SSRT-240A25 Equivalent & Substitute Parts

Part Overview

The SSRT-240A25 is a solid-state relay (SSR) manufactured by TE Connectivity Potter & Brumfield Relays, configured as a single-pole single-throw normally open (SPST-NO) device with a 25 ampere load capacity. This component operates across input voltages of 90 to 280 VAC and supports load voltages ranging from 24 to 280 volts. The relay features zero-cross switching for AC output control and is housed in a hockey puck package with screw terminal connections suitable for chassis mounting applications.

The SSRT-240A25 maintains active product status and is ROHS3 compliant. Equivalent and substitute parts are identified to provide procurement flexibility, support supply chain continuity, and accommodate application-specific requirements where direct part availability may be limited.

Substiute Parts

SSRT-240A25

TE Connectivity Potter & Brumfield RelaysIn Stock: 780SSRT-240A25 Datasheet

Current PartRFQ

84134911

Sensata-CrydomIn Stock: 87784134911 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SSRT-240A25 is determined by strict equivalence across the following critical parameters:

Electrical Specifications:

• Circuit configuration must be SPST-NO (1 Form A)
• Load current rating must be 25 amperes
• Input voltage range must accommodate 90 to 280 VAC
• Load voltage range must support 24 to 280 volts
• Output type must be AC with zero-cross switching capability

Mechanical and Physical Requirements:

• Mounting type must be chassis mount
• Termination style must be screw terminal
• Package must be hockey puck form factor

Compliance and Status:

• Product must maintain active status
• RoHS compliance is required

The substitute part 84134911 (Sensata-Crydom GNA5 series) meets all specified electrical and mechanical parameters, enabling direct functional replacement in applications requiring SSRT-240A25 performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

SSRT-240A25 (Primary Selection)

The SSRT-240A25 maintains active product status with ROHS3 compliance and REACH affected designation. This part is the original specification component and should be selected when supply availability permits and when ROHS3 compliance is explicitly required by application or regulatory standards.

84134911 (Sensata-Crydom GNA5 Series - Substitute Selection)

The 84134911 provides functional equivalence across all critical electrical and mechanical parameters. This substitute maintains active product status and RoHS compliance. The GNA5 series output type is specified as AC without explicit zero-cross notation; however, the electrical performance parameters remain equivalent for applications requiring 25 ampere SPST-NO solid-state relay functionality across the specified voltage ranges. Selection of this substitute is appropriate when supply constraints affect SSRT-240A25 availability or when Sensata-Crydom component qualification is required by procurement specifications.

Both parts are classified under ECCN EAR99 and are suitable for chassis-mounted applications utilizing screw terminal connections in hockey puck form factor installations.

Frequently Asked Questions (FAQ)

Q: Can the 84134911 directly replace the SSRT-240A25 in existing applications?

A: Yes. Both components share identical circuit configuration (SPST-NO), load current rating (25 A), input voltage range (90–280 VAC), load voltage range (24–280 V), mounting type (chassis mount), termination style (screw terminal), and package form factor (hockey puck). Electrical and mechanical compatibility is established across all specified parameters.

Q: What is the difference in output type specification between these parts?

A: The SSRT-240A25 specifies "AC, Zero Cross" output type, while the 84134911 specifies "AC" output type. Both components are rated for AC load switching. Zero-cross switching is a control feature that synchronizes switching with AC waveform zero-crossing points to reduce electromagnetic interference. The functional performance for 25 ampere AC load switching remains equivalent.

Q: Are there compliance differences between these substitutes?

A: The SSRT-240A25 is ROHS3 compliant, while the 84134911 is RoHS compliant. Both meet RoHS requirements. The SSRT-240A25 carries REACH affected designation. Both components are classified as EAR99 for export control purposes. Application-specific compliance requirements should be verified against procurement standards.

Q: Can these parts be used interchangeably in the same circuit board layout?

A: Yes. Both components utilize identical chassis mount configuration, screw terminal termination, and hockey puck package form factor. Physical mounting and electrical connection points are compatible, enabling direct substitution in existing mechanical and electrical designs.

Q: What inventory status should be considered for procurement decisions?

A: The SSRT-240A25 has 769 pieces in stock, while the 84134911 has 780 pieces in stock. Both parts maintain adequate inventory levels for procurement planning. Selection should be based on application requirements, compliance specifications, and supplier qualification criteria rather than inventory availability alone.

Q: Are there any voltage or current derating considerations between these parts?

A: No. Both components are rated identically for 25 ampere load current and support the full 24 to 280 volt load voltage range with 90 to 280 VAC input voltage. No derating or operational limitations apply to substitution based on the provided specifications.