SMR2425-6 Equivalent & Substitute Parts

Part Overview

The SMR2425-6 is a solid state relay (SSR) manufactured by Sensata-Crydom, classified as a hockey puck form factor device designed for chassis mount applications. This active product functions as an AC output relay with zero-cross switching capability, rated for 25A load current across a 60V to 280V operating range. The device accepts 8-32VDC input control signals and features screw terminal connections.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter ranges of this product category.

Substiute Parts

SMR2425-6

Sensata-CrydomIn Stock: 853SMR2425-6 Datasheet

Current PartRFQ

84139150N

CrouzetIn Stock: 75484139150N Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SMR2425-6 is determined by the following critical parameters:

• Output Type: AC with zero-cross switching capability
• Package Form Factor: Hockey puck chassis mount configuration
• Termination: Screw terminal connections
• Input Control Voltage Range: Compatibility within 8-32VDC specification
• Load Voltage Range: Overlap within 60-280V operating window
• Load Current Rating: Equal to or greater than 25A capacity
• Compliance Status: Active product status with equivalent regulatory certifications

The identified substitute must maintain mechanical interchangeability through identical package geometry and mounting interface, while supporting the same control signal voltage and output switching characteristics.

Parameter Comparison

Engineering Selection Recommendations

The SMR2425-6 and 84139150N share identical mechanical packaging, mounting configuration, and termination methodology, enabling direct physical interchangeability in chassis mount applications. Both devices maintain active product status with equivalent regulatory compliance across RoHS, REACH, and ECCN classifications.

The 84139150N provides increased load current capacity at 35A versus the SMR2425-6 at 25A, supporting higher power switching applications. Input voltage compatibility exists within the overlapping 8-30VDC range. Load voltage operating windows overlap substantially between 60-265V, with the SMR2425-6 extending to 280V maximum.

Selection between these parts depends on application-specific load current requirements and maximum load voltage specifications. Both devices satisfy AC zero-cross switching functionality and screw terminal connection requirements.

Frequently Asked Questions (FAQ)

Q: Can the 84139150N directly replace the SMR2425-6 in existing designs?

A: Physical and electrical interchangeability exists for applications operating within the overlapping parameter ranges: input voltage 8-30VDC, load voltage 60-265V, and load current up to 25A. Applications requiring the full 280V load voltage capability or exceeding 25A load current must be evaluated against the 84139150N specifications.

Q: What are the key differences between these two SSR relay models?

A: The primary differences are load current rating (SMR2425-6: 25A; 84139150N: 35A) and maximum load voltage (SMR2425-6: 280V; 84139150N: 265V). Input voltage ranges differ slightly (SMR2425-6: 8-32VDC; 84139150N: 8-30VDC). Both maintain identical hockey puck package geometry, chassis mount configuration, and screw terminal termination.

Q: Are both parts RoHS and REACH compliant?

A: Yes. The SMR2425-6 is ROHS3 Compliant and REACH Unaffected. The 84139150N is RoHS Compliant and REACH Unaffected. Both carry EAR99 ECCN classification.

Q: What is the significance of the hockey puck package form factor?

A: The hockey puck package defines the mechanical envelope, mounting interface, and thermal characteristics. Both the SMR2425-6 and 84139150N utilize identical hockey puck geometry, ensuring mechanical interchangeability in chassis mount applications without modification to mounting hardware or thermal management systems.

Q: How do zero-cross switching characteristics affect application compatibility?

A: Zero-cross switching synchronizes relay activation with AC voltage zero-crossing points, reducing electromagnetic interference and switching transients. Both the SMR2425-6 and 84139150N implement this switching methodology, maintaining functional equivalence for AC load control applications.