TS1N Rotary Switch Equivalent & Substitute Parts

Part Overview

The TS1N is a rotary switch manufactured by NKK Switches, designed for panel-mount applications requiring multi-position selection. This component is classified as obsolete, making equivalent substitutes necessary for ongoing maintenance, repair, and new design considerations where the original part is no longer readily available through standard procurement channels.

The TS1N operates as a single-pole, multi-position (2–11 position) switch with non-shorting contact timing, suitable for AC applications at 125 VAC with a 6A current rating. Its adjustable index stops and flatted actuator design provide flexibility in application-specific configurations.

Substiute Parts

TS1N

NKK SwitchesIn Stock: 971TS1N Datasheet

Current PartRFQ

D4G0111N

ElectroswitchIn Stock: 1101D4G0111N Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TS1N is determined by the following critical parameters:

• Circuit Configuration: Both main and substitute parts must support SP11T (Single Pole, 11 Throw) topology to maintain functional equivalence across 2–11 selectable positions.
• Contact Timing: Non-shorting (BBM) contact timing is required to prevent transient switching artifacts in sensitive applications.
• Mounting Interface: Panel mount configuration with compatible panel cutout dimensions (nominal 10.30mm) ensures mechanical fit.
• Voltage and Current Ratings: The substitute must support minimum AC voltage of 125 VAC and minimum AC current of 6A to handle the original application load.
• Adjustable Index Stops: Both parts must provide adjustable positioning to accommodate variable position counts (2–11).
• Termination Compatibility: Screw terminal or equivalent termination must be available for circuit integration.

The D4G0111N from Electroswitch meets these core functional requirements, though with specific trade-offs in current rating and voltage specifications that must be evaluated for the intended application.

Parameter Comparison

Engineering Selection Recommendations

Primary Consideration: Current Rating

The D4G0111N is rated for 500mA AC, which is significantly lower than the TS1N's 6A AC rating. This substitute is suitable only for applications where the actual load current does not exceed 500mA. Applications requiring the full 6A capacity of the TS1N cannot use the D4G0111N without risk of contact degradation or thermal failure.

Secondary Consideration: Voltage Rating

The D4G0111N operates at 115 VAC maximum, compared to the TS1N's 125 VAC. This 10V difference is typically acceptable in industrial AC applications with standard utility voltage tolerance (±10%), but must be confirmed for the specific circuit design.

Mechanical Fit Assessment

The D4G0111N has a smaller panel cutout diameter (9.78mm vs. 10.30mm) and shallower depth behind panel (14.27mm vs. 22.00mm). These differences allow the substitute to fit in tighter enclosure spaces but require verification that the existing panel cutout can be modified or that the smaller diameter is acceptable for the mechanical design.

Termination Compatibility

The TS1N uses screw terminals while the D4G0111N uses solder lugs. This difference requires either circuit board redesign or the use of adapter terminals. Screw terminal connections are generally preferred for field serviceability, whereas solder lugs require permanent board-level integration.

Compliance Status

Both parts meet RoHS requirements. The TS1N carries ROHS3 compliance, while the D4G0111N is RoHS compliant. Both are suitable for applications requiring environmental compliance.

Frequently Asked Questions (FAQ)

Q: Can the D4G0111N directly replace the TS1N in an existing circuit?

A: Direct replacement is not recommended without design review. The D4G0111N has lower current and voltage ratings, different termination style (solder lug vs. screw terminal), and different mechanical dimensions. Functional substitution requires verification that the application load does not exceed 500mA AC and that the mechanical and electrical interfaces can be adapted.

Q: What is the maximum current the D4G0111N can safely handle?

A: The D4G0111N is rated for 500mA AC and 1.5A DC. Applications exceeding these ratings will cause premature contact wear and potential failure. If the original TS1N application requires 6A AC, the D4G0111N is not suitable.

Q: Are the panel cutout dimensions compatible?

A: No. The TS1N requires a 10.30mm diameter cutout, while the D4G0111N requires 9.78mm. If the panel is already drilled for the TS1N, the D4G0111N will fit through the larger hole but may have excessive play. A smaller cutout can be drilled for the D4G0111N if mechanical redesign is acceptable.

Q: What is the difference between screw terminals and solder lugs?

A: Screw terminals allow field-replaceable connections without soldering, making them suitable for maintenance and repair. Solder lugs require permanent board-level integration and are not field-replaceable. The choice depends on whether the application requires field serviceability.

Q: Are both parts RoHS compliant?

A: Yes. The TS1N is ROHS3 compliant, and the D4G0111N is RoHS compliant. Both meet environmental compliance requirements for restricted substance use.

Q: What is the significance of the 30° angle of throw?

A: The 30° angle of throw defines the mechanical rotation required to advance from one position to the next. Both the TS1N and D4G0111N share this specification, ensuring consistent operator feel and mechanical indexing behavior.

Q: Can the D4G0111N handle DC applications?

A: The D4G0111N is rated for 1.5A DC at 28 VDC. The TS1N specifications provided do not include DC ratings. If the application requires DC operation, the D4G0111N may be suitable depending on the DC voltage and current requirements.