HD48125T-10 Equivalent & Substitute Parts

Part Overview

The HD48125T-10 is a solid-state relay (SSR) manufactured by Sensata-Crydom, classified as a SPST-NO (Single Pole Single Throw - Normally Open) device in a hockey puck form factor. This component is designed for AC load switching applications with a rated load current of 125 A and operates across a load voltage range of 48 V to 530 V. The device is actively produced and maintains RoHS compliance, making it suitable for modern industrial control and power distribution applications where mechanical relay alternatives are insufficient.

Equivalent and substitute parts are identified to address supply chain continuity, inventory optimization, and application flexibility while maintaining functional compatibility within specified electrical and mechanical parameters.

Substiute Parts

HD48125T-10

Sensata-CrydomIn Stock: 1208HD48125T-10 Datasheet

Current PartRFQ

84138180N

CrouzetIn Stock: 116984138180N Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the HD48125T-10 are identified based on the following critical parameters that determine functional interchangeability:

• Circuit Configuration: SPST-NO (1 Form A) topology must be maintained
• Load Current Rating: 125 A minimum capacity required
• Package / Case: Hockey puck form factor for mechanical compatibility
• Mounting Type: Chassis mount configuration
• Termination Style: Screw terminal interface
• Load Voltage Range: Minimum 48 V lower bound; upper bound must accommodate 530 V or higher
• Input Voltage Range: Must operate within 3 V – 32 VDC control signal range
• Output Type: AC switching capability

The substitute part 84138180N (Crouzet GN+ series) meets these core substitution criteria. While the load voltage upper limit is 500 V (compared to 530 V for the main part), the lower bound of 24 V and the 125 A current rating maintain functional compatibility for the majority of AC load switching applications. Both parts share identical circuit topology, package form factor, and termination methodology.

Parameter Comparison

Engineering Selection Recommendations

Both the HD48125T-10 and 84138180N are active production components with RoHS compliance certification, ensuring regulatory alignment for industrial applications. The primary distinction lies in the load voltage operating range: the HD48125T-10 extends to 530 V, while the 84138180N operates to 500 V. For applications requiring operation above 500 V, the HD48125T-10 is the appropriate selection. For applications within the 24 V – 500 V range, the 84138180N provides functional equivalence with the additional feature of zero-cross switching in the Crouzet device.

Both components maintain identical current ratings (125 A), circuit topology (SPST-NO), package form factor (hockey puck), and termination methodology (screw terminal), supporting direct mechanical and electrical substitution within the specified voltage envelope.

Frequently Asked Questions (FAQ)

Q: Can the 84138180N (Crouzet) be used as a direct replacement for the HD48125T-10 (Sensata-Crydom)?

A: Yes, within the load voltage range of 24 V – 500 V. Both devices share identical circuit configuration (SPST-NO), current rating (125 A), package form factor (hockey puck), and termination style (screw terminal). The primary limitation is the 500 V upper voltage boundary of the Crouzet part; applications requiring operation above 500 V must use the HD48125T-10.

Q: What is the significance of the zero-cross feature in the 84138180N?

A: Zero-cross switching is a control feature that synchronizes relay activation with the AC line voltage zero-crossing point, reducing electromagnetic interference and switching transients. This feature does not affect mechanical or electrical interchangeability but may provide operational benefits in noise-sensitive applications.

Q: Are both parts mechanically compatible with existing mounting infrastructure?

A: Yes. Both the HD48125T-10 and 84138180N use identical hockey puck form factor packaging and chassis mount configuration, ensuring mechanical compatibility with standard mounting hardware and thermal management solutions.

Q: What is the minimum input voltage requirement for each part?

A: The HD48125T-10 operates from 3 V – 32 VDC, while the 84138180N operates from 4 V – 32 VDC. For control circuits operating below 4 V, the HD48125T-10 is required.

Q: Do both parts meet current RoHS compliance standards?

A: Yes. Both the HD48125T-10 and 84138180N are certified RoHS compliant, meeting current regulatory requirements for hazardous substance restrictions in electronic components.