H12WD4825PG Solid State Relay - Equivalent & Substitute Parts

Part Overview

The H12WD4825PG 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 package. This component functions as a 1 Form A relay with AC zero-cross output capability, designed for industrial switching applications requiring galvanic isolation between control and load circuits. The part is currently Active in product status with 4850 units available in inventory. Substitute parts are identified when original manufacturer stock becomes unavailable, when supply chain constraints occur, or when equivalent performance specifications are required for system redundancy and procurement flexibility.

Substiute Parts

H12WD4825PG

Sensata-CrydomIn Stock: 4936H12WD4825PG Datasheet

Current PartRFQ

84137110N

CrouzetIn Stock: 110684137110N Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the H12WD4825PG is determined by strict equivalence across the following critical parameters:

• Circuit Configuration: SPST-NO (1 Form A) topology
• Output Type: AC with Zero Cross switching capability
• Input Voltage Range: 4 ~ 32 VDC
• Load Voltage Range: 48 V ~ 660 V
• Load Current Rating: 25 A
• Package Type: Hockey Puck form factor
• Termination: Screw Terminal
• Mounting: Chassis Mount

The substitute part 84137110N (Crouzet GN series) meets all electrical and mechanical parameters required for direct substitution. Both parts operate within identical voltage and current specifications, utilize the same package geometry, and employ equivalent termination methods. Compliance certifications differ between manufacturers but both parts maintain active product status and meet applicable regulatory requirements for their respective jurisdictions.

Parameter Comparison

Engineering Selection Recommendations

Both the H12WD4825PG and 84137110N are Active products suitable for direct substitution in applications requiring 25 A solid state relay switching at 48-660 V load voltage with 4-32 VDC control input. The H12WD4825PG carries ROHS3 Compliant certification and is REACH Affected, while the 84137110N is RoHS Compliant and REACH Unaffected. Selection between these parts should be based on supply availability, procurement lead times, and regulatory requirements specific to the end application's geographic market. Both parts are classified under ECCN EAR99 and HTSUS 8536.49.0080. The primary operational difference is packaging format: the H12WD4825PG is supplied in Bulk packaging, while the 84137110N is supplied in Box packaging. This distinction affects inventory management and handling procedures but does not impact electrical or mechanical performance.

Frequently Asked Questions (FAQ)

Q: Can the Crouzet 84137110N directly replace the Sensata-Crydom H12WD4825PG in existing designs?

A: Yes. Both parts are electrically and mechanically equivalent across all critical parameters: SPST-NO circuit configuration, AC zero-cross output, 4-32 VDC input, 48-660 V load voltage, 25 A current rating, Hockey Puck package, screw terminal termination, and chassis mount configuration.

Q: Are there compliance differences between these two parts?

A: Yes. The H12WD4825PG is ROHS3 Compliant and REACH Affected. The 84137110N is RoHS Compliant and REACH Unaffected. Both parts carry EAR99 ECCN classification. Compliance selection depends on the end product's regulatory requirements and target markets.

Q: Does packaging format affect compatibility?

A: No. The H12WD4825PG (Bulk packaging) and 84137110N (Box packaging) are functionally identical. Packaging differences affect only storage, handling, and inventory management procedures, not electrical or mechanical performance.

Q: What is the significance of the Hockey Puck package type?

A: The Hockey Puck package is a standardized form factor for industrial solid state relays, providing a compact cylindrical design optimized for chassis mounting with screw terminal connections. Both substitute parts utilize this identical package geometry, ensuring mechanical interchangeability in mounting applications.

Q: Are both parts suitable for zero-cross switching applications?

A: Yes. Both the H12WD4825PG and 84137110N feature AC zero-cross output capability, which synchronizes relay switching to AC voltage zero-crossing points to minimize electromagnetic interference and reduce switching transients in AC load circuits.