CMD2490 Solid State Relay SPST-NO 90A 24-280V Equivalent & Substitute Parts

Part Overview

The CMD2490 is a solid state relay (SSR) manufactured by Sensata-Crydom, configured as a single-pole single-throw normally open (SPST-NO) device rated for 90A load current at 24-280V AC output. This component features a hockey puck form factor with screw terminal connections and zero-cross switching capability for AC loads.

The CMD2490 is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain system continuity, ensure supply chain reliability, and support ongoing maintenance and production requirements for applications utilizing this relay configuration.

Substiute Parts

CMD2490

Sensata-CrydomIn Stock: 975CMD2490 Datasheet

Current PartRFQ

84137040

Sensata-CrydomIn Stock: 76084137040 Datasheet

MFR RecommendedRFQ

CWD2490

Sensata-CrydomIn Stock: 1166CWD2490 Datasheet

MFR RecommendedRFQ

D2490

Sensata TechnologiesIn Stock: 4185D2490 Datasheet

MFR RecommendedRFQ

ASR-SN240D100ZW-L

Altran Magnetics, LLCIn Stock: 1172ASR-SN240D100ZW-L Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CMD2490 is determined by the following critical parameters:

• Circuit Configuration: Must be SPST-NO (1 Form A)
• Output Type: Must be AC with zero-cross switching
• Input Voltage Range: Must support 3 ~ 32VDC
• Load Voltage Range: Must support 24 V ~ 280 V
• Load Current Rating: Must be rated for minimum 90A continuous operation
• Mounting Type: Must be chassis mount compatible
• Termination: Must use screw terminal connections
• Package Form Factor: Hockey puck or equivalent module form factor acceptable

The substitute parts listed below meet these core electrical and mechanical requirements. Variations in load current rating above 90A, product status (active vs. obsolete), and manufacturer identity are permitted within this substitution framework.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes (Identical Load Current - 90A):

CWD2490 and D2490 are direct functional equivalents to the CMD2490, maintaining the 90A load current specification. Both parts are in active product status, ensuring long-term availability and supply chain stability. CWD2490 is manufactured by Sensata-Crydom (original manufacturer family) and carries RoHS compliance. D2490 is manufactured by Sensata Technologies with ROHS3 compliance and REACH affected status, providing enhanced regulatory alignment for applications requiring stricter environmental compliance.

Higher Current Capacity Substitutes (100A):

84137040 and ASR-SN240D100ZW-L provide 100A load current capacity, exceeding the CMD2490 specification. These parts are suitable for applications where increased current margin is beneficial. 84137040 maintains the hockey puck form factor and Sensata-Crydom manufacturing lineage. ASR-SN240D100ZW-L uses a module form factor and is manufactured by Altran Magnetics, LLC with ROHS3 compliance and REACH unaffected status.

Selection Criteria:

• For direct replacement with identical specifications: CWD2490 or D2490
• For enhanced regulatory compliance (ROHS3): D2490 or ASR-SN240D100ZW-L
• For increased current capacity with maintained form factor: 84137040
• For alternative manufacturer with higher current rating: ASR-SN240D100ZW-L

All substitute parts maintain identical input voltage range (3-32VDC), load voltage range (24-280V), circuit configuration (SPST-NO), output type (AC zero-cross), mounting type (chassis mount), and termination style (screw terminal).

Frequently Asked Questions (FAQ)

Q: Can CWD2490 directly replace CMD2490 in existing applications?

A: Yes. CWD2490 matches all critical electrical parameters: 90A load current, 24-280V load voltage, 3-32VDC input voltage, SPST-NO configuration, AC zero-cross output, screw terminal connections, and chassis mount compatibility. The hockey puck form factor is identical.

Q: What is the difference between the 90A and 100A rated substitutes?

A: Load current rating is the primary difference. CMD2490, CWD2490, and D2490 are rated for 90A continuous operation. 84137040 and ASR-SN240D100ZW-L are rated for 100A. All other electrical and mechanical parameters remain identical. The 100A parts provide additional current margin for applications with variable or peak load conditions.

Q: Does the module form factor of ASR-SN240D100ZW-L affect compatibility?

A: The ASR-SN240D100ZW-L uses a module form factor instead of the hockey puck configuration. While all electrical parameters are compatible, physical mounting and thermal management characteristics may differ. Verify mechanical fit and thermal dissipation requirements in the application before substitution.

Q: Are all substitute parts RoHS compliant?

A: Yes. CMD2490 is RoHS Compliant. CWD2490 and 84137040 are RoHS Compliant. D2490 and ASR-SN240D100ZW-L are ROHS3 Compliant, representing enhanced environmental compliance standards.

Q: Which substitute offers the best long-term supply availability?

A: D2490 and CWD2490 are both in active product status with substantial inventory levels (4110 and 1121 units respectively), ensuring reliable long-term availability. Both are suitable for new designs and ongoing production requirements.

Q: Can I use a 100A rated substitute in an application designed for 90A?

A: Yes. A higher current-rated component is functionally compatible in applications designed for lower current operation. The 100A parts will operate safely at 90A load levels. Verify that thermal management and mounting provisions accommodate the substitute part's physical characteristics.

Q: What compliance certifications should I verify for my specific application?

A: Review REACH status and RoHS compliance level requirements for your end application. D2490 is REACH Affected and ROHS3 Compliant. ASR-SN240D100ZW-L is REACH Unaffected and ROHS3 Compliant. CWD2490 and 84137040 are RoHS Compliant with standard compliance status. Confirm regulatory requirements with your quality and compliance department.