PSU59015B Equivalent & Substitute Parts Reference

Part Overview

The PSU59015B is a 590 µF, 125 V aluminum electrolytic capacitor manufactured by Cornell Dubilier Electronics (CDE) in the PSU series. This component features radial, can-style construction with QC terminals and is designed for motor start applications. The part is classified as Active product status with full RoHS3 compliance and REACH unaffected designation. Substitute parts are identified when inventory constraints, lead time requirements, or application-specific needs necessitate alternative sourcing while maintaining electrical and mechanical compatibility within specified tolerances.

Substiute Parts

PSU59015B

Cornell Dubilier Electronics (CDE)In Stock: 883PSU59015B Datasheet

Current PartRFQ

PSU59015A

Cornell Dubilier Electronics (CDE)In Stock: 1046PSU59015A Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for PSU59015B is determined by strict equivalence across the following critical parameters:

Electrical Parameters (Non-Negotiable):

• Capacitance value: 590 µF (exact match required)
• Voltage rating: 125 V (exact match required)
• Tolerance band: 0%, +20% (exact match required)
• Operating temperature range: -40°C to 65°C (exact match required)
• Polarization: Bi-Polar (exact match required)

Mechanical Parameters (Non-Negotiable):

• Package type: Radial, Can - QC Terminals (exact match required)
• Mounting type: Chassis Mount (exact match required)
• Diameter: 1.813" (46.05 mm) (exact match required)

Compliance Parameters:

• RoHS3 compliance status (required for regulated applications)
• MSL rating: 1 (Unlimited) (required for storage and handling)

Substitute parts must satisfy all electrical, mechanical, and compliance criteria simultaneously. Height variation is permitted within the same product family when all other parameters remain equivalent, as height does not affect electrical performance or primary mounting compatibility in chassis-mount applications.

Parameter Comparison

Engineering Selection Recommendations

PSU59015B Selection Criteria:

• Primary choice when space constraints require the minimum seated height of 3.375" (85.73 mm)
• Current inventory: 794 pieces available
• Suitable for applications with strict vertical clearance limitations

PSU59015A Selection Criteria:

• Equivalent electrical and mechanical performance with increased seated height of 4.375" (111.13 mm)
• Higher inventory availability: 975 pieces in stock
• Suitable for applications where additional height does not create design conflicts
• Recommended when lead time optimization or bulk procurement is prioritized

Compliance Basis: Both parts maintain identical RoHS3 compliance, REACH unaffected status, and MSL rating of 1 (Unlimited). Selection between PSU59015B and PSU59015A is determined solely by physical space availability in the target application and inventory requirements. No electrical performance differentiation exists between the two parts.

Frequently Asked Questions (FAQ)

Q: Can PSU59015A replace PSU59015B in any application?

A: PSU59015A is electrically and mechanically equivalent to PSU59015B across all critical parameters: capacitance (590 µF), voltage rating (125 V), tolerance (0%, +20%), operating temperature range (-40°C to 65°C), polarization (Bi-Polar), package type (Radial, Can - QC Terminals), and mounting type (Chassis Mount). The only difference is seated height: PSU59015B measures 3.375" (85.73 mm) while PSU59015A measures 4.375" (111.13 mm). Substitution is valid provided the application accommodates the increased height.

Q: What does "Radial, Can - QC Terminals" mean?

A: This designation describes the physical form factor and terminal configuration. "Radial" indicates leads extend from the same end of the cylindrical can body. "Can" refers to the aluminum electrolytic capacitor housing. "QC Terminals" specifies quick-connect terminal style, which is a standardized connection method for this component category.

Q: Are both parts suitable for motor start applications?

A: Yes. Both PSU59015B and PSU59015A are rated for motor start applications. The 590 µF capacitance at 125 V with bi-polar polarization and the specified operating temperature range (-40°C to 65°C) support this application classification for both parts.

Q: What is the significance of the tolerance specification "0%, +20%"?

A: This tolerance band indicates the capacitance value will not deviate below the nominal 590 µF (0% lower limit) and will not exceed 708 µF (20% upper limit). Both PSU59015B and PSU59015A share identical tolerance specifications, ensuring equivalent performance in circuits designed for this capacitance range.

Q: Do both parts have the same compliance certifications?

A: Yes. Both PSU59015B and PSU59015A are ROHS3 compliant, REACH unaffected, and carry MSL rating 1 (Unlimited). They are functionally equivalent from a regulatory and environmental compliance perspective.

Q: What is the difference in inventory between the two parts?

A: PSU59015B has 794 pieces in stock, while PSU59015A has 975 pieces available. PSU59015A offers higher inventory availability, which may be relevant for procurement planning or bulk order requirements.

Q: Can height variation affect circuit performance?

A: No. The height difference between PSU59015B (3.375") and PSU59015A (4.375") does not affect electrical performance. Height variation is a physical design consideration only and does not impact capacitance, voltage rating, tolerance, temperature range, or any electrical characteristic. Selection is based on available space in the target application.