Honeywell 1DM23 Snap-Action Switch: Equivalent & Substitute Parts

Part Overview

The Honeywell 1DM23 is a snap-action switch with SPST-NO (Single Pole Single Throw - Normally Open) circuit configuration, rated for 10A at 125V AC. The switch features a round pin plunger actuator, panel mount snap-in installation, and quick connect 0.187" termination. The 1DM23 is classified as obsolete product status. Identification of equivalent substitute parts is necessary to maintain design continuity and ensure component availability for applications requiring SPST-NO snap-action switching functionality at specified electrical ratings.

Substiute Parts

1DM23

Honeywell Sensing and Productivity SolutionsIn Stock: 8841DM23 Datasheet

Current PartRFQ

1DM3

Honeywell Sensing and Productivity SolutionsIn Stock: 11491DM3 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete Honeywell 1DM23 is based on electrical and mechanical parameter equivalence within the Honeywell DM series snap-action switch family. The substitute part 1DM3 maintains identical electrical specifications: SPST-NO circuit, 10A AC current rating, and 125V AC voltage rating. Both parts share the same actuator type (round pin plunger), mounting configuration (panel mount snap-in), and termination style (quick connect 0.187"). Mechanical life rating (1,000,000 cycles), operating force (425gf), release force (85gf), and operating temperature range (-37°C ~ 82°C) are identical across both parts. RoHS compliance and MSL rating (1 - Unlimited) are equivalent. The primary distinction is product status: 1DM23 is obsolete while 1DM3 is active, with differences in operating position and overtravel dimensions that do not affect functional substitution for standard SPST-NO switching applications.

Parameter Comparison

Engineering Selection Recommendations

The Honeywell 1DM3 is the direct active substitute for the obsolete 1DM23. Both parts are manufactured by Honeywell Sensing and Productivity Solutions within the DM series and maintain identical electrical ratings (10A AC, 125V AC, SPST-NO), mechanical characteristics (425gf operating force, 85gf release force, 1,000,000 cycle life), and environmental specifications (-37°C ~ 82°C operating range). Both parts carry RoHS compliance certification and MSL rating 1 (Unlimited moisture sensitivity). The 1DM3 is currently in active production status, ensuring long-term availability and supply chain continuity. Dimensional differences in operating position and overtravel do not affect electrical or functional performance for standard SPST-NO switching applications. Selection of the 1DM3 is appropriate for new designs and replacement applications requiring equivalent snap-action switching functionality.

Frequently Asked Questions (FAQ)

Q: Can the 1DM3 directly replace the 1DM23 in existing applications?

A: Yes. The 1DM3 maintains identical electrical specifications (10A AC, 125V AC, SPST-NO circuit), actuator type (round pin plunger), mounting configuration (panel mount snap-in), and termination style (quick connect 0.187"). Mechanical characteristics including operating force (425gf), release force (85gf), and cycle life (1,000,000 cycles) are equivalent. The parts are functionally interchangeable for SPST-NO switching applications.

Q: What are the differences between 1DM23 and 1DM3?

A: The primary differences are product status and dimensional specifications. The 1DM23 is obsolete while the 1DM3 is active. Operating position differs (0.355" vs. 0.750"), and overtravel specifications vary (0.235" vs. 0.375"). The 1DM3 includes a specified differential travel of 0.045". These dimensional differences do not affect electrical performance or functional compatibility for standard applications.

Q: Are packaging differences between 1DM23 and 1DM3 significant?

A: The 1DM23 is supplied in standard packaging while the 1DM3 is supplied in bulk packaging. This distinction affects order quantities and handling but does not impact component performance or electrical characteristics.

Q: Do both parts meet RoHS compliance requirements?

A: Yes. Both the 1DM23 and 1DM3 are RoHS Compliant and carry MSL rating 1 (Unlimited), indicating no moisture sensitivity restrictions during storage and handling.

Q: What is the mechanical life expectancy for these switches?

A: Both the 1DM23 and 1DM3 are rated for 1,000,000 mechanical cycles, providing equivalent durability and operational longevity for snap-action switching applications.