M2018ES2A25 Toggle Switch SPDT Equivalent & Substitute Parts

Part Overview

The M2018ES2A25 is a through-hole mounted toggle switch manufactured by NKK Switches with SPDT (Single Pole Double Throw) circuit configuration and momentary-off-momentary (Mom-Off-Mom) switching function. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.

The M2018ES2A25 operates at 6A AC / 3A DC with voltage ratings of 125V AC and 30V DC. It features a flatted brass actuator with chrome plating, epoxy sealed terminals, and a circular 6.50mm panel cutout. The switch is rated for 25,000 electrical cycles across an operating temperature range of -30°C to 85°C.

Substiute Parts

M2018ES2A25

NKK SwitchesIn Stock: 1056M2018ES2A25 Datasheet

Current PartRFQ

M2018ES2A13

NKK SwitchesIn Stock: 1133M2018ES2A13 Datasheet

MFR RecommendedRFQ

7105P3Y9V6GE

C&KIn Stock: 11057105P3Y9V6GE Datasheet

SimilarRFQ

7105P3Y9V6QE

C&KIn Stock: 8507105P3Y9V6QE Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the M2018ES2A25 are identified based on the following critical parameters that determine functional and mechanical compatibility:

Primary Compatibility Criteria:

• Circuit configuration (SPDT)
• Switch function (Mom-Off-Mom)
• Mounting type (Through Hole)
• Termination style (PC Pin)
• Operating temperature range (-30°C to 85°C)
• Actuator length (11.40mm nominal)
• Panel cutout dimensions (Circular 6.50mm)

Electrical Performance Criteria:

• Current rating must meet or exceed application requirements
• Voltage ratings must support the intended circuit voltage
• Epoxy sealed terminals for environmental protection

Two substitute categories are identified:

Category 1 - Direct NKK Manufacturer Substitute: M2018ES2A13 maintains identical electrical specifications, mechanical dimensions, and environmental ratings while offering active product status and improved availability.

Category 2 - Cross-Manufacturer Alternatives: C&K 7105P3Y9V6GE and 7105P3Y9V6QE provide functional equivalence with slightly reduced current ratings (5A AC/DC vs. 6A AC / 3A DC) and enhanced electrical life (40,000 cycles vs. 25,000 cycles). These parts maintain identical circuit configuration, mounting type, actuator geometry, and operating temperature range.

Parameter Comparison

Engineering Selection Recommendations

M2018ES2A13 (NKK Switches): This part is the preferred substitute for direct replacement applications. It maintains identical electrical specifications, mechanical dimensions, and environmental performance as the M2018ES2A25 while offering active product status and improved long-term availability. Both parts share the same base product number (M2018ES) and are manufactured by the same supplier, ensuring design continuity and supply chain stability.

7105P3Y9V6GE and 7105P3Y9V6QE (C&K): These cross-manufacturer alternatives are suitable for applications where the reduced current rating (5A AC/DC) is acceptable. Both parts provide enhanced electrical life (40,000 cycles) and maintain all critical mechanical and environmental parameters. The actuator length variance (11.43mm vs. 11.40mm) is within typical mechanical tolerance for panel-mounted applications. Both C&K alternatives carry ROHS3 compliance and active product status.

Selection between the two C&K alternatives should be based on packaging requirements and inventory availability, as electrical and mechanical specifications are identical.

Frequently Asked Questions (FAQ)

Q: Can M2018ES2A13 be used as a direct drop-in replacement for M2018ES2A25?

A: Yes. The M2018ES2A13 maintains identical electrical ratings (6A AC / 3A DC, 125V AC / 30V DC), mechanical dimensions (11.40mm actuator length, 6.50mm panel cutout), circuit configuration (SPDT Mom-Off-Mom), and operating temperature range (-30°C to 85°C). No circuit modifications are required.

Q: What are the limitations of using C&K 7105P3Y9V6GE or 7105P3Y9V6QE as substitutes?

A: The C&K alternatives have reduced AC current rating (5A vs. 6A) and reduced DC voltage rating (28V vs. 30V). Applications operating at or near the original 6A AC or 30V DC specifications must verify that the reduced ratings remain acceptable. The actuator length is 11.43mm compared to 11.40mm, a 0.03mm difference that is typically accommodated by standard panel cutout tolerances.

Q: Are there compliance differences between the main part and substitutes?

A: All parts are RoHS compliant. The M2018ES2A25 and C&K alternatives carry ROHS3 certification, while M2018ES2A13 carries RoHS certification. All parts have MSL rating of 1 (Unlimited) and ECCN classification of EAR99. The C&K alternatives are REACH Affected, while the NKK parts are REACH Unaffected.

Q: What is the difference between 7105P3Y9V6GE and 7105P3Y9V6QE?

A: Both parts have identical electrical and mechanical specifications. The difference is in packaging format (both listed as Bulk) and inventory availability. Selection should be based on procurement requirements and stock levels.

Q: How do electrical life ratings affect part selection?

A: The M2018ES2A25 and M2018ES2A13 are rated for 25,000 electrical cycles, while the C&K alternatives are rated for 40,000 cycles. For applications with high switching frequency or extended service life requirements, the C&K alternatives provide enhanced durability. For standard applications, both ratings are adequate.

Q: Are there mechanical compatibility concerns with the 0.03mm actuator length difference?

A: No. The 11.43mm actuator length of the C&K parts versus 11.40mm of the NKK parts falls within standard mechanical tolerances for panel-mounted toggle switches. Panel cutout dimensions and bushing thread specifications remain compatible.