Equivalent & Substitute Parts for UCM1H331MNL1GS

Part Overview

The UCM1H331MNL1GS is a 330 µF, 50 V aluminum electrolytic capacitor manufactured by Nichicon in the UCM series. This surface mount radial can capacitor is designed for automotive applications and meets AEC-Q200 qualification standards. The part is actively produced and widely used in power supply filtering, energy storage, and signal coupling circuits requiring stable performance across extended temperature ranges.

Substitute parts are identified when equivalent electrical performance, mechanical compatibility, and reliability certifications can be maintained across different manufacturers while preserving circuit functionality and design margins.

Key Parameters

Parameter	Value	Specification Basis
Capacitance	330 µF	Core electrical requirement
Voltage Rating	50 V	Maximum operating voltage
Tolerance	±20%	Capacitance accuracy class
Lifetime @ Temperature	2000 Hrs @ 105°C	Reliability specification
Operating Temperature Range	-55°C ~ 105°C	Environmental operating limits
Package / Case	Radial, Can - SMD	Physical form factor
Size / Dimension	0.394" Dia (10.00mm)	PCB footprint compatibility
Height - Seated (Max)	0.413" (10.50mm)	Vertical clearance requirement
Surface Mount Land Size	0.406" L x 0.406" W (10.30mm x 10.30mm)	Pad layout compatibility
Mounting Type	Surface Mount	Assembly process compatibility
Polarization	Polar	Polarity-sensitive application requirement
AEC-Q200 Rating	Yes	Automotive qualification
RoHS Status	ROHS3 Compliant	Environmental compliance
Moisture Sensitivity Level (MSL)	1 (Unlimited)	Handling and storage requirements

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict equivalence across the following critical parameters:

Electrical Equivalence:

Capacitance: 330 µF (exact match required)
Voltage Rating: 50 V (exact match required)
Tolerance: ±20% (exact match required)
Lifetime @ Temperature: 2000 Hrs @ 105°C (exact match required)
Operating Temperature Range: -55°C ~ 105°C (exact match required)

Mechanical Compatibility:

Package Type: Radial, Can - SMD (exact match required)
Size / Dimension: 0.394" Dia (10.00mm) (exact match required)
Height - Seated (Max): 0.413" (10.50mm) or 0.406" (10.30mm) (within tolerance)
Surface Mount Land Size: 0.406" L x 0.406" W (10.30mm x 10.30mm) (exact match required)
Mounting Type: Surface Mount (exact match required)

Compliance & Certification:

AEC-Q200 Rating: Required for automotive applications
RoHS Status: ROHS3 Compliant (exact match required)
Moisture Sensitivity Level: 1 (Unlimited) (exact match required)
Polarization: Polar (exact match required)

All four substitute parts meet these criteria and are classified as parametric equivalents.

Parameter Comparison

Parameter	UCM1H331MNL1GS (Nichicon)	50TPV330M10X10.5 (Rubycon)	EEE-FT1H331AL (Panasonic)	EEE-FT1H331AP (Panasonic)	EMZR500ARA331MJA0G (Chemi-Con)
Capacitance	330 µF	330 µF	330 µF	330 µF	330 µF
Voltage - Rated	50 V	50 V	50 V	50 V	50 V
Tolerance	±20%	±20%	±20%	±20%	±20%
Lifetime @ Temp.	2000 Hrs @ 105°C	2000 Hrs @ 105°C	2000 Hrs @ 105°C	2000 Hrs @ 105°C	2000 Hrs @ 105°C
Operating Temperature	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C
Polarization	Polar	Polar	Polar	Polar	Polar
Size / Dimension	0.394" Dia (10.00mm)	0.394" Dia (10.00mm)	0.394" Dia (10.00mm)	0.394" Dia (10.00mm)	0.394" Dia (10.00mm)
Height - Seated (Max)	0.413" (10.50mm)	0.413" (10.50mm)	0.413" (10.50mm)	0.413" (10.50mm)	0.406" (10.30mm)
Surface Mount Land Size	0.406" L x 0.406" W (10.30mm x 10.30mm)	0.406" L x 0.406" W (10.30mm x 10.30mm)	0.406" L x 0.406" W (10.30mm x 10.30mm)	0.406" L x 0.406" W (10.30mm x 10.30mm)	0.406" L x 0.406" W (10.30mm x 10.30mm)
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	Radial, Can - SMD	Radial, Can - SMD	Radial, Can - SMD	Radial, Can - SMD	Radial, Can - SMD
AEC-Q200 Rating	Yes	Yes	Yes	Yes	Yes
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Ripple Current @ 120 Hz	450 mA	Not specified	585 mA	585 mA	450 mA
Ripple Current @ 100 kHz	900 mA	Not specified	900 mA	900 mA	900 mA
ESR @ 100 kHz	120 mOhms	Not specified	120 mOhms	120 mOhms	120 mOhms
Packaging	Cut Tape (CT) & Digi-Reel®	Tape & Reel (TR)	Tape & Reel (TR)	Cut Tape (CT) & Digi-Reel®	Cut Tape (CT) & Digi-Reel®
Product Status	Active	Active	Active	Active	Active

Engineering Selection Recommendations

All four substitute parts are active products with full AEC-Q200 automotive qualification and ROHS3 compliance, making them suitable for direct substitution in automotive applications requiring 330 µF, 50 V aluminum electrolytic capacitors.

Nichicon UCM1H331MNL1GS: Primary reference part. Specified ripple current ratings and impedance characteristics are documented. Available in Cut Tape & Digi-Reel® packaging.

Rubycon 50TPV330M10X10.5: Parametric equivalent with identical electrical and mechanical specifications. Available in Tape & Reel packaging. Ripple current and ESR specifications not provided in documentation.

Panasonic EEE-FT1H331AL: Parametric equivalent with documented ESR of 120 mOhms @ 100 kHz and ripple current of 585 mA @ 120 Hz. Halogen-free series designation. Available in Tape & Reel packaging.

Panasonic EEE-FT1H331AP: Parametric equivalent with documented ESR of 120 mOhms @ 100 kHz and ripple current of 585 mA @ 120 Hz. Available in Cut Tape & Digi-Reel® packaging, matching the primary part's packaging format.

Chemi-Con EMZR500ARA331MJA0G: Parametric equivalent with documented ESR of 120 mOhms @ 100 kHz. Seated height is 0.406" (10.30mm), which is 0.007" lower than other parts but remains within acceptable mechanical tolerance for standard PCB layouts. Alchip™-MZR series designation. Available in Cut Tape & Digi-Reel® packaging. Highest inventory availability.

Frequently Asked Questions (FAQ)

Q: Can these substitute parts be used interchangeably with the UCM1H331MNL1GS?

A: Yes. All four substitute parts meet identical electrical specifications (330 µF, 50 V, ±20% tolerance, 2000 Hrs @ 105°C), mechanical dimensions (10.00mm diameter, 10.30mm x 10.30mm land size), and automotive compliance requirements (AEC-Q200, ROHS3). Direct substitution is supported without circuit redesign.

Q: What is the significance of the height difference in the Chemi-Con EMZR500ARA331MJA0G?

A: The Chemi-Con part has a maximum seated height of 0.406" (10.30mm) compared to 0.413" (10.50mm) for other parts. This 0.007" difference is within standard PCB assembly tolerances and does not affect compatibility with standard surface mount land patterns or vertical clearance requirements in typical automotive applications.

Q: Are there differences in ripple current handling between these parts?

A: The Panasonic EEE-FT1H331AL and EEE-FT1H331AP specify 585 mA @ 120 Hz ripple current, compared to 450 mA @ 120 Hz for the Nichicon and Chemi-Con parts. All parts specify 900 mA @ 100 kHz. For applications with low-frequency ripple current requirements exceeding 450 mA, the Panasonic options provide additional margin.

Q: What packaging options are available?

A: Nichicon UCM1H331MNL1GS, Panasonic EEE-FT1H331AP, and Chemi-Con EMZR500ARA331MJA0G are supplied in Cut Tape & Digi-Reel® packaging. Rubycon 50TPV330M10X10.5 and Panasonic EEE-FT1H331AL are supplied in Tape & Reel packaging. Packaging selection depends on assembly line equipment and volume requirements.

Q: Are all parts halogen-free?

A: The Panasonic EEE-FT1H331AL is explicitly designated as halogen-free. Halogen-free status for other parts is not specified in the provided documentation.

Q: What is the ESR specification for the Rubycon part?

A: ESR is not specified in the available documentation for the Rubycon 50TPV330M10X10.5. The Nichicon, Panasonic, and Chemi-Con parts all specify 120 mOhms @ 100 kHz.

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