CSW2425KP Solid State Relay - Equivalent & Substitute Parts

Part Overview

The CSW2425KP is a solid state relay (SSR) manufactured by Sensata-Crydom, designed for SPST-NO (Single Pole Single Throw - Normally Open) switching applications. This component operates as a 1 Form A relay with AC output capability and zero-cross switching functionality. The part is rated for 25A load current with input voltage range of 3–32VDC and load voltage range of 24–280V. The CSW2425KP is currently classified as obsolete, which necessitates identification of active equivalent alternatives for ongoing procurement and system maintenance.

Substiute Parts

CSW2425KP

Sensata-CrydomIn Stock: 850CSW2425KP Datasheet

Current PartRFQ

D2425KP

Sensata-CrydomIn Stock: 865D2425KP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CSW2425KP is determined by strict equivalence across the following critical parameters:

• Circuit configuration: SPST-NO (1 Form A)
• Output type: AC with zero-cross switching
• Load current rating: 25 A
• Input voltage range: 3–32 VDC
• Load voltage range: 24–280 V
• Package type: Hockey Puck
• Termination style: Screw Terminal
• Mounting type: Chassis Mount
• RoHS compliance status

The D2425KP meets all substitution criteria. This part maintains identical electrical specifications and mechanical form factor while offering active product status, ensuring continued availability and manufacturer support.

Parameter Comparison

Engineering Selection Recommendations

The D2425KP is the direct equivalent for CSW2425KP applications. Both parts are RoHS compliant and manufactured by Sensata-Crydom. The primary distinction is product status: CSW2425KP is obsolete while D2425KP maintains active status. For new designs and ongoing procurement, D2425KP is the appropriate selection. For existing systems currently using CSW2425KP, direct substitution with D2425KP is electrically and mechanically compatible without design modification.

Frequently Asked Questions (FAQ)

Q: Can D2425KP directly replace CSW2425KP in existing applications?

A: Yes. Both parts share identical electrical ratings (25A load current, 3–32VDC input, 24–280V load voltage), circuit configuration (SPST-NO), output type (AC with zero-cross switching), and mechanical form factor (Hockey Puck, screw terminal, chassis mount). Direct substitution is compatible.

Q: Why is CSW2425KP classified as obsolete?

A: Product obsolescence is determined by manufacturer lifecycle decisions. The D2425KP represents the active equivalent within the Sensata-Crydom product line.

Q: Are there differences in RoHS compliance between these parts?

A: Both CSW2425KP and D2425KP are RoHS compliant. No compliance-related restrictions apply to substitution.

Q: What is the significance of the Hockey Puck package type?

A: The Hockey Puck package is a specific mechanical form factor for solid state relays designed for chassis mount applications with screw terminal connections. Both parts use this identical package, ensuring mechanical compatibility in existing mounting configurations.

Q: Does the zero-cross switching feature apply to both parts?

A: Yes. Both CSW2425KP and D2425KP incorporate zero-cross switching for AC output applications, providing identical switching characteristics.