CAP-50/440 Equivalent & Substitute Parts

Part Overview

The CAP-50/440 is a 50 µF, 440 V aluminum electrolytic capacitor with radial, can-style QC terminals manufactured by Hartland Controls/Littelfuse. This component is classified as a motor run capacitor within the HCK series and is designed for HVAC applications. The part is currently active in production with 1080 pieces in stock. Substitute parts are identified when equivalent electrical specifications, mechanical packaging, and compliance certifications align with the original component, enabling direct replacement in circuit applications without design modification.

Substiute Parts

CAP-50/440

Hartland Controls/LittelfuseIn Stock: 1141CAP-50/440 Datasheet

Current PartRFQ

CAP-50/440R

Hartland Controls/LittelfuseIn Stock: 1090CAP-50/440R Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CAP-50/440 is determined by strict equivalence across the following critical parameters:

• Capacitance Value: 50 µF (exact match required)
• Voltage Rating: 440 V (exact match required)
• Tolerance: ±3% (exact match required)
• Lifetime Specification: 60000 Hrs @ 70°C (exact match required)
• Operating Temperature Range: -40°C ~ 70°C (exact match required)
• Package Configuration: Radial, Can - QC Terminals (exact match required)
• Mounting Type: Chassis Mount (exact match required)
• Polarization: Polar (exact match required)
• Series Classification: HCK, Motor Run (exact match required)
• Compliance: ROHS3 Compliant (exact match required)

The substitute part CAP-50/440R meets all electrical and mechanical parameters specified above, confirming direct interchangeability in HVAC motor run applications.

Parameter Comparison

Engineering Selection Recommendations

Both CAP-50/440 and CAP-50/440R are active production components manufactured by Hartland Controls/Littelfuse with full ROHS3 compliance. Selection between these parts is based on inventory availability and application continuity requirements. The CAP-50/440 maintains 1080 pieces in stock, while the CAP-50/440R variant maintains 1005 pieces in stock. Both components satisfy identical electrical specifications, mechanical packaging requirements, and regulatory compliance standards for HVAC motor run applications. No performance differential exists between these parts based on the provided specifications.

Frequently Asked Questions (FAQ)

Q: Can CAP-50/440R be used as a direct replacement for CAP-50/440?

A: Yes. CAP-50/440R is a direct substitute for CAP-50/440. All electrical parameters (50 µF, 440 V, ±3% tolerance, 60000 Hrs @ 70°C), mechanical packaging (Radial, Can - QC Terminals, Chassis Mount), and compliance certifications (ROHS3) are identical.

Q: What are the critical parameters that must match for substitution?

A: Capacitance (50 µF), voltage rating (440 V), tolerance (±3%), lifetime specification (60000 Hrs @ 70°C), operating temperature range (-40°C ~ 70°C), package type (Radial, Can - QC Terminals), mounting configuration (Chassis Mount), and series classification (HCK, Motor Run) must all match exactly.

Q: Are there any differences in the part numbers CAP-50/440 and CAP-50/440R?

A: The part numbers differ only in the suffix designation (R variant). Both parts are manufactured by the same supplier and share identical electrical and mechanical specifications.

Q: What applications are these capacitors suitable for?

A: Both CAP-50/440 and CAP-50/440R are designed for HVAC applications, specifically as motor run capacitors within the HCK series.

Q: Are both parts RoHS compliant?

A: Yes. Both CAP-50/440 and CAP-50/440R are ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited).

Q: What is the operating temperature range for these capacitors?

A: The operating temperature range for both parts is -40°C to 70°C, with a rated lifetime of 60000 hours at 70°C.