M2028SS1G01 Equivalent & Substitute Parts

Part Overview

The M2028SS1G01 is a toggle switch manufactured by NKK Switches, classified as a DPDT (Double Pole Double Throw) panel mount switch with a current rating of 0.4VA at 28V AC/DC. The switch features a standard round actuator with a 10.50mm length, solder lug termination, and non-illuminated design. This part is currently listed as obsolete, making identification of functionally equivalent alternatives necessary for ongoing system maintenance and new design implementations where this switch type is required.

Substiute Parts

M2028SS1G01

NKK SwitchesIn Stock: 891M2028SS1G01 Datasheet

Current PartRFQ

5647CDB

APEM Inc.In Stock: 11395647CDB Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the M2028SS1G01 is determined by strict alignment of the following critical parameters:

Circuit and Function Requirements:

• Circuit configuration must be DPDT
• Switch function must be Mom-Off-Mom
• Current rating must support 0.4VA (AC/DC)

Electrical Compatibility:

• Voltage rating must meet or exceed 28V AC/DC operation
• Operating temperature range must encompass the application environment

Mechanical and Physical Compatibility:

• Mounting type must be Panel Mount
• Actuator type must be Standard Round with 10.50mm length
• Termination style must be Solder Lug
• Panel cutout dimensions must be Circular - 6.50mm Dia
• Bushing thread must be 1/4-40

Regulatory and Compliance:

• RoHS3 compliance required
• MSL rating of 1 (Unlimited) acceptable

The substitute part 5647CDB from APEM Inc. meets all mechanical, electrical, and functional requirements within the defined parameter set.

Parameter Comparison

Engineering Selection Recommendations

The 5647CDB from APEM Inc. serves as a direct functional substitute for the obsolete M2028SS1G01. Both parts maintain identical circuit configuration (DPDT), switch function (Mom-Off-Mom), current rating (0.4VA AC/DC), mechanical dimensions, and termination style. Both parts are ROHS3 compliant and carry MSL rating of 1 (Unlimited).

The 5647CDB is currently in active production status with 1090 units in stock, providing supply continuity for applications previously using the M2028SS1G01. The substitute part features an extended operating temperature range (-40°C to 85°C versus -30°C to 85°C), offering broader environmental compatibility.

The voltage rating differential (5647CDB rated at 20V AC/DC versus M2028SS1G01 rated at 28V AC/DC) must be evaluated against specific application requirements. For systems operating at or below 20V, the 5647CDB provides full electrical compatibility. For systems requiring operation above 20V up to 28V, alternative substitutes meeting the higher voltage specification should be identified.

Frequently Asked Questions (FAQ)

Q: Can the 5647CDB replace the M2028SS1G01 in all applications?

A: The 5647CDB matches all mechanical and functional parameters of the M2028SS1G01. However, voltage rating compatibility must be confirmed. The 5647CDB is rated for 20V AC/DC maximum, while the original part is rated for 28V AC/DC. Substitution is appropriate only for applications operating at 20V or below.

Q: What are the critical parameters that determine substitution eligibility?

A: Substitution requires matching of circuit configuration (DPDT), switch function (Mom-Off-Mom), current rating (0.4VA AC/DC), mounting type (Panel Mount), actuator specifications (Standard Round, 10.50mm length), termination style (Solder Lug), panel cutout dimensions (Circular 6.50mm Dia), and bushing thread (1/4-40). Voltage and temperature ratings must meet or exceed application requirements.

Q: Why is the M2028SS1G01 listed as obsolete?

A: The M2028SS1G01 is designated as obsolete by NKK Switches, indicating discontinued production. The 5647CDB from APEM Inc. remains in active production and provides equivalent functionality for new designs and system maintenance.

Q: Are there packaging differences between these parts?

A: The M2028SS1G01 is supplied in standard packaging, while the 5647CDB is supplied in bulk packaging. Both parts are suitable for solder lug termination and panel mount installation.

Q: What compliance certifications apply to both parts?

A: Both the M2028SS1G01 and 5647CDB are ROHS3 compliant, REACH unaffected, and carry ECCN classification EAR99. Both parts have MSL rating of 1 (Unlimited moisture sensitivity level).