HA4850-10 Solid State Relay SPST-NO 50A Equivalent & Substitute Parts

Part Overview

The HA4850-10 is an active Solid State Relay (SSR) manufactured by Sensata-Crydom, configured as a SPST-NO (1 Form A) relay in a Hockey Puck package. This component functions as an AC output relay with a 50A load current capacity and operates across a 48V to 530V load voltage range. The device is designed for chassis mount applications with screw terminal connections. Finding equivalent and substitute parts becomes necessary when managing inventory constraints, lead time requirements, or when sourcing from alternative suppliers while maintaining functional compatibility.

Substiute Parts

HA4850-10

Sensata-CrydomIn Stock: 1188HA4850-10 Datasheet

Current PartRFQ

84137321N

CrouzetIn Stock: 91084137321N Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the HA4850-10 is determined by strict equivalence across the following critical parameters:

• Circuit Configuration: Must be SPST-NO (1 Form A)
• Output Type: Must be AC
• Load Current: Must be rated for 50 A
• Package Type: Must be Hockey Puck
• Mounting Type: Must be Chassis Mount
• Termination Style: Must be Screw Terminal

The substitute part 84137321N (Crouzet GN series) meets all these criteria. While the load voltage range differs (48V ~ 660V versus 48V ~ 530V), the substitute part provides a broader operating envelope that encompasses the original specification. The input voltage range also differs slightly (90 ~ 260VAC versus 90 ~ 280VAC), representing a narrower input specification on the substitute part.

Parameter Comparison

Engineering Selection Recommendations

Both the HA4850-10 and 84137321N are active products with RoHS compliance certification. The Crouzet 84137321N provides functional equivalence with identical circuit configuration, output type, load current rating, and package specifications. The extended load voltage range (660V maximum versus 530V maximum) on the substitute part offers additional operational margin without compromising compatibility. The input voltage specification on the substitute part (90 ~ 260VAC) is narrower than the original (90 ~ 280VAC); applications requiring input voltages between 260VAC and 280VAC must use the HA4850-10. Both components are suitable for direct substitution in applications operating within the 90 ~ 260VAC input range and 48V ~ 530V load voltage range.

Frequently Asked Questions (FAQ)

Q: Can the Crouzet 84137321N directly replace the HA4850-10 in all applications?

A: Direct replacement is valid for applications operating within the overlapping specifications: input voltage 90 ~ 260VAC and load voltage 48V ~ 530V. Applications requiring input voltages above 260VAC must use the original HA4850-10.

Q: What is the significance of the different load voltage ranges?

A: The HA4850-10 operates up to 530V, while the 84137321N operates up to 660V. The substitute part's higher maximum voltage does not affect compatibility in applications using the original 530V specification. Both parts function identically within the 48V ~ 530V range.

Q: Are both parts available in the same packaging?

A: Yes. Both the HA4850-10 and 84137321N use Hockey Puck packaging with chassis mount configuration and screw terminal connections, ensuring mechanical and electrical compatibility.

Q: What compliance certifications apply to both parts?

A: Both parts are RoHS Compliant and carry ECCN EAR99 classification. The Crouzet part additionally carries REACH Unaffected status.

Q: How do the input voltage specifications differ between these parts?

A: The HA4850-10 accepts input voltage from 90 ~ 280VAC, while the 84137321N accepts 90 ~ 260VAC. The substitute part has a narrower input specification by 20VAC at the upper limit.