Equivalent & Substitute Parts for 23FD3745-F Film Capacitor

Part Overview

The Cornell Dubilier Electronics (CDE) 23FD3745-F is a 45 µF film capacitor rated for 370V AC operation, designed for motor run and power factor correction applications. This component features a polypropylene metallized dielectric in a radial can package with quick connect termination. The 23FD3745-F carries an obsolete product status, making identification of equivalent substitute parts essential for system maintenance and component procurement.

Substiute Parts

23FD3745-F

Cornell Dubilier Electronics (CDE)In Stock: 113723FD3745-F Datasheet

Current PartRFQ

23FD3745A-F

Cornell Dubilier Electronics (CDE)In Stock: 106023FD3745A-F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 23FD3745-F is determined by strict equivalence across the following critical parameters:

Electrical Parameters (Non-Negotiable):

• Capacitance value: 45 µF
• Tolerance: ±10%
• Voltage rating (AC): 370V
• Dielectric material: Polypropylene (PP), Metallized

Mechanical Parameters (Non-Negotiable):

• Package type: Radial, Can
• Mounting type: Chassis Mount, Requires Holder/Bracket
• Termination style: Quick Connect, Disconnect
• Lead spacing: 0.813" (20.64mm)

Environmental & Compliance Parameters:

• Operating temperature range: -40°C to 70°C
• RoHS3 Compliance

The substitute part 23FD3745A-F meets all electrical and mechanical equivalence criteria. Dimensional variation in seated height does not affect substitution eligibility, as the component requires external holder/bracket mounting.

Parameter Comparison

Engineering Selection Recommendations

The 23FD3745A-F is a direct electrical and mechanical equivalent to the obsolete 23FD3745-F. Both components are manufactured by Cornell Dubilier Electronics within the MPF series and maintain identical electrical specifications, dielectric composition, and termination characteristics.

The 23FD3745A-F carries an active product status, ensuring ongoing availability and supply chain continuity. Both parts maintain ROHS3 compliance and identical moisture sensitivity ratings (MSL 1 - Unlimited), supporting equivalent environmental performance in motor run and power factor correction applications.

The seated height difference (3.250" versus 4.090") does not affect substitution compatibility, as both components require external holder/bracket mounting. Physical clearance must be evaluated within the specific application enclosure, but electrical and mechanical interface requirements remain unchanged.

Frequently Asked Questions (FAQ)

Q: Can the 23FD3745A-F replace the 23FD3745-F in existing motor run applications?

A: Yes. Both components share identical capacitance (45 µF), voltage rating (370V AC), dielectric material (polypropylene metallized), tolerance (±10%), operating temperature range (-40°C to 70°C), and termination style (quick connect/disconnect). Electrical performance and circuit compatibility are equivalent.

Q: What is the significance of the height difference between these parts?

A: The 23FD3745-F has a seated height of 3.250" (82.55mm), while the 23FD3745A-F measures 4.090" (103.88mm). Since both components require external holder/bracket mounting, physical clearance within the application enclosure must be confirmed. The electrical interface and lead spacing (0.813") remain identical.

Q: Are both parts RoHS compliant?

A: Yes. Both the 23FD3745-F and 23FD3745A-F are ROHS3 compliant and carry identical moisture sensitivity levels (MSL 1 - Unlimited), supporting equivalent environmental and regulatory requirements.

Q: Why is the 23FD3745-F listed as obsolete?

A: The 23FD3745-F carries an obsolete product status. The 23FD3745A-F, with active product status, is the current equivalent offering from Cornell Dubilier Electronics and is recommended for new procurement and system maintenance.

Q: Are there any packaging differences between these parts?

A: The 23FD3745-F is packaged individually, while the 23FD3745A-F is supplied in bulk packaging. Both contain identical component specifications. Packaging format does not affect electrical or mechanical performance.