UCD1H331MNJ1MS Equivalent & Substitute Parts

Part Overview

The UCD1H331MNJ1MS is a 330 µF, 50 V aluminum electrolytic capacitor manufactured by Nichicon in surface mount radial can package. This component is rated for automotive applications with AEC-Q200 compliance and operates across -55°C to 105°C with a 5000-hour lifetime at 105°C. The part is currently active in production with 703 units in stock.

Substitute parts are necessary when the original manufacturer part becomes unavailable, when alternative packaging formats are required for production efficiency, or when design requirements permit cross-manufacturer compatibility within specified electrical and mechanical parameters.

Key Parameters

Parameter	Value	Unit
Capacitance	330	µF
Voltage - Rated	50	V
Tolerance	±20%	-
Lifetime @ Temperature	5000 Hrs @ 105°C	-
Operating Temperature Range	-55°C to 105°C	-
Polarization	Polar	-
Mounting Type	Surface Mount	-
Package / Case	Radial, Can - SMD	-
Size / Dimension	0.492" Dia (12.50mm)	-
RoHS Status	ROHS3 Compliant	-

Substitute Part Grouping Explanation

Substitution eligibility for the UCD1H331MNJ1MS is determined by strict equivalence across the following parameters:

Critical Electrical Parameters (Must Match):

Capacitance: 330 µF
Voltage Rating: 50 V
Tolerance: ±20%
Polarization: Polar
Lifetime: 5000 Hrs @ 105°C
Operating Temperature Range: -55°C to 105°C

Critical Mechanical Parameters (Must Match):

Mounting Type: Surface Mount
Package / Case: Radial, Can - SMD
Diameter: 0.492" (12.50mm)

Allowable Variations:

Height: Seated height may vary within physical PCB assembly constraints
Surface Mount Land Size: Minor variations permitted if within standard SMD footprint tolerance
Packaging Format: Cut Tape (CT), Tape & Reel (TR), or Digi-Reel® formats are interchangeable for component selection
Ripple Current Ratings: Variations permitted if equal to or greater than original specification
Impedance: Variations permitted if equal to or lower than original specification

Compliance Requirements:

RoHS3 Compliance: Required
AEC-Q200 Automotive Rating: Preferred for automotive applications

The following parts meet these substitution criteria:

UCD1H331MNL6GS (Nichicon) - Parametric equivalent, same series
EEE-FK1H331AQ (Panasonic) - Direct manufacturer equivalent
EEV-FK1H331Q (Panasonic) - Direct manufacturer equivalent
EMVY500ARA331MKE0S (Chemi-Con) - Similar specification equivalent
MAL215099112E3 (Vishay Beyschlag) - Similar specification equivalent

Parameter Comparison

Parameter	UCD1H331MNJ1MS	UCD1H331MNL6GS	EEE-FK1H331AQ	EEV-FK1H331Q	EMVY500ARA331MKE0S	MAL215099112E3
Manufacturer	Nichicon	Nichicon	Panasonic	Panasonic	Chemi-Con	Vishay Beyschlag
Capacitance	330 µF	330 µF	330 µF	330 µF	330 µF	330 µF
Voltage Rating	50 V	50 V	50 V	50 V	50 V	50 V
Tolerance	±20%	±20%	±20%	±20%	±20%	±20%
Lifetime @ 105°C	5000 Hrs	5000 Hrs	5000 Hrs	5000 Hrs	5000 Hrs	5000 Hrs
Operating Temperature	-55°C ~ 105°C	-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	Polar
Mounting Type	Surface Mount	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	Radial, Can - SMD
Size / Diameter	0.492" (12.50mm)	0.492" (12.50mm)	0.492" (12.50mm)	0.492" (12.50mm)	0.492" (12.50mm)	0.492" (12.50mm)
Height - Seated (Max)	0.492" (12.50mm)	0.571" (14.50mm)	0.551" (14.00mm)	0.551" (14.00mm)	0.531" (13.50mm)	0.551" (14.00mm)
Ripple Current @ 120 Hz	450 mA	400 mA	675 mA	675 mA	325 mA	-
Ripple Current @ 100 kHz	900 mA	800 mA	900 mA	900 mA	650 mA	690 mA
Impedance	-	-	120 mOhms	120 mOhms	110 mOhms	130 mOhms
AEC-Q200 Rating	Yes	Yes	Yes	Yes	-	Yes
RoHS3 Compliant	Yes	Yes	Yes	Yes	Yes	Yes
Packaging Format	-	Tape & Reel (TR)	Tape & Reel (TR)	Cut Tape (CT) & Digi-Reel®	Cut Tape (CT) & Digi-Reel®	Cut Tape (CT) & Digi-Reel®
Inventory Status	703 Pcs	5175 Pcs	12768 Pcs	1968 Pcs	827800 Pcs	2700 Pcs

Engineering Selection Recommendations

Primary Substitutes (Highest Compatibility):

UCD1H331MNL6GS - Nichicon same-series equivalent. Identical electrical specifications and AEC-Q200 automotive rating. Height variation of 2.0mm (14.50mm vs. 12.50mm) requires PCB layout verification. Tape & Reel packaging suitable for high-volume production. Recommended when Nichicon series continuity is required.

EEE-FK1H331AQ - Panasonic direct equivalent with AEC-Q200 compliance. Superior ripple current performance (675 mA @ 120 Hz vs. 450 mA). Height of 14.00mm requires PCB clearance verification. Tape & Reel packaging. Recommended for automotive applications requiring enhanced ripple current handling.

EEV-FK1H331Q - Panasonic equivalent in Cut Tape & Digi-Reel® format. Identical electrical performance to EEE-FK1H331AQ. Suitable for lower-volume production or mixed-component procurement. AEC-Q200 rated for automotive use.

Secondary Substitutes (Acceptable with Application Review):

EMVY500ARA331MKE0S - Chemi-Con Alchip™ series with highest inventory availability (827,800 units). Meets all critical electrical parameters. Lacks AEC-Q200 automotive rating; suitable for general-purpose applications only. Lower ripple current specifications (325 mA @ 120 Hz, 650 mA @ 100 kHz) require circuit analysis for non-automotive designs. Compact height (13.50mm) offers PCB space advantage.

MAL215099112E3 - Vishay Beyschlag 150 CRZ series with AEC-Q200 compliance. Meets automotive requirements. Impedance specification (130 mOhms) is within acceptable range. Compact land size (12.50mm x 12.50mm) matches original footprint precisely. Recommended for automotive applications when Vishay component qualification is required.

Compliance Summary:

All substitute parts maintain ROHS3 compliance
EEE-FK1H331AQ, EEV-FK1H331Q, UCD1H331MNL6GS, and MAL215099112E3 retain AEC-Q200 automotive qualification
EMVY500ARA331MKE0S is suitable for general-purpose applications only

Frequently Asked Questions (FAQ)

Q: Can UCD1H331MNL6GS be used as a direct replacement for UCD1H331MNJ1MS?

A: Yes, UCD1H331MNL6GS is a parametric equivalent within the same Nichicon UCD series. All electrical specifications are identical. The seated height difference (14.50mm vs. 12.50mm) requires verification that PCB assembly clearance accommodates the additional 2.0mm height. Both parts carry AEC-Q200 automotive rating and ROHS3 compliance.

Q: What is the difference between EEE-FK1H331AQ and EEV-FK1H331Q?

A: Both are Panasonic FK series equivalents with identical electrical specifications and physical dimensions. The primary difference is packaging format: EEE-FK1H331AQ is supplied in Tape & Reel (TR) format for high-volume automated assembly, while EEV-FK1H331Q is supplied in Cut Tape (CT) & Digi-Reel® format for lower-volume or mixed-component procurement. Both are AEC-Q200 rated for automotive applications.

Q: Why does EMVY500ARA331MKE0S have lower ripple current ratings?

A: EMVY500ARA331MKE0S is specified for general-purpose applications rather than automotive use. The lower ripple current ratings (325 mA @ 120 Hz, 650 mA @ 100 kHz) reflect design optimization for standard industrial applications. This part lacks AEC-Q200 automotive certification. Use only in non-automotive circuits where ripple current requirements do not exceed specified values.

Q: Are all substitute parts compatible with the same PCB footprint?

A: All substitute parts share the same diameter (12.50mm) and surface mount land size within acceptable tolerance ranges. However, seated height varies: UCD1H331MNJ1MS and UCD1H331MNL6GS differ by 2.0mm, while EEE-FK1H331AQ, EEV-FK1H331Q, and MAL215099112E3 are 1.5mm taller. EMVY500ARA331MKE0S is 1.0mm taller. Verify PCB assembly clearance for components with height greater than 12.50mm.

Q: Which substitute is recommended for automotive applications?

A: For automotive applications, select from parts with AEC-Q200 certification: UCD1H331MNL6GS, EEE-FK1H331AQ, EEV-FK1H331Q, or MAL215099112E3. EEE-FK1H331AQ and EEV-FK1H331Q offer superior ripple current performance. MAL215099112E3 provides the most compact footprint match. EMVY500ARA331MKE0S is not suitable for automotive use due to lack of AEC-Q200 rating.

Q: What is the impact of impedance differences between substitute parts?

A: Impedance values provided (110–130 mOhms) represent minor variations within acceptable operating ranges for this capacitance and voltage class. Lower impedance (110 mOhms in EMVY500ARA331MKE0S) indicates slightly better high-frequency performance. Higher impedance (130 mOhms in MAL215099112E3) remains within acceptable limits. These variations do not affect functional compatibility in standard circuit applications.

Q: Can packaging format (Tape & Reel vs. Cut Tape) affect component performance?

A: No. Packaging format affects only procurement and assembly logistics, not electrical or mechanical performance. Tape & Reel (TR) format is optimized for high-volume automated pick-and-place assembly. Cut Tape (CT) & Digi-Reel® format accommodates lower-volume production or mixed-component orders. Component specifications and performance are identical regardless of packaging format.

Q: What inventory considerations apply when selecting a substitute?

A: EMVY500ARA331MKE0S offers the highest inventory availability (827,800 units), suitable for large-volume production. UCD1H331MNL6GS (5,175 units) and EEE-FK1H331AQ (12,768 units) provide adequate stock for standard production runs. EEV-FK1H331Q (1,968 units) and MAL215099112E3 (2,700 units) are suitable for smaller orders. Original UCD1H331MNJ1MS stock (703 units) is limited.

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