CAP-20/440R Equivalent & Substitute Parts

Part Overview

The CAP-20/440R is a 20 µF, 440 V aluminum electrolytic capacitor with radial, can-style QC terminals manufactured by Hartland Controls/Littelfuse. This component is designed for motor run applications in HVAC systems, offering a rated lifetime of 60,000 hours at 70°C. The part is currently discontinued at DiGi Electronics, necessitating identification of equivalent alternatives that maintain identical electrical and mechanical specifications for direct replacement in existing installations.

Substiute Parts

CAP-20/440R

Hartland Controls/LittelfuseIn Stock: 1141CAP-20/440R Datasheet

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CAP-20/440

Hartland Controls/LittelfuseIn Stock: 888CAP-20/440 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the CAP-20/440R is determined by strict equivalence across the following critical parameters:

• Capacitance Value: 20 µF (exact match required)
• Voltage Rating: 440 V (exact match required)
• Tolerance: ±3% (exact match required)
• Lifetime Specification: 60,000 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)

The CAP-20/440 qualifies as a direct substitute based on identical electrical ratings, thermal characteristics, mechanical configuration, and application classification. The primary distinction is product status: CAP-20/440R is discontinued, while CAP-20/440 remains active in production.

Parameter Comparison

Engineering Selection Recommendations

The CAP-20/440 is the direct equivalent substitute for the discontinued CAP-20/440R. Both components are manufactured by Hartland Controls/Littelfuse and share identical electrical specifications, thermal ratings, mechanical configuration, and application classification. The CAP-20/440 maintains active product status and is available in production quantities, making it the appropriate selection for replacement applications requiring the CAP-20/440R specification.

Selection of CAP-20/440 is based on:

• Identical capacitance, voltage, and tolerance ratings
• Matching thermal lifetime and operating temperature specifications
• Identical package configuration and mounting type
• Same series classification for motor run HVAC applications
• Equivalent compliance certifications (ECCN: EAR99, MSL: 1)
• Active availability from the original manufacturer

Frequently Asked Questions (FAQ)

Q: Can CAP-20/440 be used as a direct replacement for CAP-20/440R?

A: Yes. The CAP-20/440 is a direct equivalent substitute. Both components share identical electrical ratings (20 µF, 440 V, ±3%), thermal specifications (60,000 Hrs @ 70°C), operating temperature range (-40°C ~ 70°C), package configuration (Radial, Can - QC Terminals), and mounting type (Chassis Mount). The primary difference is product status: CAP-20/440R is discontinued, while CAP-20/440 is active.

Q: What are the critical parameters that determine substitution eligibility?

A: Substitution eligibility is determined by exact equivalence across capacitance value (20 µF), voltage rating (440 V), tolerance (±3%), lifetime specification (60,000 Hrs @ 70°C), operating temperature range (-40°C ~ 70°C), package type (Radial, Can - QC Terminals), mounting type (Chassis Mount), polarization (Polar), and series classification (HCK, Motor Run). Any deviation in these parameters disqualifies a component from direct substitution.

Q: Are there packaging differences between CAP-20/440R and CAP-20/440?

A: The electrical and mechanical specifications are identical. The CAP-20/440R was supplied with standard packaging, while the CAP-20/440 is supplied in Box packaging. This packaging difference does not affect component performance or compatibility in the application.

Q: What applications are these capacitors suitable for?

A: Both CAP-20/440R and CAP-20/440 are classified for HVAC applications, specifically as motor run capacitors in the HCK series. They are designed for use in motor run circuits requiring 20 µF capacitance at 440 V with extended thermal life.

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

A: Both components operate across a temperature range of -40°C to 70°C, with a rated lifetime of 60,000 hours at 70°C. This specification applies equally to CAP-20/440R and CAP-20/440.