AM1106K Equivalent & Substitute Parts

Part Overview

The AM1106K is a snap action switch manufactured by Panasonic Electric Works, featuring SPDT (Single Pole Double Throw) circuit configuration with On-Mom (momentary) switching function. Rated for 10A AC at 125V and 500mA DC at 125V, this component is designed for chassis mount applications with solder lug termination. The part is currently obsolete, making equivalent substitutes necessary for ongoing maintenance and new designs requiring compatible switching functionality.

Substiute Parts

AM1106K

Panasonic Electric WorksIn Stock: 763AM1106K Datasheet

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BM-1R

Honeywell Sensing and Productivity SolutionsIn Stock: 998BM-1R Datasheet

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BZ-2RS

Honeywell Sensing and Productivity SolutionsIn Stock: 1125BZ-2RS Datasheet

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BZ-RX20

Honeywell Sensing and Productivity SolutionsIn Stock: 1212BZ-RX20 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AM1106K is determined by the following critical parameters:

Primary Compatibility Criteria:

• Circuit configuration must be SPDT
• Switch function must be On-Mom (momentary action)
• Voltage rating must support 125V AC minimum
• Current rating must meet or exceed 10A AC requirement
• Mounting type must be Chassis Mount
• Termination style must be Solder Lug

Secondary Compatibility Considerations:

• Operating temperature range should encompass the original -25°C to 80°C specification
• Actuator type (overtravel plunger preferred for mechanical similarity)
• Mechanical life rating should support equivalent cycle requirements

Based on these criteria, the following parts qualify as substitutes:

• BZ-2RS: Meets all primary criteria with enhanced current rating (15A AC) and superior mechanical life (20,000,000 cycles)
• BM-1R: Exceeds current rating (22A AC) but uses different actuator type (round pin plunger); maintains solder lug termination and chassis mount configuration
• BZ-RX20: Meets voltage and current specifications but differs in switch function (On-On instead of On-Mom) and termination style (screw terminal instead of solder lug); listed as obsolete

Parameter Comparison

Engineering Selection Recommendations

BZ-2RS (Recommended Primary Substitute)

The BZ-2RS is the optimal substitute for the AM1106K. It maintains identical circuit configuration (SPDT), switch function (On-Mom), and termination style (solder lug). The 15A AC current rating exceeds the original 10A requirement, providing design margin. Both parts feature overtravel plunger actuators with comparable mechanical characteristics. The BZ-2RS is currently active in production with RoHS compliance certification. Operating temperature range (-55°C to 85°C) encompasses the original specification. Mechanical life rating (20,000,000 cycles) significantly exceeds the original part.

BM-1R (Secondary Substitute)

The BM-1R provides the highest current rating (22A AC) among available substitutes, suitable for applications requiring additional current capacity. It maintains SPDT circuit, On-Mom function, and solder lug termination. The round pin plunger actuator differs mechanically from the original overtravel plunger design but operates within compatible force and travel parameters. This part is active in production with RoHS compliance. DC current rating is not specified; verification may be required for DC applications.

BZ-RX20 (Not Recommended)

The BZ-RX20 is not suitable as a direct substitute. Although it matches voltage and current specifications, the On-On switch function differs fundamentally from the required On-Mom operation. Screw terminal termination is incompatible with solder lug circuit board connections. The part is obsolete, limiting long-term availability. This part should only be considered if circuit design specifically requires On-On functionality and screw terminal connections.

Frequently Asked Questions (FAQ)

Q: Can BZ-2RS directly replace AM1106K in existing designs?

A: Yes. The BZ-2RS maintains identical SPDT circuit configuration, On-Mom switch function, and solder lug termination. Mechanical and electrical parameters are compatible. The higher current rating (15A vs. 10A) and extended mechanical life provide improved performance margins.

Q: What is the key difference between BZ-2RS and BM-1R?

A: Both are suitable substitutes, but differ in actuator design and current rating. BZ-2RS uses an overtravel plunger (matching the original AM1106K design) with 15A AC rating. BM-1R uses a round pin plunger with higher current capacity (22A AC). Selection depends on mechanical space constraints and current requirements.

Q: Why is BZ-RX20 listed as a substitute if it has different specifications?

A: BZ-RX20 is listed in the original AM1106K substitute field but is not recommended for direct replacement. It differs in switch function (On-On vs. On-Mom) and termination style (screw terminal vs. solder lug). It should only be used if the application specifically requires these different characteristics.

Q: Are all substitute parts RoHS compliant?

A: BZ-2RS and BM-1R are both RoHS compliant. The original AM1106K RoHS status is not specified. If RoHS compliance is a design requirement, BZ-2RS or BM-1R are appropriate selections.

Q: What is the operating temperature difference between AM1106K and substitutes?

A: The AM1106K operates from -25°C to 80°C. Both BZ-2RS and BM-1R extend this range to -55°C to 85°C, providing wider environmental tolerance. This is advantageous for applications with extreme temperature exposure.

Q: Can BM-1R be used in DC applications?

A: BM-1R DC current rating is not specified in available documentation. The original AM1106K supports 500mA DC at 125V. If DC operation is required, BZ-2RS is the confirmed substitute, as it explicitly supports 500mA DC at 125V.

Q: What is the mechanical life advantage of substitutes?

A: The AM1106K has 5,000,000 cycle mechanical life. Both BZ-2RS and BM-1R provide 20,000,000 cycles, representing a 4x improvement. This extended life is beneficial for high-cycle applications.