EZ240D18 Solid State Relay - Equivalent & Substitute Parts

Part Overview

The EZ240D18 is an active, ROHS3-compliant solid state relay manufactured by Sensata-Crydom. This SPST-NO (1 Form A) module is designed for AC load switching with zero-cross detection, rated for 18A at 24-280V output with 3-15VDC input control. The part is available in bulk packaging with 730 units in current inventory.

Substitute parts are identified when equivalent functional performance can be maintained within the specified electrical and mechanical parameters of this product category, ensuring continuity of supply and design flexibility.

Substiute Parts

EZ240D18

Sensata-CrydomIn Stock: 809EZ240D18 Datasheet

Current PartRFQ

ASR-SIM240D25ZW-LQ

Altran Magnetics, LLCIn Stock: 978ASR-SIM240D25ZW-LQ Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The ASR-SIM240D25ZW-LQ qualifies as a substitute based on the following alignment of critical parameters:

• Circuit Configuration: Both parts implement SPST-NO (1 Form A) switching topology
• Output Type: Both feature AC switching with zero-cross detection
• Load Voltage Range: Both support 24 V ~ 280 V output
• Mounting Type: Both are chassis-mount configurations
• Termination Interface: Both utilize quick-connect termination systems
• Compliance: Both are ROHS3 compliant and REACH unaffected
• Product Status: Both are active products with current inventory

The substitute part operates within a higher input voltage range (4 ~ 32VDC versus 3 ~ 15VDC) and provides increased load current capacity (25A versus 18A), making it suitable for applications requiring the EZ240D18 specifications while offering additional performance margin.

Parameter Comparison

Engineering Selection Recommendations

Both the EZ240D18 and ASR-SIM240D25ZW-LQ are active products with current manufacturing status and full ROHS3 compliance. The ASR-SIM240D25ZW-LQ provides equivalent switching functionality across the specified load voltage range with extended input voltage tolerance and higher current capacity. Selection between these parts should account for physical form factor requirements, as the EZ240D18 uses a Module package while the ASR-SIM240D25ZW-LQ uses a Hockey Puck configuration. Both parts maintain identical circuit topology, output switching characteristics, and regulatory compliance status.

Frequently Asked Questions (FAQ)

Q: Can the ASR-SIM240D25ZW-LQ directly replace the EZ240D18 in existing designs?

A: Functional substitution is supported based on identical SPST-NO circuit configuration, AC zero-cross output type, and matching 24-280V load voltage range. Physical form factor differences (Module versus Hockey Puck) and termination style variations require mechanical design review.

Q: What are the key differences between these parts?

A: The primary differences are manufacturer (Sensata-Crydom versus Altran Magnetics), input voltage range (3-15VDC versus 4-32VDC), load current rating (18A versus 25A), package form factor (Module versus Hockey Puck), and termination configuration (0.250" quick connect versus quick connect/disconnect).

Q: Are both parts RoHS compliant?

A: Both the EZ240D18 and ASR-SIM240D25ZW-LQ are ROHS3 compliant and REACH unaffected.

Q: What is the significance of the higher current rating on the substitute part?

A: The ASR-SIM240D25ZW-LQ is rated for 25A load current compared to the EZ240D18's 18A rating. This provides additional performance margin for applications operating at or near the 18A specification of the original part.

Q: Do the input voltage ranges overlap?

A: The EZ240D18 operates at 3-15VDC input, while the ASR-SIM240D25ZW-LQ operates at 4-32VDC input. The substitute part's range encompasses the upper portion of the original part's range, with extended capability at higher input voltages.