CMA48110 Equivalent & Substitute Parts

Part Overview

The CMA48110 is a solid-state relay (SSR) with SPST-NO (1 Form A) configuration, designed for AC load switching applications. Manufactured by Sensata-Crydom, this hockey puck-style relay operates with input voltage of 90–140VAC and supports load voltages from 48V to 530V at 110A continuous current. The device features zero-cross switching for AC output and screw terminal connections for chassis-mount installation. The part is currently active in production with RoHS compliance and is suitable for industrial control, heating, and motor control applications. Equivalent parts may be required due to inventory constraints, application-specific voltage requirements, or higher current capacity needs.

Substiute Parts

CMA48110

Sensata-CrydomIn Stock: 1161CMA48110 Datasheet

Current PartRFQ

CWA48125

Sensata TechnologiesIn Stock: 815CWA48125 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The CWA48125 is qualified as a manufacturer-recommended substitute for the CMA48110 based on the following substitution criteria:

Compatible Parameters:

• Circuit configuration: Both are SPST-NO (1 Form A) relays
• Output type: Both feature AC output with zero-cross switching
• Mounting type: Both are chassis-mount hockey puck packages
• Termination style: Both use screw terminals
• RoHS compliance: Both are RoHS compliant
• ECCN and HTSUS classifications: Identical regulatory codes

Enhanced Specifications:

• Load current: CWA48125 rated at 125A (vs. 110A for CMA48110), providing 13.6% higher current capacity
• Load voltage range: CWA48125 supports 48V–660V (vs. 48V–530V for CMA48110), extending maximum voltage capability by 130V
• Input voltage: CWA48125 accepts 90–280VAC (vs. 90–140VAC for CMA48110), providing wider input voltage tolerance

The CWA48125 operates within the same functional category and physical form factor, making it suitable for direct substitution in applications where the enhanced current and voltage ratings do not create design conflicts.

Parameter Comparison

Engineering Selection Recommendations

Both the CMA48110 and CWA48125 are active production components with RoHS compliance and identical regulatory classifications (ECCN: EAR99; HTSUS: 8536.49.0080). Selection between these parts should be based on application requirements:

Select CMA48110 when:

• Load current requirement is 110A or less
• Maximum load voltage does not exceed 530V
• Input voltage supply is limited to 90–140VAC range
• Original design specification calls for CMA48 series

Select CWA48125 when:

• Load current requirement exceeds 110A up to 125A
• Application requires load voltage capability up to 660V
• Input voltage supply ranges from 90–280VAC
• Design allows for CW48 series substitution
• Higher current capacity provides design margin for future application scaling

Both parts maintain identical form factor, mounting configuration, and switching characteristics, ensuring mechanical and electrical compatibility within the specified parameter ranges.

Frequently Asked Questions (FAQ)

Q: Can CWA48125 be used as a direct replacement for CMA48110?

A: Yes, the CWA48125 is manufacturer-recommended as a substitute. Both parts share identical circuit configuration (SPST-NO), output type (AC, zero-cross), mounting type (chassis mount), package style (hockey puck), and termination method (screw terminal). The CWA48125 provides enhanced current and voltage ratings, making it suitable for direct substitution provided the application does not have constraints that would be negatively affected by these higher specifications.

Q: What are the key differences between CMA48110 and CWA48125?

A: The primary differences are: (1) Load current rating: CWA48125 is rated for 125A versus 110A for CMA48110; (2) Load voltage range: CWA48125 supports 48V–660V versus 48V–530V for CMA48110; (3) Input voltage tolerance: CWA48125 accepts 90–280VAC versus 90–140VAC for CMA48110; (4) Series designation: CMA48 versus CW48.

Q: Are there any mechanical compatibility issues when substituting CWA48125 for CMA48110?

A: No. Both parts use identical hockey puck package style, chassis-mount configuration, and screw terminal termination. Physical dimensions and mounting interfaces are compatible, allowing for direct mechanical substitution without modification to the installation hardware or PCB layout.

Q: Do both parts meet the same compliance standards?

A: Yes. Both CMA48110 and CWA48125 are RoHS compliant and share identical ECCN (EAR99) and HTSUS (8536.49.0080) classifications, ensuring equivalent regulatory compliance for export and domestic applications.

Q: Which part should be selected for a new design?

A: Selection depends on application load current and voltage requirements. If the application requires 110A or less at voltages up to 530V with input voltage limited to 90–140VAC, either part is suitable. If higher current capacity (up to 125A), extended voltage range (up to 660V), or wider input voltage tolerance (up to 280VAC) is beneficial, the CWA48125 is the preferred choice for new designs.