684MABA03KGS Film Capacitor: Equivalent & Substitute Parts

Part Overview

The 684MABA03KGS is a 0.68 µF polypropylene film capacitor rated for 500V DC operation, manufactured by Cornell Dubilier / Illinois Capacitor in the MAB series. This component is designed for motor run applications with radial through-hole mounting. The part is currently obsolete, necessitating identification of equivalent and substitute components that maintain functional compatibility within the specified electrical and mechanical parameters.

Substiute Parts

684MABA03KGS

Cornell Dubilier / Illinois CapacitorIn Stock: 981684MABA03KGS Datasheet

Current PartRFQ

R46KN368000P0K

KEMETIn Stock: 2968R46KN368000P0K Datasheet

SimilarRFQ

R523N368050P0K

KEMETIn Stock: 2377R523N368050P0K Datasheet

SimilarRFQ

MABA033680KGL

NichiconIn Stock: 1031MABA033680KGL Datasheet

Parametric EquivalentRFQ

MABA033680KGS

NichiconIn Stock: 1044MABA033680KGS Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 684MABA03KGS is determined by strict adherence to the following electrical and mechanical parameters:

Critical Parameters for Substitution:

• Capacitance value: 0.68 µF (exact match required)
• Tolerance: ±10% (exact match required)
• Voltage Rating - DC: minimum 500V (equal or higher acceptable)
• Dielectric Material: Polypropylene (PP), Metallized (exact match required)
• Mounting Type: Through Hole (exact match required)
• Package / Case: Radial (exact match required)
• Lead Spacing: 0.886" (22.50mm) (exact match required)
• Termination: PC Pins (exact match required)

Substitute Categories:

Category 1: Parametric Equivalents – Parts with identical electrical specifications and physical dimensions. These are direct replacements suitable for motor run applications.

Category 2: Electrical Upgrades – Parts with identical capacitance and tolerance but higher voltage ratings. These are suitable for applications where the original 500V DC rating is sufficient, and the higher rating provides additional safety margin.

Parameter Comparison

Engineering Selection Recommendations

Parametric Equivalent Selection (Preferred for Direct Replacement):

MABA033680KGL and MABA033680KGS (both Nichicon) are parametric equivalents of the 684MABA03KGS. These parts maintain identical electrical specifications (0.68 µF, ±10%, 500V DC, 250V AC) and physical dimensions. Both are manufactured by Nichicon in the MAB series and are currently in active product status. These components are suitable for direct substitution in motor run applications without circuit modification. Both parts are ROHS3 compliant and available in production quantities.

Electrical Upgrade Selection (Higher Voltage Rating):

R46KN368000P0K (KEMET R46 series) and R523N368050P0K (KEMET R52 series) provide higher voltage ratings (560V DC and 630V DC respectively) while maintaining the same 0.68 µF capacitance and ±10% tolerance. These parts are suitable for applications where the original 500V DC specification is met and additional voltage margin is acceptable. Both KEMET parts are currently in active product status and ROHS3 compliant.

The R523N368050P0K includes AEC-Q200 automotive qualification, suitable for automotive applications. The R46KN368000P0K is rated for EMI/RFI suppression with X2 classification.

All substitute parts maintain through-hole radial mounting with identical lead spacing (0.886" / 22.50mm) and PC pin termination, ensuring mechanical compatibility with existing PCB layouts.

Frequently Asked Questions (FAQ)

Q: Can I use MABA033680KGL or MABA033680KGS as a direct replacement for 684MABA03KGS?

A: Yes. Both Nichicon parts are parametric equivalents with identical capacitance (0.68 µF), tolerance (±10%), voltage rating (500V DC / 250V AC), dielectric material (polypropylene metallized), operating temperature range (-40°C ~ 100°C), and physical dimensions. They are suitable for direct substitution in motor run applications without circuit modification.

Q: What is the difference between the Nichicon parametric equivalents (MABA033680KGL and MABA033680KGS)?

A: Both parts are identical in electrical and mechanical specifications. The difference is in the packaging designation suffix (KGL vs. KGS). Both are active products from Nichicon in the MAB series and are suitable for replacement applications.

Q: Can I use the KEMET R46KN368000P0K or R523N368050P0K instead of the original part?

A: Yes, with consideration of the higher voltage ratings. Both KEMET parts maintain the same 0.68 µF capacitance and ±10% tolerance. The R46KN368000P0K is rated for 560V DC, and the R523N368050P0K is rated for 630V DC. Both are suitable for applications where the original 500V DC specification is met. The higher voltage rating provides additional safety margin. Physical dimensions and lead spacing are compatible with the original part.

Q: Are there any temperature range differences I should consider?

A: The original 684MABA03KGS and Nichicon equivalents operate from -40°C to 100°C. The KEMET R46KN368000P0K and R523N368050P0K extend the upper operating temperature to 110°C. This extended range is suitable for applications requiring higher temperature operation.

Q: Do all substitute parts meet RoHS compliance?

A: Yes. All substitute parts listed (MABA033680KGL, MABA033680KGS, R46KN368000P0K, and R523N368050P0K) are ROHS3 compliant, matching the compliance status of the original 684MABA03KGS.

Q: What is the physical compatibility of these substitute parts?

A: All substitute parts maintain identical lead spacing (0.886" / 22.50mm) and radial through-hole mounting configuration. The seated height is 0.630" (16.00mm) for Nichicon parts and 0.634" (16.10mm) for KEMET parts, a difference of 0.004" (0.10mm). This minimal variation is within standard PCB layout tolerances and does not affect mechanical compatibility.

Q: Which substitute should I select for motor run applications?

A: The Nichicon parametric equivalents (MABA033680KGL or MABA033680KGS) are the preferred choice for motor run applications, as they maintain identical specifications to the original 684MABA03KGS. Both are currently in active production status.

Q: Is the R523N368050P0K suitable for automotive applications?

A: Yes. The R523N368050P0K includes AEC-Q200 automotive qualification and is rated for automotive applications. It maintains the same 0.68 µF capacitance and ±10% tolerance with a higher 630V DC rating.