Equivalent & Substitute Parts for HD4890 Solid State Relay

Part Overview

The HD4890 is a Solid State Relay (SSR) manufactured by Sensata-Crydom, configured as a SPST-NO (Single Pole Single Throw - Normally Open) device in a Hockey Puck package. This relay is designed for AC load switching applications with zero-cross detection, rated for 90A at load voltages between 48V and 530V. The part is currently Active in product status and maintains full RoHS3 compliance.

Substitute parts become necessary when inventory constraints exist, when specific voltage or current ratings better match application requirements, or when alternative manufacturer sourcing is required while maintaining equivalent electrical and mechanical functionality.

Key Parameters

Parameter	HD4890
Manufacturer	Sensata-Crydom
Circuit Configuration	SPST-NO (1 Form A)
Output Type	AC, Zero Cross
Input Voltage Range	3 ~ 32VDC
Load Voltage Range	48 V ~ 530 V
Load Current Rating	90 A
Mounting Type	Chassis Mount
Termination Style	Screw Terminal
Package Type	Hockey Puck
RoHS Status	RoHS3 Compliant
Product Status	Active

Substitute Part Grouping Explanation

Substitution eligibility for the HD4890 is determined by the following critical parameters:

Circuit Configuration: Must be SPST-NO (1 Form A) to maintain identical switching topology
Output Type: Must be AC with Zero Cross detection for equivalent control characteristics
Mounting Type: Must be Chassis Mount to ensure physical compatibility
Termination Style: Must be Screw Terminal for connection compatibility
Package Type: Must be Hockey Puck for form factor equivalence
Load Current Rating: Must be equal to or greater than 90A
Load Voltage Range: Must encompass or exceed the 48V to 530V operating window
Input Voltage Range: Must accommodate the 3 ~ 32VDC control signal range
Compliance: Must maintain RoHS3 compliance for regulatory equivalence

The substitute parts listed below satisfy all these criteria while offering enhanced current ratings or extended voltage ranges.

Parameter Comparison

Parameter	HD4890	84134140	84137140N
Manufacturer	Sensata-Crydom	Sensata-Crydom	Crouzet
Circuit Configuration	SPST-NO (1 Form A)	SPST-NO (1 Form A)	SPST-NO (1 Form A)
Output Type	AC, Zero Cross	AC, Zero Cross	AC, Zero Cross
Input Voltage Range	3 ~ 32VDC	4 ~ 32VDC	4 ~ 32VDC
Load Voltage Range	48 V ~ 530 V	48 V ~ 660 V	20 V ~ 265 V
Load Current Rating	90 A	100 A	100 A
Mounting Type	Chassis Mount	Chassis Mount	Chassis Mount
Termination Style	Screw Terminal	Screw Terminal	Screw Terminal
Package Type	Hockey Puck	Hockey Puck	Hockey Puck
RoHS Status	RoHS3 Compliant	RoHS3 Compliant	RoHS Compliant
Product Status	Active	Active	Active

Engineering Selection Recommendations

84134140 (Sensata-Crydom): This substitute maintains manufacturer continuity with Sensata-Crydom while providing a 10A current rating increase (100A versus 90A) and an extended maximum load voltage of 660V compared to the HD4890's 530V. The input voltage range minimum increases from 3VDC to 4VDC. Both parts maintain RoHS3 compliance and Active product status. This substitute is suitable for applications requiring higher current capacity or extended voltage headroom within the same manufacturer ecosystem.

84137140N (Crouzet): This substitute introduces an alternative manufacturer (Crouzet) while maintaining identical circuit configuration, output type, and mounting specifications. The load current rating increases to 100A. However, the load voltage range is reduced to 20V ~ 265V, which does not encompass the full 48V ~ 530V range of the HD4890. The input voltage minimum also increases to 4VDC. This substitute is suitable only for applications operating within the 20V ~ 265V load voltage window. RoHS compliance is maintained, though at the base RoHS level rather than RoHS3.

Frequently Asked Questions (FAQ)

Q: Can the 84134140 be used as a direct replacement for the HD4890?

A: Yes. The 84134140 maintains all critical electrical and mechanical parameters while offering enhanced current capacity (100A versus 90A) and extended maximum load voltage (660V versus 530V). The minimum input voltage increases from 3VDC to 4VDC, which is compatible with standard control circuits. Both parts are RoHS3 compliant and Active in product status.

Q: Is the 84137140N compatible with all HD4890 applications?

A: The 84137140N is compatible only with applications where the load voltage operates within the 20V ~ 265V range. Applications requiring the full 48V ~ 530V load voltage range of the HD4890 cannot use this substitute. Verify load voltage specifications before selection.

Q: What is the significance of the Hockey Puck package type?

A: The Hockey Puck package is a standardized form factor for high-current solid state relays, ensuring consistent mounting, thermal management, and connection compatibility across equivalent devices. All listed substitutes maintain this package type.

Q: Does the input voltage range difference affect compatibility?

A: The HD4890 accepts input voltages as low as 3VDC, while both substitutes require a minimum of 4VDC. Applications using control signals below 4VDC cannot use the substitute parts. Standard industrial control circuits typically operate at 5VDC, 12VDC, or 24VDC, which are compatible with all three relays.

Q: Are there compliance differences between the substitute parts?

A: The HD4890 and 84134140 are both RoHS3 compliant. The 84137140N is RoHS compliant but not specifically RoHS3 certified. Both substitutes are REACH Affected or REACH Unaffected as specified. Verify compliance requirements for your application before selection.

Q: What is the difference between Sensata-Crydom and Crouzet sourcing?

A: Sensata-Crydom and Crouzet are separate manufacturers. The 84134140 maintains Sensata-Crydom sourcing, while the 84137140N introduces Crouzet as an alternative supplier. Both manufacturers produce equivalent SPST-NO solid state relays meeting the specified electrical and mechanical parameters.

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