M2018SS4G03 Equivalent & Substitute Parts

Part Overview

The M2018SS4G03 is a miniature toggle switch manufactured by NKK Switches, configured as a Single Pole Double Throw (SPDT) panel mount component with momentary-off-momentary (Mom-Off-Mom) switching function. This part is classified as obsolete, which necessitates identification of equivalent substitute components for ongoing procurement and system maintenance. The switch is rated for 0.4VA at 28V AC/DC with a circular 6.50mm panel cutout and M6 x 0.75 bushing thread, featuring epoxy sealed PC pin termination.

Substiute Parts

M2018SS4G03

NKK SwitchesIn Stock: 972M2018SS4G03 Datasheet

Current PartRFQ

MN18SS4G03

NKK SwitchesIn Stock: 999MN18SS4G03 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the M2018SS4G03 is determined by the following critical parameters:

• Circuit configuration (SPDT)
• Switch function (Mom-Off-Mom)
• Electrical ratings (0.4VA at 28V AC/DC)
• Mounting interface (Panel mount with M6 x 0.75 bushing and 6.50mm circular cutout)
• Termination style (PC Pin)
• Operating temperature range (-30°C ~ 85°C)
• Regulatory compliance (ROHS3)

The substitute part MN18SS4G03 maintains compatibility across these core parameters, enabling direct functional replacement in applications requiring this switch configuration.

Parameter Comparison

Engineering Selection Recommendations

The MN18SS4G03 is designated as an active product with current manufacturing status, whereas the M2018SS4G03 is obsolete. Both components share identical ECCN and HTSUS classifications, indicating equivalent regulatory treatment. The transition from M2018SS4G03 to MN18SS4G03 is supported by the manufacturer's substitution designation and active inventory availability (984 pcs). Selection of the MN18SS4G03 eliminates procurement risk associated with obsolete component sourcing while maintaining compliance with EAR99 export classification requirements.

Frequently Asked Questions (FAQ)

Q: Can MN18SS4G03 directly replace M2018SS4G03 in existing applications?

A: The MN18SS4G03 is designated by the manufacturer as a substitute for M2018SS4G03. Both components share the same ECCN and HTSUS classifications. However, complete electrical and mechanical parameter alignment should be verified against your specific application requirements, as not all parameters for the substitute part are provided in this reference.

Q: What is the primary reason for substitution?

A: The M2018SS4G03 is classified as obsolete. The MN18SS4G03 is an active product with current manufacturing support and available inventory, making it the recommended procurement path for new designs and ongoing system maintenance.

Q: Are there packaging differences between these parts?

A: The M2018SS4G03 is specified with "-" packaging notation, while MN18SS4G03 is supplied in bulk packaging. Packaging format should be confirmed with your procurement requirements.

Q: Do both parts meet the same regulatory standards?

A: Both components share identical ECCN (EAR99) and HTSUS (8536.50.9065) classifications, indicating equivalent regulatory treatment for export and tariff purposes.