ESMM451VSN331MA35S Equivalent & Substitute Parts

Part Overview

The ESMM451VSN331MA35S is a 330 µF, 450 V aluminum electrolytic capacitor manufactured by Chemi-Con in the SMM series. This radial, can-style snap-in capacitor is designed for general-purpose applications requiring high voltage energy storage and filtering. The part is currently active in production with RoHS compliance certification.

Equivalent and substitute parts are identified when component availability is limited, supply chain disruptions occur, or design optimization requires alternative manufacturers while maintaining electrical and mechanical compatibility within specified parameters.

Substiute Parts

ESMM451VSN331MA35S

Chemi-ConIn Stock: 1009ESMM451VSN331MA35S Datasheet

Current PartRFQ

450VXG330MEFCSN35X35

RubyconIn Stock: 656787450VXG330MEFCSN35X35 Datasheet

UpgradeRFQ

LQS2W331MELC35

NichiconIn Stock: 1000244LQS2W331MELC35 Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ESMM451VSN331MA35S is determined by strict equivalence in the following critical parameters:

Mandatory Matching Parameters:

• Capacitance: 330 µF (exact match required)
• Tolerance: ±20% (exact match required)
• Voltage - Rated: 450 V (exact match required)
• Lead Spacing: 0.394" (10.00 mm) (exact match required)
• Size / Dimension: 1.378" Dia (35.00 mm) (exact match required)
• Height - Seated (Max): 1.457" (37.00 mm) (exact match required)
• Mounting Type: Through Hole (exact match required)
• Package / Case: Radial, Can - Snap-In (exact match required)
• Polarization: Polar (exact match required)

Allowable Variations:

• Operating Temperature Range: May extend beyond -25°C ~ 85°C
• Lifetime @ Temp.: May exceed 3000 Hrs @ 85°C
• ESR (Equivalent Series Resistance): May differ if not specified
• Ripple Current ratings: May differ based on frequency
• RoHS Status: May upgrade from RoHS Compliant to ROHS3 Compliant
• Manufacturer: May differ while maintaining all electrical and mechanical specifications

The two identified substitute parts meet all mandatory matching parameters and are therefore electrically and mechanically interchangeable with the ESMM451VSN331MA35S in through-hole PCB applications.

Parameter Comparison

Engineering Selection Recommendations

ESMM451VSN331MA35S (Chemi-Con SMM Series)

This is the primary reference part. It is active in production with RoHS compliance. Selection is appropriate when Chemi-Con supply is available and the specified operating temperature range of -25°C ~ 85°C and 3000-hour lifetime at 85°C meet application requirements.

450VXG330MEFCSN35X35 (Rubycon VXG Series)

This substitute part is active in production with ROHS3 compliance. It provides extended operating temperature range (-25°C ~ 105°C) and extended lifetime (5000 Hrs @ 105°C) compared to the primary part. Selection is appropriate when higher temperature performance or longer operational life is required, or when Rubycon supply is preferred. All electrical and mechanical parameters are equivalent.

LQS2W331MELC35 (Nichicon LQS Series)

This substitute part is active in production with ROHS3 compliance. It provides extended operating temperature range (-25°C ~ 105°C) and extended lifetime (3000 Hrs @ 105°C) compared to the primary part. Selection is appropriate when higher temperature performance is required, or when Nichicon supply is preferred. All electrical and mechanical parameters are equivalent.

All three parts are suitable for direct substitution in through-hole PCB applications where the 330 µF, 450 V, snap-in radial can package is specified. Selection among these parts should be based on supply availability, cost, and application temperature requirements.

Frequently Asked Questions (FAQ)

Q: Can the 450VXG330MEFCSN35X35 directly replace the ESMM451VSN331MA35S on a PCB?

A: Yes. Both parts have identical lead spacing (0.394" / 10.00 mm), identical case dimensions (1.378" Dia / 35.00 mm), identical height (1.457" / 37.00 mm), and identical snap-in radial can package. They are mechanically and electrically interchangeable in through-hole applications.

Q: Can the LQS2W331MELC35 directly replace the ESMM451VSN331MA35S on a PCB?

A: Yes. Both parts have identical lead spacing (0.394" / 10.00 mm), identical case dimensions (1.378" Dia / 35.00 mm), identical height (1.457" / 37.00 mm), and identical snap-in radial can package. They are mechanically and electrically interchangeable in through-hole applications.

Q: What are the key differences between these three parts?

A: The primary differences are manufacturer, operating temperature range, and lifetime rating. The ESMM451VSN331MA35S operates to 85°C with 3000-hour lifetime at that temperature. The 450VXG330MEFCSN35X35 and LQS2W331MELC35 both operate to 105°C, providing extended temperature capability. The 450VXG330MEFCSN35X35 offers 5000-hour lifetime at 105°C, while the LQS2W331MELC35 offers 3000-hour lifetime at 105°C.

Q: Are there any differences in ripple current handling?

A: Yes. The ESMM451VSN331MA35S specifies 2.15 A @ 120 Hz and 3.0745 A @ 100 kHz. The 450VXG330MEFCSN35X35 specifies 1.65 A @ 120 Hz and 2.31 A @ 10 kHz. The LQS2W331MELC35 specifies 1.38 A @ 120 Hz and 1.9734 A @ 50 kHz. Applications with high ripple current requirements should verify compatibility with the selected substitute part.

Q: What is the significance of ROHS3 compliance on the substitute parts?

A: ROHS3 compliance indicates adherence to the Restriction of Hazardous Substances Directive 3, representing a more recent regulatory standard than RoHS Compliant. Both substitute parts meet this higher standard, making them suitable for applications requiring ROHS3 certification.

Q: Can I use these parts interchangeably in the same design?

A: Yes, for applications where the operating temperature range of -25°C ~ 85°C is sufficient. If your application requires operation above 85°C, the 450VXG330MEFCSN35X35 or LQS2W331MELC35 must be used. All three parts are mechanically identical and will fit the same PCB footprint.

Q: Which substitute part should I choose if both are available?

A: Selection depends on application requirements. If extended lifetime at elevated temperature is critical, the 450VXG330MEFCSN35X35 (5000 Hrs @ 105°C) is preferred. If cost or supply availability is the primary concern, either substitute is acceptable for applications operating within the specified temperature range.