EKMM201VSN331MN35S Equivalent & Substitute Parts

Part Overview

The EKMM201VSN331MN35S is a 330 µF, 200 V aluminum electrolytic capacitor manufactured by Chemi-Con in the KMM series. This radial, snap-in can capacitor is designed for general-purpose applications requiring stable capacitance and extended operational life. The component is currently in active production status with 767 units in stock.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the allowed parameter tolerances for this product category. Substitution becomes necessary due to supply chain availability, lead time requirements, or inventory optimization across qualified manufacturer sources.

Key Parameters

Parameter	Value	Unit	Substitution Relevance
Capacitance	330	µF	Critical - must match exactly
Voltage - Rated	200	V	Critical - minimum acceptable rating
Tolerance	±20%	%	Critical - must match or be tighter
Lead Spacing	10.00	mm	Critical - PCB footprint compatibility
Size / Dimension	20.00	mm Dia	Critical - physical fit
Height - Seated (Max)	37.00	mm	Critical - clearance requirement
Package / Case	Radial, Can - Snap-In	-	Critical - mounting type
Mounting Type	Through Hole	-	Critical - assembly compatibility
Lifetime @ Temp.	3000	Hrs @ 105°C	Important - reliability specification
Operating Temperature	-25°C ~ 105°C	-	Important - thermal range
Ripple Current @ Low Frequency	1.2	A @ 120 Hz	Important - current handling
Ripple Current @ High Frequency	1.8	A @ 50 kHz	Important - current handling
RoHS Status	RoHS Compliant	-	Important - regulatory compliance

Substitute Part Grouping Explanation

Substitution logic for the EKMM201VSN331MN35S is based on strict equivalence of the following critical parameters:

Electrical Parameters (Must Match or Exceed):

Capacitance: 330 µF (exact match required)
Tolerance: ±20% (substitute tolerance must be equal or tighter)
Voltage Rating: Substitute must be rated at 200 V or higher
Ripple Current: Substitute must support 1.2 A @ 120 Hz and 1.8 A @ 50 kHz minimum

Mechanical Parameters (Must Match Exactly):

Lead Spacing: 10.00 mm (0.394")
Diameter: 20.00 mm (0.787")
Height (Seated Max): 37.00 mm (1.457")
Package Type: Radial, Can - Snap-In
Mounting Type: Through Hole

Reliability & Compliance Parameters:

Lifetime: 3000 Hrs @ 105°C minimum
Operating Temperature Range: Must encompass -25°C to 105°C
RoHS Status: RoHS Compliant or ROHS3 Compliant

The substitute part LGN2E331MELY35 meets all critical parameters with the following distinctions: higher voltage rating (250 V), extended lower temperature limit (-40°C), and ROHS3 compliance status.

Parameter Comparison

Parameter	EKMM201VSN331MN35S (Chemi-Con)	LGN2E331MELY35 (Nichicon)	Match Status
Capacitance	330 µF	330 µF	Exact Match
Tolerance	±20%	±20%	Exact Match
Voltage - Rated	200 V	250 V	Substitute Exceeds
Lead Spacing	10.00 mm	10.00 mm	Exact Match
Size / Dimension	20.00 mm Dia	20.00 mm Dia	Exact Match
Height - Seated (Max)	37.00 mm	37.00 mm	Exact Match
Package / Case	Radial, Can - Snap-In	Radial, Can - Snap-In	Exact Match
Mounting Type	Through Hole	Through Hole	Exact Match
Lifetime @ Temp.	3000 Hrs @ 105°C	3000 Hrs @ 105°C	Exact Match
Operating Temperature	-25°C ~ 105°C	-40°C ~ 105°C	Substitute Exceeds
Ripple Current @ Low Frequency	1.2 A @ 120 Hz	1.2 A @ 120 Hz	Exact Match
Ripple Current @ High Frequency	1.8 A @ 50 kHz	1.8 A @ 50 kHz	Exact Match
RoHS Status	RoHS Compliant	ROHS3 Compliant	Both Compliant

Engineering Selection Recommendations

Primary Part: EKMM201VSN331MN35S (Chemi-Con KMM Series)

Selection criteria: Use when Chemi-Con supply chain is preferred, RoHS Compliant status is specified, or when the 200 V rating is the exact requirement without margin.

Current inventory: 767 units in stock.

Product status: Active.

Substitute Part: LGN2E331MELY35 (Nichicon LGN Series)

Selection criteria: Use when higher voltage margin (250 V vs. 200 V) is beneficial for circuit reliability, extended lower temperature operation (-40°C vs. -25°C) is required, or when Nichicon supply chain offers better lead time or cost position.

Current inventory: 1,063 units in stock.

Product status: Active.

Compliance: ROHS3 Compliant status indicates compliance with the most current RoHS directive requirements.

Both parts are active products with confirmed inventory availability. Selection between them is based on supply chain strategy, voltage margin requirements, and temperature range specifications rather than functional incompatibility.

Frequently Asked Questions (FAQ)

Q: Can LGN2E331MELY35 be used as a direct replacement for EKMM201VSN331MN35S?

A: Yes. Both parts share identical capacitance (330 µF), tolerance (±20%), lead spacing (10.00 mm), physical dimensions (20.00 mm diameter, 37.00 mm height), package type (Radial, Can - Snap-In), mounting method (Through Hole), and ripple current ratings. The substitute part exceeds the original in voltage rating (250 V vs. 200 V) and operating temperature range (-40°C to 105°C vs. -25°C to 105°C), making it functionally compatible in all applications where the original part is specified.

Q: What is the significance of the higher 250 V rating on the substitute part?

A: The LGN2E331MELY35 is rated for 250 V, compared to the 200 V rating of the EKMM201VSN331MN35S. In circuit applications operating at or below 200 V, the higher rating provides additional voltage margin and typically results in improved reliability and longer operational life. The substitute part can be used in any circuit designed for 200 V operation without modification.

Q: Are there any differences in ESR (Equivalent Series Resistance) between these parts?

A: The EKMM201VSN331MN35S specifies ESR of 753 mOhm @ 120 Hz. The LGN2E331MELY35 does not provide ESR specification in the available data. When ESR is a critical design parameter, the original part specification should be verified with the manufacturer before substitution.

Q: Do both parts meet current RoHS requirements?

A: Yes. The EKMM201VSN331MN35S is RoHS Compliant. The LGN2E331MELY35 is ROHS3 Compliant, indicating compliance with the most recent RoHS directive. Both parts are suitable for applications requiring RoHS compliance.

Q: What is the difference between the packaging designations "Bulk" and the original part packaging?

A: The LGN2E331MELY35 is listed with "Bulk" packaging, indicating standard reel or tape packaging for automated assembly. The original part packaging designation is not specified in the provided data. Both parts use identical snap-in can package types and are compatible with through-hole assembly processes. Packaging designation refers to the distribution format, not the component package itself.

Q: Can these parts be used interchangeably in existing PCB designs?

A: Yes. Both parts have identical lead spacing (10.00 mm), diameter (20.00 mm), and height (37.00 mm). PCB footprints designed for the EKMM201VSN331MN35S will accommodate the LGN2E331MELY35 without modification. Snap-in mounting compatibility is identical between both parts.

Q: What is the operational temperature range difference, and does it matter?

A: The EKMM201VSN331MN35S operates from -25°C to 105°C. The LGN2E331MELY35 operates from -40°C to 105°C. The substitute part extends the lower temperature limit by 15°C. For applications operating above -25°C, both parts are equivalent. For applications requiring operation below -25°C, only the LGN2E331MELY35 is suitable.

Q: Are ripple current ratings identical?

A: Yes. Both parts are rated for 1.2 A @ 120 Hz (low frequency) and 1.8 A @ 50 kHz (high frequency). Ripple current handling capability is equivalent between the two parts.

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