H12WD4890PG Solid State Relay - Equivalent & Substitute Parts

Part Overview

The H12WD4890PG is an active, ROHS3 compliant solid state relay manufactured by Sensata-Crydom. This SPST-NO (1 Form A) hockey puck relay is designed for AC load switching with zero-cross detection, operating with 4-32VDC input control and supporting loads up to 90A at 48-660V. The part is currently in active production status with 954 units in stock.

Substitute parts are identified when equivalent electrical and mechanical specifications align with the main part's functional requirements, enabling direct replacement in applications where the specified parameters remain within acceptable operating ranges.

Substiute Parts

H12WD4890PG

Sensata-CrydomIn Stock: 970H12WD4890PG Datasheet

Current PartRFQ

84137140N

CrouzetIn Stock: 69284137140N Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the H12WD4890PG is determined by the following critical parameters:

• Circuit Configuration: Must be SPST-NO (1 Form A) to maintain identical switching topology
• Output Type: Must support AC switching with zero-cross detection
• Input Control Voltage: Must operate within 4-32VDC range
• Load Voltage Range: Must accommodate the 48-660V operating window
• Load Current Capacity: Must support minimum 90A continuous current
• Package Type: Must be Hockey Puck form factor for mechanical compatibility
• Termination: Must use Screw Terminal configuration
• Mounting: Must support Chassis Mount installation

The identified substitute part 84137140N (Crouzet GN series) meets these substitution criteria within the specified electrical and mechanical parameters.

Parameter Comparison

Engineering Selection Recommendations

Primary Part (H12WD4890PG): Recommended for applications requiring the full 48-660V load voltage range. ROHS3 compliance and active production status ensure long-term availability and regulatory alignment.

Substitute Part (84137140N): Suitable for applications operating within the 20-265V load voltage range. The 100A current capacity exceeds the 90A requirement of the primary part. RoHS compliance is confirmed. Selection of this substitute is appropriate when load voltage specifications fall within the 20-265V window and the application does not require the extended voltage capability of the primary part.

Frequently Asked Questions (FAQ)

Q: Can 84137140N replace H12WD4890PG in all applications?

A: No. The 84137140N has a maximum load voltage of 265V, while the H12WD4890PG supports up to 660V. Substitution is valid only for applications where the load voltage does not exceed 265V.

Q: Are the input control voltage requirements identical?

A: Yes. Both parts operate with 4-32VDC input control voltage, ensuring compatible control circuit integration.

Q: Do both parts use the same physical package?

A: Yes. Both are Hockey Puck form factor with Screw Terminal termination and Chassis Mount configuration, enabling direct mechanical replacement when electrical parameters are compatible.

Q: What is the current capacity difference?

A: The 84137140N provides 100A capacity compared to the H12WD4890PG at 90A. This represents a 10A increase, making the substitute suitable for applications requiring the primary part's current specification.

Q: Are there compliance differences between the parts?

A: The H12WD4890PG is ROHS3 compliant. The 84137140N is RoHS compliant. Both meet regulatory requirements for their respective markets. The H12WD4890PG is REACH Affected; the 84137140N is REACH Unaffected.

Q: What determines whether a substitute is acceptable?

A: Substitution validity depends on the application's load voltage range, required current capacity, input control voltage, and compliance requirements. The substitute must meet or exceed the electrical specifications of the primary part within the intended operating range.