SSR Relay SPST-NO 125A Sensata Technologies 84134182

Part Overview

The Sensata Technologies 84134182 is a solid-state relay (SSR) with SPST-NO (1 Form A) configuration, rated for 125A load current in a hockey puck form factor. This component is designed for AC switching applications with zero-cross detection, operating across a wide voltage range of 48V to 660V. The part is currently active in production and RoHS compliant, making it suitable for industrial control and power switching applications where reliable solid-state switching is required.

Alternative models may be necessary due to inventory constraints, regional supplier availability, or specific application requirements that fall within the allowable parameter ranges for this product category.

Substiute Parts

84134182

Sensata TechnologiesIn Stock: 81784134182 Datasheet

Current PartRFQ

84138183N

CrouzetIn Stock: 76084138183N Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for SSR relay SPST-NO 125A components is determined by the following critical parameters:

• Circuit configuration must remain SPST-NO (1 Form A)
• Load current rating must be 125A
• Output type must be AC with zero-cross detection
• Package form factor must be hockey puck
• Mounting type must be chassis mount
• Termination style must be screw terminal
• Input voltage range must be compatible with control circuit requirements
• Load voltage range must encompass the application operating range
• RoHS compliance status must be maintained

The substitute part Crouzet 84138183N meets these criteria with allowable variations in input voltage range (20 ~ 260VAC/DC versus 18 ~ 36VAC) and load voltage range (24 V ~ 500 V versus 48 V ~ 660 V), which represent broader operational windows suitable for equivalent applications.

Parameter Comparison

Engineering Selection Recommendations

Both the Sensata Technologies 84134182 and Crouzet 84138183N are active production components with RoHS compliance certification. Selection between these parts should be based on specific application voltage requirements:

• The Sensata 84134182 is specified for input voltage 18 ~ 36VAC and load voltage 48 V ~ 660 V
• The Crouzet 84138183N accommodates input voltage 20 ~ 260VAC/DC and load voltage 24 V ~ 500 V

Applications requiring load voltages exceeding 500V necessitate the Sensata part. Applications operating within the 24 V ~ 500 V load range may utilize either component. Input voltage compatibility must be confirmed for the specific control circuit in use.

Frequently Asked Questions (FAQ)

Q: Can the Crouzet 84138183N replace the Sensata 84134182 in all applications?

A: Substitution is valid only when the application load voltage remains within 24 V ~ 500 V. Applications requiring load voltages above 500V require the Sensata part, as the Crouzet substitute is rated to 500V maximum.

Q: Are the input voltage ranges interchangeable?

A: The input voltage ranges differ. The Sensata part operates at 18 ~ 36VAC, while the Crouzet part accepts 20 ~ 260VAC/DC. Confirm that the control circuit voltage falls within the selected component's input specification.

Q: Do both parts use identical mounting and termination?

A: Yes. Both components feature chassis mount configuration with screw terminal termination in hockey puck form factor, ensuring mechanical and electrical interface compatibility.

Q: Are both parts RoHS compliant?

A: Yes. Both the Sensata 84134182 and Crouzet 84138183N are RoHS compliant and active production components.

Q: What is the significance of zero-cross detection in these relays?

A: Zero-cross detection ensures the relay switches at the AC voltage zero-crossing point, minimizing electromagnetic interference and reducing stress on connected loads during switching transitions.