PSU4735 Equivalent & Substitute Parts Reference

Part Overview

The PSU4735 is a 47 µF, 250 V aluminum electrolytic capacitor with radial leads and QC terminals, manufactured by Cornell Dubilier Electronics (CDE). This component is classified as an active product and is designed for motor start applications in chassis-mounted configurations. The PSU4735 operates across a temperature range of -40°C to 65°C and maintains bi-polar polarization characteristics.

Substitute parts are identified when electrical specifications, mechanical dimensions, and compliance certifications remain equivalent or functionally interchangeable within the defined parameter tolerances for this product category.

Substiute Parts

PSU4735

Cornell Dubilier Electronics (CDE)In Stock: 764PSU4735 Datasheet

Current PartRFQ

PSU4735A

Cornell Dubilier Electronics (CDE)In Stock: 710PSU4735A Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PSU4735 is determined by strict equivalence across the following critical parameters:

Electrical Parameters (Non-Negotiable):

• Capacitance value: 47 µF
• Rated voltage: 250 V
• Tolerance specification: 0%, +20%
• Polarization type: Bi-Polar

Mechanical Parameters (Non-Negotiable):

• Package configuration: Radial, Can - QC Terminals
• Mounting classification: Chassis Mount
• Diameter: 1.438" (36.53 mm)

Environmental & Compliance Parameters:

• Operating temperature range: -40°C to 65°C
• RoHS3 compliance status
• REACH unaffected classification

The PSU4735A qualifies as a direct substitute because it maintains identical electrical specifications, identical diameter, identical package type, identical mounting method, and identical compliance certifications. The only variance is in the seated height dimension (2.810" vs. 3.375"), which does not affect electrical performance or functional interchangeability in motor start applications.

Parameter Comparison

Engineering Selection Recommendations

Both PSU4735 and PSU4735A are active products manufactured by Cornell Dubilier Electronics and carry identical ROHS3 compliance and REACH unaffected certifications. Selection between these parts should be based on the following criteria:

PSU4735: Select this part number when the application requires a seated height of 3.375" (85.73 mm) or when existing designs specify this exact dimension.

PSU4735A: Select this part number when the application permits a seated height of 2.810" (71.37 mm) or when space constraints favor the shorter profile. This variant provides equivalent electrical performance and compliance status.

Both parts are suitable for motor start applications and maintain full functional equivalence across all electrical parameters, operating temperature ranges, and regulatory compliance requirements.

Frequently Asked Questions (FAQ)

Q: Can PSU4735A be used as a direct replacement for PSU4735?

A: Yes. The PSU4735A is electrically and mechanically equivalent to the PSU4735 across all critical parameters: capacitance, voltage rating, tolerance, package type, mounting method, and operating temperature range. The only difference is seated height (2.810" vs. 3.375"), which does not affect electrical function or circuit performance.

Q: What is the significance of the height difference between PSU4735 and PSU4735A?

A: The seated height variance (0.565" or 14.36 mm) is a mechanical dimension only. This difference does not impact electrical performance, capacitance value, voltage rating, or thermal characteristics. Selection should be based on available space in the chassis or PCB layout.

Q: Are both parts RoHS3 compliant?

A: Yes. Both PSU4735 and PSU4735A carry ROHS3 compliance certification and REACH unaffected status, meeting current environmental and regulatory requirements.

Q: What applications are these capacitors designed for?

A: Both parts are specified for motor start applications. They are rated for 250 V operation and maintain stable performance across the -40°C to 65°C operating temperature range.

Q: Do these parts have identical QC terminal specifications?

A: Yes. Both PSU4735 and PSU4735A use identical Radial, Can - QC Terminal package configurations, ensuring mechanical and electrical compatibility with existing QC terminal connection systems.

Q: What is the tolerance specification for these capacitors?

A: Both parts carry a tolerance specification of 0%, +20%, meaning the actual capacitance value will not fall below the nominal 47 µF rating and will not exceed 56.4 µF.