Equivalent & Substitute Parts for SLPX221M350E1P3

Part Overview

The SLPX221M350E1P3 is a 220 µF, 350 V aluminum electrolytic capacitor manufactured by Cornell Dubilier Electronics (CDE) in a radial, can snap-in package. This component is classified as Active product status and is designed for general-purpose applications requiring through-hole mounting. The part is ROHS3 compliant and suitable for applications operating within -25°C to 85°C temperature range with a rated lifetime of 3000 hours at 85°C.

Substitute parts are identified when equivalent capacitance and tolerance values are maintained while voltage ratings, thermal performance, or ESR characteristics may be upgraded to meet enhanced system requirements or improve component availability.

Substiute Parts

SLPX221M350E1P3

Cornell Dubilier Electronics (CDE)In Stock: 1175SLPX221M350E1P3 Datasheet

Current PartRFQ

400MXG220MEFCSN30X25

RubyconIn Stock: 1165400MXG220MEFCSN30X25 Datasheet

UpgradeRFQ

B43508C9227M000

EPCOS - TDK ElectronicsIn Stock: 1422B43508C9227M000 Datasheet

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LGN2G221MELB25

NichiconIn Stock: 2353LGN2G221MELB25 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SLPX221M350E1P3 are qualified based on the following criteria:

Mandatory Matching Parameters:

• Capacitance: 220 µF (exact match)
• Tolerance: ±20% (exact match)
• Package / Case: Radial, Can - Snap-In (exact match)
• Lead Spacing: 0.394" (10.00mm) (exact match)
• Size / Dimension: 1.181" Dia (30.00mm) (exact match)
• Mounting Type: Through Hole (exact match)
• Polarization: Polar (exact match)

Allowable Upgrade Parameters:

• Voltage - Rated: 350 V (minimum); substitutes rated at 400 V are acceptable as higher voltage rating provides enhanced safety margin
• Operating Temperature: -25°C ~ 85°C (minimum); substitutes with extended upper temperature range (-25°C ~ 105°C or -40°C ~ 105°C) are acceptable
• Lifetime @ Temp.: 3000 Hrs @ 85°C (minimum); substitutes with 3000 Hrs @ 105°C represent improved thermal performance
• ESR (Equivalent Series Resistance): Lower values are acceptable as they indicate improved electrical performance
• RoHS Status: ROHS3 Compliant (required)

All three substitute parts meet these criteria and maintain mechanical and electrical compatibility with the original SLPX221M350E1P3 specification.

Parameter Comparison

Engineering Selection Recommendations

All three substitute parts are qualified alternatives to the SLPX221M350E1P3 based on compliance and product status criteria:

400MXG220MEFCSN30X25 (Rubycon MXG Series): This substitute provides a 400 V rated voltage with extended operating temperature range to 105°C and improved thermal lifetime rating. Mechanical compatibility is confirmed with identical lead spacing and package dimensions. ROHS3 compliance and Active product status support long-term availability.

B43508C9227M000 (EPCOS - TDK B43508 Series): This substitute offers the lowest ESR specification at 560 mOhm @ 100Hz, representing improved electrical performance compared to the original 905 mOhm @ 120Hz. The extended operating temperature range to -40°C provides enhanced cold-temperature performance. Height dimension of 1.071" (27.20mm) represents a 0.008" increase from the original specification. ROHS3 compliance and Active product status are confirmed.

LGN2G221MELB25 (Nichicon LGN Series): This substitute maintains the most similar thermal profile with 3000 Hrs @ 105°C lifetime rating and operating temperature range of -25°C ~ 105°C. Mechanical dimensions are identical to the original part. ROHS3 compliance and Active product status support deployment in regulated applications.

All substitutes maintain the 220 µF capacitance, ±20% tolerance, and through-hole snap-in package configuration required for direct board-level replacement.

Frequently Asked Questions (FAQ)

Q: Can the SLPX221M350E1P3 be directly replaced with any of the substitute parts?

A: Yes. All three substitute parts maintain identical capacitance (220 µF), tolerance (±20%), lead spacing (0.394" / 10.00mm), diameter (1.181" / 30.00mm), and mounting type (through-hole snap-in). The substitutes are mechanically and electrically compatible for direct board-level replacement.

Q: What is the primary difference between the original part and the substitutes?

A: The substitute parts are rated at 400 V compared to the original 350 V rating. This represents an upgrade in voltage margin. Additionally, all substitutes feature extended operating temperature ranges to 105°C and improved thermal lifetime ratings at elevated temperatures compared to the original 3000 Hrs @ 85°C specification.

Q: Does the B43508C9227M000 height difference of 0.008" (0.20mm) affect compatibility?

A: The B43508C9227M000 height of 1.071" (27.20mm) is within typical manufacturing tolerances for snap-in capacitor packages. This minor dimension increase does not affect mechanical fit in standard through-hole applications designed for 1.063" (27.00mm) seated height.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All three substitute parts carry ROHS3 Compliant certification, matching the original SLPX221M350E1P3 specification.

Q: Which substitute part offers the best electrical performance?

A: The B43508C9227M000 specifies the lowest ESR at 560 mOhm @ 100Hz, compared to the original 905 mOhm @ 120Hz. Lower ESR indicates reduced impedance and improved ripple current handling capability.

Q: Can these substitutes be used in applications requiring the original -25°C lower temperature limit?

A: Yes. All three substitute parts maintain the -25°C lower operating temperature limit. The B43508C9227M000 extends the lower limit to -40°C, providing enhanced cold-temperature performance.