CWD48125S Equivalent & Substitute Parts

Part Overview

The CWD48125S is a solid-state relay (SSR) manufactured by Sensata-Crydom, designed for single-pole single-throw normally-open (SPST-NO) switching applications. This component operates as a 1 Form A relay with AC zero-cross output capability, rated for 125A load current across a 48V to 660V operating range. The CWD48125S is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system maintenance and new design implementations.

Substiute Parts

CWD48125S

Sensata-CrydomIn Stock: 1015CWD48125S Datasheet

Current PartRFQ

CWD48125P

Sensata-CrydomIn Stock: 20287CWD48125P Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CWD48125S is determined by strict equivalence across the following critical parameters:

• Circuit configuration: SPST-NO (1 Form A) topology
• Output type: AC with zero-cross switching capability
• Input voltage specification: 4 ~ 32 VDC control range
• Load voltage specification: 48 V ~ 660 V operating range
• Current rating: 125 A continuous load capacity
• Mounting and termination: Chassis mount with screw terminal interface
• Package form factor: Hockey Puck housing

The CWD48125P is identified as the manufacturer-recommended substitute. Both components share identical electrical specifications and mechanical form factors within the CW48 series, with the primary distinction being product status and packaging configuration.

Parameter Comparison

Engineering Selection Recommendations

The CWD48125P is the direct functional equivalent for the obsolete CWD48125S. Selection of the CWD48125P is supported by:

• Identical electrical performance across all specified voltage and current parameters
• Matching mechanical form factor and mounting interface
• Active product status ensuring ongoing availability and supply chain continuity
• ROHS3 compliance, meeting current environmental and regulatory standards
• Manufacturer designation as the recommended substitute within the CW48 series

For applications currently utilizing the CWD48125S, transition to the CWD48125P presents no functional or mechanical incompatibility. The substitute maintains full compatibility with existing circuit designs, mounting hardware, and control signal specifications.

Frequently Asked Questions (FAQ)

Q: Can the CWD48125P directly replace the CWD48125S in existing applications?

A: Yes. Both components share identical electrical specifications (125A at 48-660V load, 4-32VDC control input) and mechanical form factors (Hockey Puck, chassis mount, screw terminal). No circuit modifications or hardware changes are required.

Q: What is the primary reason for substitution?

A: The CWD48125S is classified as obsolete. The CWD48125P is the active equivalent within the CW48 series, ensuring continued component availability and supply chain reliability.

Q: Are there compliance differences between the two parts?

A: The CWD48125P carries ROHS3 compliance certification and is REACH Affected, reflecting current regulatory standards. The CWD48125S is REACH Unaffected. Both components share the same ECCN and HTSUS classifications.

Q: Does packaging differ between these parts?

A: The CWD48125S packaging specification is not detailed. The CWD48125P is supplied in Bulk packaging. This distinction does not affect electrical or mechanical performance.

Q: Are there inventory considerations?

A: The CWD48125P maintains significantly higher inventory availability (20,199 pcs) compared to the CWD48125S (978 pcs), supporting reliable procurement for production and maintenance applications.