UCX1H122MNS1MS

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

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

Quantity 1,356 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 UCX1H122MNS1MS – 1.2 mF, 50 V Aluminum Electrolytic SMD Capacitor (135°C)

The UCX1H122MNS1MS is a chip-type aluminum electrolytic capacitor from Nichicon’s UCX series, engineered for high-temperature operation up to 135°C. It delivers 1.2 mF capacitance at a 50 V rating in a surface-mount, tape-fed radial can package suited for automated assembly.

Designed for demanding environments, this capacitor addresses power filtering and bulk energy storage needs where elevated ambient temperatures, robust ripple handling and AEC-Q200 qualification are required.

Key Features

  • High temperature range – Rated to operate from −40°C to +135°C for use in elevated-temperature electronics.
  • Capacitance and voltage – 1.2 mF nominal capacitance with a 50 V rated voltage and ±20% tolerance at 120 Hz, 20°C.
  • Low-temperature ESR characterization – ESR specified after testing at −40°C, with an equivalent series resistance of 40 mOhm measured at 100 kHz.
  • Endurance at elevated temperature – Qualified for 2000 hours of operation at 135°C under rated voltage per the UCX series endurance specification.
  • Ripple current capability – Rated for 950 mA ripple at 120 Hz and 1.9 A at 10 kHz to support power-conversion and filtering applications.
  • Surface-mount, tape-fed package – Chip-type radial can SMD package designed for automatic mounting machines; surface-mount land size L: 1.83 × W: 1.83 cm.
  • Automotive-grade and environmental compliance – AEC-Q200 Qualified and RoHS compliant.
  • Polarized design – Polarized electrolytic capacitor for DC filtering and bulk storage applications.

Typical Applications

  • Automotive electronics – Suited for power filtering and decoupling in automotive control modules and systems that require AEC-Q200 qualification and high-temperature endurance.
  • Power conversion and DC link circuits – 1.2 mF capacitance and 50 V rating provide bulk energy storage and smoothing for converters and regulators operating in warm environments.
  • High-temperature industrial electronics – Designed for equipment and modules that operate at elevated ambient temperatures and require stable capacitance and controlled ESR.

Unique Advantages

  • Proven high-temperature performance: Endurance tested for 2000 hours at 135°C, delivering predictable behavior in prolonged high-temperature exposure.
  • Cold-condition ESR validation: ESR is specified after −40°C testing and measured at 100 kHz (40 mOhm), enabling designers to account for low-temperature behavior.
  • Assembly-ready surface-mount format: Chip-type radial can SMD packaged for carrier-tape feed simplifies high-volume automated placement.
  • Robust ripple handling: Clear ripple current ratings at both low and high frequencies (950 mA at 120 Hz; 1.9 A at 10 kHz) support a range of power-management designs.
  • Automotive-grade qualification and compliance: AEC-Q200 Qualified and RoHS compliant for regulated and vehicle-level applications.

Why Choose UCX1H122MNS1MS?

UCX1H122MNS1MS balances high capacitance and voltage capability with validated performance across −40°C to +135°C, making it well suited for engineers designing power systems that must operate reliably in harsh temperature environments. Its low-temperature ESR characterization, defined ripple ratings and AEC-Q200 qualification provide predictable electrical performance and traceable reliability for demanding applications.

This part is a practical choice for design teams targeting automotive and high-temperature industrial electronics who need an SMD aluminum electrolytic capacitor with documented endurance and assembly-friendly packaging from a recognized manufacturer.

To request a quote or initiate a specification inquiry for UCX1H122MNS1MS, please contact sales or request a formal quote through the vendor’s commercial channels.

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