SMR2425 Solid State Relay - Equivalent & Substitute Parts

Part Overview

The SMR2425 is a solid state relay (SSR) with SPST-NO (1 Form A) configuration, rated for 25A load current at 60-280V AC output. This component features zero-cross switching capability and operates with 8-32VDC input control voltage. The SMR2425 is classified as obsolete, making identification of active equivalent parts essential for ongoing system support and new design implementations.

Substiute Parts

SMR2425

Sensata TechnologiesIn Stock: 1069SMR2425 Datasheet

Current PartRFQ

SMR2425-6

Sensata-CrydomIn Stock: 853SMR2425-6 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

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

• Load Current Rating: 25A (exact match required)
• Output Voltage Range: 60-280V AC (exact match required)
• Input Control Voltage: 8-32VDC (exact match required)
• Circuit Configuration: SPST-NO (1 Form A) (exact match required)
• Output Switching Type: AC with Zero Cross capability (exact match required)
• Package Form Factor: Hockey Puck chassis mount with screw terminals (exact match required)

The SMR2425-6 qualifies as a direct substitute based on matching all critical electrical and mechanical parameters. This part represents an active product variant within the SMR24 series family, providing functional continuity for applications currently using the obsolete SMR2425.

Parameter Comparison

Engineering Selection Recommendations

The SMR2425-6 is the designated active equivalent for the obsolete SMR2425. Selection of the SMR2425-6 is supported by:

• Product Status Alignment: The SMR2425-6 maintains active product status, ensuring ongoing manufacturer support and availability.
• Regulatory Compliance: Both parts share identical REACH and ECCN classifications, maintaining compliance posture across supply chain transitions.
• Electrical Specification Continuity: All critical electrical parameters—input voltage, load voltage range, current rating, and switching characteristics—are identical between the two parts.
• Physical Form Factor Compatibility: Identical chassis mount configuration, screw terminal termination, and hockey puck package ensure mechanical interchangeability in existing designs.

Frequently Asked Questions (FAQ)

Q: Can SMR2425-6 be used as a direct replacement for SMR2425 in existing applications?

A: Yes. The SMR2425-6 matches all critical electrical and mechanical parameters of the SMR2425, including 25A load current, 60-280V AC output voltage range, 8-32VDC input control voltage, zero-cross AC switching, and hockey puck chassis mount configuration with screw terminals.

Q: What is the primary reason for substitution?

A: The SMR2425 is classified as obsolete. The SMR2425-6 is the active equivalent within the SMR24 series family, providing functional continuity and ongoing manufacturer support.

Q: Are there any compliance differences between SMR2425 and SMR2425-6?

A: No. Both parts share identical REACH and ECCN classifications (REACH Unaffected, EAR99), maintaining regulatory compliance across the substitution.

Q: Does the package form factor differ between these parts?

A: No. Both parts use identical hockey puck chassis mount packages with screw terminal termination, ensuring mechanical interchangeability.

Q: What parameters must match exactly for substitution eligibility?

A: Load current (25A), output voltage range (60-280V AC), input control voltage (8-32VDC), circuit configuration (SPST-NO), switching type (AC with zero cross), and package form factor (hockey puck with screw terminals) must all match exactly.