HS16-3S Rotary Switch Equivalent & Substitute Parts

Part Overview

The HS16-3S is a rotary switch manufactured by NKK Switches, classified as a 2 to 11 position panel mount switch with SP11T circuit configuration. This switch is rated for 12A AC at 125 VAC and features a knurled actuator with adjustable index stops across three decks. The HS16-3S is currently listed as obsolete, making identification of equivalent substitute parts essential for ongoing maintenance, repair, and legacy system support.

Substiute Parts

HS16-3S

NKK SwitchesIn Stock: 1102HS16-3S Datasheet

Current PartRFQ

HS16-3S/U

NKK SwitchesIn Stock: 1107HS16-3S/U Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the HS16-3S is determined by strict equivalence across all electrical and mechanical parameters. The substitute part must maintain identical specifications in the following critical areas:

• Electrical performance: 12A AC current rating at 125 VAC
• Circuit topology: SP11T configuration with 3 decks and 1 pole per deck
• Contact characteristics: Shorting (MBB) contact timing with phosphor bronze material
• Mechanical interface: Panel mount with solder lug termination, knurled 6mm actuator, 15.00mm actuator length, 30° angle of throw
• Physical dimensions: 10.30mm circular panel cutout, 51.50mm depth behind panel
• Environmental compliance: ROHS3 compliant, REACH unaffected, MSL 1

The HS16-3S/U is identified as a direct substitute based on complete parameter alignment across all specified electrical and mechanical characteristics.

Parameter Comparison

Engineering Selection Recommendations

The HS16-3S/U is the direct equivalent substitute for the obsolete HS16-3S. Both parts are manufactured by NKK Switches and share identical electrical and mechanical specifications. The primary distinction is product status: the HS16-3S is obsolete while the HS16-3S/U maintains active status, ensuring continued availability and supply chain reliability.

Both parts meet ROHS3 compliance and REACH unaffected status, satisfying current environmental and regulatory requirements. The HS16-3S/U is packaged in bulk format, whereas the original part number does not specify packaging designation.

For applications currently using the HS16-3S, direct substitution with HS16-3S/U is electrically and mechanically compatible without circuit modification or mechanical redesign.

Frequently Asked Questions (FAQ)

Q: Can the HS16-3S/U be used as a direct replacement for the HS16-3S?

A: Yes. The HS16-3S/U is a direct equivalent substitute. All electrical parameters (12A AC at 125 VAC, SP11T circuit), mechanical dimensions (panel cutout, depth, actuator specifications), and contact characteristics (shorting MBB, phosphor bronze) are identical between the two part numbers.

Q: What is the difference between HS16-3S and HS16-3S/U?

A: The HS16-3S is obsolete, while the HS16-3S/U is active. The HS16-3S/U is packaged in bulk format. All technical specifications remain identical.

Q: Are there any compliance differences between these parts?

A: No. Both the HS16-3S and HS16-3S/U are ROHS3 compliant and REACH unaffected. Moisture sensitivity level is 1 (unlimited) for both parts.

Q: What are the critical parameters for substitution in this product category?

A: For rotary switches in the HS series, substitution requires matching: number of positions (2 ~ 11), number of decks (3), circuit configuration (SP11T), current rating (12A AC), voltage rating (125 VAC), contact timing (shorting MBB), mounting type (panel mount), termination style (solder lug), actuator specifications (knurled 6mm, 15.00mm length), angle of throw (30°), and panel cutout dimensions (10.30mm circular).

Q: Can the HS16-3S/U be used in applications originally designed for the HS16-3S without modification?

A: Yes. No circuit modifications or mechanical redesign is required. The HS16-3S/U is a direct functional and physical equivalent.