Equivalent & Substitute Parts for Honeywell 1TL887-21 Toggle Switch

Part Overview

The Honeywell 1TL887-21 is a toggle switch with SPST (Single Pole Single Throw) configuration rated for 15A at 125V AC. This component features panel mount installation with a circular 12.40mm diameter cutout and screw terminal connections. The part is classified as obsolete, making identification of active equivalent models essential for procurement and system continuity.

Substiute Parts

1TL887-21

Honeywell Sensing and Productivity SolutionsIn Stock: 10781TL887-21 Datasheet

Current PartRFQ

1TL1-2

Honeywell Sensing and Productivity SolutionsIn Stock: 35081TL1-2 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete 1TL887-21 is determined by strict equivalence across electrical and mechanical parameters. The substitute part must maintain identical specifications in the following critical areas:

Electrical Parameters: Circuit configuration (SPST), current rating (15A AC), and voltage rating (125V AC) must be identical to ensure functional compatibility within the original circuit design.

Mechanical Parameters: Panel mount installation, circular cutout diameter (12.40mm), bushing thread specification (15/32-32), screw terminal connections, and actuator dimensions (17.27mm length, standard round type) must match to ensure physical interchangeability without panel modifications.

Environmental Parameters: Operating temperature range (-65°C to 71°C), environment sealed ingress protection, and RoHS compliance must be maintained.

The substitute part 1TL1-2 meets all these criteria and is classified as active product status, providing long-term availability assurance.

Parameter Comparison

Engineering Selection Recommendations

The 1TL1-2 is the direct equivalent substitute for the obsolete 1TL887-21. Both components are manufactured by Honeywell Sensing and Productivity Solutions and share identical electrical, mechanical, and environmental specifications. The primary distinction is product status: the 1TL887-21 is obsolete while the 1TL1-2 is active.

Selection of the 1TL1-2 provides the following advantages:

Compliance Assurance: Both parts maintain RoHS compliance, satisfying regulatory requirements for new designs and system updates.

Long-Term Availability: The active status of 1TL1-2 ensures continued procurement availability, eliminating supply chain risk associated with obsolete components.

Direct Interchangeability: Identical specifications across all electrical, mechanical, and environmental parameters enable direct substitution without circuit redesign or panel modification.

Certification Continuity: Both components meet the same environmental sealing and temperature operating specifications, maintaining system performance characteristics.

Frequently Asked Questions (FAQ)

Q: Can the 1TL1-2 be used as a direct replacement for the 1TL887-21 without any modifications?

A: Yes. The 1TL1-2 is electrically and mechanically identical to the 1TL887-21. No circuit modifications, panel alterations, or terminal reconfiguration are required. Direct substitution is supported by matching specifications across all critical parameters.

Q: What is the difference between the 1TL887-21 and 1TL1-2?

A: The components are functionally equivalent. The primary difference is product status: 1TL887-21 is obsolete while 1TL1-2 is active. This distinction affects availability and long-term procurement viability.

Q: Are there packaging differences between these parts?

A: The 1TL887-21 is supplied in standard packaging, while the 1TL1-2 is supplied in bulk packaging. Both packaging formats contain identical components with no functional or performance differences.

Q: Does the 1TL1-2 meet the same compliance standards as the 1TL887-21?

A: Yes. Both components are RoHS compliant and carry identical ECCN (EAR99) and HTSUS classifications. Compliance certifications are equivalent.

Q: What are the key parameters that determine substitution eligibility?

A: Substitution is determined by equivalence in circuit configuration (SPST), current rating (15A AC), voltage rating (125V AC), mounting type (panel mount), panel cutout dimensions (12.40mm circular), bushing thread (15/32-32), termination style (screw terminal), actuator specifications (standard round, 17.27mm length), operating temperature range (-65°C to 71°C), and ingress protection (environment sealed).

Q: Is the 1TL1-2 suitable for applications requiring the same electrical performance as the 1TL887-21?

A: Yes. Both components are rated for 15A at 125V AC with SPST configuration. Electrical performance characteristics are identical, supporting equivalent application requirements.