SLPX391M350E5P3 Equivalent & Substitute Parts

Part Overview

The SLPX391M350E5P3 is a 390 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 REACH unaffected.

Substitute parts are identified when equivalent capacitance and voltage ratings are available from alternative manufacturers, provided the physical form factor, mounting type, and polarization remain consistent. Substitutes may offer improved performance characteristics such as extended lifetime ratings or enhanced operating temperature ranges while maintaining functional compatibility within the specified electrical parameters.

Substiute Parts

SLPX391M350E5P3

Cornell Dubilier Electronics (CDE)In Stock: 803SLPX391M350E5P3 Datasheet

Current PartRFQ

400VXH390MEFCSN30X35

RubyconIn Stock: 274007400VXH390MEFCSN30X35 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SLPX391M350E5P3 are qualified based on the following criteria:

Electrical Compatibility:

• Capacitance value: 390 µF (exact match required)
• Tolerance: ±20% (matching specification)
• Voltage rating: Equal to or greater than 350 V
• Polarization: Polar (matching specification)

Mechanical Compatibility:

• Package type: Radial, Can - Snap-In (exact match required)
• Mounting type: Through Hole (exact match required)
• Lead spacing: 0.394" (10.00mm) (exact match required)
• Physical dimensions: 1.181" Dia (30.00mm) and 1.457" (37.00mm) height (exact match required)

Compliance & Status:

• Product status: Active
• RoHS compliance: ROHS3 Compliant
• REACH status: REACH Unaffected

The substitute part 400VXH390MEFCSN30X35 meets all mechanical and electrical compatibility criteria while offering enhanced performance characteristics in lifetime rating and operating temperature range.

Parameter Comparison

Engineering Selection Recommendations

The 400VXH390MEFCSN30X35 manufactured by Rubycon qualifies as a direct substitute for the SLPX391M350E5P3. Both components are Active product status and ROHS3 compliant with REACH unaffected designation.

The substitute part provides a higher voltage rating (400 V versus 350 V), which ensures compatibility in circuits designed for the original 350 V specification. The extended operating temperature range (-25°C ~ 105°C versus -25°C ~ 85°C) and increased lifetime rating (5000 Hrs @ 105°C versus 3000 Hrs @ 85°C) represent performance enhancements over the original part.

Physical form factor, lead spacing, and mounting configuration are identical between both parts, ensuring direct mechanical compatibility on existing printed circuit boards without layout modifications.

Frequently Asked Questions (FAQ)

Q: Can the 400VXH390MEFCSN30X35 be used as a direct replacement for the SLPX391M350E5P3?

A: Yes. Both parts share identical capacitance (390 µF), tolerance (±20%), package type (Radial, Can - Snap-In), mounting type (Through Hole), lead spacing (10.00mm), and physical dimensions (1.181" Dia × 1.457" height). The substitute part has a higher voltage rating (400 V) and extended operating temperature range, making it functionally compatible in applications designed for the original 350 V specification.

Q: What are the physical compatibility requirements for substitution?

A: Substitute parts must maintain identical lead spacing (0.394" / 10.00mm), case diameter (1.181" / 30.00mm), seated height (1.457" / 37.00mm), and package configuration (Radial, Can - Snap-In). These dimensions ensure direct mounting compatibility without printed circuit board modifications.

Q: Are both parts compliant with environmental regulations?

A: Yes. Both the SLPX391M350E5P3 and 400VXH390MEFCSN30X35 are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic component manufacturing and use.

Q: What is the significance of the voltage rating difference?

A: The substitute part has a 400 V rating compared to the original 350 V rating. A higher voltage rating provides additional safety margin in circuits operating at or below 350 V. The substitute part remains fully compatible with applications designed for 350 V operation.

Q: How do the lifetime ratings differ between the two parts?

A: The original SLPX391M350E5P3 is rated for 3000 hours at 85°C. The substitute 400VXH390MEFCSN30X35 is rated for 5000 hours at 105°C, indicating extended operational life under elevated temperature conditions.