CSW2425K Solid State Relay - Equivalent & Substitute Parts

Part Overview

The CSW2425K is a solid state relay (SSR) manufactured by Sensata-Crydom, configured as a SPST-NO (1 Form A) device in a hockey puck package. It provides 25A switching capacity for AC loads operating between 24V and 280V, with DC input control voltage ranging from 3V to 32V. The CSW2425K is classified as Last Time Buy, indicating production discontinuation. Identifying equivalent substitute parts ensures continued availability for maintenance, repair, and new system designs requiring this relay topology and electrical specification.

Substiute Parts

CSW2425K

Sensata-CrydomIn Stock: 1183CSW2425K Datasheet

Current PartRFQ

D2425K

Sensata-CrydomIn Stock: 735D2425K Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CSW2425K is determined by strict equivalence across the following electrical and mechanical parameters:

• Circuit configuration: SPST-NO (1 Form A) topology
• Output type: AC with zero-cross switching
• Input voltage range: 3 ~ 32VDC
• Load voltage range: 24 V ~ 280 V
• Load current capacity: 25 A
• Termination: Screw terminal connection
• Package form factor: Hockey puck chassis mount

The D2425K qualifies as a direct substitute based on identical electrical specifications and mechanical compatibility. Both devices share the same control voltage, load voltage, current rating, and physical package configuration. The primary distinction is product status: CSW2425K is Last Time Buy, while D2425K maintains Active status.

Parameter Comparison

Engineering Selection Recommendations

The D2425K is the qualified substitute for the CSW2425K. Both devices are manufactured by Sensata-Crydom and provide identical electrical performance and mechanical interface. The D2425K offers the advantage of Active product status, ensuring continued availability and supply chain stability. The D2425K carries ROHS3 compliance, representing an enhanced environmental standard compared to the CSW2425K's RoHS compliance. Both devices are REACH Affected and carry EAR99 export classification. Selection of the D2425K eliminates obsolescence risk associated with the CSW2425K's Last Time Buy designation.

Frequently Asked Questions (FAQ)

Q: Can the D2425K directly replace the CSW2425K in existing applications?

A: Yes. Both relays share identical electrical specifications (3~32VDC input, 24~280V load, 25A capacity) and mechanical configuration (hockey puck package, screw terminals, chassis mount). No circuit modifications are required.

Q: What is the significance of the CSW2425K's Last Time Buy status?

A: Last Time Buy indicates the manufacturer has discontinued production. The CSW2425K will not be replenished once current inventory is exhausted. The D2425K, with Active status, provides long-term supply continuity.

Q: Are there compliance differences between these relays?

A: Both devices are RoHS compliant. The D2425K carries ROHS3 certification, representing a more recent environmental compliance standard. Both are REACH Affected. This distinction does not affect electrical or mechanical compatibility.

Q: What parameters must remain constant for substitution?

A: Circuit topology (SPST-NO), output type (AC zero-cross), input voltage range (3~32VDC), load voltage range (24~280V), current rating (25A), termination style (screw), and package form (hockey puck) must all match. Deviation in any parameter disqualifies substitution.

Q: Is the hockey puck package critical for substitution?

A: Yes. The hockey puck form factor defines the physical mounting interface and thermal characteristics. Substitutes must maintain identical package geometry and mounting type (chassis mount) to ensure mechanical fit and thermal performance.