RFS-10V332MK9#5 Equivalent & Substitute Parts

Part Overview

The RFS-10V332MK9#5 is a 3300 µF, 10 V aluminum electrolytic capacitor in radial, can package manufactured by Elna America. This component is rated for 1000 hours at 85°C and is designed for audio applications. The part is classified as obsolete, necessitating identification of equivalent and substitute components for ongoing production support and design continuity.

Substiute Parts

RFS-10V332MK9#5

Elna AmericaIn Stock: 932RFS-10V332MK9#5 Datasheet

Current PartRFQ

678D338M016FR3D

Vishay SpragueIn Stock: 1187678D338M016FR3D Datasheet

UpgradeRFQ

UPJ1V332MHD

NichiconIn Stock: 1320UPJ1V332MHD Datasheet

UpgradeRFQ

UKW1A332MHD

NichiconIn Stock: 1152UKW1A332MHD Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RFS-10V332MK9#5 is determined by the following critical parameters:

Mandatory Matching Parameters:

• Capacitance: 3300 µF (exact match required)
• Tolerance: ±20% (exact match required)
• Polarization: Polar (exact match required)
• Mounting Type: Through Hole (exact match required)
• Package / Case: Radial, Can (exact match required)
• Lead Spacing: 0.295" (7.50mm) (exact match required)
• Physical Dimensions: 0.709" Dia (18.00mm) and 1.575" (40.00mm) height (exact match required)

Allowable Variation Parameters:

• Voltage - Rated: May be equal to or greater than 10 V
• Lifetime @ Temperature: May be equal to or greater than 1000 Hrs @ 85°C
• Operating Temperature Range: May be equal to or wider than -40°C ~ 85°C
• ESR and Ripple Current: May vary within acceptable performance bounds

Substitute parts are classified into two categories:

Upgrade Substitutes: Parts with voltage ratings higher than 10 V or extended lifetime ratings, providing enhanced performance margins while maintaining identical physical and electrical compatibility.

Similar Substitutes: Parts with identical voltage and capacitance ratings but different physical dimensions or performance characteristics, suitable only when form factor constraints permit.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Identical Form Factor and Voltage):

The UKW1A332MHD from Nichicon provides a direct mechanical and electrical substitute with identical 10 V rating and 3300 µF capacitance. However, this part is classified as "Not For New Designs." The UKW1A332MHD offers improved lifetime (2000 Hrs @ 85°C versus 1000 Hrs @ 85°C) and maintains ROHS3 compliance. This option is suitable for legacy system maintenance where form factor constraints are strict.

For Enhanced Performance (Upgrade Path):

The 678D338M016FR3D from Vishay Sprague provides a direct mechanical substitute with upgraded voltage rating (16 V) and significantly extended lifetime (4000 Hrs @ 105°C). This part maintains identical physical dimensions and lead spacing. However, this part is RoHS non-compliant, which may restrict use in regulated applications. The 678D338M016FR3D is classified as Active, ensuring long-term availability.

The UPJ1V332MHD from Nichicon provides the highest performance upgrade with 35 V rating and 5000 Hrs @ 105°C lifetime. This part maintains identical physical dimensions and lead spacing, and is ROHS3 compliant. The UPJ1V332MHD is classified as "Not For New Designs," indicating limited future availability. This option is suitable for applications requiring maximum voltage margin and extended operational life.

For Space-Constrained Applications:

The UKW1A332MHD is not suitable for applications where the original form factor cannot be accommodated, as it features significantly smaller dimensions (0.492" Dia, 0.787" height, and 0.197" lead spacing). This part should only be selected if PCB layout permits the smaller footprint.

Frequently Asked Questions (FAQ)

Q: Can the 678D338M016FR3D replace the RFS-10V332MK9#5 in my audio application?

A: Yes, the 678D338M016FR3D is mechanically and electrically compatible. It maintains identical physical dimensions, lead spacing, and capacitance. The higher voltage rating (16 V) provides additional safety margin. However, verify RoHS compliance requirements for your application, as this part is RoHS non-compliant.

Q: What is the difference between the upgrade substitutes and the similar substitute?

A: The upgrade substitutes (678D338M016FR3D and UPJ1V332MHD) maintain identical physical dimensions and lead spacing to the original part, enabling direct PCB replacement. The similar substitute (UKW1A332MHD) has significantly smaller dimensions and different lead spacing, requiring PCB layout modification.

Q: Why is the UPJ1V332MHD classified as "Not For New Designs" if it offers superior performance?

A: "Not For New Designs" indicates the manufacturer is phasing out this product line. While suitable for legacy system support and maintenance, it should not be selected for new product development due to uncertain long-term availability.

Q: Are all substitute parts through-hole radial can capacitors?

A: Yes, all substitute parts listed are through-hole mounted radial can aluminum electrolytic capacitors, maintaining compatibility with the original RFS-10V332MK9#5 mounting type and package style.

Q: What are the key parameters I must verify before selecting a substitute?

A: Verify capacitance (3300 µF), tolerance (±20%), polarization (Polar), mounting type (Through Hole), package type (Radial, Can), lead spacing (0.295" / 7.50mm), and physical dimensions (0.709" Dia / 18.00mm and 1.575" height / 40.00mm). The voltage rating may be equal to or higher than 10 V.

Q: Can I use the UKW1A332MHD if my PCB layout accommodates the smaller form factor?

A: Yes, the UKW1A332MHD is electrically compatible with identical capacitance, tolerance, voltage rating, and operating temperature range. However, verify that your PCB layout can accommodate the smaller dimensions (0.492" Dia, 0.787" height) and different lead spacing (0.197" / 5.00mm) before selection.

Q: Which substitute offers the best long-term availability?

A: The 678D338M016FR3D from Vishay Sprague is classified as Active, indicating ongoing production and long-term availability. The other substitutes are either Obsolete or "Not For New Designs," which may limit future procurement options.