HD4825P Equivalent & Substitute Parts

Part Overview

The HD4825P is a solid-state relay (SSR) manufactured by Sensata-Crydom, classified as SPST-NO (1 Form A) in a hockey puck form factor. This component is designed for AC load switching applications with zero-cross detection capability. The part is currently active in production with full RoHS compliance and unlimited moisture sensitivity rating. Equivalent and substitute parts are identified when they maintain functional compatibility across critical electrical and mechanical parameters while meeting the same regulatory standards.

Substiute Parts

HD4825P

Sensata-CrydomIn Stock: 869HD4825P Datasheet

Current PartRFQ

84138010N

CrouzetIn Stock: 86484138010N Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the HD4825P is determined by the following critical parameters:

• Circuit Configuration: Must be SPST-NO (1 Form A) to maintain identical switching logic
• Output Type: Must be AC with zero-cross detection for synchronized load switching
• Load Current Rating: Must be rated for 25 A minimum
• Input Voltage Compatibility: Must accept 4 – 32 VDC control signal
• Package / Case: Must be hockey puck form factor for mechanical fit
• Termination Style: Must use screw terminal for connection compatibility
• Mounting Type: Must support chassis mount installation
• Regulatory Compliance: Must maintain RoHS compliance status

The substitute part 84138010N (Crouzet, GN+ series) meets all mandatory substitution criteria. The primary difference is the load voltage range specification (12 – 270 V versus 48 – 530 V), which represents a narrower operating window but does not prevent functional substitution in applications within the overlapping voltage range (48 – 270 V).

Parameter Comparison

Engineering Selection Recommendations

Both the HD4825P and 84138010N are active production components with full RoHS compliance and identical regulatory classification (ECCN: EAR99). Selection between these parts should be based on application load voltage requirements:

• HD4825P: Select when load voltage operation extends above 270 V or below 48 V is required, as this part supports the full 48 – 530 V range
• 84138010N: Select when load voltage operation remains within the 12 – 270 V range, as this part meets all functional requirements within this narrower specification window

Both components share identical input control voltage, load current capacity, circuit topology, and mechanical form factor. Substitution is valid only when the application load voltage falls within the overlapping specification range of 48 – 270 V.

Frequently Asked Questions (FAQ)

Q: Can the 84138010N replace the HD4825P in all applications?

A: No. The 84138010N has a maximum load voltage rating of 270 V, while the HD4825P supports up to 530 V. Substitution is valid only for applications where the load voltage does not exceed 270 V and remains above 48 V.

Q: Are the input control voltage requirements identical?

A: Yes. Both parts accept 4 – 32 VDC input control voltage and are functionally equivalent in this parameter.

Q: Do both parts use the same physical package?

A: Yes. Both the HD4825P and 84138010N use the hockey puck form factor with screw terminal connections, ensuring mechanical and electrical compatibility in chassis mount installations.

Q: What is the significance of the zero-cross output type?

A: Zero-cross detection ensures the SSR switches AC loads at the zero-voltage point of the AC waveform, reducing electromagnetic interference and extending load life. Both parts incorporate this feature identically.

Q: Are there differences in regulatory compliance between these parts?

A: No. Both parts are RoHS compliant and classified under ECCN: EAR99, meeting identical regulatory requirements.

Q: What is the load current capacity for both parts?

A: Both the HD4825P and 84138010N are rated for 25 A continuous load current.