SCN-2649SC Equivalent & Substitute Parts

Part Overview

The SCN-2649SC is a snap action SPDT switch manufactured by Honeywell Sensing and Productivity Solutions, designed for chassis mount applications with screw terminal connections. This switch is rated for 15A at 125V AC and 500mA at 125V DC, featuring a lever roller actuator with on-momentary switch function. The product is currently classified as obsolete, making identification of compatible substitute parts essential for ongoing maintenance, repair, and system continuity in industrial control applications.

Substiute Parts

SCN-2649SC

Honeywell Sensing and Productivity SolutionsIn Stock: 855SCN-2649SC Datasheet

Current PartRFQ

BZ-7RW82132T-S

Honeywell Sensing and Productivity SolutionsIn Stock: 1485BZ-7RW82132T-S Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SCN-2649SC is determined by strict equivalence across electrical and mechanical parameters. The substitute part BZ-7RW82132T-S maintains identical specifications in all critical functional areas:

Electrical Equivalence Criteria:

• Circuit configuration: SPDT (Single Pole Double Throw)
• Switch function: On-Mom (On-Momentary)
• Current rating: 15A AC / 500mA DC
• Voltage rating: 125V AC / 125V DC

Mechanical Equivalence Criteria:

• Actuator type: Lever with roller
• Mounting configuration: Chassis mount
• Termination: Screw terminal
• Operating force: 141gf
• Release force: 21gf
• Operating position: 1.188" (30.2mm)
• Differential travel: 0.090" (2.3mm)
• Overtravel: 0.156" (3.96mm)

Environmental & Lifecycle Criteria:

• Operating temperature range: -55°C to 85°C
• Mechanical life: 20,000,000 cycles
• RoHS compliance: Yes
• Moisture sensitivity level: 1 (Unlimited)

The substitute part BZ-7RW82132T-S is manufactured by the same supplier (Honeywell Sensing and Productivity Solutions) within the same BZ series, ensuring design and performance continuity.

Parameter Comparison

Engineering Selection Recommendations

The BZ-7RW82132T-S is a direct functional equivalent to the obsolete SCN-2649SC. All electrical specifications, mechanical dimensions, actuator characteristics, and environmental operating parameters are identical between the two parts.

Product Status Consideration: The SCN-2649SC is classified as obsolete, while BZ-7RW82132T-S maintains active product status. This distinction is significant for long-term supply chain planning and component availability. The active status of BZ-7RW82132T-S ensures continued manufacturing support and availability for future procurement requirements.

Compliance Alignment: Both parts maintain RoHS compliance and identical moisture sensitivity ratings, ensuring regulatory and environmental compatibility in applications requiring these certifications.

Packaging Difference: The SCN-2649SC is supplied with standard packaging, while BZ-7RW82132T-S is supplied in bulk packaging. This packaging difference does not affect electrical or mechanical performance and relates only to order quantity and logistics considerations.

Frequently Asked Questions (FAQ)

Q: Can BZ-7RW82132T-S be used as a direct replacement for SCN-2649SC?

A: Yes. BZ-7RW82132T-S is electrically and mechanically equivalent to SCN-2649SC. All functional parameters, including circuit configuration, current and voltage ratings, actuator type, mounting configuration, and operating characteristics are identical.

Q: What is the difference between these two part numbers?

A: The primary difference is product status. SCN-2649SC is obsolete, while BZ-7RW82132T-S is active. Both parts are manufactured by Honeywell Sensing and Productivity Solutions within the BZ series. The packaging format differs (standard versus bulk), but this does not affect component performance.

Q: Are the mechanical dimensions identical?

A: Yes. Operating position (1.188" / 30.2mm), differential travel (0.090" / 2.3mm), and overtravel (0.156" / 3.96mm) are identical. Operating force (141gf) and release force (21gf) are also identical, ensuring identical actuator response characteristics.

Q: Do both parts meet the same environmental specifications?

A: Yes. Both parts operate across the identical temperature range (-55°C to 85°C) and maintain the same mechanical life rating of 20,000,000 cycles. Both are RoHS compliant with moisture sensitivity level 1 (unlimited).

Q: Is the screw terminal configuration the same?

A: Yes. Both parts use screw terminal termination style and are configured for chassis mount installation. Terminal specifications and mounting requirements are identical.

Q: Why would I choose BZ-7RW82132T-S over SCN-2649SC?

A: BZ-7RW82132T-S should be selected for new designs and ongoing procurement due to its active product status. This ensures continued manufacturing support, availability, and supply chain continuity. For existing systems using SCN-2649SC, BZ-7RW82132T-S provides a direct replacement path as the obsolete part becomes unavailable.