Sensata-Crydom D2402 Solid State Relay SPST-NO 2A 24-280V Equivalent & Substitute Parts

Part Overview

The Sensata-Crydom D2402 is a solid state relay (SSR) with SPST-NO (1 Form A) configuration, rated for 2A load current at 24-280V AC output with zero-cross switching. The part operates with 3-32VDC input control voltage and features screw terminal connections in a hockey puck package for chassis mounting.

The D2402 is classified as obsolete. Equivalent and substitute parts are necessary to maintain system functionality and ensure continued availability for replacement and new designs.

Key Parameters

Parameter	D2402 Specification
Circuit Configuration	SPST-NO (1 Form A)
Output Type	AC, Zero Cross
Voltage - Input	3 ~ 32VDC
Voltage - Load	24 V ~ 280 V
Load Current	2 A
Termination Style	Screw Terminal
Package / Case	Hockey Puck
Mounting Type	Chassis Mount
Series	1

Substitute Part Grouping Explanation

Substitution for the D2402 is determined by the following critical parameters that must remain constant or be compatible with the original application:

Circuit configuration: SPST-NO (1 Form A) topology
Output type: AC with zero-cross switching capability
Input voltage range: 3 ~ 32VDC control voltage
Load voltage range: 24 V ~ 280 V
Package type: Hockey puck form factor
Termination: Screw terminal connections
Mounting: Chassis mount orientation

Load current rating is the primary variable parameter. Substitute parts with equal or higher current ratings (10A or 25A) are electrically compatible with the 2A application, as they can safely handle the lower current demand while maintaining all other electrical and mechanical specifications.

Parameter Comparison

Parameter	D2402	D2410	84134000	SSR-240D25	SSRT-240D10
Manufacturer	Sensata-Crydom	Sensata-Crydom	Sensata-Crydom	TE Connectivity Potter & Brumfield	TE Connectivity Potter & Brumfield
Circuit Configuration	SPST-NO (1 Form A)	SPST-NO (1 Form A)	SPST-NO (1 Form A)	SPST-NO (1 Form A)	SPST-NO (1 Form A)
Output Type	AC, Zero Cross	AC, Zero Cross	AC, Zero Cross	AC, Zero Cross	AC, Zero Cross
Voltage - Input	3 ~ 32VDC	3 ~ 32VDC	3 ~ 32VDC	3 ~ 32VDC	3 ~ 32VDC
Voltage - Load	24 V ~ 280 V	24 V ~ 280 V	24 V ~ 280 V	24 V ~ 280 V	24 V ~ 280 V
Load Current	2 A	10 A	10 A	25 A	10 A
Termination Style	Screw Terminal	Screw Terminal	Screw Terminal	Screw Terminal	Screw Terminal
Package / Case	Hockey Puck	Hockey Puck	Hockey Puck	Hockey Puck	Hockey Puck
Mounting Type	Chassis Mount	Chassis Mount	Chassis Mount	Chassis Mount	Chassis Mount
Product Status	Obsolete	Active	Active	Active	Active
RoHS Status	Not specified	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	RoHS non-compliant

Engineering Selection Recommendations

All substitute parts maintain electrical and mechanical compatibility with the D2402 across the critical parameters: circuit topology, input/output voltage ranges, termination style, package form factor, and mounting configuration.

D2410 (Sensata-Crydom): Active product status with ROHS3 compliance. Rated for 10A load current. Suitable for direct replacement in applications requiring continued Sensata-Crydom sourcing.

84134000 (Sensata-Crydom): Active product status with ROHS3 compliance. Rated for 10A load current. Series GN designation. Recommended by manufacturer as equivalent.

SSR-240D25 (TE Connectivity Potter & Brumfield): Active product status with ROHS3 compliance. Rated for 25A load current, providing maximum current margin. Suitable for applications where higher current capacity is beneficial.

SSRT-240D10 (TE Connectivity Potter & Brumfield): Active product status. Rated for 10A load current. RoHS non-compliant status. Suitable for applications where RoHS compliance is not required.

Frequently Asked Questions (FAQ)

Q: Can a 10A or 25A rated SSR replace a 2A rated D2402?

A: Yes. The substitute parts with 10A and 25A ratings are electrically compatible with 2A applications. Higher current ratings indicate greater capacity and do not create incompatibility when operating at lower current levels. All other electrical parameters (input voltage, output voltage, switching type, circuit configuration) remain identical.

Q: What is the difference between Sensata-Crydom and TE Connectivity substitute options?

A: Both manufacturers provide SPST-NO hockey puck SSRs with identical electrical specifications for this application. Selection depends on supply chain requirements, compliance certifications, and sourcing preferences. Sensata-Crydom options (D2410, 84134000) maintain the original manufacturer lineage. TE Connectivity options (SSR-240D25, SSRT-240D10) provide alternative sourcing from a different manufacturer.

Q: Are all substitute parts available in the same package configuration?

A: Yes. All substitute parts use the hockey puck package form factor with screw terminal connections and chassis mount orientation, ensuring mechanical compatibility with the original D2402 mounting and connection scheme.

Q: Which substitute part has the best compliance status?

A: D2410, 84134000, and SSR-240D25 all carry ROHS3 compliance certification. SSRT-240D10 is RoHS non-compliant. Selection should align with your system's regulatory and compliance requirements.

Q: What is the inventory status of substitute parts?

A: D2410 has 3400 units in stock. 84134000 has 1030 units in stock. SSR-240D25 has 7366 units in stock. SSRT-240D10 has 995 units in stock. All substitute parts are available as active products.

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