NKK Switches S116 Toggle Switch DPDT Equivalent & Substitute Parts

Part Overview

The NKK Switches S116 is a panel-mount toggle switch with DPDT (Double Pole Double Throw) configuration rated for 5A at 125V AC and 30V DC. The switch features a standard round actuator with solder lug termination and a circular 12.50mm panel cutout. This part is classified as obsolete, making identification of equivalent and substitute components necessary for ongoing system maintenance and new design implementations where this switch type is required.

Substiute Parts

S116

NKK SwitchesIn Stock: 1010S116 Datasheet

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S6A

NKK SwitchesIn Stock: 1113S6A Datasheet

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ET206N12-Z

Nidec Components CorporationIn Stock: 954ET206N12-Z Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the S116 toggle switch is determined by strict adherence to the following electrical and mechanical parameters:

Critical Compatibility Parameters:

• Circuit configuration must be DPDT
• Switch function must be On-On
• Voltage rating must support minimum 125V AC and 30V DC
• Current rating must meet or exceed 5A
• Mounting type must be Panel Mount
• Actuator type must be Standard Round
• Termination style must be Solder Lug
• Panel cutout dimensions must be Circular 12.50mm Dia
• Bushing thread must be M12 x 1

Two substitute parts meet these criteria with variations in current rating and electrical life specifications.

Parameter Comparison

Engineering Selection Recommendations

NKK Switches S6A is the primary substitute for the S116. This part maintains identical mechanical and electrical compatibility while offering enhanced performance characteristics. The S6A provides a current rating of 20A, exceeding the S116 requirement of 5A, and delivers extended electrical life of 25,000 cycles compared to 10,000 cycles. The S6A is classified as Active product status, ensuring continued availability and supply chain reliability. Both parts are ROHS3 compliant and share identical panel cutout dimensions, bushing thread specifications, and operating temperature range.

Nidec Components Corporation ET206N12-Z serves as a secondary substitute option. This part maintains DPDT configuration, On-On function, and identical mechanical mounting specifications. The ET206N12-Z provides 6A current rating at 125V AC, meeting the minimum 5A requirement. However, this part is classified as Obsolete and lacks specified DC voltage rating and operating temperature range documentation. The ET206N12-Z is suitable only when NKK Switches S6A is unavailable and when DC voltage operation is not required in the application.

Frequently Asked Questions (FAQ)

Q: Can the S6A directly replace the S116 in existing designs? A: Yes. The S6A maintains identical panel cutout dimensions (12.50mm circular), bushing thread (M12 x 1), mounting type (Panel Mount), and electrical configuration (DPDT On-On). The higher current rating of 20A is backward compatible with the 5A requirement of the original S116 design.

Q: What is the difference in actuator length between these parts? A: The S116 has an actuator length of 18.00mm, the S6A measures 17.50mm, and the ET206N12-Z measures 17.00mm. These minor variations may affect panel aesthetics but do not impact electrical function or mechanical compatibility.

Q: Is the ET206N12-Z suitable for DC applications? A: The ET206N12-Z specification does not include DC voltage rating documentation. The S116 and S6A both specify 30V DC rating. For applications requiring DC operation, the S6A is the recommended substitute.

Q: Why is the S116 classified as obsolete? A: The S116 is listed as obsolete by the manufacturer. The S6A, also from NKK Switches, is the active replacement offering superior electrical life and current capacity while maintaining full mechanical compatibility.

Q: Are all three parts ROHS3 compliant? A: Yes. The S116, S6A, and ET206N12-Z are all ROHS3 compliant, meeting environmental and regulatory requirements for electronic component manufacturing.

Q: What is the electrical life difference between substitutes? A: The S116 and ET206N12-Z both specify 10,000 electrical cycles. The S6A provides 25,000 cycles, offering extended operational life for high-cycle applications.