M2015SS1W03 Equivalent & Substitute Parts

Part Overview

The M2015SS1W03 is an NKK Switches toggle switch with SPDT circuit configuration, rated for 6A at 125V AC and 3A at 30V DC. This panel-mount switch features a standard round actuator with PC pin termination and is sealed with epoxy terminals for environmental protection. The part is classified as obsolete, making equivalent and substitute parts necessary for ongoing applications and new designs requiring similar electrical and mechanical functionality.

Substiute Parts

M2015SS1W03

NKK SwitchesIn Stock: 1215M2015SS1W03 Datasheet

Current PartRFQ

MN15SS1W03

NKK SwitchesIn Stock: 992MN15SS1W03 Datasheet

MFR RecommendedRFQ

A126S1YCQ

ElectroswitchIn Stock: 897A126S1YCQ Datasheet

SimilarRFQ

A127T1TZQ

ElectroswitchIn Stock: 882A127T1TZQ Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the M2015SS1W03 is determined by the following critical parameters: circuit configuration (SPDT), switch function (On-Mom or compatible), current rating (minimum 6A AC), voltage rating (minimum 125V AC), mounting type (panel mount), actuator type (standard round), and termination style (PC pin or compatible). The substitute parts are grouped based on their alignment with these core electrical and mechanical specifications.

MN15SS1W03 (NKK Switches) is classified as a manufacturer-recommended substitute. This part maintains the same base product line (M/MN series) and shares identical electrical ratings and mounting characteristics.

A126S1YCQ (Electroswitch) and A127T1TZQ (Electroswitch) are classified as similar substitutes. Both parts meet the primary electrical requirements (SPDT circuit, 6A AC at 125V) and panel-mount configuration. However, differences exist in switch function, actuator length, termination style, and bushing thread specifications that must be evaluated for specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

MN15SS1W03 is the primary substitute option. As an active product from the same manufacturer with ROHS3 compliance, this part provides direct continuity for applications currently using the M2015SS1W03. The manufacturer designation indicates functional equivalence within the NKK Switches product portfolio.

A126S1YCQ is suitable for applications where the following conditions are met: PC pin termination is required, 1/4-40 bushing thread is compatible with the panel cutout, and the 10.41mm actuator length accommodates the mechanical envelope. The On-Mom switch function matches the original part. The extended operating temperature range (-30°C to 90°C) and increased electrical life (60,000 cycles) provide enhanced performance margins. RoHS compliance is confirmed.

A127T1TZQ is applicable only when the Mom-Off-Mom switch function is functionally equivalent to the original On-Mom requirement. This part requires solder lug termination compatibility and a 15/32-32 bushing thread, which represents a mechanical interface change from the original design. The 17.45mm actuator length is significantly longer and may conflict with panel-mount space constraints. Selection of this part requires explicit verification of mechanical fit and functional requirement alignment.

Frequently Asked Questions (FAQ)

Q: Can MN15SS1W03 be used as a direct replacement for M2015SS1W03?

A: MN15SS1W03 is designated as the manufacturer-recommended substitute. Both parts are from NKK Switches and share the same base product line. Detailed electrical specifications for MN15SS1W03 are not provided in the reference data; verification of current and voltage ratings against application requirements is necessary before implementation.

Q: What are the key differences between A126S1YCQ and A127T1TZQ?

A: Both Electroswitch parts maintain SPDT circuit configuration and 6A/125V AC ratings. A126S1YCQ features On-Mom function with 10.41mm actuator length and PC pin termination on 1/4-40 bushing thread. A127T1TZQ features Mom-Off-Mom function with 17.45mm actuator length and solder lug termination on 15/32-32 bushing thread. Switch function and termination style are the primary differentiators.

Q: Are the Electroswitch substitutes mechanically compatible with the original panel cutout?

A: A126S1YCQ uses identical 1/4-40 bushing thread and similar actuator length (10.41mm vs. 10.50mm), supporting mechanical compatibility with the original panel mount. A127T1TZQ uses 15/32-32 bushing thread and 17.45mm actuator length, requiring panel modification or redesign for installation.

Q: What compliance certifications apply to all substitute parts?

A: MN15SS1W03 and A126S1YCQ are RoHS compliant. A127T1TZQ is RoHS compliant. All parts carry ECCN EAR99 classification and HTSUS code 8536.50.9065. REACH status varies: MN15SS1W03 is REACH Unaffected; Electroswitch parts show Vendor Undefined status.

Q: Does the DC voltage rating difference affect substitution?

A: The original M2015SS1W03 is rated 30V DC. A126S1YCQ and A127T1TZQ are rated 28V DC. For applications operating at or above 28V DC, this 2V difference may be within acceptable design margins. Applications requiring the full 30V DC rating should verify Electroswitch part performance or select MN15SS1W03.