Equivalent & Substitute Parts for Honeywell 11SM1-T2 Snap Action Switch

Part Overview

The Honeywell 11SM1-T2 is a snap action switch with Single Pole Double Throw (SPDT) configuration, rated for 5A at 250V AC and 30V DC. This chassis-mounted switch features a round pin plunger actuator with solder turret termination and is designed for applications requiring reliable switching action with high mechanical cycle life. The part is currently in active production status with full RoHS compliance and unlimited moisture sensitivity rating (MSL 1).

Substitute parts become necessary when the primary part experiences supply constraints, extended lead times, or when design flexibility permits selection from qualified alternatives that meet the same electrical and mechanical specifications.

Substiute Parts

11SM1-T2

Honeywell Sensing and Productivity SolutionsIn Stock: 100011SM1-T2 Datasheet

Current PartRFQ

DB1C-A1AA

Hirose Electric Co LtdIn Stock: 919DB1C-A1AA Datasheet

SimilarRFQ

DC3C-A1AA

Hirose Electric Co LtdIn Stock: 1171DC3C-A1AA Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Honeywell 11SM1-T2 is determined by the following critical parameters:

Electrical Compatibility Requirements:

• Circuit configuration must be SPDT
• Current rating must support minimum 5A (AC/DC)
• Voltage rating must support minimum 250V AC and 30V DC
• Operating temperature range must encompass -55°C to 125°C

Mechanical Compatibility Requirements:

• Actuator type must be round pin plunger
• Mounting configuration must be chassis mount
• Termination must be solder turret compatible
• Mechanical life must meet or exceed 10,000,000 cycles

Regulatory and Environmental Requirements:

• RoHS compliance status must be maintained
• MSL rating must be 1 (Unlimited) or equivalent
• ECCN and HTSUS classifications must align for supply chain consistency

The substitute parts identified (DB1C-A1AA and DC3C-A1AA) share the same regulatory classification (ECCN: EAR99, HTSUS: 8536.50.7000) and MSL rating. However, detailed electrical and mechanical specifications for substitute parts are not provided in the available data, limiting direct parameter verification.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection: Honeywell 11SM1-T2

The Honeywell 11SM1-T2 maintains active product status with confirmed availability of 906 pieces in stock. This part carries full RoHS compliance certification and unlimited MSL rating, suitable for standard industrial and commercial applications. The active status ensures continued manufacturer support and consistent supply chain access.

Secondary Selection Consideration: DB1C-A1AA and DC3C-A1AA

Both Hirose Electric substitute parts (DB1C-A1AA and DC3C-A1AA) are classified as obsolete products. While inventory is currently available (877 and 1098 pieces respectively), obsolete status indicates discontinued manufacturing and potential future supply unavailability. These parts share identical regulatory classifications (ECCN: EAR99, HTSUS: 8536.50.7000) and MSL ratings with the primary part.

Selection Criteria:

For new designs and applications requiring long-term supply assurance, the Honeywell 11SM1-T2 is the recommended choice due to active product status. Substitute parts should be considered only when primary part availability is constrained and existing inventory of obsolete alternatives can satisfy immediate project requirements. Verification of electrical and mechanical parameter compatibility with substitute parts is required before implementation, as detailed specifications for Hirose alternatives are not provided in this reference.

Frequently Asked Questions (FAQ)

Q: What makes DB1C-A1AA and DC3C-A1AA suitable substitutes for the 11SM1-T2?

A: Both parts share the same regulatory classification (ECCN: EAR99, HTSUS: 8536.50.7000) and moisture sensitivity level (MSL 1 - Unlimited). However, complete electrical and mechanical specifications for these Hirose parts are not available in the provided data. Substitution eligibility requires verification that these parts meet the 11SM1-T2 specifications for SPDT circuit configuration, 5A current rating, 250V AC/30V DC voltage ratings, round pin plunger actuator, chassis mount configuration, solder turret termination, and 10,000,000 cycle mechanical life.

Q: Why are the Hirose substitute parts marked as obsolete?

A: Obsolete status indicates that Hirose Electric has discontinued manufacturing these parts. While current inventory exists (877 and 1098 pieces), future availability cannot be guaranteed. Obsolete parts should be used only for short-term supply solutions or existing product maintenance where the primary part is unavailable.

Q: Can I use DB1C-A1AA or DC3C-A1AA in new product designs?

A: Use of obsolete parts in new designs is not recommended due to supply discontinuation risk. The Honeywell 11SM1-T2, with active product status, is the appropriate choice for new designs requiring long-term production support and supply chain stability.

Q: What parameters must match for a part to be considered a true substitute?

A: Critical matching parameters include circuit configuration (SPDT), current rating (5A minimum), voltage ratings (250V AC and 30V DC minimum), actuator type (round pin plunger), mounting type (chassis mount), termination style (solder turret), operating temperature range (-55°C to 125°C), mechanical life (10,000,000 cycles minimum), and regulatory compliance (RoHS, MSL 1).

Q: Are there packaging differences between the main part and substitutes?

A: The Honeywell 11SM1-T2 is supplied in tray packaging. Packaging information for the Hirose substitute parts is not specified in the available data. Packaging compatibility should be verified with the supplier before procurement.

Q: What is the inventory status for each part?

A: Honeywell 11SM1-T2 has 906 pieces in stock (active product). DB1C-A1AA has 877 pieces in stock (obsolete). DC3C-A1AA has 1098 pieces in stock (obsolete). Current inventory levels do not guarantee future availability, particularly for obsolete parts.