D2W203F Solid State Relay - Equivalent & Substitute Parts

Part Overview

The D2W203F is an active solid state relay (SSR) manufactured by Sensata-Crydom, designed for AC load switching applications. This SPST-NO (1 Form A) relay operates with a 3A load capacity across 24V to 280V AC output ranges, controlled by 3V to 32VDC input signals. The device features zero-cross switching capability and through-hole PC pin termination in a 4-SIP package configuration. Finding equivalent or substitute parts may be necessary due to supply constraints, inventory availability, or specific application requirements while maintaining electrical and mechanical compatibility.

Substiute Parts

D2W203F

Sensata-CrydomIn Stock: 1067D2W203F Datasheet

Current PartRFQ

GA8-6B02

Sensata-CrydomIn Stock: 2086GA8-6B02 Datasheet

MFR RecommendedRFQ

ASR-SD240D3ZW

Altran Magnetics, LLCIn Stock: 934ASR-SD240D3ZW Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the D2W203F is determined by strict alignment across the following critical parameters:

Circuit configuration must remain SPST-NO (1 Form A) to preserve switching topology. Output type must be AC with zero-cross capability to maintain load control characteristics. Load voltage range must encompass or match the 24V to 280V specification. Package and termination must be identical (4-SIP with PC pins) to ensure mechanical and electrical compatibility on existing PCBs. Input voltage range, load current capacity, and compliance certifications (RoHS3, REACH) must be compatible with the application requirements.

The substitute parts GA8-6B02 and ASR-SD240D3ZW meet these criteria with documented variations in input voltage range and load current capacity that remain within acceptable operational parameters for this product category.

Parameter Comparison

Engineering Selection Recommendations

All three parts maintain active product status with full RoHS3 compliance and REACH unaffected designation, ensuring regulatory compatibility across industrial and commercial applications.

GA8-6B02 offers increased load current capacity (4.6A versus 3A) with a marginally reduced input voltage upper limit (28VDC versus 32VDC). This substitute is suitable for applications where the 3A load current of the D2W203F approaches design limits and where input control voltage does not exceed 28VDC.

ASR-SD240D3ZW maintains identical load current (3A) and input voltage range (4 ~ 32VDC) specifications, with the exception of a 1VDC minimum input threshold increase (4VDC versus 3VDC). This substitute is suitable for applications where input control voltage remains above 4VDC and where load current requirements are fixed at 3A.

Frequently Asked Questions (FAQ)

Q: Can GA8-6B02 be used as a direct replacement for D2W203F?

A: GA8-6B02 is mechanically and electrically compatible when input control voltage does not exceed 28VDC. The increased load current rating (4.6A) provides additional margin. Verify that your application control voltage remains within the 3 ~ 28VDC range.

Q: What is the primary difference between ASR-SD240D3ZW and D2W203F?

A: ASR-SD240D3ZW requires a minimum input voltage of 4VDC compared to 3VDC for D2W203F. All other electrical and mechanical parameters are identical. Use this substitute only if your control circuit operates at 4VDC or higher.

Q: Are all three parts pin-compatible?

A: Yes. All three parts use 4-SIP package configuration with PC pin termination, ensuring direct PCB compatibility without layout modifications.

Q: Do all substitute parts meet the same compliance standards?

A: Yes. All parts are ROHS3 compliant and REACH unaffected, maintaining regulatory compliance across equivalent applications.

Q: Which substitute should I select if I need maximum load current capacity?

A: GA8-6B02 provides the highest load current rating at 4.6A. Select this part if your application requires current capacity above 3A and your control voltage remains below 28VDC.