Honeywell 111SM1-T2 Subminiature Basic Switch Overview
The Honeywell 111SM1-T2 basic switch is part of the MICRO SWITCH SM Series, a premium subminiature switch family developed for repeatability, compact size, and long mechanical life. When technical teams search for the Honeywell 111SM1-T2 switch, they are often trying to confirm actuator style, electrical rating, travel values, and mounting suitability before integrating it into equipment or replacing an existing component.
What Type of Switch Is the Honeywell 111SM1-T2?
The Honeywell 111SM1-T2 is a subminiature snap action basic switch with SPDT circuitry. It is commonly associated with a straight leaf lever actuator and chassis mounting. Because this Honeywell 111SM1-T2 basic switch belongs to the SM Series, it benefits from a product family known for precision operation, compact form factor, and a wide operating temperature range.
Key Technical Specifications
Available product data identifies the Honeywell 111SM1-T2 switch with a 5 A current rating, 250 V AC rating, and 30 V DC rating. DigiKey listing data also describes solder turret termination, 198 gf operating force, 57 gf release force, 8.9 mm operating position, 5.5 mm pretravel, 0.76 mm differential travel, and 0.76 mm overtravel. The same source lists operating temperature from -55°C to 125°C and a mechanical life of 10,000,000 cycles.
Series-level Honeywell documentation adds useful context. The SM Series is described as a premium subminiature basic switch family offering high precision, repeatability, broad temperature capability, and long life. Honeywell also notes that the family can support power-duty switching and is designed for harsh operating conditions. That helps explain why the Honeywell 111SM1-T2 subminiature switch appears in demanding industrial and aerospace-adjacent searches.
Why the Honeywell 111SM1-T2 Is Technically Relevant
A compact switch is only valuable if its performance remains stable over time. The Honeywell 111SM1-T2 basic switch stands out because it combines a small physical size with meaningful electrical capacity and long mechanical endurance. For OEM designs and service environments, that balance can reduce uncertainty in applications where switch consistency affects overall system behavior.
Typical Applications
The Honeywell 111SM1-T2 subminiature switch can be relevant in machinery, industrial assemblies, precision control interfaces, and equipment that depends on accurate mechanical actuation. Because the SM Series is also associated with high precision and extended life, it is a logical option where small movement must trigger a clean electrical response.
For more information about Honeywell, exploring the broader MICRO SWITCH portfolio can provide useful context for cross-references and related actuator variants.
FAQ
What is the Honeywell 111SM1-T2?
The Honeywell 111SM1-T2 is a subminiature snap action basic switch from the MICRO SWITCH SM Series. It is used in applications that require compact size, reliable switching, and repeatable actuation.
What circuit configuration does the 111SM1-T2 use?
This model is commonly listed as an SPDT switch, which allows one mechanical action to change the state of the circuit in a clear and controlled way.
What actuator is used on the 111SM1-T2?
The Honeywell 111SM1-T2 is associated with a straight leaf lever actuator. This style is useful in systems where mechanical movement must be transferred smoothly to the switch body.
What are the electrical ratings of the 111SM1-T2?
Available product data identifies this switch with a 5 A current rating, 250 V AC rating, and 30 V DC rating, making it suitable for a range of industrial switching tasks.
What is the mechanical life of the 111SM1-T2?
DigiKey product data lists the mechanical life at 10,000,000 cycles. That long service life is one of the defining advantages of the SM Series platform.
What temperature range can the Honeywell 111SM1-T2 handle?
Available product data lists an operating temperature range of -55°C to 125°C for this model, while broader SM Series documentation highlights wide temperature capability across the family.
Where is the Honeywell 111SM1-T2 basic switch used?
It may be used in machinery, industrial controls, precision mechanisms, and compact electromechanical systems where repeatable actuation and long life are priorities.