SWK12F315 Equivalent & Substitute Parts

Part Overview

The SWK12F315 is a keylock switch manufactured by TE Connectivity ALCOSWITCH Switches, configured as a 2-position SPST (Single Pole Single Throw) on-off switch rated for 5A AC at 115V and 15A DC at 24V. This component features panel mount installation with screw terminal connections and a flat key actuator with key removable in all positions.

The SWK12F315 is classified as obsolete. Identifying equivalent and substitute parts is necessary to support ongoing maintenance, repair, and replacement requirements for systems utilizing this keylock switch architecture.

Substiute Parts

SWK12F315

TE Connectivity ALCOSWITCH SwitchesIn Stock: 807SWK12F315 Datasheet

Current PartRFQ

SWK121F315

TE Connectivity ALCOSWITCH SwitchesIn Stock: 1175SWK121F315 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SWK12F315 is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Circuit configuration (SPST)
• Current ratings (5A AC / 15A DC)
• Voltage ratings (115V AC / 24V DC)
• Contact material and timing characteristics (Silver, Non-Shorting BBM)

Mechanical Parameters:

• Number of positions (2)
• Switch function (On-Off)
• Actuator type (Flat Key)
• Mounting configuration (Panel Mount)
• Termination style (Screw Terminal)
• Panel cutout dimensions (19.20mm circular)
• Depth behind flange (45.20mm)

Performance Parameters:

• Operating temperature range (-30°C to 85°C)
• Mechanical and electrical life (20,000 cycles each)

The SWK121F315 qualifies as a direct substitute based on complete alignment with all electrical, mechanical, and performance parameters. Differences in key removable positions and packaging do not affect functional equivalence for applications requiring the specified electrical and mechanical characteristics.

Parameter Comparison

Engineering Selection Recommendations

Both the SWK12F315 and SWK121F315 are classified as obsolete products. Selection between these parts should be based on the following criteria:

Compliance and Regulatory Status: The SWK121F315 carries ROHS3 compliance and REACH affected status certifications, providing enhanced regulatory alignment for applications subject to environmental and chemical restriction requirements. The SWK12F315 does not specify these compliance certifications.

Availability and Packaging: The SWK121F315 is available in bulk packaging with 1,147 units in stock, compared to 716 units of the SWK12F315 in standard packaging. For high-volume replacement or maintenance programs, the SWK121F315 offers greater availability.

Key Removable Positions: The SWK12F315 provides key removal in all positions, while the SWK121F315 restricts key removal to 2 positions only. Applications requiring key removal capability in specific operational states should account for this functional difference.

Functional Equivalence: Both parts satisfy identical electrical and mechanical requirements for SPST keylock switch applications operating at 5A AC (115V) and 15A DC (24V) with panel mount installation and screw terminal connections.

Frequently Asked Questions (FAQ)

Q: Can the SWK121F315 directly replace the SWK12F315 in existing installations?

A: The SWK121F315 provides electrical and mechanical equivalence to the SWK12F315 across all critical parameters including circuit configuration, current and voltage ratings, actuator type, mounting configuration, and termination style. The primary functional difference is key removable positions (all positions for SWK12F315 versus 2 positions only for SWK121F315). Substitution is appropriate for applications where key removal restriction does not conflict with operational requirements.

Q: What are the key electrical parameters that determine substitution compatibility?

A: Substitution compatibility is determined by matching SPST circuit configuration, 5A AC at 115V and 15A DC at 24V current and voltage ratings, silver contact material with non-shorting (BBM) contact timing, and operating temperature range of -30°C to 85°C. Any deviation from these parameters indicates incompatibility.

Q: How do the mechanical specifications affect part selection?

A: Both parts feature identical mechanical specifications: 2-position flat key actuator, 90-degree angle of throw, panel mount installation with 19.20mm circular cutout, 45.20mm depth behind flange, and screw terminal connections. These specifications ensure physical and functional interchangeability in panel-mounted applications.

Q: What is the significance of the key removable positions difference?

A: The SWK12F315 allows key removal in all switch positions, while the SWK121F315 restricts key removal to 2 positions only. This difference affects operational flexibility in applications requiring key extraction during specific switch states. Selection should reflect the operational requirements of the target application.

Q: Are there compliance differences between these parts?

A: The SWK121F315 carries ROHS3 compliance and REACH affected status certifications. The SWK12F315 does not specify these certifications. Applications subject to environmental or chemical restriction regulations should prioritize the SWK121F315 for regulatory alignment.

Q: What is the availability status of these parts?

A: Both parts are classified as obsolete. The SWK121F315 has higher current inventory (1,147 units) compared to the SWK12F315 (716 units). For applications requiring immediate availability or high-volume procurement, the SWK121F315 offers superior stock position.