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UnionwellHigh reliability sPDT momentary micro switch

SPDT momentary micro switch is produced by Unionwell, a professional micro switch manufacturer in China. It has the characteristics of small size, fast response and reliability, and is loved by many household equipment manufacturers and automobile manufacturers. It is widely used in automotive door switches, household appliance safety detection switches, etc.
Momentary SPDT  micro switches have a fast response speed and are available in two pins and three pins terminal types. They are small in size, only the size of a finger cover, and can be equipped with an operating handle. To meet the needs of special applications, we provide customized mass-produced sealed switches. You can choose the appropriate lever type, terminal type, operating force, etc. according to your project requirements.

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This video introduces Unionwell G10 series SPDT momentary micro switches to you and helps you choose a more suitable model.
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SPDT Momentary Micro Switch Specifications

SPDT momentary micro switch is compact in size and has various terminal types, such as direct plug-in PCB terminal, direct welding terminal, self-locking terminal, etc. The terminal thickness is 0.6mm, with two mounting holes, which can be installed firmly and not easy to loosen.

With a variety of lever types, it has a long service life and a mechanical life of up to 1 million times. If you are looking for a momentary micro switch with long service life and high reliability, then the following two micro switches are very suitable for your requirements.

SPDT momentary micro switch details

●Precision design of internal structure, high-quality contacts, faster response speed, more reliable equipment performance.
●Small size, compact structure, no need to consider space influence too much, more flexible installation.
●Complete terminal types, including welding terminals, straight PCB terminals, self-locking terminals, side PCB terminals, etc. Meet different needs.
●Longer service life, mechanical life can reach 1 million times, ensuring high durability and stability, extending the service life.
micro switch manufacturer-Unionwell G10

Parameter

Operating Frequency Electrical 10~30 cycles/min
Mechanical 120 cycles/min
Contact Resistance (Initiative) 100mΩ Max.(Depends on P/N)
Insulation Resistance (at 500VDC) 100MΩ Min.
Vbration Durability 10~55Hz,move 0.75mm(p-p)
Dielectric Strength 600VAC/Min(50~60Hz)
Operating Temperature -40℃~+85℃
Operating Humidity 85%RH Max
Service Life Electrical 10,000/50,000cycles (Depend on part NO.)
Mechanical 1,000,000 cycles

SPDT Momentary Micro Switch

  • FIM-1440 Specs.pdf

    SPDT Momentary Micro Switch- G10 Series PDF

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  • FIM-2405 Specs.pdf

    Subminiature Momentary Switch - G10A Series PDF

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G10 Series Momentary Micro Switch Application Case in Mouse

One of Unionwell's customers uses the G10 series SPDT momentary micro switch as a gaming mouse switch. Its fast response speed ensures accurate feedback for each click and improves the smoothness of control. The small and compact design is suitable for various mouse structures, while the high-durability materials greatly extend the service life, maintaining stable performance even in high-intensity gaming environments.

In order to allow customers to purchase satisfactory switches, Unionwell micro switch manufacturer specially supports customized R&D solutions and provides free samples.

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    Unionwell sealed car door micro switch Advantages
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    Other Micro Switches You May Be Interested in

    For many years, Unionwell has been a trusted micro switch wholesale manufacturer in the global market. We have been focusing on improving the quality of micro switches for more than 20 years, and our self-production and self-sales business model makes our products more price-competitive. In addition to SPDT momentary micro switches, we also produce a variety of SPDT micro switches, waterproof micro switches, automotive micro switches, etc.
    Clip Type Silent Sealed  Micro Switch G304/6/9 SeriesClip Type Silent Sealed  Micro Switch G304/6/9 Series-product
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    G304/6/9

    2024-10-14

    The Clip-type Silent Sealed Micro Switch G304/6/9 Series is the same sealed micro switch as the Unionwell G3 Series, but the difference is that the switch uses a silent button. This sealed micro switch is ideal for use in harsh environments and is protected from dust, water, and other contaminants.

    Unionwell is a leading micro switch manufacturer in China. With its compact design and durable construction, it is ideal for automotive applications, including home appliances, door locks, and other automotive micro switches.

    view detail
    01

    FAQ

    What is a SPDT momentary micro switch?

    A SPDT (single pole double throw) momentary micro switch is a mechanical switch with three terminals (COM, NO, NC). When the switch is pressed, the circuit switches from one path to another, but once released, the contacts automatically return to their original state. This switch is suitable for short-term trigger signals or fast switching circuits.

    How does an SPDT momentary micro switch work?

    The SPDT momentary micro switch has a metal dome structure inside. When the switch is pressed, the dome quickly switches the contacts, causing the common end (COM) to jump from the normally closed (NC) end to the normally open (NO) end. Once the button is released, the dome returns to its original position and COM reconnects to NC. This design gives the switch the characteristics of fast response and short switching.

    Is the SPDT momentary micro switch normally open or normally closed?

    SPDT momentary micro switch has two contacts: Normally Open (NO) and Normally Closed (NC), which can be selected according to the wiring method:
    Normally Open (NO): The circuit is disconnected when the switch is not pressed, and the circuit is connected when it is pressed.
    Normally Closed (NC): The circuit is connected when the switch is not pressed, and the circuit is disconnected when it is pressed.

    What are the application scenarios of SPDT momentary micro switches?

    SPDT momentary micro switches are widely used in various industries, such as
    In industrial equipment, as SPDT Momentary Contact Switch, control connection limit detection, relay triggering, PLC signal input, etc.
    In household appliances, it is used for refrigerator door control, washing machine start, coffee machine button, etc.
    In electronic equipment, as mouse control button detection, the button signal will be detected and transmitted to the control board.

    What are the common faults and causes of SPDT momentary micro switches?

    Contact burnout – Due to long-term high current or frequent switching operations, the contact surface is oxidized or melted, resulting in poor contact or failure.
    Mechanical jamming – The internal springs are aged, deformed or dusty, resulting in failure to reset or slow response after pressing.

    Contact non-conduction – Moisture, oxidation or contamination increase the contact resistance, making the circuit unable to conduct normally.
    Fractured springs – Overload or material fatigue causes damage to the metal springs, causing the switch to lose its elastic reset ability.
    Casing damage – Physical impact or environmental factors (such as high temperature, chemical corrosion) cause the switch casing to crack or deform, affecting normal use.
    Loose installation – The switch is not firmly fixed under long-term use or vibration environment, resulting in unstable contact or malfunction.

    Regular inspection and reasonable selection of high-quality SPDT momentary micro switches that meet current and voltage specifications can effectively reduce the occurrence of faults.

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