Equivalent & Substitute Parts for Honeywell 13AT2-N Toggle Switch

Part Overview

The Honeywell 13AT2-N is a DPDT (Double Pole Double Throw) toggle switch rated for 5A at 250V AC and 30V DC. This panel-mount switch features a locking lever actuator with a 30mm length and solder lug termination. The product is classified as obsolete, making identification of suitable substitute components essential for ongoing maintenance, repair, and new design applications where equivalent functionality is required.

Substiute Parts

13AT2-N

Honeywell Sensing and Productivity SolutionsIn Stock: 108113AT2-N Datasheet

Current PartRFQ

12TW1-1A

Honeywell Sensing and Productivity SolutionsIn Stock: 96312TW1-1A Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the 13AT2-N toggle switch is determined by the following critical parameters:

Electrical Compatibility:

• Circuit configuration must be DPDT
• Switch function must be On-Off-On
• Current rating must support minimum 5A
• Voltage ratings must meet or exceed application requirements (250V AC / 30V DC for the main part)

Mechanical Compatibility:

• Mounting type must be Panel Mount
• Actuator type must be Locking Lever
• Panel cutout dimensions must be Circular 12.40mm Dia
• Bushing thread must be 15/32-32
• Actuator length should be within acceptable tolerance range

Compliance & Quality:

• RoHS Compliant status required
• MSL rating of 1 (Unlimited) preferred

The substitute part 12TW1-1A meets the core electrical and mechanical requirements with the exception of voltage rating, which is lower (125V AC vs. 250V AC). This substitution is valid only for applications operating at or below 125V AC.

Parameter Comparison

Engineering Selection Recommendations

For applications operating at 125V AC or lower: The 12TW1-1A is a direct functional substitute for the 13AT2-N. Both parts share identical circuit configuration (DPDT), switch function (On-Off-On), current rating (5A), panel cutout dimensions (12.40mm Dia), and bushing thread (15/32-32). The 12TW1-1A is currently in active production status, ensuring long-term availability and supply chain stability compared to the obsolete 13AT2-N.

Voltage Derating Consideration: The 12TW1-1A is rated for 125V AC maximum, compared to the 13AT2-N's 250V AC rating. Applications requiring operation above 125V AC cannot use the 12TW1-1A as a substitute without violating electrical safety specifications.

Termination Difference: The 13AT2-N uses solder lug termination, while the 12TW1-1A uses solder turret termination. Both are solder-based connections suitable for PCB or wire attachment, but physical layout and connection methodology must be verified during integration.

Actuator Length Variance: The actuator length differs by 0.54mm (30.00mm vs. 29.46mm). This minor difference is within typical mechanical tolerance ranges for panel-mount switches and does not affect functional compatibility.

Compliance Status: Both parts are RoHS Compliant with MSL rating of 1 (Unlimited), meeting modern environmental and moisture sensitivity requirements.

Frequently Asked Questions (FAQ)

Q: Can the 12TW1-1A replace the 13AT2-N in all applications?

A: No. The 12TW1-1A is suitable only for applications operating at 125V AC or lower. The 13AT2-N is rated for 250V AC, which exceeds the substitute's voltage specification. Verify your application's voltage requirements before substitution.

Q: What is the difference between solder lug and solder turret termination?

A: Solder lug termination (13AT2-N) features a flat tab for wire attachment. Solder turret termination (12TW1-1A) features a cylindrical post for PCB or wire attachment. Both are solder-based connections; the choice depends on your assembly method and PCB layout.

Q: Are the panel cutout dimensions identical?

A: Yes. Both the 13AT2-N and 12TW1-1A require a circular 12.40mm diameter cutout with a 15/32-32 bushing thread. Panel mounting is mechanically compatible between the two parts.

Q: Why is the 13AT2-N obsolete?

A: The 13AT2-N is classified as obsolete by Honeywell. The 12TW1-1A is the active production equivalent, ensuring continued availability and support for new designs and replacements.

Q: Does the 0.54mm actuator length difference affect operation?

A: No. The actuator length variance (30.00mm vs. 29.46mm) is within standard mechanical tolerance for panel-mount toggle switches and does not impact functional performance or user interface.

Q: Is the 12TW1-1A environment sealed?

A: Yes. The 12TW1-1A includes environment sealed ingress protection, providing enhanced protection against moisture and contaminants compared to the 13AT2-N, which does not specify ingress protection.

Q: What is the operating temperature range for the 12TW1-1A?

A: The 12TW1-1A operates from -65°C to 71°C. The 13AT2-N does not specify an operating temperature range in the provided data.