CSW2425P Solid State Relay - Equivalent & Substitute Parts

Part Overview

The CSW2425P is a solid state relay (SSR) manufactured by Sensata-Crydom, classified as a SPST-NO (Single Pole Single Throw - Normally Open) device with a 25A load capacity and operating voltage range of 24V to 280V. This component features a hockey puck form factor with screw terminal connections and zero-cross AC output switching. The CSW2425P is designated as Last Time Buy, indicating discontinued production status. Identifying equivalent substitute parts is necessary to ensure continued availability for maintenance, repair, and new system designs requiring this functional specification.

Key Parameters

Parameter	Value
Circuit Configuration	SPST-NO (1 Form A)
Load Current Rating	25 A
Load Voltage Range	24 V ~ 280 V
Input Voltage Range	3 ~ 32 VDC
Output Type	AC, Zero Cross
Mounting Type	Chassis Mount
Package / Case	Hockey Puck
Termination Style	Screw Terminal
Product Status	Last Time Buy

Substitute Part Grouping Explanation

Substitution eligibility for the CSW2425P is determined by the following critical parameters:

Circuit Configuration: Must be SPST-NO (1 Form A)
Load Current Rating: Must be 25 A minimum
Load Voltage Range: Must encompass or exceed 24 V ~ 280 V
Input Voltage Range: Must support 3 ~ 32 VDC operation
Output Type: Must be AC with zero-cross switching
Package Form Factor: Must be hockey puck configuration
Termination: Must use screw terminal connections
Mounting: Must support chassis mount installation

Three substitute parts meet these criteria: D2425P (Sensata-Crydom), 84138010N (Crouzet), and ASR-SI240D25ZW-LM (Altran Magnetics, LLC). Each maintains functional equivalence within the specified electrical and mechanical parameters.

Parameter Comparison

Parameter	CSW2425P	D2425P	84138010N	ASR-SI240D25ZW-LM
Manufacturer	Sensata-Crydom	Sensata-Crydom	Crouzet	Altran Magnetics, LLC
Circuit Configuration	SPST-NO (1 Form A)	SPST-NO (1 Form A)	SPST-NO (1 Form A)	SPST-NO (1 Form A)
Load Current Rating	25 A	25 A	25 A	25 A
Load Voltage Range	24 V ~ 280 V	24 V ~ 280 V	12 V ~ 270 V	48 V ~ 280 V
Input Voltage Range	3 ~ 32 VDC	3 ~ 32 VDC	4 ~ 32 VDC	4 ~ 32 VDC
Output Type	AC, Zero Cross	AC, Zero Cross	AC, Zero Cross	AC, Zero Cross
Mounting Type	Chassis Mount	Chassis Mount	Chassis Mount	Chassis Mount
Package / Case	Hockey Puck	Hockey Puck	Hockey Puck	Hockey Puck
Termination Style	Screw Terminal	Screw Terminal	Screw Terminal	Screw Terminal
Product Status	Last Time Buy	Active	Active	Active
RoHS Status	RoHS Compliant	ROHS3 Compliant	RoHS Compliant	ROHS3 Compliant

Engineering Selection Recommendations

D2425P (Sensata-Crydom) provides the closest functional match to the CSW2425P. Both parts are manufactured by Sensata-Crydom and share identical electrical specifications across all critical parameters. The D2425P is currently in active production status with ROHS3 compliance and REACH affected designation. This option is preferred for direct replacement applications where manufacturer continuity and identical specifications are required.

84138010N (Crouzet) is an active production alternative with RoHS compliance. The load voltage range extends to 12V minimum (versus 24V for the CSW2425P), providing broader low-voltage capability. The input voltage range begins at 4VDC (versus 3VDC). This part is suitable for applications where the 12V lower bound is acceptable and REACH unaffected status is advantageous.

ASR-SI240D25ZW-LM (Altran Magnetics, LLC) is an active production option with ROHS3 compliance and REACH unaffected status. The load voltage range begins at 48V, making it suitable only for applications operating at 48V or higher. The input voltage range begins at 4VDC. This part is appropriate for higher-voltage load applications where the 48V minimum threshold aligns with system requirements.

Frequently Asked Questions (FAQ)

Q: Can D2425P be used as a direct replacement for CSW2425P?

A: Yes. The D2425P shares identical electrical specifications with the CSW2425P across all critical parameters: 25A load current, 24V–280V load voltage range, 3–32VDC input voltage range, SPST-NO circuit configuration, AC zero-cross output, hockey puck package, and screw terminal termination. Both are manufactured by Sensata-Crydom.

Q: What is the key difference between 84138010N and the CSW2425P?

A: The 84138010N has a minimum load voltage of 12V compared to 24V for the CSW2425P, and a minimum input voltage of 4VDC versus 3VDC. All other parameters are equivalent. The 84138010N is manufactured by Crouzet and is REACH unaffected.

Q: Is ASR-SI240D25ZW-LM suitable for all applications using CSW2425P?

A: No. The ASR-SI240D25ZW-LM has a minimum load voltage of 48V, making it incompatible with applications requiring operation below 48V. It is suitable only for systems with load voltages of 48V or higher. The input voltage range begins at 4VDC.

Q: What compliance certifications should I verify for my application?

A: All substitute parts are RoHS compliant. D2425P and ASR-SI240D25ZW-LM carry ROHS3 certification. The CSW2425P and 84138010N are RoHS compliant. D2425P is REACH affected; 84138010N and ASR-SI240D25ZW-LM are REACH unaffected. Verify compliance requirements against your specific application and regional regulations.

Q: Are all substitute parts available in the same packaging format?

A: All substitute parts use hockey puck form factor with screw terminal connections and chassis mount configuration. CSW2425P is supplied in bulk packaging; D2425P, 84138010N, and ASR-SI240D25ZW-LM are supplied in box packaging.

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