MB20 – 11mm PCB Mounting CT Buzzer (12V) The MB20 – 11mm PCB Mounting CT Buzzer is a compact, reliable, and easy-to-integrate audio indicator designed for a wide range of electronic circuits. Operating at 12V with a clear continuous tone, this buzzer offers stable performance for alarms, notifications, safety indicators, and embedded systems. Its compact 11mm pitch makes it ideal for tight PCB layouts, while its sturdy construction ensures long-term durability. Built for consistent sound quality, the MB20 delivers a loud output of 85 dB with a stable 4 KHz frequency, making it suitable for consumer electronics, home appliances, DIY projects, and industrial equipment. With low power consumption, a wide 1.5–27V operating range, and simple PCB mounting, this buzzer is an excellent choice for engineers and hobbyists building audio alert systems. Features: Compact 11mm pitch design fits easily into small PCB spaces. Produces a loud 85 dB continuous tone suitable for clear audible alerts. Wide operating voltage range of 1.5V to 27V, offering flexibility for multiple circuits. Durable ABS housing ensures long-lasting performance in various environments. Low current consumption (max 15 mA) for efficient operation in battery-powered devices. Easy-to-mount PCB design with 8mm lead length for quick installation.

MB27A - 27mm Average Continuous 1.5V to 27V DC An audio signaling device like a beeper or buzzer may be electromechanical or piezoelectric or mechanical type. The main function of this is to convert the signal from audio to sound. Generally, it is powered through DC voltage and used in timers, alarm devices, printers, alarms, computers, etc. Based on the various designs, it can generate different sounds like alarms, music, bells & sirens. Applications: Electrical alarms Educational purposes Security applications Electronic Metronomes Household applications

MB27F - 27mm Flat Loud Continuous Buzzer An audio signaling device like a beeper or buzzer may be electromechanical or piezoelectric or mechanical type. The main function of this is to convert the signal from audio to sound. Generally, it is powered through DC voltage and used in timers, alarm devices, printers, alarms, computers, etc. Based on the various designs, it can generate different sounds like alarm, music, bell & siren. Applications: Electrical alarms Educational purposes Security applications Electronic Metronomes Household applications Also check the MB27M - Maruti 27mm Musical Buzzer . It discusses the features of the buzzer, including its operating voltage, size, and compatibility with other microcontrollers. The buzzer is small and can be easily mounted on a breadboard or perf board.

MB27L2 - 27mm Loud Intermittent Buzzer 1.5V to 15V DC A buzzer is a small yet efficient component to add sound features to our project/system. It is a very small and compact 2-pin structure hence can be easily used on breadboard, Perf Board and even on PCBs which makes this a widely used component in most electronic applications. There are two types of buzzers that are commonly available. The one shown here is a simple buzzer that when powered will make a Beep Beep Beep. Sound due to the internal oscillating circuit present inside it. But, the one shown here is most widely used because it can be customized with the help of other circuits to fit easily in our application. Applications: Electrical alarms Educational purposes Security applications Electronic Metronomes Household applications Also check the MB35L2 - 35mm Loud Intermittent Buzzer from Iotcart. The buzzer operates within a voltage range of 1.5 to 15V DC, with good frequency response.

MB27M - Maruti 27mm Musical Buzzer 5V to 15V DC A buzzer is a small yet efficient component to add sound features to our project/system. It is a very small and compact 2-pin structure hence can be easily used on breadboards, Perf Board and even on PCBs which makes this a widely used component in most electronic applications. There are two types of buzzers that are commonly available. The one shown here is a simple buzzer which when powered will give a musical tone. Sound due to the internal oscillating circuit present inside it. But, the one shown here is most widely used because it can be customized with the help of other circuits to fit easily in our application. It is mountable via screws on the side to any surface. It has low current consumption and has flange-type mounting. Applications: Electrical alarms Educational purposes Security applications Electronic Metronomes Household applications

MB35L - 35mm Loud Continuous Buzzer This is a DC 1.5-15V Active buzzer. It comes with 2 Pin terminals. This buzzer is a small yet efficient component to add sound features to our project/system. It is very small and compact 2-pin structure hence can be easily used on breadboard, Perf Board and even on PCBs which makes this a widely used component in most electronic applications. There are two types of buzzers that are commonly available. The one shown here is a simple buzzer which when powered will make a Continuous Beep. Sound due to the internal oscillating circuit present inside it. But, the one shown here is most widely used because it can be customized with help of other circuits to fit easily in our application. Applications: Electrical alarms Educational purposes Security applications Electronic Metronomes Household applications

MB35L - 35mm Loud Continuous Buzzer 1.5V to 15V DC A buzzer is a small yet efficient component to add sound features to our project/system. It is a very small and compact 2-pin structure hence can be easily used on breadboards, Perf Board and even on PCBs which makes this a widely used component in most electronic applications. There are two types of buzzers that are commonly available. The one shown here is a simple buzzer which when powered will make a Continuous Beep. Sound due to the internal oscillating circuit present inside it. But, the one shown here is most widely used because it can be customized with the help of other circuits to fit easily in our application. Applications: Electrical alarms Educational purposes Security applications Electronic Metronomes Household applications

MB35M - 35mm Musical Buzzer An audio signaling device like a beeper or buzzer may be electromechanical or piezoelectric or mechanical type. The main function of this is to convert the signal from audio to sound. Generally, it is powered through DC voltage and used in timers, alarm devices, printers, alarms, computers, etc. Based on the various designs, it can generate different sounds like alarm, music, bell & siren. Applications: Electrical alarms Educational purposes Security applications Electronic Metronomes Household applications Communication Devices

MC-38 Wired Magnetic House Security Alarm Sensor for Door and Windows MC-38 Wired Door Window Sensor Magnetic Switch Home Alarm System can be used as a door or window security system. It produces the signal when moved away from each other which can be fed to the microcontroller to perform the desired action as per requirement. This sensor is suitable to use for triggering an alarm or ON/OFF light inside a cupboard sliding door. This wired sensor is triggered by the magnet. When the magnet is closed by, the circuit is closed or open if the magnet is far from the sensor. This MC-38 Magnetic Contact Switch Sensor acts like a normal switch so, you can connect to the Ground(GND) pin too. Not necessarily connect to power supply. Note : Normally closed: When the magnet is together, the circuit is conductive( light on); when the magnet is separate, the circuit is not conductive ( light off ). For example: Install on the door, close door light on. open door light off. Applications: Doors Windows Sliding cupboards Home Security Projects

MCP2515 Can Bus Module Board Controlled Area Network of simple CAN is a bus standard that allows a Microcontroller and its peripheral devices to communicate without the need of a host device or a computer. The MCP2515 CAN bus module is designed with an SPI 51 Single Chip Program and features a TJA1050 Receiver. It is created to control a CAN Bus device by SPI interface with your MCU. It is best used by microcontrollers and boards compatible with Arduino like UNO boards. The MCP2515 CAN Bus Controller is a simple Module that supports CAN Protocol version 2.0B and can be used for communication at 1Mbps. In order to set up a complete communication system, you will need two CAN Bus modules. The MCP2515 CAN bus module consists of standard frames, extended frames, and remote frames. You can use the serial port of the  MCP2515 CAN bus module to view communication data as well. Pin Details VCC :5V power input pin GND : power ground pin CS : SPI SLAVE select pin (Active low) SO : SPI master input slave output lead SI : SPI master output slave input lead SCLK: SPI clock pin INT: MCP2515 interrupt pin Pin Diagram: Pin Diagram of MCP2515 Can Bus Module Board Applications: Electronic Gear Shift System Automobiles Main Interface in Automation (like industrial) Medical Equipment Robotics Auto Start/Stop of Car Engine