Sensata-Crydom A2425S Solid State Relay - Equivalent & Substitute Parts

Part Overview

The Sensata-Crydom A2425S is an active, production-status solid state relay (SSR) designed for industrial switching applications. This SPST-NO (1 Form A) relay operates with AC zero-cross output capability and supports load voltages from 24V to 280V at 25A continuous current. The hockey puck form factor with screw terminal connections makes it suitable for chassis-mounted installations. Equivalent and substitute parts are identified to provide procurement flexibility, inventory management options, and supply chain continuity for applications requiring compatible SPST-NO solid state relay functionality.

Substiute Parts

A2425S

Sensata-CrydomIn Stock: 824A2425S Datasheet

Current PartRFQ

84138013N

CrouzetIn Stock: 80084138013N Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the A2425S are identified based on strict electrical and mechanical parameter compatibility. The primary substitution criteria are:

• Circuit configuration: SPST-NO (1 Form A) topology
• Output switching capability: AC with zero-cross detection
• Load current rating: 25A minimum
• Load voltage range: Minimum 24V to maximum 280V operation
• Package form factor: Hockey puck configuration
• Termination interface: Screw terminal connections
• Mounting orientation: Chassis mount capability
• Regulatory compliance: RoHS compliance status

The Crouzet 84138013N meets these core electrical and mechanical requirements, enabling direct functional substitution in applications designed for the A2425S.

Parameter Comparison

Engineering Selection Recommendations

Both the Sensata-Crydom A2425S and Crouzet 84138013N are active production components with RoHS compliance certification. Selection between these parts should be based on application-specific input voltage requirements and load voltage operating windows. The A2425S supports input voltage from 90VAC to 280VAC, while the 84138013N accepts input from 20VAC to 265VAC/DC, providing broader low-voltage input capability. Load voltage operating ranges differ slightly: the A2425S operates from 24V to 280V, while the 84138013N operates from 12V to 270V. Both components maintain identical 25A load current capacity and identical circuit topology, output switching characteristics, and physical form factor specifications.

Frequently Asked Questions (FAQ)

Q: Can the Crouzet 84138013N directly replace the Sensata-Crydom A2425S in existing applications?

A: Direct substitution is possible when the application input voltage falls within the 20VAC to 265VAC/DC range and load voltage operates between 12V and 270V. If the application requires input voltages above 265VAC or load voltages above 270V, the A2425S specifications must be maintained.

Q: What are the key electrical differences between these two parts?

A: The primary differences are input voltage range (A2425S: 90-280VAC versus 84138013N: 20-265VAC/DC) and load voltage range (A2425S: 24-280V versus 84138013N: 12-270V). Both parts share identical load current capacity (25A), circuit configuration (SPST-NO), and output switching type (AC, zero-cross).

Q: Are both parts physically compatible with existing mounting hardware?

A: Yes. Both components use identical hockey puck form factor packaging, chassis mount orientation, and screw terminal termination style, ensuring mechanical compatibility with existing installation infrastructure.

Q: Do both parts meet the same regulatory compliance standards?

A: Both the A2425S and 84138013N are RoHS compliant and carry EAR99 ECCN classification. The 84138013N additionally carries REACH Unaffected status.

Q: Which part should be selected for new designs?

A: Selection should be based on the specific input and load voltage requirements of the application. If input voltage may drop below 90VAC or load voltage may drop below 24V, the 84138013N provides broader operating range capability. For applications requiring input voltages above 265VAC or load voltages above 270V, the A2425S is required.