UUT1H100MCL1GS Equivalent & Substitute Parts

Part Overview

The UUT1H100MCL1GS is a 10 µF, 50 V aluminum electrolytic capacitor in surface mount radial can package manufactured by Nichicon. This component is rated for 2000 hours at 105°C and is designed for general purpose applications. The part is currently obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity.

Key Parameters

Parameter	Value
Capacitance	10 µF
Voltage Rating	50 V
Tolerance	±20%
Lifetime @ 105°C	2000 Hrs
Operating Temperature Range	-55°C to 105°C
Package Type	Radial, Can - SMD
Mounting Type	Surface Mount
Size / Dimension	0.248" Dia (6.30mm)
Height - Seated (Max)	0.240" (6.10mm)
Surface Mount Land Size	0.260" L x 0.260" W (6.60mm x 6.60mm)
Polarization	Polar
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the UUT1H100MCL1GS is determined by strict equivalence in the following parameters:

Capacitance: 10 µF (exact match required)
Voltage Rating: 50 V (minimum; higher ratings acceptable)
Tolerance: ±20% (exact match required)
Package Type: Radial, Can - SMD (exact match required)
Physical Dimensions: 0.248" Dia (6.30mm), Height ≤ 0.240" (6.10mm)
Surface Mount Land Size: 0.260" L x 0.260" W (6.60mm x 6.60mm)
Mounting Type: Surface Mount (exact match required)
Operating Temperature Range: -55°C to 105°C (minimum required)
Polarization: Polar (exact match required)

Substitute parts are grouped into three categories based on their relationship to the main part:

Direct Substitutes maintain identical electrical and mechanical specifications with active product status.

Upgrade Substitutes provide enhanced performance characteristics (higher ripple current ratings, improved impedance) while maintaining core electrical parameters.

Similar/Parametric Equivalents share core electrical specifications but may have minor variations in lifetime ratings or ripple current performance within acceptable operating ranges.

Parameter Comparison

Part Number	Manufacturer	Series	Capacitance	Voltage	Tolerance	Lifetime @ 105°C	Height (Max)	Product Status	Ripple Current @ 120 Hz	Ripple Current @ 100 kHz
UUT1H100MCL1GS	Nichicon	UUT	10 µF	50 V	±20%	2000 Hrs	0.240" (6.10mm)	Obsolete	30 mA	45 mA
UCD1H100MCL1GS	Nichicon	UCD	10 µF	50 V	±20%	2000 Hrs	0.240" (6.10mm)	Active	85 mA	170 mA
UCD1J100MCL1GS	Nichicon	UCD	10 µF	63 V	±20%	2000 Hrs	0.240" (6.10mm)	Active	40 mA	80 mA
UUA1H100MCL1GS	Nichicon	UUA	10 µF	50 V	±20%	3000 Hrs	0.228" (5.80mm)	Active	32 mA	—
UWT1H100MCL1GB	Nichicon	UWT	10 µF	50 V	±20%	1000 Hrs	0.213" (5.40mm)	Active	30 mA	45 mA
UWZ1H100MCL1GS	Nichicon	UWZ	10 µF	50 V	±20%	1000 Hrs	0.213" (5.40mm)	Active	30 mA	45 mA
UUD1H100MCL1GS	Nichicon	UUD	10 µF	50 V	±20%	2000 Hrs	0.240" (6.10mm)	Active	82.5 mA	165 mA
UWG1H100MCL1GB	Nichicon	UWG	10 µF	50 V	±20%	1000 Hrs	0.213" (5.40mm)	Active	35 mA	70 mA
UWD1H100MCL1GS	Nichicon	UWD	10 µF	50 V	±20%	2000 Hrs	0.240" (6.10mm)	Active	82.5 mA	165 mA
865060643005	Würth Elektronik	WCAP-ASLL	10 µF	50 V	±20%	2000 Hrs	0.217" (5.50mm)	Active	97.35 mA	165 mA
EEV106M050A9GAA	KEMET	EEV	10 µF	50 V	±20%	2000 Hrs	0.222" (5.65mm)	Active	49 mA	70 mA

Engineering Selection Recommendations

For Direct Replacement (Identical Specifications): UCD1H100MCL1GS is the primary direct substitute. It maintains 10 µF capacitance, 50 V rating, ±20% tolerance, 2000 hour lifetime at 105°C, and identical physical dimensions. This part is active and ROHS3 compliant. The UCD series includes AEC-Q200 automotive qualification, providing enhanced reliability for demanding applications.

For Enhanced Performance (Higher Ripple Current): UUD1H100MCL1GS and UWD1H100MCL1GS both provide 82.5 mA ripple current at 120 Hz and 165 mA at 100 kHz, compared to the original 30 mA and 45 mA respectively. Both maintain 2000 hour lifetime and identical physical dimensions. UUD1H100MCL1GS carries AEC-Q200 automotive qualification.

For Extended Lifetime: UUA1H100MCL1GS offers 3000 hour lifetime at 105°C while maintaining all other core specifications. Height is reduced to 0.228" (5.80mm), which may require PCB layout verification.

For Space-Constrained Applications: UWT1H100MCL1GB, UWZ1H100MCL1GS, and UWG1H100MCL1GB all feature reduced height of 0.213" (5.40mm). These parts maintain 10 µF, 50 V specifications but offer 1000 hour lifetime. UWZ1H100MCL1GS is specified for high temperature reflow applications.

For Multi-Manufacturer Sourcing: 865060643005 (Würth Elektronik WCAP-ASLL series) and EEV106M050A9GAA (KEMET EEV series) provide alternative manufacturer options. Both are active products with 2000 hour lifetime and ROHS3 compliance. Height variations are 0.217" (5.50mm) and 0.222" (5.65mm) respectively, requiring PCB verification.

Compliance Considerations: All recommended substitutes are ROHS3 compliant. UCD1H100MCL1GS and UUD1H100MCL1GS carry REACH Affected status, while other Nichicon alternatives and cross-manufacturer options are REACH Unaffected. Verify REACH compliance requirements for your application.

Frequently Asked Questions (FAQ)

Q: Can UCD1J100MCL1GS (63 V rating) be used in place of UUT1H100MCL1GS (50 V rating)? A: Yes. The 63 V rated part exceeds the 50 V requirement and is electrically compatible. Physical dimensions are identical. This substitution provides additional voltage margin. However, verify that your circuit design does not depend on the specific 50 V rating for other functional requirements.

Q: What is the difference between UCD1H100MCL1GS and UUD1H100MCL1GS? A: Both parts share identical electrical specifications (10 µF, 50 V, ±20%, 2000 Hrs @ 105°C) and physical dimensions. UUD1H100MCL1GS provides higher ripple current capability (82.5 mA @ 120 Hz vs. 85 mA @ 120 Hz for UCD1H100MCL1GS) and lower impedance (880 mOhms vs. 860 mOhms). UUD1H100MCL1GS carries AEC-Q200 automotive qualification and REACH Affected status.

Q: Are the shorter height alternatives (UWT, UWZ, UWG series) suitable for my design? A: Shorter height parts (0.213" vs. 0.240" original) are electrically equivalent but require PCB layout verification. Confirm that reduced height does not create clearance issues with adjacent components or create thermal management concerns. These parts are suitable for space-constrained designs.

Q: What does AEC-Q200 qualification mean? A: AEC-Q200 is an automotive electronics qualification standard. Parts carrying this rating (UCD1H100MCL1GS, UUD1H100MCL1GS, UWG1H100MCL1GB) have undergone enhanced reliability testing and are suitable for automotive and high-reliability applications.

Q: Can I use a part with higher lifetime rating (3000 Hrs) in place of the original (2000 Hrs)? A: Yes. UUA1H100MCL1GS provides 3000 hour lifetime at 105°C, exceeding the original specification. This substitution improves reliability margins. Height is reduced to 0.228" (5.80mm), requiring PCB verification.

Q: What is the significance of ripple current differences between substitute parts? A: Ripple current rating indicates the maximum AC current the capacitor can handle without exceeding temperature limits. Higher ripple current capability (UUD1H100MCL1GS, UWD1H100MCL1GS, 865060643005) provides better performance in high-frequency switching applications. Original part rated at 30 mA @ 120 Hz and 45 mA @ 10 kHz is suitable for general purpose applications with lower ripple current demands.

Q: Are Würth Elektronik and KEMET alternatives fully compatible? A: 865060643005 (Würth Elektronik) and EEV106M050A9GAA (KEMET) are electrically equivalent with identical capacitance, voltage, tolerance, and lifetime specifications. Physical dimensions vary slightly in height (0.217" and 0.222" respectively vs. 0.240" original). Verify PCB layout compatibility before substitution. Both are ROHS3 compliant and active products.

Q: What packaging format should I specify for production? A: Original part is Tape & Reel (TR). Most active substitutes maintain TR packaging. UUD1H100MCL1GS is available in Cut Tape (CT) & Digi-Reel® format. Verify packaging availability with your supplier for production volume requirements.

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