SSR Relay SPST-NO 84137342 Equivalent & Substitute Parts

Part Overview

The Sensata-Crydom 84137342 is an active solid-state relay (SSR) with SPST-NO (1 Form A) configuration, rated for 100A load current at 48–660V AC output. This hockey puck-style chassis mount relay operates with 18–36VAC input and features screw terminal connections. The part is RoHS compliant and carries MSL 1 (unlimited moisture sensitivity level).

Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter ranges for this product category.

Substiute Parts

84137342

Sensata-CrydomIn Stock: 93484137342 Datasheet

Current PartRFQ

84138183N

CrouzetIn Stock: 76084138183N Datasheet

MFR RecommendedRFQ

84138183N

CrouzetIn Stock: 76084138183N Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 84137342 is determined by the following criteria:

• Circuit Configuration: Must be SPST-NO (1 Form A)
• Package / Case: Must be Hockey Puck form factor with chassis mount capability
• Termination Style: Must be Screw Terminal
• Load Current Rating: Must be equal to or greater than 100A
• Load Voltage Range: Must encompass or exceed the 48–660V range
• Input Voltage Compatibility: Must accept the 18–36VAC input signal or broader range
• Output Type: Must support AC output
• RoHS Compliance: Must maintain RoHS compliant status
• Product Status: Must be Active

The substitute part 84138183N (Crouzet) meets these criteria with enhanced specifications in load current (125A) and input voltage flexibility (20–260VAC/DC), while maintaining the same mechanical form factor and electrical circuit topology.

Parameter Comparison

Engineering Selection Recommendations

The 84138183N (Crouzet) qualifies as a direct substitute for the 84137342 based on the following:

• Both parts maintain SPST-NO circuit topology and hockey puck mechanical form factor
• Both are RoHS compliant with MSL 1 rating and active product status
• The 84138183N provides higher load current capacity (125A vs. 100A), ensuring compatibility with existing 100A load requirements
• The 84138183N accepts a broader input voltage range (20–260VAC/DC), providing greater flexibility than the 18–36VAC specification of the 84137342
• Both parts use identical screw terminal connections and chassis mount configuration
• The 84138183N includes zero-cross switching capability, which does not degrade compatibility with standard AC switching applications

Selection between these parts depends on application-specific requirements regarding input voltage range and load current headroom.

Frequently Asked Questions (FAQ)

Q: Can the 84138183N replace the 84137342 in all applications?

A: The 84138183N meets all substitution criteria for the 84137342. The higher current rating (125A vs. 100A) and broader input voltage range (20–260VAC/DC vs. 18–36VAC) make it compatible with applications designed for the 84137342. However, the load voltage range of the 84138183N (24–500V) does not extend to 660V, which is the upper limit of the 84137342. Applications requiring operation above 500V load voltage must use the 84137342.

Q: What is the significance of the zero-cross switching feature in the 84138183N?

A: Zero-cross switching synchronizes relay activation with the AC voltage waveform zero crossing point, reducing electromagnetic interference and switching stress. This feature is compatible with standard AC switching applications and does not prevent substitution.

Q: Are the mechanical dimensions identical between these parts?

A: Both parts use the hockey puck form factor with chassis mount configuration and screw terminal connections. Mechanical compatibility is maintained for direct substitution in existing mounting arrangements.

Q: What certifications apply to both parts?

A: Both the 84137342 and 84138183N are RoHS compliant. The 84138183N carries additional REACH Unaffected status. Both parts carry ECCN EAR99 classification.

Q: How do the input voltage ranges affect substitution?

A: The 84137342 requires 18–36VAC input, while the 84138183N accepts 20–260VAC/DC input. The 84138183N's broader range ensures compatibility with the 84137342's input specification and provides additional flexibility for applications with varying input voltage sources.