CAP-3/440R Equivalent & Substitute Parts

Part Overview

The CAP-3/440R is a 3 µF, 440 V aluminum electrolytic capacitor with radial, can-style QC terminals, designed for motor run applications in HVAC systems. This component is classified as discontinued at DiGi Electronics, necessitating identification of active equivalent alternatives to maintain system functionality and ensure continued availability for replacement and new installations.

Substiute Parts

CAP-3/440R

Hartland Controls/LittelfuseIn Stock: 1108CAP-3/440R Datasheet

Current PartRFQ

CAP-3/440

Hartland Controls/LittelfuseIn Stock: 1077CAP-3/440 Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CAP-3/440R is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part must maintain identical specifications for capacitance (3 µF), rated voltage (440 V), tolerance (±3%), thermal lifetime (60000 Hrs @ 70°C), operating temperature range (-40°C ~ 70°C), polarization (Polar), package configuration (Radial, Can - QC Terminals), and mounting type (Chassis Mount). The primary distinction between the main part and its substitute is product status: the CAP-3/440R is discontinued, while the CAP-3/440 remains active in the manufacturer's product line. Both parts are manufactured by Hartland Controls/Littelfuse within the HCK Motor Run series and are certified for HVAC applications.

Parameter Comparison

Engineering Selection Recommendations

The CAP-3/440 is the direct equivalent substitute for the discontinued CAP-3/440R. Both parts are manufactured by Hartland Controls/Littelfuse and maintain identical electrical and mechanical specifications across all critical parameters. The CAP-3/440 is currently active in the manufacturer's product line, ensuring availability for procurement and deployment. Selection of the CAP-3/440 for replacement applications is supported by complete parameter equivalence and active product status, eliminating obsolescence risk associated with the discontinued CAP-3/440R. Both parts carry identical regulatory certifications (ECCN: EAR99; HTSUS: 8532.22.0055) and are suitable for direct substitution in HVAC motor run applications.

Frequently Asked Questions (FAQ)

Q: Can the CAP-3/440 directly replace the CAP-3/440R in existing HVAC systems?

A: Yes. The CAP-3/440 is a direct equivalent substitute. Both parts share identical capacitance (3 µF), voltage rating (440 V), tolerance (±3%), thermal lifetime (60000 Hrs @ 70°C), operating temperature range (-40°C ~ 70°C), package configuration (Radial, Can - QC Terminals), and mounting type (Chassis Mount). No circuit modifications or design changes are required.

Q: What is the primary reason for substitution?

A: The CAP-3/440R is discontinued at DiGi Electronics. The CAP-3/440 is the active equivalent from the same manufacturer and series, ensuring continued availability and supply chain continuity.

Q: Are there any differences in packaging between the two parts?

A: The CAP-3/440R packaging is listed as unspecified (-), while the CAP-3/440 is supplied in Box packaging. This difference does not affect electrical performance or mechanical compatibility in the application.

Q: Do both parts meet the same regulatory and compliance standards?

A: Yes. Both the CAP-3/440R and CAP-3/440 carry identical regulatory classifications (ECCN: EAR99; HTSUS: 8532.22.0055) and Moisture Sensitivity Level (MSL: 1 - Unlimited).

Q: What applications are these capacitors designed for?

A: Both parts are specified for HVAC applications and are classified within the HCK Motor Run series, indicating suitability for motor run capacitor applications in heating, ventilation, and air conditioning systems.