MX1A-F1DW Equivalent & Substitute Parts

Part Overview

The MX1A-F1DW is a pushbutton switch manufactured by Cherry Americas LLC, classified as SPST-NO (Single Pole Single Throw - Normally Open) type. This component is currently listed as obsolete, which necessitates identification of functionally equivalent alternatives for ongoing applications and new designs. The MX1A series represents a established platform within Cherry's pushbutton switch portfolio, enabling direct substitution pathways within the same product family.

Substiute Parts

MX1A-F1DW

Cherry Americas LLCIn Stock: 851MX1A-F1DW Datasheet

Current PartRFQ

MX1A-F1NN

Cherry Americas LLCIn Stock: 1157MX1A-F1NN Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete MX1A-F1DW is determined by the following critical parameters:

• Circuit Configuration: Both parts must maintain SPST-NO (Single Pole Single Throw - Normally Open) topology
• Series Family: Substitutes must belong to the MX series to ensure mechanical and electrical compatibility
• Manufacturer: Cherry Americas LLC maintains consistent design standards across the MX platform
• RoHS Compliance: The substitute must meet or exceed the RoHS compliance level of the original part
• Moisture Sensitivity Level: MSL rating must be equivalent or superior (lower MSL value)

The MX1A-F1NN satisfies all substitution criteria as an active product within the same MX series, maintaining identical circuit configuration and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The MX1A-F1NN is the designated substitute for the obsolete MX1A-F1DW based on the following engineering criteria:

• Product Status Alignment: The MX1A-F1NN maintains active production status, ensuring long-term availability and supply chain continuity
• Compliance Enhancement: The substitute achieves ROHS3 compliance, exceeding the RoHS Compliant status of the original part
• Series Continuity: Both components belong to the MX series, guaranteeing mechanical and electrical interface compatibility
• Circuit Preservation: SPST-NO configuration is maintained across both parts, preserving functional behavior in existing circuit designs

Designs currently utilizing the MX1A-F1DW should transition to the MX1A-F1NN to maintain component availability and regulatory compliance.

Frequently Asked Questions (FAQ)

Q: Can the MX1A-F1NN directly replace the MX1A-F1DW in existing designs?

A: Yes. Both components share identical circuit configuration (SPST-NO), series family (MX), and manufacturer (Cherry Americas LLC). The MX1A-F1NN is specified as the direct substitute for the obsolete MX1A-F1DW.

Q: What are the key differences between these two parts?

A: The MX1A-F1DW is obsolete with limited technical specifications provided. The MX1A-F1NN is an active product with fully documented electrical ratings (10mA at 12V AC/DC), mechanical life (50,000,000 cycles), operating temperature range (-40°C to 70°C), and IP40 ingress protection. Both maintain identical MSL rating and RoHS compliance status.

Q: Are there any packaging or mounting considerations for substitution?

A: The MX1A-F1NN is specified as Through Hole mounting type with PC Pin termination style. Verify that existing PCB designs accommodate Through Hole mounting before implementation. The original MX1A-F1DW mounting specifications are not provided in available documentation.

Q: Does the MX1A-F1NN meet the same compliance requirements?

A: Yes. The MX1A-F1NN achieves ROHS3 compliance, which exceeds the RoHS Compliant status of the MX1A-F1DW. Both components maintain MSL rating of 1 (Unlimited), indicating identical moisture sensitivity performance.

Q: What is the mechanical life expectancy of the substitute part?

A: The MX1A-F1NN is rated for 50,000,000 mechanical cycles. The original MX1A-F1DW mechanical life specification is not documented.