CAP-55/440R Equivalent & Substitute Parts

Part Overview

The CAP-55/440R is a 55 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 and is rated for 60,000 hours of operation at 70°C. The part maintains Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Substitute parts are identified to support inventory management, supply chain continuity, and component availability across equivalent specifications.

Substiute Parts

CAP-55/440R

Hartland Controls/LittelfuseIn Stock: 915CAP-55/440R Datasheet

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CAP-55/440

Hartland Controls/LittelfuseIn Stock: 1053CAP-55/440 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the CAP-55/440R is based on electrical and mechanical parameter equivalence within the aluminum electrolytic capacitor category. The substitute part CAP-55/440 shares identical specifications across all critical selection criteria:

Key Parameters for Substitution:

• Capacitance: 55 µF (exact match)
• Voltage Rating: 440 V (exact match)
• Tolerance: ±3% (exact match)
• Lifetime: 60,000 Hrs @ 70°C (exact match)
• Operating Temperature: -40°C ~ 70°C (exact match)
• Polarization: Polar (exact match)
• Package / Case: Radial, Can - QC Terminals (exact match)
• Mounting Type: Chassis Mount (exact match)
• Series: HCK, Motor Run (exact match)
• RoHS Status: RoHS3 Compliant (exact match)
• Moisture Sensitivity Level: 1 (Unlimited) (exact match)

Both parts are manufactured by Hartland Controls/Littelfuse and maintain Active product status. The substitute relationship is bidirectional, as indicated in the manufacturer's cross-reference data.

Parameter Comparison

Engineering Selection Recommendations

Both CAP-55/440R and CAP-55/440 are qualified for direct substitution in HVAC motor run applications. Selection between these parts is based on the following engineering criteria:

Product Status & Compliance: Both parts maintain Active product status and full RoHS3 compliance, ensuring regulatory conformance and long-term supply availability.

Electrical Specifications: The parts are electrically identical across all rated parameters, including capacitance, voltage, tolerance, and operating temperature range. No circuit performance variation is introduced through substitution.

Mechanical Compatibility: Both parts utilize identical package configurations (Radial, Can - QC Terminals) and chassis mount mounting type, ensuring direct mechanical interchangeability without board redesign or mechanical rework.

Reliability & Lifetime: Both parts are rated for 60,000 hours of operation at 70°C, providing equivalent service life expectations in HVAC applications.

Inventory Availability: CAP-55/440 currently maintains higher inventory levels (1,005 Pcs) compared to CAP-55/440R (832 Pcs), which may influence procurement decisions based on lead time requirements.

Frequently Asked Questions (FAQ)

Q: Can CAP-55/440 be used as a direct replacement for CAP-55/440R?

A: Yes. CAP-55/440 is a direct substitute for CAP-55/440R. Both parts share identical electrical specifications (55 µF, 440 V, ±3% tolerance), mechanical packaging (Radial, Can - QC Terminals), and operating characteristics (60,000 Hrs @ 70°C, -40°C ~ 70°C operating range). No circuit modifications or board rework is required.

Q: Are there any differences in the package or terminal configuration?

A: No. Both CAP-55/440R and CAP-55/440 utilize identical package configurations: Radial, Can - QC Terminals with Chassis Mount mounting type. Terminal spacing, lead configuration, and mechanical dimensions are equivalent.

Q: Do both parts meet the same compliance standards?

A: Yes. Both CAP-55/440R and CAP-55/440 are RoHS3 compliant with Moisture Sensitivity Level 1 (Unlimited). Both parts carry identical regulatory certifications and environmental compliance ratings.

Q: What is the basis for the substitution relationship?

A: Substitution is based on complete electrical and mechanical parameter equivalence. The parts are manufactured by the same supplier (Hartland Controls/Littelfuse), belong to the same motor run capacitor series (HCK), and are rated for identical HVAC applications with matching performance specifications.

Q: Can these parts be used interchangeably in existing designs?

A: Yes. The parts are fully interchangeable in existing circuit designs and PCB layouts. No design changes, component rework, or performance testing is required when substituting between CAP-55/440R and CAP-55/440.

Q: Are there any inventory or lead time considerations?

A: CAP-55/440 maintains higher current inventory (1,005 Pcs) compared to CAP-55/440R (832 Pcs). Procurement decisions may be influenced by immediate availability requirements, though both parts are classified as Active products with ongoing supply.