ESMR401VSN331MP45S Equivalent & Substitute Parts

Part Overview

The ESMR401VSN331MP45S is a 330 µF, 400 V aluminum electrolytic capacitor manufactured by Chemi-Con in the SMR series. This radial, can-style snap-in capacitor is designed for general-purpose applications requiring through-hole mounting. The part is Active in product status with RoHS compliance and REACH unaffected classification. Substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when design requirements necessitate alternative manufacturer specifications.

Substiute Parts

ESMR401VSN331MP45S

Chemi-ConIn Stock: 948ESMR401VSN331MP45S Datasheet

Current PartRFQ

LGL2G331MELZ45

NichiconIn Stock: 274006LGL2G331MELZ45 Datasheet

DirectRFQ

LLG2G331MELZ45

NichiconIn Stock: 1162LLG2G331MELZ45 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ESMR401VSN331MP45S are qualified based on the following electrical and mechanical parameters:

Electrical Equivalence Criteria:

• Capacitance: 330 µF (exact match required)
• Voltage Rating: 400 V (exact match required)
• Tolerance: ±20% (exact match required)
• Polarization: Polar (exact match required)

Mechanical Compatibility Criteria:

• Package Type: Radial, Can - Snap-In (exact match required)
• Lead Spacing: 0.394" (10.00 mm) (exact match required)
• Diameter: 0.866" (22.00 mm) (exact match required)
• Mounting Type: Through Hole (exact match required)

Compliance Criteria:

• RoHS Status: Compliant or ROHS3 Compliant
• REACH Status: REACH Unaffected
• Product Status: Active

The substitute parts LGL2G331MELZ45 and LLG2G331MELZ45, both manufactured by Nichicon, meet all electrical and mechanical equivalence criteria. Variations in lifetime specifications and operating temperature ranges are noted but do not preclude substitution when application requirements are satisfied.

Parameter Comparison

Engineering Selection Recommendations

ESMR401VSN331MP45S (Primary Part - Chemi-Con SMR Series)

Use this part when Chemi-Con sourcing is specified or preferred. The part is Active in product status with RoHS compliance and REACH unaffected status. Ripple current ratings at both 120 Hz (2.15 A) and 50 kHz (3.0745 A) are provided. Operating temperature range is -25°C to 85°C with 2000 hours lifetime at 85°C.

LGL2G331MELZ45 (Nichicon LGL Series)

This substitute is suitable when extended operating temperature range is required. The part supports -25°C to 105°C operation with 2000 hours lifetime at 105°C. ROHS3 compliance provides enhanced regulatory alignment. Height is 1.850" (47.00 mm), which is 0.020" shorter than the primary part. Ripple current at 120 Hz is 1.07 A. This part is appropriate for applications requiring higher temperature performance.

LLG2G331MELZ45 (Nichicon LLG Series)

This substitute provides direct thermal equivalence to the primary part with -25°C to 85°C operating range and 2000 hours lifetime at 85°C. ROHS3 compliance is provided. Height is 1.850" (47.00 mm). Ripple current at 120 Hz is 1.7 A and at 50 kHz is 2.431 A. This part is appropriate for applications with thermal specifications matching the primary part.

All three parts are Active in product status, RoHS compliant, and REACH unaffected. Selection between substitute parts depends on application-specific requirements for operating temperature range and ripple current handling.

Frequently Asked Questions (FAQ)

Q: Can LGL2G331MELZ45 and LLG2G331MELZ45 be used interchangeably with ESMR401VSN331MP45S?

A: Both Nichicon parts meet the electrical and mechanical equivalence criteria for the ESMR401VSN331MP45S. The primary difference is operating temperature range. LGL2G331MELZ45 supports -25°C to 105°C, while LLG2G331MELZ45 supports -25°C to 85°C. Selection depends on application temperature requirements.

Q: What is the significance of the height difference between the primary part and substitutes?

A: The ESMR401VSN331MP45S has a maximum seated height of 1.870" (47.50 mm), while both Nichicon substitutes have 1.850" (47.00 mm). This 0.020" difference must be evaluated against PCB layout and clearance requirements. In most applications, this difference is accommodated within standard through-hole design tolerances.

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

A: Yes. The ESMR401VSN331MP45S provides ripple current ratings of 2.15 A @ 120 Hz and 3.0745 A @ 50 kHz. LGL2G331MELZ45 provides 1.07 A @ 120 Hz with no 50 kHz rating provided. LLG2G331MELZ45 provides 1.7 A @ 120 Hz and 2.431 A @ 50 kHz. Applications with high ripple current requirements must verify that the selected substitute meets the specified ripple current limits.

Q: Do all three parts have the same lead spacing and diameter?

A: Yes. All three parts have identical lead spacing of 0.394" (10.00 mm) and diameter of 0.866" (22.00 mm). PCB footprints are directly compatible.

Q: What compliance certifications apply to these parts?

A: The primary part ESMR401VSN331MP45S is RoHS Compliant and REACH Unaffected. Both Nichicon substitutes are ROHS3 Compliant and REACH Unaffected. ROHS3 represents an enhanced compliance standard. All parts are suitable for regulated applications.

Q: Which substitute should be selected for high-temperature applications?

A: LGL2G331MELZ45 is specified for applications requiring extended operating temperature range up to 105°C with 2000 hours lifetime at that temperature. This part is appropriate when thermal performance beyond 85°C is required.

Q: Are these parts suitable for general-purpose applications?

A: Yes. All three parts are classified for general-purpose applications. The 330 µF capacitance, 400 V rating, and through-hole snap-in package are standard for general industrial and commercial power supply filtering and energy storage applications.