Sensata-Crydom D4825 Solid State Relay SPST-NO 25A Equivalent & Substitute Parts

Part Overview

The Sensata-Crydom D4825 is an active solid state relay (SSR) with SPST-NO (1 Form A) configuration, rated for 25A load current and 80–530V AC output voltage. This hockey puck-style relay operates with 3–32VDC input and features zero-cross switching for AC loads. The part is ROHS3 compliant and REACH affected. Equivalent and substitute parts are identified based on matching electrical specifications, mechanical form factor, and compliance certifications to support component procurement flexibility and supply chain continuity.

Substiute Parts

D4825

Sensata-CrydomIn Stock: 1466D4825 Datasheet

Current PartRFQ

84134110

Sensata TechnologiesIn Stock: 71184134110 Datasheet

DirectRFQ

84137110N

CrouzetIn Stock: 110684137110N Datasheet

MFR RecommendedRFQ

SSR-480D25

TE Connectivity Potter & Brumfield RelaysIn Stock: 1026SSR-480D25 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the D4825 is determined by the following critical parameters: SPST-NO circuit configuration, 25A load current rating, AC zero-cross output type, hockey puck form factor, screw terminal termination, and chassis mount orientation. All substitute parts must maintain these specifications. The D4825 operates with a load voltage range of 80–530V. Substitute parts with extended load voltage ranges (48–660V) are electrically compatible because they encompass the D4825 operating window. Input voltage ranges of 3–32VDC and 4–32VDC are functionally equivalent for practical control applications. All identified substitutes meet these criteria and are active products with current manufacturing status.

Parameter Comparison

Engineering Selection Recommendations

All four parts are active products with current manufacturing status. The D4825, 84134110, and SSR-480D25 are ROHS3 compliant. The 84137110N is RoHS compliant. The D4825 and SSR-480D25 are REACH affected; the 84137110N is REACH unaffected. Selection between these substitutes depends on regulatory compliance requirements specific to the end application and geographic market. All parts maintain identical electrical performance within their specified operating ranges and are mechanically interchangeable in chassis-mount installations with screw terminal connections.

Frequently Asked Questions (FAQ)

Q: Can the 84134110 replace the D4825 in all applications? A: The 84134110 is electrically compatible. It maintains the same 25A load current, SPST-NO configuration, and AC zero-cross output. The load voltage range of 48–660V encompasses the D4825 range of 80–530V. Input voltage compatibility is equivalent (4–32VDC vs. 3–32VDC). Both are active products with RoHS compliance. Verify REACH compliance requirements for your application.

Q: What is the difference between the D4825 and SSR-480D25? A: Both parts are ROHS3 compliant and REACH affected. The SSR-480D25 has an extended load voltage range (48–660V) compared to the D4825 (80–530V). Input voltage ranges are identical (3–32VDC). Both support 25A load current with SPST-NO configuration and hockey puck form factor. The SSR-480D25 is manufactured by TE Connectivity; the D4825 by Sensata-Crydom.

Q: Is the 84137110N suitable for REACH-restricted applications? A: The 84137110N is REACH unaffected, making it suitable for applications with REACH compliance requirements. It maintains all electrical specifications of the D4825: 25A load current, SPST-NO configuration, AC zero-cross output, and hockey puck form factor. Input voltage range is 4–32VDC; load voltage range is 48–660V.

Q: Are all substitutes mechanically interchangeable? A: Yes. All substitute parts share identical mounting type (chassis mount), termination style (screw terminal), and package form factor (hockey puck). Physical installation is interchangeable across all four parts.

Q: What determines whether a part can substitute for the D4825? A: Substitution is determined by matching circuit configuration (SPST-NO), load current (25A), output type (AC zero cross), form factor (hockey puck), and termination style (screw terminal). Load voltage ranges must encompass or match the D4825 specification. Input voltage ranges of 3–32VDC and 4–32VDC are functionally equivalent.