CWA4890H Equivalent & Substitute Parts

Part Overview

The CWA4890H is a solid-state relay (SSR) manufactured by Sensata-Crydom, classified as SPST-NO (1 Form A) in a hockey puck package. This component is designed for AC load switching applications with zero-cross detection, rated for 90A load current across a 48V to 660V operating range. The part is currently in active production status and RoHS compliant.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the allowed parameter tolerances for this product category. The CWA4890H has one qualified substitute in the Crouzet GN+ series.

Substiute Parts

CWA4890H

Sensata-CrydomIn Stock: 986CWA4890H Datasheet

Current PartRFQ

84138153N

CrouzetIn Stock: 92784138153N Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The CWA4890H qualifies for substitution with the Crouzet 84138153N based on the following critical parameters:

• Circuit Configuration: Both parts are SPST-NO (1 Form A) solid-state relays
• Output Switching: Both employ AC switching with zero-cross detection
• Load Current Rating: Both are rated for 90A continuous load current
• Package Form Factor: Both use hockey puck chassis-mount construction
• Termination Interface: Both feature screw terminal connections
• Compliance: Both are RoHS compliant and carry EAR99 ECCN classification

The substitute part operates within a different input voltage range (20–260 VAC/DC versus 90–280 VAC) and a reduced load voltage range (24–500V versus 48–660V). These differences define the application boundaries within which substitution is valid.

Parameter Comparison

Engineering Selection Recommendations

Both the CWA4890H and 84138153N are active production components with RoHS compliance and identical ECCN/HTSUS classifications, making them suitable for regulated supply chain applications.

Selection between these parts depends on application voltage requirements:

• CWA4890H is specified for applications requiring input voltage operation between 90–280 VAC and load voltage operation up to 660V.
• 84138153N is specified for applications requiring input voltage operation between 20–260 VAC/DC (including DC input capability) and load voltage operation up to 500V.

The Crouzet 84138153N provides broader input voltage flexibility with DC input support, while the Sensata-Crydom CWA4890H supports higher load voltage applications. Both parts maintain identical load current capacity (90A) and switching characteristics (AC, zero-cross).

Frequently Asked Questions (FAQ)

Q: Can the Crouzet 84138153N replace the CWA4890H in all applications?

A: Substitution is valid only when the application load voltage does not exceed 500V and the input voltage requirement falls within the 20–260 VAC/DC range. Applications requiring load voltages above 500V or input voltages below 20 VAC or above 260 VAC require the CWA4890H.

Q: What is the significance of the hockey puck package form factor?

A: The hockey puck package is a standardized chassis-mount form factor for high-current solid-state relays. Both parts use this identical package, ensuring mechanical compatibility in mounting and thermal management applications.

Q: Are both parts suitable for new designs?

A: Yes. Both the CWA4890H and 84138153N are in active production status, making them appropriate for new product development and long-term supply chain planning.

Q: What does zero-cross detection mean for these relays?

A: Zero-cross detection ensures the relay switches AC loads at the zero-voltage point of the AC waveform, minimizing electromagnetic interference and reducing stress on connected components.

Q: Do these parts require different termination procedures?

A: No. Both parts use screw terminal connections and follow standard termination practices for solid-state relays of this class.