Equivalent & Substitute Parts for 380LQ331M420K022

Part Overview

The 380LQ331M420K022 is a 330 µF, 420 V aluminum electrolytic capacitor manufactured by Cornell Dubilier Electronics (CDE) in a radial, can snap-in package. This component is classified as Active and is designed for general-purpose applications requiring high-voltage energy storage and filtering. The part operates across a temperature range of -25°C to 85°C with a rated lifetime of 2000 hours at 85°C.

Equivalent and substitute parts are identified based on matching or exceeding the electrical and mechanical specifications of the original component, including capacitance value, voltage rating, package type, lead spacing, and physical dimensions. Substitute parts may offer improved performance characteristics such as higher voltage ratings, extended operating temperatures, or longer operational lifetimes.

Substiute Parts

380LQ331M420K022

Cornell Dubilier Electronics (CDE)In Stock: 870380LQ331M420K022 Datasheet

Current PartRFQ

ESMR421VSN331MR30S

Chemi-ConIn Stock: 1150ESMR421VSN331MR30S Datasheet

DirectRFQ

450MXK330MEFCFA30X30

RubyconIn Stock: 273982450MXK330MEFCFA30X30 Datasheet

UpgradeRFQ

ESMR451VSN331MR30S

Chemi-ConIn Stock: 1725ESMR451VSN331MR30S Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution logic for the 380LQ331M420K022 is based on the following critical parameters:

Primary Matching Criteria:

• Capacitance: 330 µF (exact match required)
• Tolerance: ±20% (exact match required)
• Package Type: Radial, Can - Snap-In (exact match required)
• Lead Spacing: 0.394" (10.00mm) (exact match required)
• Physical Diameter: 1.181" (30.00mm) (exact match required)
• Mounting Type: Through Hole (exact match required)
• Polarization: Polar (exact match required)

Secondary Compatibility Parameters:

• Voltage Rating: 420 V minimum (equal or higher voltage ratings are acceptable)
• Operating Temperature: -25°C minimum to 85°C maximum (equal or wider range acceptable)
• Lifetime: 2000 Hrs @ 85°C minimum (equal or longer lifetime acceptable)

Substitute parts are classified into two categories:

Direct Equivalents: Parts meeting all primary criteria with identical or equivalent voltage ratings (420 V).

Upgrade Substitutes: Parts meeting all primary criteria with higher voltage ratings (450 V) or extended operating temperature ranges and lifetimes, providing enhanced performance margins.

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalent Selection:

ESMR421VSN331MR30S (Chemi-Con) is a direct equivalent to the 380LQ331M420K022. Both components share identical electrical specifications (330 µF, 420 V, ±20% tolerance) and mechanical compatibility (radial snap-in package, 10.00mm lead spacing, 30.00mm diameter). The ESMR421VSN331MR30S is RoHS Compliant and maintains the same 2000-hour lifetime rating at 85°C. The maximum seated height differs by 0.020" (0.50mm), which remains within typical PCB layout tolerances for through-hole snap-in applications.

Upgrade Substitute Selection:

450MXK330MEFCFA30X30 (Rubycon) and ESMR451VSN331MR30S (Chemi-Con) are upgrade substitutes offering higher voltage ratings of 450 V. Both maintain identical capacitance, tolerance, and package specifications.

The 450MXK330MEFCFA30X30 provides the highest performance margin with an extended operating temperature range of -25°C to 105°C and a lifetime rating of 3000 hours at 105°C. This component is ROHS3 Compliant and suitable for applications requiring enhanced thermal stability and extended service life.

The ESMR451VSN331MR30S maintains the same operating temperature range as the original part (-25°C to 85°C) with a 2000-hour lifetime at 85°C, while providing the voltage upgrade to 450 V. This component is RoHS Compliant.

All substitute parts are classified as Active products with confirmed inventory availability.

Frequently Asked Questions (FAQ)

Q: Can ESMR421VSN331MR30S be used as a direct replacement for 380LQ331M420K022?

A: Yes. ESMR421VSN331MR30S meets all primary matching criteria: 330 µF capacitance, ±20% tolerance, 420 V voltage rating, radial snap-in package, 10.00mm lead spacing, and 30.00mm diameter. Both components are rated for 2000 hours at 85°C and operate across -25°C to 85°C. The maximum seated height difference of 0.50mm is within standard PCB layout tolerances for through-hole applications.

Q: What is the difference between direct equivalents and upgrade substitutes?

A: Direct equivalents match all electrical and mechanical specifications of the original part, including voltage rating. Upgrade substitutes maintain identical capacitance, tolerance, and package specifications but offer higher voltage ratings (450 V versus 420 V) or extended operating temperature ranges and lifetimes. Upgrade substitutes provide additional performance margin and are suitable for applications where enhanced reliability is required.

Q: Can 450MXK330MEFCFA30X30 be used in place of 380LQ331M420K022?

A: Yes. 450MXK330MEFCFA30X30 is mechanically and electrically compatible. It maintains the same 330 µF capacitance, ±20% tolerance, radial snap-in package, 10.00mm lead spacing, and 30.00mm diameter. The higher 450 V rating provides additional voltage margin. The extended operating temperature range (-25°C to 105°C) and longer lifetime (3000 hours at 105°C) make this an upgrade substitute suitable for demanding applications.

Q: Are there height differences between substitute parts?

A: Yes. The original 380LQ331M420K022 has a maximum seated height of 1.260" (32.00mm). ESMR421VSN331MR30S and ESMR451VSN331MR30S have a maximum seated height of 1.280" (32.50mm), a difference of 0.020" (0.50mm). The 450MXK330MEFCFA30X30 matches the original height of 1.260" (32.00mm). These height variations are within typical PCB design tolerances for through-hole snap-in capacitor applications.

Q: Do all substitute parts meet RoHS compliance requirements?

A: Yes. The original 380LQ331M420K022 is ROHS3 Compliant. ESMR421VSN331MR30S and ESMR451VSN331MR30S are RoHS Compliant. The 450MXK330MEFCFA30X30 is ROHS3 Compliant. All parts meet applicable RoHS standards for electronic component manufacturing.

Q: What is the ripple current rating for each substitute?

A: Ripple current ratings vary by manufacturer and design. At 120 Hz, the original 380LQ331M420K022 is rated for 1.95 A. ESMR421VSN331MR30S is rated for 2.08 A, ESMR451VSN331MR30S for 2.1 A, and 450MXK330MEFCFA30X30 for 1.58 A. These ratings reflect the thermal and electrical design characteristics of each manufacturer's capacitor series.