D4825S Solid State Relay - Equivalent & Substitute Parts

Part Overview

The D4825S is an active, RoHS-compliant solid state relay manufactured by Sensata-Crydom. It is a SPST-NO (1 Form A) hockey puck configuration designed for chassis mount applications with AC zero-cross output switching. The device handles 25A load current across a 48V to 530V operating range with 4-32VDC input control voltage. This part is stocked and available for immediate procurement. Substitute parts may be required due to supply constraints, regional availability, or specific application requirements within the allowed electrical and mechanical parameter ranges.

Substiute Parts

D4825S

Sensata-CrydomIn Stock: 950D4825S Datasheet

Current PartRFQ

84138010N

CrouzetIn Stock: 86484138010N Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the D4825S is determined by the following critical parameters:

• Circuit Configuration: Must be SPST-NO (1 Form A)
• Output Type: Must be AC with zero-cross switching capability
• Load Current Rating: Must be 25A
• Input Voltage Range: Must accommodate 4-32VDC control signal
• Load Voltage Range: Must support operation within or encompassing the 48V-530V range
• Package / Case: Must be Hockey Puck form factor
• Mounting Type: Must be Chassis Mount
• Termination Style: Must be Screw Terminal

The substitute part 84138010N from Crouzet meets the core functional and mechanical requirements. However, the load voltage range differs: the substitute operates at 12V-270V versus the main part's 48V-530V specification. This represents a narrower upper voltage limit and should be evaluated against specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

Both the D4825S and 84138010N are active products with RoHS compliance and REACH unaffected status for the substitute. Selection between these parts should be based on the specific load voltage requirements of the application:

• D4825S: Select when load voltage operation spans 48V to 530V or when the upper voltage limit of 530V is required.
• 84138010N: Select when load voltage operation is within the 12V to 270V range and supply availability of the primary part is constrained.

Both parts share identical input voltage control range (4-32VDC), load current capacity (25A), circuit topology (SPST-NO), output switching type (AC zero-cross), and physical form factor (hockey puck chassis mount with screw terminals). The determining factor for substitution is the load voltage operating range of the target application.

Frequently Asked Questions (FAQ)

Q: Can the 84138010N substitute for the D4825S in all applications?

A: The 84138010N is functionally equivalent for applications where the load voltage remains within 12V-270V. Applications requiring operation above 270V or below 12V load voltage must use the D4825S.

Q: Are the physical dimensions and mounting interfaces identical?

A: Both parts use the hockey puck package form factor with chassis mount configuration and screw terminal termination. Physical compatibility is maintained for direct replacement in the mechanical sense.

Q: Do both parts support the same input control voltage?

A: Yes. Both the D4825S and 84138010N accept 4-32VDC input control voltage and feature AC zero-cross output switching.

Q: What is the load current capacity for both parts?

A: Both parts are rated for 25A load current.

Q: Are there compliance or certification differences between the two parts?

A: Both parts are RoHS compliant and active products. The 84138010N carries REACH unaffected status. No other compliance or certification differences are specified in the provided data.

Q: What is the primary difference between these two parts?

A: The load voltage operating range differs. The D4825S operates at 48V-530V, while the 84138010N operates at 12V-270V. All other electrical and mechanical parameters are equivalent.