CMA24125 Equivalent & Substitute Parts

Part Overview

The CMA24125 is a solid-state relay (SSR) with SPST-NO (1 Form A) configuration rated for 125A load current and 24–280V output voltage. This component is classified as obsolete, necessitating identification of active equivalent parts that maintain identical electrical and mechanical specifications. Substitute parts must preserve the core functional parameters: 125A load capacity, 24–280V load voltage range, 90–140VAC input voltage, AC zero-cross output type, screw terminal termination, and hockey puck chassis mount package.

Substiute Parts

CMA24125

Sensata-CrydomIn Stock: 868CMA24125 Datasheet

Current PartRFQ

84137081

Sensata-CrydomIn Stock: 125884137081 Datasheet

MFR RecommendedRFQ

A24125

Sensata-CrydomIn Stock: 1156A24125 Datasheet

MFR RecommendedRFQ

CWA24125

Sensata-CrydomIn Stock: 909CWA24125 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict equivalence across the following parameters:

• Load Current Rating: 125 A (exact match required)
• Load Voltage Range: 24 V – 280 V (exact match required)
• Circuit Configuration: SPST-NO (1 Form A) (exact match required)
• Output Type: AC, Zero Cross (exact match required)
• Package / Case: Hockey Puck (exact match required)
• Termination Style: Screw Terminal (exact match required)
• Mounting Type: Chassis Mount (exact match required)
• Manufacturer: Sensata-Crydom (exact match required)
• RoHS Compliance: RoHS Compliant (exact match required)

All three substitute parts (84137081, A24125, CWA24125) meet these criteria and are classified as active products, making them direct functional equivalents to the obsolete CMA24125.

Parameter Comparison

Engineering Selection Recommendations

All three substitute parts are manufacturer-recommended equivalents and are classified as active products, ensuring ongoing availability and support. The CMA24125 is obsolete and should be replaced with one of the following active alternatives:

• 84137081 (GN Series): Manufacturer-recommended primary substitute with expanded input voltage range (90–280VAC) and MSL rating of 1 (Unlimited). Highest inventory availability at 1168 units.

• A24125 (1-110/125A Series): Active equivalent with expanded input voltage range (90–280VAC). Inventory availability at 1081 units.

• CWA24125 (CW24 Series): Active equivalent with expanded input voltage range (90–280VAC). Inventory availability at 885 units.

All three parts maintain identical load current, load voltage, circuit configuration, output type, package, termination, and mounting specifications. Selection among these three substitutes may be based on series preference, inventory availability, or supply chain considerations, as all are functionally equivalent for the CMA24125 application.

Frequently Asked Questions (FAQ)

Q: Can CMA24125 be directly replaced with any of these substitute parts?

A: Yes. All three substitute parts (84137081, A24125, CWA24125) are direct functional equivalents. They maintain identical load current (125A), load voltage range (24–280V), circuit configuration (SPST-NO), output type (AC, zero cross), package (hockey puck), termination (screw terminal), and mounting type (chassis mount).

Q: What is the primary difference between the CMA24125 and its substitutes?

A: The CMA24125 is obsolete with a restricted input voltage range of 90–140VAC. All three active substitutes expand the input voltage range to 90–280VAC, providing greater operational flexibility while maintaining all other electrical and mechanical specifications.

Q: Are there any compatibility concerns when switching from CMA24125 to a substitute part?

A: No compatibility concerns exist for applications within the specified parameters. The hockey puck chassis mount package, screw terminal configuration, and electrical ratings are identical across all parts. Direct mechanical and electrical substitution is possible.

Q: Which substitute part should be selected?

A: Selection among 84137081, A24125, and CWA24125 depends on supply chain availability, series preference, or inventory requirements. All three are functionally equivalent and manufacturer-recommended. 84137081 is the manufacturer-recommended primary substitute.

Q: Are all substitute parts RoHS compliant?

A: Yes. All substitute parts (84137081, A24125, CWA24125) are RoHS compliant, matching the compliance status of the original CMA24125.