A2425EG Solid State Relay - Equivalent & Substitute Parts

Part Overview

The A2425EG is a solid state relay (SSR) manufactured by Sensata Technologies, designed for SPST-NO (Single Pole Single Throw - Normally Open) switching applications. This active product operates with AC input voltage (18-36VAC) and controls AC loads up to 25A at 24-280V with zero-cross switching capability. The hockey puck form factor with screw terminal connections is standard for industrial chassis-mount applications. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to availability, supply chain considerations, or design standardization needs.

Substiute Parts

A2425EG

Sensata TechnologiesIn Stock: 742A2425EG Datasheet

Current PartRFQ

84137910N

CrouzetIn Stock: 76884137910N Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The A2425EG can be substituted with the Crouzet 84137910N based on the following critical parameters that determine functional equivalence:

• Circuit Configuration: Both parts are SPST-NO (1 Form A) relays with identical switching topology
• Load Specifications: Both handle 25A load current across the 24-280V range with AC, zero-cross output type
• Mechanical Form Factor: Both use hockey puck package with screw terminal connections and chassis mount configuration
• Compliance: Both are RoHS Compliant and carry EAR99 ECCN classification

The primary difference is input voltage specification: the A2425EG accepts 18-36VAC input, while the 84137910N accepts 4-32VDC input. This distinction determines application suitability based on control signal source availability.

Parameter Comparison

Engineering Selection Recommendations

Both the A2425EG and 84137910N are active products with RoHS compliance and equivalent load-switching specifications. Selection between these parts is determined by control signal availability:

• A2425EG: Select when AC control voltage (18-36VAC) is available from the system power source
• 84137910N: Select when DC control voltage (4-32VDC) is available from the system control circuit

Both parts meet industrial compliance requirements and are suitable for direct substitution in applications where the corresponding input voltage specification matches the control signal source. Mechanical compatibility is assured through identical hockey puck form factor and screw terminal interface.

Frequently Asked Questions (FAQ)

Q: Can the A2425EG and 84137910N be used interchangeably?

A: These parts are functionally equivalent for load switching (25A, 24-280V AC with zero-cross control) and mechanical form factor. However, they require different input voltage sources: A2425EG requires 18-36VAC, while 84137910N requires 4-32VDC. Selection depends on available control voltage in your application.

Q: What does "zero-cross" output type mean?

A: Zero-cross switching synchronizes relay activation to the AC voltage zero-crossing point, reducing electromagnetic interference and switching transients in AC load applications.

Q: Are both parts RoHS compliant?

A: Yes, both A2425EG and 84137910N are RoHS Compliant, meeting environmental and hazardous substance restrictions for industrial applications.

Q: What is the hockey puck package?

A: The hockey puck is a cylindrical form factor commonly used for solid state relays in industrial applications. It provides compact chassis mounting with screw terminal connections for power and control circuits.

Q: Can these relays handle DC loads?

A: No, both relays are specified for AC loads only (24-280V AC). The output type designation "AC, Zero Cross" indicates AC load compatibility exclusively.