CSW2490G Solid State Relay - Equivalent & Substitute Parts

Part Overview

The CSW2490G is a solid state relay (SSR) manufactured by Sensata-Crydom, classified as SPST-NO (1 Form A) with a hockey puck form factor. This component is rated for 90A load current with input voltage range of 3–32VDC and output voltage range of 24–280V AC with zero-cross switching capability. The CSW2490G is currently obsolete, making identification of equivalent and substitute parts essential for system maintenance, repair, and redesign applications. Substitute parts must maintain functional equivalence across critical electrical parameters including load current, voltage ratings, and switching characteristics.

Substiute Parts

CSW2490G

Sensata-CrydomIn Stock: 981CSW2490G Datasheet

Current PartRFQ

D2490G

Sensata-CrydomIn Stock: 1033D2490G Datasheet

DirectRFQ

84137480N

CrouzetIn Stock: 108884137480N Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CSW2490G is determined by strict equivalence across the following critical parameters:

• Circuit Configuration: SPST-NO (1 Form A) topology
• Load Current Rating: 90 A minimum
• Input Voltage Range: 3–32VDC minimum
• Output Voltage Range: 24–280V minimum
• Switching Characteristic: AC with zero-cross capability
• Mounting and Termination: Chassis mount with screw terminal
• Package Form Factor: Hockey puck

Two substitute parts meet these criteria:

1. D2490G (Sensata-Crydom): Direct manufacturer successor with identical electrical specifications and active product status.
2. 84137480N (Crouzet): Manufacturer-recommended alternative with extended voltage rating (48–660V) and active product status, suitable for applications requiring higher output voltage tolerance.

Parameter Comparison

Engineering Selection Recommendations

D2490G (Sensata-Crydom) is the primary substitute for direct replacement applications. This part maintains identical electrical specifications and is manufactured by the original equipment supplier, ensuring design continuity and compatibility with existing system documentation. The D2490G is in active production status, providing long-term availability and supply chain stability.

84137480N (Crouzet) is suitable for applications where extended output voltage tolerance is required. This part accommodates load voltages up to 660V compared to the 280V maximum of the CSW2490G, making it applicable to systems with higher voltage margins or future voltage scaling requirements. The 84137480N is RoHS compliant and in active production status. The minimum input voltage is 4VDC (versus 3VDC for the CSW2490G), which may require verification in low-voltage control circuits.

Both substitute parts maintain the 90A load current rating, SPST-NO circuit topology, zero-cross AC switching, and hockey puck form factor required for mechanical and electrical compatibility.

Frequently Asked Questions (FAQ)

Q: Can D2490G be used as a direct replacement for CSW2490G?

A: Yes. The D2490G maintains identical electrical specifications including 90A load current, 3–32VDC input range, 24–280V output range, and zero-cross AC switching. Both parts use screw terminal connections and hockey puck packaging. The D2490G is the active successor from the same manufacturer.

Q: What is the primary difference between D2490G and 84137480N?

A: The 84137480N has an extended output voltage range (48–660V) compared to D2490G (24–280V). Both maintain 90A load current and identical circuit topology. The 84137480N is manufactured by Crouzet rather than Sensata-Crydom. The minimum input voltage for 84137480N is 4VDC versus 3VDC for D2490G.

Q: Which substitute should be selected for a replacement application?

A: Select D2490G for direct replacement where the original 24–280V output voltage range is sufficient. Select 84137480N only if the application requires output voltage tolerance above 280V or if supply chain constraints limit D2490G availability.

Q: Are both substitutes RoHS compliant?

A: The 84137480N is confirmed RoHS compliant. RoHS status for D2490G is not specified in available documentation and should be confirmed with the manufacturer if RoHS compliance is a system requirement.

Q: Is the hockey puck form factor identical across all three parts?

A: Yes. All three parts use hockey puck packaging with chassis mount configuration and screw terminal termination, ensuring mechanical compatibility in existing installations.

Q: What is the minimum input voltage difference between substitutes?

A: The CSW2490G and D2490G accept input voltage as low as 3VDC, while the 84137480N minimum is 4VDC. This difference is relevant only for control circuits operating below 4VDC.