H12WD4890G Solid State Relay - Equivalent & Substitute Parts

Part Overview

The H12WD4890G 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, operating from 4-32VDC input control voltage and supporting loads up to 90A at 48-660V output range. The part is ROHS3 compliant and REACH affected, with unlimited moisture sensitivity rating (MSL 1).

Equivalent and substitute parts are identified when alternative SSR models meet the core functional requirements: SPST-NO circuit topology, hockey puck form factor, screw terminal termination, AC zero-cross output type, and compatible input/output voltage and current specifications.

Substiute Parts

H12WD4890G

Sensata-CrydomIn Stock: 801H12WD4890G Datasheet

Current PartRFQ

84137140N

CrouzetIn Stock: 69284137140N Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the H12WD4890G is determined by the following critical parameters:

• Circuit topology must be SPST-NO (1 Form A)
• Output switching must be AC with zero-cross detection
• Input control voltage range must overlap or encompass 4-32VDC
• Load voltage range must support the application's operating envelope
• Load current rating must meet or exceed the required 90A
• Physical form factor must be hockey puck with screw terminal termination
• Mounting configuration must be chassis mount

The identified substitute part meets these criteria with allowable variations in load voltage range and current rating, provided the part remains functionally compatible within the specified input control voltage window.

Parameter Comparison

Engineering Selection Recommendations

Both the H12WD4890G and 84137140N are active products with current manufacturing status. The H12WD4890G carries ROHS3 compliance and is REACH affected. The 84137140N is RoHS compliant and REACH unaffected.

Selection between these parts depends on load voltage requirements. The H12WD4890G supports a wider load voltage range (48-660V), making it suitable for high-voltage industrial applications. The 84137140N operates within a narrower range (20-265V) but provides 100A current capacity compared to the H12WD4890G's 90A rating.

Both parts share identical input control voltage specifications (4-32VDC), circuit topology (SPST-NO), output switching characteristics (AC zero-cross), and physical form factor (hockey puck with screw terminals). Substitution is valid only when the application's load voltage falls within the 20-265V window supported by the 84137140N.

Frequently Asked Questions (FAQ)

Q: Can the 84137140N substitute for the H12WD4890G in all applications?

A: No. The 84137140N operates within a load voltage range of 20-265V, while the H12WD4890G supports 48-660V. Substitution is valid only when the application load voltage falls within the 20-265V range. Applications requiring voltages above 265V must use the H12WD4890G.

Q: Are the input control voltage specifications identical?

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

Q: What is the difference in current rating between these parts?

A: The H12WD4890G is rated for 90A load current, while the 84137140N is rated for 100A. The 84137140N provides 10A additional capacity. Both ratings are suitable for applications within their respective voltage ranges.

Q: Are both parts in active production?

A: Yes. Both the H12WD4890G and 84137140N maintain active product status with current manufacturing availability.

Q: Do these parts have the same physical form factor?

A: Yes. Both parts are housed in hockey puck packages with screw terminal termination and chassis mount configuration, ensuring mechanical compatibility in existing designs.

Q: What are the compliance differences between these parts?

A: The H12WD4890G is ROHS3 compliant and REACH affected. The 84137140N is RoHS compliant and REACH unaffected. Compliance requirements depend on the end application and regional regulations.