PSU27035B Equivalent & Substitute Parts Reference

Part Overview

The PSU27035B is a 270 µF, 250 V aluminum electrolytic capacitor manufactured by Cornell Dubilier Electronics (CDE) in the PSU series. This radial, can-style component features QC terminals and is designed for motor start applications. The part is currently active in production with full inventory availability. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity for applications requiring identical electrical and mechanical specifications.

Substiute Parts

PSU27035B

Cornell Dubilier Electronics (CDE)In Stock: 1042PSU27035B Datasheet

Current PartRFQ

PSU27035A

Cornell Dubilier Electronics (CDE)In Stock: 1088PSU27035A Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PSU27035B is determined by strict equivalence across the following critical parameters:

Electrical Specifications: Capacitance value (270 µF), voltage rating (250 V), and tolerance band (0%, +20%) must be identical. Polarization type (Bi-Polar) must match exactly.

Mechanical Specifications: Package type (Radial, Can - QC Terminals), mounting configuration (Chassis Mount), and can diameter (2.063" / 52.40 mm) must be identical to ensure physical compatibility in existing circuit board layouts and mechanical assemblies.

Environmental & Compliance: Operating temperature range (-40°C to 65°C), RoHS3 compliance, and MSL rating (1 - Unlimited) must be maintained.

Application Compatibility: Motor start application designation must be supported by the substitute part.

The PSU27035A meets all substitution criteria and is classified as a direct equivalent to the PSU27035B.

Parameter Comparison

Engineering Selection Recommendations

PSU27035B Selection Criteria: The PSU27035B is the primary specification when space constraints require a maximum seated height of 3.375" (85.73 mm). This part is active in production with robust inventory (1011 units) and full ROHS3 compliance certification.

PSU27035A Selection Criteria: The PSU27035A is electrically and mechanically equivalent to the PSU27035B with identical electrical performance and mounting compatibility. The primary distinction is the increased seated height of 4.435" (112.65 mm). This part is suitable for applications where vertical space is not constrained. PSU27035A maintains active production status with adequate inventory (995 units) and identical compliance certifications.

Substitution Applicability: Both parts are suitable for motor start applications within the specified operating temperature range. Selection between PSU27035B and PSU27035A depends solely on available vertical clearance in the target assembly. All other electrical, mechanical, and compliance parameters are equivalent.

Frequently Asked Questions (FAQ)

Q: Can PSU27035A be used as a direct replacement for PSU27035B? A: PSU27035A is electrically and mechanically equivalent to PSU27035B. The only difference is seated height (4.435" vs. 3.375"). Substitution is valid if vertical clearance in the assembly accommodates the taller component.

Q: What is the significance of the height difference between PSU27035B and PSU27035A? A: Both parts have identical can diameter (2.063" / 52.40 mm) and QC terminal configuration. The height difference reflects different internal construction. PSU27035B is specified for space-constrained applications, while PSU27035A is suitable for applications with greater vertical clearance.

Q: Are both parts RoHS3 compliant? A: Yes. Both PSU27035B and PSU27035A are ROHS3 compliant with MSL rating of 1 (Unlimited moisture sensitivity level).

Q: What applications are these capacitors designed for? A: Both PSU27035B and PSU27035A are specified for motor start applications. The 270 µF capacitance and 250 V rating support standard motor starting circuits.

Q: Are there any temperature or environmental restrictions? A: Both parts operate within the range of -40°C to 65°C. No additional environmental restrictions apply beyond standard handling for MSL 1 components.

Q: How do I determine which part to use in my design? A: Verify available vertical clearance in your assembly. If maximum height must not exceed 3.375" (85.73 mm), specify PSU27035B. If clearance permits up to 4.435" (112.65 mm), either part is acceptable. All other electrical and mechanical parameters are identical.