CSW2450P Equivalent & Substitute Parts

Part Overview

The CSW2450P 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 50A load switching capability across a 24V to 280V AC output range with zero-cross detection, controlled by a 3–32VDC input signal. The part is designated as Last Time Buy, indicating discontinued production status. Identifying equivalent and substitute parts is necessary to ensure supply chain continuity and maintain system functionality in applications requiring this switching capacity and voltage specification.

Substiute Parts

CSW2450P

Sensata-CrydomIn Stock: 1106CSW2450P Datasheet

Current PartRFQ

D2450P

Sensata-CrydomIn Stock: 896D2450P Datasheet

DirectRFQ

84138120N

CrouzetIn Stock: 95584138120N Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CSW2450P is determined by the following critical parameters:

• Circuit Configuration: Must be SPST-NO (1 Form A) to maintain identical switching topology
• Load Current: Must be rated for 50 A minimum to handle the same load
• Output Voltage Range: Must encompass or exceed the 24 V – 280 V specification
• Input Voltage Range: Must accommodate the 3 – 32 VDC control signal
• Output Type: Must support AC switching with zero-cross detection
• Package / Case: Must be hockey puck form factor for mechanical compatibility
• Termination Style: Must use screw terminals for connection compatibility
• Mounting Type: Must support chassis mount installation

Two substitute parts meet these criteria: the D2450P (Sensata-Crydom, direct manufacturer equivalent) and the 84138120N (Crouzet, manufacturer-recommended alternative). Both maintain identical circuit configuration, load current, input voltage range, output type, package form factor, termination style, and mounting type. The D2450P is an active product from the same manufacturer. The 84138120N extends the output voltage range to 24 V – 500 V, providing enhanced voltage capability while maintaining all other critical parameters.

Parameter Comparison

Engineering Selection Recommendations

The D2450P serves as the direct equivalent from Sensata-Crydom, maintaining identical electrical and mechanical specifications while offering active product status. This part is suitable for applications requiring exact parameter matching and continuity with the original CSW2450P design.

The 84138120N, recommended by the manufacturer, extends the maximum output voltage to 500V while maintaining all other critical parameters. This part is appropriate for applications where the higher voltage ceiling provides additional design margin or where system requirements may exceed the 280V specification. Both substitute parts carry active product status and RoHS compliance, ensuring regulatory alignment and supply availability.

Selection between D2450P and 84138120N depends on whether the extended voltage range of the 84138120N is beneficial or unnecessary for the specific application. The minimum input voltage of the 84138120N is 4VDC compared to 3VDC for the CSW2450P and D2450P; this difference is negligible in most industrial control applications.

Frequently Asked Questions (FAQ)

Q: Can the D2450P be used as a direct replacement for the CSW2450P?

A: Yes. The D2450P maintains identical circuit configuration (SPST-NO), load current (50A), input voltage range (3–32VDC), output voltage range (24–280V), output type (AC, zero cross), package form factor (hockey puck), termination style (screw terminal), and mounting type (chassis mount). It is a direct functional equivalent from the same manufacturer.

Q: What is the primary difference between the D2450P and the 84138120N?

A: The 84138120N extends the maximum output voltage rating to 500V compared to 280V for the D2450P. All other electrical and mechanical parameters remain equivalent. The 84138120N also specifies a minimum input voltage of 4VDC versus 3VDC for the D2450P.

Q: Is the 84138120N suitable for applications designed for the CSW2450P?

A: Yes. The 84138120N meets or exceeds all critical parameters of the CSW2450P. The higher voltage rating provides additional capability without compromising compatibility. The 1VDC difference in minimum input voltage is not a limiting factor in standard industrial control circuits.

Q: Are both substitute parts RoHS compliant?

A: The D2450P RoHS status is not specified in available documentation. The 84138120N is confirmed RoHS Compliant. If RoHS compliance is a regulatory requirement, the 84138120N is the recommended choice.

Q: Can these parts be used interchangeably in existing installations?

A: Yes, provided the mechanical mounting and electrical connections are compatible with the hockey puck package and screw terminal configuration. Both substitute parts maintain identical form factor and termination style, ensuring drop-in compatibility in applications originally designed for the CSW2450P.

Q: Why is the CSW2450P designated as Last Time Buy?

A: Last Time Buy status indicates the manufacturer has discontinued production. The D2450P and 84138120N are active products and represent the recommended path for continued supply and future designs.