CWD4890S Equivalent & Substitute Parts

Part Overview

The CWD4890S is a solid-state relay (SSR) with SPST-NO (1 Form A) configuration, rated for 90A load current at 48-660V AC output with zero-cross switching. Manufactured by Sensata-Crydom as part of the CW48 series, this component features a hockey puck form factor with screw terminal connections and operates from 4-32VDC input control voltage.

The CWD4890S is classified as obsolete. Locating equivalent or substitute parts is necessary to support ongoing maintenance, repair, and new design requirements where this model is specified or currently deployed.

Substiute Parts

CWD4890S

Sensata-CrydomIn Stock: 778CWD4890S Datasheet

Current PartRFQ

CWD4890P

Sensata-CrydomIn Stock: 2144CWD4890P Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CWD4890S is based on electrical and mechanical parameter equivalence within the Sensata-Crydom CW48 series. The substitute part must satisfy the following criteria:

• Circuit Configuration: SPST-NO (1 Form A) topology
• Output Type: AC with zero-cross switching capability
• Input Voltage Range: 4 ~ 32VDC control voltage
• Load Voltage Range: 48 V ~ 660 V AC
• Load Current Rating: 90 A
• Mounting Type: Chassis Mount
• Termination: Screw Terminal
• Package Form Factor: Hockey Puck

The CWD4890P meets all these electrical and mechanical requirements and is identified as the manufacturer-recommended substitute. Both parts share the same base product number (CWD4890) and are functionally equivalent within the specified parameter ranges.

Parameter Comparison

Engineering Selection Recommendations

The CWD4890P is the direct substitute for the obsolete CWD4890S. Both components are manufactured by Sensata-Crydom and share identical electrical ratings and mechanical specifications across all critical parameters: input voltage, load voltage, current capacity, circuit topology, and form factor.

The CWD4890P offers the advantage of active product status, ensuring continued availability and manufacturing support. The CWD4890P is ROHS3 compliant, meeting current environmental and regulatory requirements for new designs and production environments where such compliance is mandated.

The REACH status difference (CWD4890S: REACH Unaffected; CWD4890P: REACH Affected) reflects regulatory classification changes and does not affect functional equivalence or electrical performance in applications where the CWD4890S was previously specified.

Frequently Asked Questions (FAQ)

Q: Can the CWD4890P directly replace the CWD4890S in existing applications?

A: Yes. The CWD4890P is electrically and mechanically equivalent to the CWD4890S across all specified parameters: input voltage (4-32VDC), load voltage (48-660V), current rating (90A), circuit configuration (SPST-NO), output type (AC zero-cross), mounting type (chassis mount), termination style (screw terminal), and package form factor (hockey puck).

Q: What is the difference between the CWD4890S and CWD4890P packaging?

A: The CWD4890S packaging designation is not specified in the available data. The CWD4890P is supplied in bulk packaging. This difference does not affect electrical or mechanical compatibility; it reflects supplier inventory and distribution practices.

Q: Are there compliance differences between these parts?

A: The CWD4890P is ROHS3 compliant, while RoHS status for the CWD4890S is not specified. Both parts carry the same ECCN (EAR99) and HTSUS (8536.49.0080) classifications. The REACH status differs due to regulatory updates, but this does not impact functional performance or substitution suitability.

Q: Why is the CWD4890S classified as obsolete?

A: Obsolescence reflects the manufacturer's discontinuation of this specific model variant. The CWD4890P, sharing the same base product number and electrical specifications, remains in active production and is the recommended path for continued component sourcing.

Q: Are there other substitutes beyond the CWD4890P?

A: Based on the provided data, the CWD4890P is the manufacturer-recommended substitute. The CWD4890P documentation references 84137140N as an additional substitute; however, detailed specifications for that part are not provided in this reference.