CAP-35/440R Equivalent & Substitute Parts

Part Overview

The CAP-35/440R is a 35 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 for HVAC applications, rated for 60,000 hours at 70°C operating temperature. The part maintains Active product status with 746 units currently in stock. Substitute parts are identified when equivalent electrical specifications, mechanical packaging, and operational ratings align with the original component, enabling direct replacement in circuit applications without performance degradation.

Substiute Parts

CAP-35/440R

Hartland Controls/LittelfuseIn Stock: 780CAP-35/440R Datasheet

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CAP-35/440

Hartland Controls/LittelfuseIn Stock: 947CAP-35/440 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CAP-35/440R is determined by strict equivalence across the following critical parameters:

• Capacitance Value: 35 µF (exact match required)
• Voltage Rating: 440 V (exact match required)
• Tolerance: ±3% (exact match required)
• Lifetime Rating: 60000 Hrs @ 70°C (exact match required)
• Operating Temperature Range: -40°C ~ 70°C (exact match required)
• Polarization: Polar (exact match required)
• Package Configuration: Radial, Can - QC Terminals (exact match required)
• Mounting Type: Chassis Mount (exact match required)
• Series Classification: HCK, Motor Run (exact match required)

The substitute part CAP-35/440 meets all specified electrical and mechanical parameters, confirming direct interchangeability with the original CAP-35/440R component.

Parameter Comparison

Engineering Selection Recommendations

Both CAP-35/440R and CAP-35/440 are classified as Active products manufactured by Hartland Controls/Littelfuse, confirming ongoing production and supply chain availability. Both components carry identical ECCN classification (EAR99) and comply with the same export control standards. The electrical specifications, mechanical packaging, and operational ratings are fully equivalent across all provided parameters. Selection between these parts may be based on inventory availability: CAP-35/440R has 746 units in stock, while CAP-35/440 has 899 units in stock. Both parts are suitable for direct substitution in HVAC motor run capacitor applications requiring 35 µF at 440 V with ±3% tolerance and 60,000-hour lifetime rating at 70°C.

Frequently Asked Questions (FAQ)

Q: Can CAP-35/440 replace CAP-35/440R in an existing circuit?

A: Yes. Both parts are electrically and mechanically equivalent across all specified parameters: 35 µF capacitance, 440 V voltage rating, ±3% tolerance, 60,000-hour lifetime at 70°C, identical operating temperature range, polar polarization, radial can package with QC terminals, and chassis mount configuration. Direct substitution is supported.

Q: Are there differences in the part numbers that affect compatibility?

A: The part numbers CAP-35/440R and CAP-35/440 differ only in the suffix designation. All functional electrical and mechanical specifications remain identical. Both are manufactured by Hartland Controls/Littelfuse within the HCK motor run series.

Q: What is the significance of the QC terminal configuration?

A: QC (Quick Connect) terminals are a specific mechanical interface for radial can capacitors. Both the main part and substitute feature identical QC terminal packaging, ensuring compatible connection to existing circuit board or chassis mounting points without modification.

Q: Are both parts suitable for HVAC applications?

A: Yes. Both CAP-35/440R and CAP-35/440 are specified for HVAC applications and carry identical motor run capacitor ratings, operating temperature ranges, and lifetime specifications required for HVAC system operation.

Q: What is the moisture sensitivity level, and does it affect substitution?

A: Both parts carry MSL rating 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling. This specification is identical for both components and does not impact substitution eligibility.