M2028SS1W02 Toggle Switch DPDT Equivalent & Substitute Parts

Part Overview

The M2028SS1W02 is a DPDT (Double Pole Double Throw) toggle switch manufactured by NKK Switches, rated for 6A at 125V AC and 3A at 30V DC. This panel-mount switch features a standard round actuator with Mom-Off-Mom switching function and quick connect termination. The product is classified as obsolete, making equivalent and substitute parts necessary for ongoing system maintenance and new design implementations where this switch type is required.

Substiute Parts

M2028SS1W02

NKK SwitchesIn Stock: 1126M2028SS1W02 Datasheet

Current PartRFQ

M2028SS1W01

NKK SwitchesIn Stock: 1042M2028SS1W01 Datasheet

MFR RecommendedRFQ

5247ZABULCSA

APEM Inc.In Stock: 12295247ZABULCSA Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the M2028SS1W02 is determined by the following critical parameters:

Mandatory Matching Parameters:

• Circuit Configuration: DPDT
• Switch Function: Mom-Off-Mom
• Current Rating: Minimum 6A AC / 3A DC
• Voltage Rating: Minimum 125V AC / 30V DC
• Mounting Type: Panel Mount
• Panel Cutout Dimensions: Circular - 6.50mm Dia
• Bushing Thread: 1/4-40
• Actuator Type: Standard Round
• Actuator Length: 10.50mm

Allowable Variations:

• Termination Style: Different connector types acceptable if mechanical fit permits
• Operating Temperature Range: May exceed specified range
• Electrical Life: May exceed specified cycles
• Actuator Material: Variations acceptable if mechanical properties maintained
• Product Status: Active or obsolete acceptable

Two substitute parts meet these criteria: M2028SS1W01 (NKK Switches, manufacturer recommended) and 5247ZABULCSA (APEM Inc., similar specification).

Parameter Comparison

Engineering Selection Recommendations

M2028SS1W01 (NKK Switches): This is the manufacturer-recommended substitute from NKK Switches. It maintains identical electrical ratings, mechanical dimensions, and operating temperature specifications. The primary difference is termination style (Solder Lug vs. Quick Connect). This part is ROHS3 compliant and remains in stock. Selection of this part is appropriate for applications requiring direct electrical and mechanical compatibility with existing designs using the M2028SS1W02.

5247ZABULCSA (APEM Inc.): This substitute provides equivalent electrical performance with enhanced specifications in DC current rating (4A vs. 3A), extended operating temperature range (-40°C vs. -30°C minimum), and doubled electrical life (50,000 vs. 25,000 cycles). The termination style matches the original part (Quick Connect). This part holds active product status and is ROHS3 compliant. Selection of this part is appropriate for new designs or applications where extended operational life and lower temperature performance are beneficial.

Both substitutes are ROHS3 compliant and maintain the same panel cutout and bushing specifications, ensuring mechanical interchangeability in panel-mount applications.

Frequently Asked Questions (FAQ)

Q: Can M2028SS1W01 be used as a direct replacement for M2028SS1W02?

A: M2028SS1W01 is electrically and mechanically compatible with M2028SS1W02. The primary difference is termination style: M2028SS1W01 uses Solder Lug termination while M2028SS1W02 uses Quick Connect. Circuit configuration, switching function, current and voltage ratings, and mechanical dimensions are identical. Termination compatibility depends on your specific application wiring requirements.

Q: What are the key differences between the NKK Switches and APEM Inc. substitutes?

A: Both parts maintain identical DPDT Mom-Off-Mom circuit configuration and core electrical ratings (6A AC, 125V AC, 30V DC). The APEM 5247ZABULCSA provides higher DC current rating (4A vs. 3A), extended lower temperature operation (-40°C vs. -30°C), and doubled electrical life (50,000 vs. 25,000 cycles). The APEM part retains Quick Connect termination matching the original M2028SS1W02.

Q: Are all three parts panel-mount compatible with the same cutout dimensions?

A: Yes. All three parts feature identical panel cutout dimensions (Circular - 6.50mm Dia) and bushing thread specification (1/4-40), ensuring mechanical interchangeability in panel-mount applications.

Q: Which substitute should be selected for new designs?

A: Selection depends on application requirements. For direct replacement in existing systems, M2028SS1W01 provides manufacturer continuity. For new designs, 5247ZABULCSA offers active product status, extended operational life, and enhanced temperature performance while maintaining electrical compatibility.

Q: Are both substitutes RoHS compliant?

A: Yes. Both M2028SS1W01 and 5247ZABULCSA are ROHS3 compliant, matching the compliance status of the original M2028SS1W02.