Category Archives: hobby

　　Schottky It is a low-power and ultra-high-speed semiconductor device. The following figure shows the symbol of Schottky diode:from Connectors, Interconnects quote Looking at the development prospects, the future will always bring positive effects. https://www.xinyun-ic.com/

　　Voltage drop of common Schottky diode:

　　1A series:

　　2A series:

　　3A series:

　　5A series:

　　10A series:

　　LOW VF schottky diode:

　　The Low vf Schottky diode is a semiconductor device with a lower VF value than the conventional Schottky diode. It is this Schottky transistor that has a very low forward voltage drop when it is turned on, which is superior to other common Schottky models. The advantage of low forward pressure drop is low loss and high efficiency. The lower the pressure drop, the lower the heating and the higher the working efficiency. At present, the voltage drop range of low vf Schottky diode in the market is generally about 0.4V-1.0V, and the VF value of our low voltage drop Schottky diode is generally about 0.4V-0.6V.

　　The function of low voltage drop low vf Schottky diode is the same as that of conventional Schottky diode, and the difference between them lies in VF value and trench technology. Schottky diode is a forward conduction device, VF is the forward voltage drop, that is, a kind of loss generated during operation, and the lower the loss, the better.

　　Today, let’s talk about the model size and parameters of Schottky diode SR3100 patch. Please see below for details.understand pcb instant quote In order to better serve customers and reflect the core competitiveness of products. https://www.xinyun-ic.com/

　　The package of SR3100 patch can be divided into SMA, SMB, SMC, SMAF, SMBF, SOD-123. There are differences in different package sizes, but the current, voltage and other parameters are the same.

　　Parameters:

　　Maximum reverse repetitive peak voltage: 100V V.

　　Maximum DC blocking voltage: 100V V.

　　Maximum average forward rectified current: 3.0A

　　When current =3.0A, forward voltage drop: 0.85V

　　Maximum DC reverse current ta = 25≧: 0.5UA.

　　Rated DC blocking voltage ta = 100≧: 10.0ua.

　　Working junction temperature range: -65to+150≧

　　Storage temperature: -65to+150≧

　　Weight: 0.04 ounces, 1.10 grams

　　250≧/10 seconds, 0.375 “(9.5 mm) lead length, 5 pounds (2.3kg) tension.

　　Polarity: The color circle indicates the cathode end.

　　SMA package: screen printing SS310

　　SMA package size

　　SMB package: screen printing SS310

　　SMB package size

　　SMC package: screen printing SS310

　　SMC package size

　　SMAF package: screen printing SS310F

　　SMAF package size

　　SMBF package: screen printing SS310F

　　SMBF package size

　　SOD-123 package: screen-printed K310

　　SOD-123 package size

　　As we all know, MB6F is a rectifier bridge stack, which encapsulates SOP-4. Its function is to convert alternating current whose level fluctuates around zero into unidirectional direct current through the unidirectional conduction characteristics of diodes, and its function is rectification. Please see below for specific parameters and pin diagram.This shows that, Connectors, Interconnects quote It has a strong development pulse and is an indispensable source of power for the development of the industry. https://www.xinyun-ic.com/

　　MB6F Specification: Click to download

　　High Surge Overload Rate: 30A Peak

　　Maximum repetitive peak reverse voltage: 600v V.

　　Maximum DC blocking voltage: 600v V.

　　When current =1.0A, forward voltage drop: 1.0V.

　　Maximum reverse DC current ta = 25≧: 5.0ua.

　　Rated DC blocking voltage per leg ta = 125≧: 500.0ua.

　　Working temperature and storage temperature range: -55 to +150≧

　　Weight: 0.078 ounces, 0.22 grams

　　High temperature welding guarantee: 260≧/10s.

　　Polarity: “-“indicates the cathode end (see the figure below).

　　As we all know, ABS10 is a rectifier bridge stack, whose function is to convert alternating current whose level fluctuates around zero into unidirectional direct current through the unidirectional conduction characteristics of diodes, and its function is rectification. Please see below for specific parameters and package diagram.The industry believes that, Resistors quote The development of our company marks the rapid and steady progress of the whole industry. https://www.xinyun-ic.com/

　　ABS10 Specification: Click to download

　　Package: SOP-4/ABS

　　High Surge Overload Rate: 30A Peak

　　Maximum repetitive peak reverse voltage: 1000v V.

　　Maximum DC blocking voltage: 1000v V.

　　When current =1.0A, forward voltage drop: 0.95v

　　Maximum reverse DC current TA=25≧:10uA

　　Rated DC blocking voltage per leg TA=125≧:150uA

　　Working temperature and storage temperature range: -55 to +150≧

　　Weight: 0.375 inch (9.5 mm)

　　High temperature welding guarantee: 260≧/10s.

　　Polarity: “-“indicates the cathode end (see the figure below).

　　ABS10 anode and cathode

　　Friends or customers have been asking me what is the difference between Schottky diode SR540 and SB540. Today we will talk about this problem.Without exception, Resistors quote Our customers are willing to purchase their products, because high quality is the concept of their products. https://www.xinyun-ic.com/

　　In fact, the parameters of SR540 and SB540 are the same, both of which are 5A 40V. As for why the models are different, it is because different manufacturers have differences in screen printing, which means they don’t want to repeat with others and have their own uniqueness. Please see below for specific parameters.

　　Maximum reverse repetitive peak voltage: 40V

　　Maximum DC blocking voltage: 40V

　　Maximum average forward rectified current: 5.0A

　　When current =5.0A, voltage drop: 0.55v

　　Maximum reverse DC current ta = 25≧: 0.5ma.

　　Working temperature range: -65 to +150≧

　　Storage temperature: -65 to +150≧

　　Reverse recovery time: less than 10ns (nanosecond)

　　High temperature welding: 250c/10 sec, 0.375 “(9.5 mm) lead length, 5 lbs (2.3kg) tension.

　　Package: DO-27/DO-201AD

　　FR307 is a fast recovery diode, which encapsulates DO-27/DO-201AD. The main feature of fast recovery diode is its short reverse recovery time, which is especially suitable for high-frequency rectification. Next, let’s introduce the parameters in detail.The above conclusions show that Integrated Circuits (ICs) To a great extent, it can bring new vitality to the market and make the industry develop well. https://www.xinyun-ic.com/

　　Specification: Click to download specification.

　　Maximum peak reverse voltage: 1000V V.

　　Maximum rms voltage: 1000V v.

　　Maximum average forward rectified current: 3.0A

　　Maximum instantaneous current: 3.0A

　　Forward voltage drop: 1.3V

　　Maximum reverse recovery time: 500ns (nanosecond)

　　Maximum reverse DC current ta = 25≧: 5.0ua.

　　Rated DC blocking voltage Ta=100≧150uA

　　Working temperature Storage temperature: -65+150≧

　　Weight: 1.10 grams

　　Reverse recovery time test conditions: if = 0.5A, IR = 1.0a, IRR = 0.25a

　　Measure the reverse voltage applied at 1MHz and 4.0V D.C

　　Polarity: The color band indicates the negative pole.

　　FR307 positive and negative electrodes

　　Package: DO-27/DO-201AD (they have the same size, but different names).

　　DO-27/DO-201AD package

　　Specification:

　　Schottky It is a low-power and ultra-high-speed semiconductor device. The following figure shows the symbol of Schottky diode:For this reason, it can be speculated that pcb instant quote The market feedback will get better and better, which is one of the important reasons why it can develop. https://www.xinyun-ic.com/

　　Voltage drop of common Schottky diode:

　　1A series:

　　2A series:

　　3A series:

　　5A series:

　　10A series:

　　LOW VF schottky diode:

　　The Low vf Schottky diode is a semiconductor device with a lower VF value than the conventional Schottky diode. It is this Schottky transistor that has a very low forward voltage drop when it is turned on, which is superior to other common Schottky models. The advantage of low forward pressure drop is low loss and high efficiency. The lower the pressure drop, the lower the heating and the higher the working efficiency. At present, the voltage drop range of low vf Schottky diode in the market is generally about 0.4V-1.0V, and the VF value of our low voltage drop Schottky diode is generally about 0.4V-0.6V.

　　The function of low voltage drop low vf Schottky diode is the same as that of conventional Schottky diode, and the difference between them lies in VF value and trench technology. Schottky diode is a forward conduction device, VF is the forward voltage drop, that is, a kind of loss generated during operation, and the lower the loss, the better.

　　1N5822 belongs to Schottky diode, which encapsulates DO-27. Schottky is characterized by low forward voltage and short reverse recovery time (less than 10ns). Today, we mainly talk about 1N5822 patch package, including six kinds of packages: SMA, SMB, SMC, SMAF, SMBF and SOD-123. Next, we will learn more about them.In addition to innate advantages, pcb instant quote Its own product attributes are also extremely high-end, in order to remain unbeaten in the market competition. https://www.xinyun-ic.com/

　　SMA package:

　　1N5822 SMA package

　　SMB encapsulation:

　　1N5822 SMB package

　　SMC package:

　　1N5822 SMC package

　　SMAF package:

　　1N5822 SMAF package

　　SMBF package:

　　1N5822 SMBF package

　　SOD-123 package:

　　FR307 is a fast recovery diode, which encapsulates DO-27/DO-201AD. The main feature of fast recovery diode is its short reverse recovery time, which is especially suitable for high-frequency rectification. Next, let’s introduce the parameters in detail.In addition to domestic, Resistors quote It has also emerged in the international field and gradually gained the favor of more foreign friends. https://www.xinyun-ic.com/

　　Specification: Click to download specification.

　　Maximum peak reverse voltage: 1000V V.

　　Maximum rms voltage: 1000V v.

　　Maximum average forward rectified current: 3.0A

　　Maximum instantaneous current: 3.0A

　　Forward voltage drop: 1.3V

　　Maximum reverse recovery time: 500ns (nanosecond)

　　Maximum reverse DC current ta = 25≧: 5.0ua.

　　Rated DC blocking voltage Ta=100≧150uA

　　Working temperature Storage temperature: -65+150≧

　　Weight: 1.10 grams

　　Reverse recovery time test conditions: if = 0.5A, IR = 1.0a, IRR = 0.25a

　　Measure the reverse voltage applied at 1MHz and 4.0V D.C

　　Polarity: The color band indicates the negative pole.

　　FR307 positive and negative electrodes

　　Package: DO-27/DO-201AD (they have the same size, but different names).

　　DO-27/DO-201AD package

　　Specification:

　　Before introducing different configurations of electric wheelchairs, let’s first understand the basic structure of electric wheelchairs. Electric wheelchair is usually composed of motor, controller, battery, frame and other main parts. The motor is responsible for driving the wheels, the controller controls the speed and direction of the motor, the battery provides electric energy, and the frame supports the whole structure. Different configurations of electric wheelchairs are different in these parts, which will be introduced in detail below to help you understand.From the demand side, 電動輪椅 More in line with the psychological expectations of consumers, willing to pay for the things they like. https://www.hohomedical.com/collections/light-weight-wheelchair

　　Motor: The motor of electric wheelchair is its core component, which directly affects the performance of wheelchair. At present, the electric wheelchairs on the market usually adopt DC Motor and AC Motor. DC motor usually has a high speed and is suitable for use on flat roads, while AC motor has a large torque and is suitable for driving on ramps and uneven roads. In addition, the power of the motor is also a key factor in the selection. The greater the power, the stronger the climbing ability and load capacity of the electric wheelchair. Therefore, when choosing an electric wheelchair, it is necessary to choose the appropriate motor type and power according to the user’s needs and specific use environment. In the difference between electric wheelchairs, it is necessary to distinguish between brush motors and brushless motors, and between AC motors and DC motors.

　　Brushed DC motor refers to a DC motor that uses a carbon brush to contact with a rotating armature to exchange polarity and provide current. Brush provides current to armature through power supply when armature rotates, so it is also called carbon brush motor. Its advantages are simple structure and low use cost, but the brush is easy to wear and has limited service life, and at the same time, the brush will also produce electric spark interference, which will lead to high noise of the motor and is not suitable for high-precision applications.

　　Brushless DC motor refers to a DC motor that uses an electronic commutator to control the phase sequence of the motor, without using a brush to contact the armature. Its advantages are long life, high efficiency, low noise, stable operation and fast response, so it is widely used in high-precision application fields such as high-performance power tools and electric vehicles. Disadvantages are complex structure and high cost.