CSW2425G Solid State Relay - Equivalent & Substitute Parts

Part Overview

The CSW2425G is a solid state relay (SSR) manufactured by Sensata Technologies, configured as a SPST-NO (Single Pole Single Throw - Normally Open) device with 1 Form A circuit topology. This hockey puck-style relay is rated for 25A load current with input voltage range of 3–32VDC and load voltage range of 24–280V AC with zero-cross switching capability. The part is currently in Last Time Buy status, making identification of equivalent alternatives essential for ongoing procurement and system continuity.

Substiute Parts

CSW2425G

Sensata TechnologiesIn Stock: 778CSW2425G Datasheet

Current PartRFQ

D2425G

Sensata-CrydomIn Stock: 1028D2425G Datasheet

DirectRFQ

84137010N

CrouzetIn Stock: 96684137010N Datasheet

MFR RecommendedRFQ

ASR-SI240D25ZW-L

Altran Magnetics, LLCIn Stock: 728ASR-SI240D25ZW-L Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the CSW2425G are qualified based on the following critical parameters that determine functional equivalence:

• Circuit Configuration: SPST-NO (1 Form A) topology required
• Output Type: AC with zero-cross switching capability
• Load Current Rating: 25A minimum
• Load Voltage Range: Must accommodate 24–280V minimum span
• Input Voltage Range: Must accommodate 3–32VDC minimum span
• Package / Case: Hockey puck form factor with chassis mount
• Termination: Screw terminal connection style
• Compliance: RoHS3 compliance preferred for regulatory alignment

Three substitute parts meet these criteria with varying degrees of parameter alignment and product status.

Parameter Comparison

Engineering Selection Recommendations

D2425G (Sensata-Crydom) provides the closest functional equivalence to CSW2425G. Both parts share identical electrical specifications across input voltage (3–32VDC), load voltage (24–280V), and load current (25A) parameters. D2425G maintains ROHS3 compliance and active product status, ensuring long-term availability and supply chain continuity. This part is the primary substitute for direct replacement applications.

84137010N (Crouzet) qualifies as a functional equivalent with minor parameter variance. Input voltage range begins at 4VDC rather than 3VDC, representing a 1VDC offset that may be acceptable depending on circuit design margins. The part maintains RoHS compliance and active status. Load voltage and current specifications are identical to the main part.

ASR-SI240D25ZW-L (Altran Magnetics, LLC) meets core substitution criteria with one notable load voltage specification difference. The minimum load voltage is 48V rather than 24V, restricting this part to applications where load voltage remains at or above 48V. Input voltage range (4–32VDC) and load current (25A) are equivalent to other substitutes. ROHS3 compliance and active product status are maintained.

Frequently Asked Questions (FAQ)

Q: Can D2425G replace CSW2425G in all applications?

A: D2425G is functionally equivalent across all specified electrical and mechanical parameters. Input voltage range (3–32VDC), load voltage range (24–280V), load current (25A), circuit configuration (SPST-NO), output type (AC, zero-cross), package (hockey puck), and termination style (screw terminal) are identical. Substitution is direct.

Q: What is the key limitation of ASR-SI240D25ZW-L?

A: ASR-SI240D25ZW-L has a minimum load voltage specification of 48V, compared to 24V for the main part and other substitutes. This part is suitable only for applications where the load voltage does not fall below 48V. If your circuit requires operation at 24–47V, this substitute is not appropriate.

Q: Does 84137010N have any parameter restrictions?

A: 84137010N specifies a minimum input voltage of 4VDC rather than 3VDC. In applications where input voltage may drop to 3VDC, this part may not operate reliably. For circuits with input voltage floor at 4VDC or higher, 84137010N is suitable.

Q: Are all substitutes RoHS compliant?

A: All substitute parts carry RoHS compliance certification. CSW2425G, D2425G, and ASR-SI240D25ZW-L are ROHS3 compliant. 84137010N is RoHS compliant. Both certifications meet current regulatory requirements.

Q: What is the packaging difference between substitutes?

A: CSW2425G is supplied in bulk packaging. D2425G and 84137010N are supplied in box packaging. ASR-SI240D25ZW-L is supplied in box packaging. Packaging format does not affect electrical or mechanical compatibility; it reflects supplier logistics only.

Q: Which substitute has the longest product lifecycle?

A: D2425G, 84137010N, and ASR-SI240D25ZW-L all carry active product status, indicating ongoing manufacturer support and availability. CSW2425G is in Last Time Buy status. For new designs or long-term procurement, D2425G is recommended due to identical specifications and active status within the same manufacturer family (Sensata-Crydom).