Sensata-Crydom 84140603 SSR Relay SPST-NO 40A 48-660V Equivalent & Substitute Parts

Part Overview

The Sensata-Crydom 84140603 is a solid-state relay (SSR) with SPST-NO (1 Form A) configuration rated for 40A load current at 48V to 660V AC output. This component features a hockey puck package with screw terminal termination and operates with 4-15VDC input control voltage. The part is classified as obsolete, making identification of equivalent and substitute components essential for system maintenance, redesign, and procurement planning.

Substiute Parts

84140603

Sensata-CrydomIn Stock: 99184140603 Datasheet

Current PartRFQ

84140600

Sensata-CrydomIn Stock: 117984140600 Datasheet

MFR RecommendedRFQ

84140603N

CrouzetIn Stock: 92284140603N Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 84140603 is determined by the following critical parameters:

Primary Compatibility Criteria:

• Circuit configuration: SPST-NO (1 Form A) x 2
• Output type: AC with zero-cross switching
• Load voltage range: 48V to 660V AC
• Input control voltage: compatible with 4-15VDC range
• Load current rating: minimum 40A
• Package type: Hockey Puck or Module form factor
• Termination compatibility: screw terminal or equivalent

Substitute Parts Identified:

1. 84140600 (Sensata-Crydom) – MFR Recommended substitute with identical electrical specifications but different termination style (Quick Connect 0.250") and active product status
2. 84140603N (Crouzet) – Direct manufacturer alternative with enhanced specifications (50A rating, 4-32VDC input range) and module package form factor

Parameter Comparison

Engineering Selection Recommendations

84140600 (Sensata-Crydom) is the manufacturer-recommended substitute. It maintains identical electrical specifications and GN2 series compatibility with the obsolete 84140603. The primary difference is termination style: Quick Connect 0.250" (6.3mm) versus screw terminal. This part carries active product status and RoHS compliance, ensuring long-term availability and regulatory alignment. Selection of this substitute requires verification of termination compatibility with existing wiring harnesses or connector systems.

84140603N (Crouzet) provides an alternative with enhanced electrical performance. The 50A load current rating exceeds the original 40A specification, and the expanded input voltage range (4-32VDC) offers greater control flexibility. The module package form factor differs from the hockey puck configuration, requiring mechanical redesign consideration. This part is ROHS3 compliant and supports both chassis and panel mounting. Selection of this substitute is appropriate for applications where the enhanced current rating and mounting flexibility provide system benefits.

Both substitutes maintain the critical GN2 series designation, SPST-NO circuit configuration, AC zero-cross output type, and 48-660V load voltage range required for functional equivalence.

Frequently Asked Questions (FAQ)

Q: Can the 84140600 be used as a direct replacement for the 84140603?

A: Electrical and functional compatibility is confirmed. The termination style differs (Quick Connect versus screw terminal), requiring assessment of connection method compatibility in your application. Both parts are GN2 series with identical voltage and current ratings.

Q: What are the mechanical differences between the 84140603 and 84140603N?

A: The 84140603 uses a hockey puck package with chassis mount configuration. The 84140603N uses a module package and supports both chassis and panel mounting. Physical dimensions and mounting hole patterns differ, requiring mechanical redesign if substitution is selected.

Q: Is the 84140603N suitable for applications requiring the original 40A rating?

A: Yes. The 84140603N is rated for 50A, which exceeds the 40A requirement of the original part. The higher current rating provides margin and is electrically compatible with 40A load applications.

Q: What is the significance of the expanded input voltage range in the 84140603N?

A: The 84140603N accepts 4-32VDC input control voltage compared to the original 4-15VDC range. This expanded range provides compatibility with a broader range of control signal sources. Applications limited to 4-15VDC operation are unaffected by this difference.

Q: Are there compliance or regulatory differences between the substitutes?

A: The 84140600 is RoHS compliant. The 84140603N is ROHS3 compliant, representing a more recent regulatory standard. Both parts are REACH unaffected and carry EAR99 ECCN classification. Selection should align with your system's regulatory requirements.

Q: Which substitute should be selected for new designs?

A: Selection depends on mechanical and electrical requirements. For direct replacement with minimal redesign, the 84140600 is appropriate if Quick Connect termination is acceptable. For new designs benefiting from enhanced current rating and mounting flexibility, the 84140603N is suitable.