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 designed for 5000 hours of operation at 105°C. The part is currently active in production with inventory availability.

Equivalent and substitute parts are identified to support procurement flexibility, supply chain continuity, and design optimization across multiple manufacturers while maintaining electrical and mechanical compatibility within specified parameter tolerances.

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	-
Size / Dimension	0.492" Dia (12.50mm)	-
Height - Seated (Max)	0.571" (14.50mm)	-
Surface Mount Land Size	0.535" L x 0.535" W (13.60mm x 13.60mm)	-
Mounting Type	Surface Mount	-
Package / Case	Radial, Can - SMD	-
RoHS Status	ROHS3 Compliant	-
Ratings	AEC-Q200	-

Substitute Part Grouping Explanation

Substitute parts are classified based on strict electrical and mechanical parameter alignment:

Parametric Equivalent: Parts matching all critical electrical specifications (capacitance, voltage rating, tolerance, lifetime, temperature range) and mechanical dimensions (case size, mounting type, land size) with minor variations in ripple current performance.

Direct Manufacturer Equivalents: Parts from alternative manufacturers (Panasonic) with identical or superior electrical ratings, equivalent mechanical compatibility, and matching automotive certifications.

Similar Parts: Components from additional manufacturers (Chemi-Con, Vishay) meeting the same electrical specifications and mechanical envelope with acceptable parameter variations within engineering tolerances.

Substitution eligibility is determined by:

Capacitance: 330 µF (exact match required)
Voltage Rating: 50 V (exact match required)
Tolerance: ±20% (exact match required)
Operating Temperature: -55°C to 105°C (exact match required)
Lifetime: 5000 Hrs @ 105°C (exact match required)
Case Size: 0.492" Dia (12.50mm) (exact match required)
Mounting Type: Surface Mount, Radial Can (exact match required)
RoHS Compliance: ROHS3 (required)

Parameter Comparison

Parameter	UCD1H331MNJ1MS (Main)	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 - Rated	50 V	50 V	50 V	50 V	50 V	50 V
Tolerance	±20%	±20%	±20%	±20%	±20%	±20%
Lifetime @ Temp.	5000 Hrs @ 105°C	5000 Hrs @ 105°C	5000 Hrs @ 105°C	5000 Hrs @ 105°C	5000 Hrs @ 105°C	5000 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	-55°C ~ 105°C
Size / Dimension	0.492" Dia (12.50mm)	0.492" Dia (12.50mm)	0.492" Dia (12.50mm)	0.492" Dia (12.50mm)	0.492" Dia (12.50mm)	0.492" Dia (12.50mm)
Height - Seated (Max)	0.571" (14.50mm)	0.571" (14.50mm)	0.551" (14.00mm)	0.551" (14.00mm)	0.531" (14.60mm)	0.551" (14.00mm)
Surface Mount Land Size	0.535" L x 0.535" W (13.60mm x 13.60mm)	0.535" L x 0.535" W (13.60mm x 13.60mm)	0.531" L x 0.531" W (14.60mm x 14.60mm)	0.531" L x 0.531" W (14.60mm x 14.60mm)	0.512" L x 0.512" W (13.00mm x 13.00mm)	0.492" L x 0.492" W (12.50mm x 12.50mm)
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
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	120 mOhms	110 mOhms	130 mOhms
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active	Active	Active	Active
AEC-Q200 Rating	Yes	Yes	Yes	Yes	-	Yes

Engineering Selection Recommendations

UCD1H331MNL6GS (Nichicon - Parametric Equivalent): Maintains identical electrical specifications and mechanical dimensions to the main part. Suitable for direct substitution with equivalent performance characteristics. AEC-Q200 rated for automotive applications.

EEE-FK1H331AQ (Panasonic - Direct Equivalent): Meets all electrical requirements with superior ripple current performance (675 mA @ 120 Hz). Height is 0.551" (14.00mm) versus 0.571" (14.50mm) on main part, providing additional PCB clearance. AEC-Q200 rated. Moisture sensitivity level 1 (Unlimited) provides enhanced handling flexibility.

EEV-FK1H331Q (Panasonic - Direct Equivalent): Identical electrical specifications to EEE-FK1H331AQ with equivalent ripple current performance. Packaged in Cut Tape & Digi-Reel format. AEC-Q200 rated. Suitable for high-volume automated assembly.

EMVY500ARA331MKE0S (Chemi-Con - Similar Part): Meets core electrical specifications with lower ripple current performance (325 mA @ 120 Hz, 650 mA @ 100 kHz). Height is 0.531" (14.60mm), providing maximum PCB clearance. Land size is 0.512" L x 0.512" W (13.00mm x 13.00mm), requiring PCB layout verification. Not AEC-Q200 rated; suitable for general purpose applications only.

MAL215099112E3 (Vishay Beyschlag - Similar Part): Meets electrical specifications with ripple current of 690 mA @ 100 kHz. Height is 0.551" (14.00mm). Land size is 0.492" L x 0.492" W (12.50mm x 12.50mm), the smallest among substitutes. AEC-Q200 rated for automotive applications. Impedance is 130 mOhms, slightly higher than main part.

Frequently Asked Questions (FAQ)

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

A: Yes. Both parts are manufactured by Nichicon with identical capacitance (330 µF), voltage rating (50 V), tolerance (±20%), lifetime (5000 Hrs @ 105°C), operating temperature range (-55°C to 105°C), case size (0.492" Dia), and mounting type (Surface Mount). Both are AEC-Q200 rated. Minor differences in ripple current (400 mA vs 450 mA @ 120 Hz) are within acceptable engineering tolerances for most applications.

Q: What are the key differences between Nichicon and Panasonic substitutes?

A: Panasonic parts (EEE-FK1H331AQ and EEV-FK1H331Q) offer superior ripple current performance (675 mA @ 120 Hz versus 450 mA on the main part) and reduced height (0.551" versus 0.571"), providing additional PCB clearance. Both maintain AEC-Q200 automotive certification and identical electrical specifications. The primary difference between EEE-FK1H331AQ and EEV-FK1H331Q is packaging format (Tape & Reel versus Cut Tape & Digi-Reel).

Q: Is EMVY500ARA331MKE0S suitable for automotive applications?

A: EMVY500ARA331MKE0S meets the electrical specifications (330 µF, 50 V, ±20%, 5000 Hrs @ 105°C) but is not AEC-Q200 rated. It is classified as a general purpose component. Use in automotive applications requires design review and customer approval. The part offers the lowest height (0.531") and smallest land size (0.512" L x 0.512" W), which may provide PCB layout advantages in space-constrained designs.

Q: What PCB layout considerations apply when substituting MAL215099112E3?

A: MAL215099112E3 has the smallest land size (0.492" L x 0.492" W / 12.50mm x 12.50mm) compared to the main part (0.535" L x 0.535" W / 13.60mm x 13.60mm). Verify that existing PCB pads accommodate this smaller footprint. Height is 0.551" (14.00mm), which is 0.020" lower than the main part, providing improved clearance. AEC-Q200 rating confirms automotive suitability.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 Compliant status, meeting environmental and hazardous substance restrictions for electronic components.

Q: What is the difference between Tape & Reel and Cut Tape & Digi-Reel packaging?

A: Tape & Reel (TR) packaging is supplied on continuous reels suitable for high-speed automated pick-and-place assembly. Cut Tape (CT) & Digi-Reel packaging provides smaller quantities on cut tape segments, suitable for lower-volume production or prototype builds. Both formats contain identical components; packaging selection depends on production volume and assembly equipment compatibility.

Q: Can height differences between substitute parts affect circuit performance?

A: Height differences (ranging from 0.531" to 0.571") do not affect electrical performance. Verify mechanical clearance with adjacent components, connectors, or enclosure constraints. Shorter parts (EMVY500ARA331MKE0S at 0.531") provide additional clearance; taller parts (UCD1H331MNJ1MS and UCD1H331MNL6GS at 0.571") require verification of available vertical space.

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