HD4890G Solid State Relay - Equivalent & Substitute Parts

Part Overview

The HD4890G is an active Sensata-Crydom solid state relay (SSR) featuring SPST-NO (1 Form A) switching configuration in a hockey puck package. This component is designed for AC load switching applications with zero-cross detection, rated for 90A at 48-530V output and 3-32VDC input control. The part is RoHS compliant and carries MSL Level 1 classification. Substitute parts are identified when equivalent electrical and mechanical parameters align within the allowed specifications for this product category.

Substiute Parts

HD4890G

Sensata-CrydomIn Stock: 861HD4890G Datasheet

Current PartRFQ

84137140N

CrouzetIn Stock: 69284137140N Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the HD4890G is determined by the following critical parameters:

• Circuit configuration must be SPST-NO (1 Form A)
• Output type must be AC with zero-cross detection
• Package must be hockey puck with screw terminal termination
• Mounting type must be chassis mount
• Input voltage range must accommodate 3-32VDC control signals
• Load current rating must meet or exceed 90A
• Load voltage range must encompass the operating window of 48-530V
• RoHS compliance status must be maintained
• MSL rating must be Level 1 or equivalent

The identified substitute part 84137140N from Crouzet meets these core substitution criteria within the allowed parameter tolerances for this product category.

Parameter Comparison

Engineering Selection Recommendations

Both the HD4890G and 84137140N are active products with RoHS compliance and MSL Level 1 ratings. The 84137140N provides higher load current capacity (100A vs. 90A) and maintains the same control input voltage range compatibility (4-32VDC overlaps with 3-32VDC requirement). Both components feature identical circuit topology, output switching characteristics, and mechanical form factor.

Selection between these parts should be based on application-specific load voltage requirements. The HD4890G supports extended load voltage operation up to 530V, while the 84137140N operates within a 20-265V load voltage window. Applications requiring load voltages above 265V must use the HD4890G. Applications operating within the 20-265V range may use either part based on current capacity and supply availability.

Frequently Asked Questions (FAQ)

Q: Can the 84137140N replace the HD4890G in all applications?

A: The 84137140N is suitable for applications where the load voltage remains within 20-265V. Applications requiring load voltages above 265V or below 20V must use the HD4890G, as the substitute part does not support this extended voltage range.

Q: Are the input control voltage ranges compatible?

A: Yes. The HD4890G accepts 3-32VDC input, while the 84137140N accepts 4-32VDC input. The 84137140N range is a subset of the main part, so applications designed for the HD4890G will operate the 84137140N within its specified input range.

Q: Do both parts have identical mechanical mounting?

A: Yes. Both components are chassis-mount hockey puck packages with screw terminal connections, ensuring mechanical interchangeability in the same mounting configuration.

Q: What is the significance of the higher current rating on the 84137140N?

A: The 84137140N is rated for 100A load current compared to the HD4890G at 90A. This higher rating provides additional margin in applications approaching the 90A limit but does not affect substitution eligibility for applications within the 90A specification.

Q: Are both parts RoHS compliant?

A: Yes. Both the HD4890G and 84137140N are RoHS compliant with MSL Level 1 (Unlimited) moisture sensitivity ratings.