endurance for hot‑running applications.
  • Predictable Low‑Temperature Behavior: ESR characterized after −40°C testing provides predictable impedance and loss behavior across extreme low temperatures.
  • High Ripple Current Handling: Clear ripple current ratings at both low and high frequencies (120 Hz and 10 kHz) simplify selection for dynamic power environments.
  • Surface‑Mount, Automated Assembly Ready: Chip can package and defined land size enable placement with carrier tape and standard SMT processes.
  • Automotive‑Grade Qualification: AEC‑Q200 rating supports deployment in designs that require supplier qualification and reliability traceability.

Why Choose UCX1H122MNJ1MS?

The UCX1H122MNJ1MS is positioned for engineers who need a compact, high‑capacitance aluminum electrolytic solution with documented performance across −40°C to +135°C. Its low‑temperature ESR specification, quantified ripple current capability, and 2000‑hour endurance at 135°C make it suitable for power conditioning in demanding environments.

This part is a practical choice for designs requiring AEC‑Q200 qualification and the reliability advantages of a surface‑mount chip can capacitor. It delivers clear, verifiable specifications that simplify component selection and provide long‑term operational confidence.

If you would like a quote or more information on availability and lead times for UCX1H122MNJ1MS, please request a quote or contact sales for assistance.

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    Date Founded: 1950


    Headquarters: Nakagyo, Kyoto, Japan


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