HA4850GH Solid State Relay - Equivalent & Substitute Parts

Part Overview

The HA4850GH is an active Solid State Relay (SSR) manufactured by Sensata-Crydom, configured as a SPST-NO (1 Form A) device in a Hockey Puck package. This relay is designed for AC load switching applications with zero-cross detection, operating across a wide input voltage range of 90–280VAC and supporting output loads from 48V to 530V at 50A capacity. The device is RoHS compliant and carries unlimited moisture sensitivity rating (MSL 1). Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter tolerances for this product category.

Substiute Parts

HA4850GH

Sensata-CrydomIn Stock: 835HA4850GH Datasheet

Current PartRFQ

84138123N

CrouzetIn Stock: 108984138123N Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the HA4850GH is determined by the following critical parameters:

• Circuit Configuration: Must be SPST-NO (1 Form A) to maintain identical switching topology
• Output Type: Must be AC with zero-cross detection to preserve load switching characteristics
• Load Current Rating: Must be rated for 50A minimum
• Voltage - Load Range: Must encompass or exceed the 48V–530V operating window
• Voltage - Input Range: Must accommodate the 90–280VAC input specification
• Package / Case: Must be Hockey Puck form factor for mechanical compatibility
• Mounting Type: Must be Chassis Mount for installation compatibility
• Termination Style: Must be Screw Terminal for connection compatibility
• Compliance: Must maintain RoHS compliance status

The identified substitute part meets all these criteria within the allowed electrical and mechanical parameter tolerances for this SSR category.

Parameter Comparison

Engineering Selection Recommendations

Both the HA4850GH and 84138123N are active products with RoHS compliance and identical MSL ratings. The primary distinction lies in voltage parameter ranges:

The HA4850GH supports input voltage from 90–280VAC and load voltage from 48–530V. The 84138123N supports input voltage from 20–260VAC/DC and load voltage from 24–500V. The HA4850GH provides a higher upper load voltage limit (530V versus 500V), while the 84138123N offers a lower input voltage floor (20VAC/DC versus 90VAC) and lower load voltage floor (24V versus 48V).

Selection between these parts depends on the specific voltage requirements of the application. Both devices maintain identical circuit configuration, output type, current rating, mounting type, termination style, and package form factor. Both are compliant with RoHS requirements and carry unlimited moisture sensitivity ratings.

Frequently Asked Questions (FAQ)

Q: Can the 84138123N replace the HA4850GH in all applications?

A: Substitution is valid only when the application voltage requirements fall within the overlapping ranges of both devices. The HA4850GH supports higher load voltages (up to 530V), while the 84138123N supports lower input voltages (down to 20VAC/DC). Verify that your application's input and load voltage specifications are compatible with the substitute part's rated ranges.

Q: Are the mechanical packages identical?

A: Yes. Both devices use the Hockey Puck package form factor with Chassis Mount configuration and Screw Terminal termination. Physical installation compatibility is maintained.

Q: Do both parts have the same switching characteristics?

A: Yes. Both devices are configured as SPST-NO (1 Form A) relays with AC output type and zero-cross detection. Switching topology and control characteristics are identical.

Q: What compliance certifications apply to both parts?

A: Both the HA4850GH and 84138123N are RoHS compliant and carry MSL 1 (Unlimited) moisture sensitivity ratings. The 84138123N additionally carries REACH Unaffected status.

Q: Is the 50A load current rating identical?

A: Yes. Both devices are rated for 50A load current capacity.