MPF240D4 Equivalent & Substitute Parts

Part Overview

The MPF240D4 is a solid-state relay (SSR) manufactured by Sensata-Crydom, configured as a SPST-NO (Single Pole Single Throw - Normally Open) device with 4-ampere load capacity and AC output with zero-cross switching. The part operates with input voltage range of 4–10 VDC and supports load voltages from 12 V to 280 V. This component is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing system support and new design implementations.

Substiute Parts

MPF240D4

Sensata-CrydomIn Stock: 1046MPF240D4 Datasheet

Current PartRFQ

MP240D4

Sensata-CrydomIn Stock: 1966MP240D4 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MPF240D4 is based on functional equivalence across the following critical parameters:

• Circuit Configuration: Must maintain SPST-NO (1 Form A) topology
• Output Type: Must support AC output with zero-cross switching
• Load Current Rating: Must sustain 4 A minimum
• Package Type: Must use 4-SIP form factor for PCB compatibility
• Mounting Type: Must support through-hole installation
• Termination Style: Must use PC Pin configuration

The substitute part MP240D4 meets these criteria while offering an extended input voltage range (3–32 VDC versus 4–10 VDC) and an elevated minimum load voltage specification (24 V versus 12 V). These differences represent functional improvements rather than incompatibilities, as the substitute accommodates a broader operational envelope.

Parameter Comparison

Engineering Selection Recommendations

The MP240D4 is the direct substitute for the obsolete MPF240D4. Both components are manufactured by Sensata-Crydom and share identical circuit topology, output switching characteristics, load current capacity, and physical form factor. The MP240D4 maintains active product status, ensuring continued availability and supply chain reliability.

The MP240D4 exhibits an expanded input voltage operating range (3–32 VDC) compared to the MPF240D4 (4–10 VDC), providing greater flexibility in control signal sourcing. The minimum load voltage specification increases from 12 V to 24 V; this parameter must be verified against system load voltage requirements prior to substitution.

Both components carry identical compliance certifications: REACH Unaffected status and EAR99 ECCN classification. The MP240D4 additionally carries RoHS3 compliance certification.

Frequently Asked Questions (FAQ)

Q: Can the MP240D4 directly replace the MPF240D4 in existing designs?

A: Yes, provided the system load voltage operates at 24 V or higher. The MPF240D4 supports loads as low as 12 V, while the MP240D4 minimum is 24 V. If the original design uses load voltages between 12 V and 24 V, substitution is not permissible.

Q: What is the significance of the expanded input voltage range in the MP240D4?

A: The MP240D4 accepts control signals from 3–32 VDC, whereas the MPF240D4 requires 4–10 VDC. This broader range accommodates a wider variety of control circuit designs and power supply specifications without requiring additional signal conditioning.

Q: Are the physical dimensions and PCB footprints identical?

A: Yes. Both components use the 4-SIP package type with PC Pin termination and through-hole mounting. PCB layouts designed for the MPF240D4 require no modification to accommodate the MP240D4.

Q: What compliance differences exist between these parts?

A: Both parts are REACH Unaffected and carry EAR99 ECCN classification. The MP240D4 additionally meets RoHS3 compliance requirements, reflecting its active product status.

Q: Are there other substitute options beyond MP240D4?

A: The MP240D4 datasheet references additional substitutes: GNB4D2A and GA8-6B02. Compatibility with these alternatives requires independent verification against the specific electrical and mechanical requirements of your application.