بسته 20 تایی میکرو سوئیچ فشاری دارای ابعاد 6mmx 6mmx5mm

بسته 20 تایی میکرو سوئیچ فشاری دارای ابعاد 6mmx 6mmx5mm

میکروسوئیچ در حقیقت یک کلید قطع و وصل ساده می‏ باشد که برای کنترل جریان برق در مدارهای الکترونیکی به کار می ‏رود. میکروسوئیچ یا Tactile Switch نوعی از ابزارهای کلیدزنی در صنعت برق و الکترونیک به شمار می رود که کاربردهای بسیار متنوعی در صنعت دارند به طوری که ما همه روزه از قطعاتی استفاده می کنیم که میکروسوئیچ در آنها به کار گرفته شده اند. یک میکرو سوئیچ (micro switch) که گاهی اوقات "Tactile Switch " نامیده می شود، یک نوع کلید با اتصال آنی و لحظه ای است که بطور گسترده در ابزار خودرو، صنعت الکترونیک، پزشکی، مخابرات، هوا فضا، رباتیک و ... استفاده می شود.
جنس این میکروسوئیچ یا Tactile Switch به صورت فلزی یا پلاستیکی می ‏باشد و از قطعات مختلفی همچون کاور، پلانجر، اتصال گنبدی شکل (که با رها کردن دکمه، پلانجر را به حالت اول باز می گرداند)، شاسی و ترمینال ها تشکیل شده است.
این Tactile Switch به صورت Normally Open می باشد.
این سوییچ ها از لحاظ ساختاری در دو مدل تولید می شوند: معمولی و Sealed که همین دو مدل نیز با توجه به نوع سوار شدن روی مدارات به دو زیر شاخه تقسیم می شوند: PCB Insert Hole Terminals و PCB Surface Mounted Terminals.
این میکروسوییچ دارای ابعاد 5 × 6 × 6 با 4 پین می باشد و توان آن 250 ولت AC می باشد.

Description:
In electrical engineering, a switch is an electrical component that can disconnect or connect the conducting path in an electrical circuit, interrupting the electric current or diverting it from one conductor to another.
Push-button are normally-open tactile switches. Push buttons allow us to power the circuit or make any particular connection only when we press the button. Simply, it makes the circuit connected when pressed and breaks when released. A push-button is also used for triggering of the SCR by gate terminal. These are the most common buttons which we see in our daily life electronic equipment.
The pins are normally open (disconnected) and when the button is pressed they are momentarily closed.
A Push-Button can also be used for triggering purposes like SCR. An SCR is a gate-controlled Switch which needs a triggering pulse. So, for this, you can add a Push button in the circuit to give a triggering pulse.
Switches are made in many different configurations; they may have multiple sets of contacts controlled by the same knob or actuator, and the contacts may operate simultaneously, sequentially, or alternately. A switch may be operated manually, for example, a light switch or a keyboard button, or may function as a sensing element to sense the position of a machine part, liquid level, pressure, or temperature, such as a thermostat. Many specialized forms exist, such as the toggle switch, rotary switch, mercury switch, pushbutton switch, reversing switch, relay, and circuit breaker. A common use is control of lighting, where multiple switches may be wired into one circuit to allow convenient control of light fixtures. Switches in high-powered circuits must have special construction to prevent destructive arcing when they are opened.
In a switch where the contacts remain in one state unless actuated, such as a push-button switch, the contacts can either be normally open (abbreviated "n.o." or "no") until closed by operation of the switch, or normally closed ("n.c." or "nc") and opened by the switch action.
The switch is used to supply the input signals to actuate a device or equipment. It is designed with a small footprint suited for mounting onto the surface of printed circuit boards (PCB) made to connect electronic components to form electronic circuits.
The contact dome also acts as a movable contact in a tactile switch. The resistance value (contact resistance) which is generated between a movable contact and a fixed contact when a switch is turned on can be stabilized by using specific materials, surface processing, and shape enabling high durability capable of withstanding 100 thousand to 10 million times of use.
There are two types of Tactile Switches: Tactile Switches and Sealed Tactile Switches.
They are further sub-categorized into PCB Insert Hole Terminals Types or PCB Surface Mounted Terminals Types, depending on how the switch is mounted to a PCB.

Features:
Size: 6 x 6 x 5mm
Pin Number: 4pin
Temperature: -30 ~ +70 Centigrade
Withstand Voltage: 250VAC
Rated Load: DC 12V 50mA
Contact Resistance: ≤0.03Ω
Insulation Resistance: ≥100MΩ