M2013SS1W03-BA Toggle Switch SPDT Equivalent & Substitute Parts

Part Overview

The M2013SS1W03-BA is an NKK Switches toggle switch with SPDT (Single Pole Double Throw) circuit configuration, rated for 6A at 125V AC and 3A at 30V DC. This panel-mount switch features a standard round actuator with 14.60mm length and PC pin termination. The product is classified as obsolete, making equivalent and substitute parts necessary for ongoing system maintenance and new design implementations where the original part is no longer available from primary sources.

Key Parameters

Parameter	Value
Manufacturer Part Number	M2013SS1W03-BA
Manufacturer	NKK Switches
Circuit Configuration	SPDT
Switch Function	On-Off-On
Current Rating (AC)	6A
Current Rating (DC)	3A
Voltage Rating (AC)	125V
Voltage Rating (DC)	30V
Mounting Type	Panel Mount
Actuator Type	Standard Round with Cap
Actuator Length	14.60mm
Termination Style	PC Pin
Panel Cutout Diameter	6.50mm
Bushing Thread	1/4-40
Operating Temperature Range	-30°C to 85°C
Electrical Life	25,000 Cycles
Product Status	Obsolete
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the M2013SS1W03-BA is determined by the following critical parameters:

Mandatory Compatibility Parameters:

Circuit configuration: SPDT
Switch function: On-Off-On
Mounting type: Panel Mount
Termination style: PC Pin
Bushing thread: 1/4-40
Operating temperature range: -30°C to 85°C (minimum)

Electrical Performance Parameters:

Current rating must meet or exceed 6A AC / 3A DC
Voltage rating must meet or exceed 125V AC / 30V DC

Mechanical Parameters:

Panel cutout diameter: 6.35mm or 6.50mm (compatible with standard panel preparations)
Actuator length: 10.67mm to 14.60mm (acceptable variation for panel-mount applications)

The substitute parts listed below satisfy these mandatory parameters. Parts with lower electrical ratings (0.4VA at 20V) are included as they share identical mechanical and functional characteristics but are suitable only for lower-power applications. The MN13SS1W03-BA from NKK Switches represents the direct manufacturer equivalent with active product status.

Parameter Comparison

Part Number	Manufacturer	Circuit	Current (AC)	Voltage (AC)	Voltage (DC)	Actuator Type	Actuator Length (mm)	Panel Cutout (mm)	Electrical Life (Cycles)	Product Status	RoHS Status
M2013SS1W03-BA	NKK Switches	SPDT	6A	125V	30V	Standard Round with Cap	14.60	6.50	25,000	Obsolete	ROHS3 Compliant
MN13SS1W03-BA	NKK Switches	SPDT	6A	125V	30V	Standard Round with Cap	14.60	6.50	25,000	Active	ROHS3 Compliant
7103P3H3CQE	C&K	SPDT	5A	120V	28V	Flat Anti-Rotation	10.92	6.35	40,000	Active	ROHS3 Compliant
7103P3HCGE2	C&K	SPDT	5A	120V	28V	Flat Anti-Rotation	11.43	6.35	40,000	Active	ROHS3 Compliant
7103P3HCQE	C&K	SPDT	5A	120V	28V	Flat Anti-Rotation	11.43	6.35	40,000	Active	ROHS3 Compliant
7103P3Y1CGE	C&K	SPDT	5A	120V	28V	Flat Anti-Rotation	11.43	6.35	40,000	Active	ROHS3 Compliant
7103P3Y4CQE	C&K	SPDT	5A	120V	28V	Flat Anti-Rotation	11.43	6.35	40,000	Active	RoHS non-compliant
7103SHCBE	C&K	SPDT	0.4VA	20V	20V	Standard Round	10.67	6.35	40,000	Active	ROHS3 Compliant
7103SHCQE	C&K	SPDT	5A	120V	28V	Standard Round	10.67	6.35	40,000	Active	ROHS3 Compliant

Engineering Selection Recommendations

Primary Recommendation: MN13SS1W03-BA (NKK Switches)

The MN13SS1W03-BA is the direct manufacturer equivalent of the obsolete M2013SS1W03-BA. This part maintains identical electrical specifications (6A AC at 125V, 3A DC at 30V), mechanical configuration, and ROHS3 compliance. The part is currently in active production status with confirmed inventory availability. This is the preferred selection for direct replacement applications requiring no design modification.

Secondary Recommendations: C&K 7103 Series (5A at 120V AC)

The C&K 7103 series parts (7103P3H3CQE, 7103P3HCGE2, 7103P3HCQE, 7103P3Y1CGE, 7103SHCQE) provide electrical performance within acceptable margins of the original specification. These parts deliver 5A at 120V AC and 28V DC, representing a 17% reduction in AC current capacity and 4% reduction in AC voltage rating compared to the M2013SS1W03-BA. All feature SPDT configuration, On-Off-On function, panel-mount design, and PC pin termination. These parts are suitable for applications where the load does not exceed 5A AC at 120V. The C&K parts demonstrate superior electrical life (40,000 cycles versus 25,000 cycles) and are in active production.

Actuator Consideration:

The M2013SS1W03-BA features a standard round actuator with 14.60mm length. C&K 7103P3 series parts use flat anti-rotation actuators with 10.92mm or 11.43mm lengths, while C&K 7103SH series parts use standard round actuators with 10.67mm length. Actuator type and length differences may affect panel aesthetics and operator feel but do not impact electrical function or mechanical compatibility with standard 1/4-40 panel cutouts.

Compliance Status:

All recommended parts maintain ROHS3 compliance except 7103P3Y4CQE, which is RoHS non-compliant and should be avoided in applications requiring regulatory compliance.

Frequently Asked Questions (FAQ)

Q: Can the C&K 7103 series parts directly replace the M2013SS1W03-BA without circuit modification?

A: The C&K 7103 series parts are mechanically and functionally compatible with the M2013SS1W03-BA. However, the reduced electrical ratings (5A AC at 120V versus 6A AC at 125V) require verification that the application load does not exceed these limits. If the circuit operates at or near 6A AC at 125V, the C&K parts are not suitable without load reduction or circuit redesign.

Q: What is the difference between the flat anti-rotation and standard round actuators?

A: Both actuator types perform identical electrical switching functions. The flat anti-rotation design prevents unintended rotation during installation and operation. The standard round design offers simpler geometry. Selection depends on application requirements for actuator stability and operator interface preference.

Q: Are the panel cutout dimensions compatible between the M2013SS1W03-BA and C&K substitutes?

A: The M2013SS1W03-BA requires a 6.50mm diameter circular cutout, while C&K 7103 series parts require 6.35mm diameter cutouts. Both dimensions are within standard panel preparation tolerances. Existing panels prepared for 6.50mm cutouts will accommodate 6.35mm diameter bushings with minimal clearance. New panel designs should specify the appropriate cutout diameter for the selected part.

Q: Why do some C&K parts show 0.4VA rating instead of amperage?

A: The 7103SHCBE and 7103P3H3CBE2 parts are rated in volt-amperes (VA) rather than amperes, indicating lower power handling capacity suitable for signal-level switching applications. These parts are not suitable for the 6A AC load of the original M2013SS1W03-BA application.

Q: What is the significance of the electrical life rating difference?

A: The M2013SS1W03-BA is rated for 25,000 electrical cycles, while C&K 7103 series parts are rated for 40,000 cycles. Higher cycle ratings indicate longer operational life under repeated switching. The C&K parts provide extended service life in high-cycle applications.

Q: Is the MN13SS1W03-BA the only NKK Switches equivalent available?

A: The MN13SS1W03-BA is the current production equivalent from NKK Switches. This part maintains complete specification parity with the obsolete M2013SS1W03-BA and is the recommended first choice for direct replacement.

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