CWA4890S Solid State Relay - Equivalent & Substitute Parts

Part Overview

The CWA4890S is a solid state relay (SSR) with SPST-NO (1 Form A) configuration, rated for 90A load current across 48V to 660V AC output range. This component features zero-cross switching capability and screw terminal connections in a hockey puck form factor. The CWA4890S is classified as obsolete, making identification of active equivalent parts essential for ongoing system support and procurement planning.

Substiute Parts

CWA4890S

Sensata-CrydomIn Stock: 967CWA4890S Datasheet

Current PartRFQ

CWA4890P

Sensata-CrydomIn Stock: 1129CWA4890P Datasheet

MFR RecommendedRFQ

CWA4890P

Sensata-CrydomIn Stock: 1129CWA4890P Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the CWA4890S is determined by strict equivalence across the following critical parameters:

• Circuit configuration: SPST-NO (1 Form A)
• Load current rating: 90 A
• Input voltage range: 90 ~ 280 VAC
• Output voltage range: 48 V ~ 660 V
• Output type: AC with zero-cross switching
• Mounting type: Chassis Mount
• Termination: Screw Terminal
• Package form factor: Hockey Puck

The CWA4890P is the direct manufacturer-recommended substitute, maintaining identical electrical specifications and mechanical form factor while offering active product status and RoHS compliance.

Parameter Comparison

Engineering Selection Recommendations

The CWA4890P is the appropriate substitute for the obsolete CWA4890S. Both components share identical electrical and mechanical specifications, ensuring direct functional equivalence. The CWA4890P offers the advantage of active product status, ensuring continued availability and supply chain support. Additionally, the CWA4890P carries RoHS compliance certification, meeting current regulatory requirements for electronic component procurement.

Frequently Asked Questions (FAQ)

Q: Can CWA4890P be used as a direct replacement for CWA4890S? A: Yes. The CWA4890P maintains identical electrical ratings (90A, 48-660V output, 90-280VAC input), circuit configuration (SPST-NO), output type (AC zero-cross), and mechanical form factor (hockey puck, screw terminal, chassis mount). No circuit modifications are required.

Q: What is the difference between CWA4890S and CWA4890P? A: The primary differences are product status and compliance. CWA4890S is obsolete, while CWA4890P is active. CWA4890P is RoHS compliant. All electrical and mechanical parameters are identical.

Q: Are there packaging differences between these parts? A: CWA4890S is specified with dash packaging, while CWA4890P is supplied in bulk packaging. Both use the same hockey puck form factor and screw terminal configuration.

Q: What certifications apply to the substitute part? A: CWA4890P is RoHS compliant and carries ECCN EAR99 classification with HTSUS code 8536.49.0080.

Q: Is the CWA4890P available in stock? A: Availability varies by supplier. Verify current inventory status with your component distributor before finalizing procurement.