Equivalent & Substitute Parts for 1NT887-7 Toggle Switch

Part Overview

The 1NT887-7 is a toggle switch manufactured by Honeywell Sensing and Productivity Solutions, classified as an SPDT (Single Pole Double Throw) panel mount switch rated for 10A at 125V AC. The switch features a momentary-off-momentary (Mom-Off-Mom) function with a sealed, non-illuminated design suitable for applications requiring IP67/IP68 ingress protection.

The 1NT887-7 carries an obsolete product status. Identifying equivalent substitute parts ensures design continuity and maintains supply chain reliability for applications currently utilizing this component.

Substiute Parts

1NT887-7

Honeywell Sensing and Productivity SolutionsIn Stock: 8871NT887-7 Datasheet

Current PartRFQ

1TL1-7

Honeywell Sensing and Productivity SolutionsIn Stock: 23221TL1-7 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 1NT887-7 is determined by strict equivalence across the following critical parameters:

Electrical Compatibility:

• Circuit configuration must be SPDT
• Switch function must be Mom-Off-Mom
• Current rating must be 10A (AC)
• Voltage rating must be 125V AC

Mechanical Compatibility:

• Mounting type must be Panel Mount
• Panel cutout dimensions must be Circular - 12.40mm Dia
• Bushing thread must be 15/32-32
• Termination style must be Screw Terminal

Environmental & Compliance:

• Ingress protection must meet or exceed IP67/IP68
• RoHS compliance required
• Operating temperature range must encompass or exceed -40°C ~ 71°C

The 1TL1-7 satisfies all substitution criteria and is classified as a direct equivalent.

Parameter Comparison

Engineering Selection Recommendations

The 1TL1-7 is the direct equivalent substitute for the obsolete 1NT887-7. Selection of the 1TL1-7 is supported by the following engineering factors:

Electrical Equivalence: Both parts maintain identical electrical specifications across circuit configuration, current rating, and voltage rating, ensuring functional interchangeability in existing circuit designs.

Mechanical Interchangeability: Panel cutout dimensions, bushing thread specifications, and termination style are identical, permitting direct mechanical substitution without panel redesign or mechanical rework.

Environmental Performance: The 1TL1-7 provides equivalent ingress protection and extends the operating temperature range to -65°C, offering enhanced performance in low-temperature applications.

Compliance Status: The 1TL1-7 maintains RoHS compliance and carries active product status, ensuring long-term availability and supply chain continuity.

Actuator Dimension Variance: The actuator length difference of 0.25mm (1TL1-7 at 17.27mm versus 1NT887-7 at 17.02mm) is within functional tolerance for panel mount applications and does not affect electrical or mechanical performance.

Frequently Asked Questions (FAQ)

Q: Can the 1TL1-7 be used as a direct replacement for the 1NT887-7 in existing designs?

A: Yes. The 1TL1-7 meets all electrical and mechanical specifications required for direct substitution. Panel cutout dimensions, bushing thread, termination style, and electrical ratings are identical. No circuit redesign or mechanical modification is required.

Q: What is the significance of the actuator length difference between the two parts?

A: The 1TL1-7 actuator length is 17.27mm compared to 17.02mm for the 1NT887-7, a difference of 0.25mm. This variance is within functional tolerance for panel mount toggle switches and does not affect switch operation, electrical performance, or mechanical fit.

Q: Why does the 1TL1-7 have a wider operating temperature range?

A: The 1TL1-7 operates from -65°C to 71°C, compared to -40°C to 71°C for the 1NT887-7. This extended low-temperature capability represents an enhancement in the substitute part and does not create compatibility issues. Applications requiring only -40°C to 71°C operation remain fully supported.

Q: Is the 1TL1-7 available in the same packaging as the 1NT887-7?

A: The 1NT887-7 was supplied in standard packaging, while the 1TL1-7 is available in bulk packaging. Both configurations support the same electrical and mechanical specifications. Packaging selection should be based on procurement and inventory requirements.

Q: Are both parts RoHS compliant?

A: Yes. Both the 1NT887-7 and 1TL1-7 are RoHS compliant, meeting regulatory requirements for hazardous substance restrictions.

Q: What is the product status difference, and why does it matter?

A: The 1NT887-7 is obsolete, while the 1TL1-7 is active production. Active status ensures continued manufacturing, availability, and technical support for the 1TL1-7, making it the recommended choice for new designs and ongoing production requirements.