Alloy resistors mainly function to detect current, and thus are also called current detection resistors, sampling resistors or sampling resistors by engineers, etc. The main material of alloy resistors is copper alloy. Each manufacturer has different material ratios during production and research and development. Common alloy resistor materials in the market include: manganese-copper alloy, iron-chromium-aluminum alloy, constantan alloy, nickel-chromium alloy, Kamal alloy, nickel-copper alloy, etc. It features low resistance, high stability, high power and so on.The mainstream alloy resistor is the surface mount alloy resistor. The main material of the alloy is copper. When other materials are added, it becomes constantan, manganese copper, etc. There are numerous other auxiliary materials, but their main performance is determined by the alloy material itself.

TVS (Transient Voltage Suppressor) diodes are components used to protect sensitive components such as semiconductors. They are designed to limit the voltage within the circuit at a set voltage when there is a voltage surge. Their functions are similar to those of filters on air lines or water pipes. TVS diodes are used in integrated circuits (ics) to protect against overvoltage, arc effects, rapid current changes (EFT), electrostatic discharge (ESD), induced load switching, and even lightning strikes. The uses and application scope of transient voltage suppressors include protecting the following components and devices: MOS memory, telecommunication equipment, microprocessors, AC power lines, and household electronic devices

Three-terminal fuses are chip surface mount products, typically used in lithium-ion battery packs as secondary protection. They enable timely action when exposed to overcurrent and overvoltage risks, effectively reducing fires and explosions caused by overcharging, overdischarging, and short circuits in lithium-ion batteries, and keeping the damage to circuits and components within the smallest possible area. Applications include: walkie-talkies, vacuum cleaners, power tools, tablet computers, electric bicycles, uninterruptible power supplies and portable energy storage, etc., which are applied to products containing batteries. Electrical structure: As follows: It consists of 3 terminals. Two fuses made of alloy metal are connected in series. In case of overcurrent or short circuit faults, they can melt and cut off the circuit to provide protection. The intermediate series heater is designed to form a series circuit with the MOSFET in the circuit. When the system detects that the battery is overvoltage, the MOSFET conducts, and the heater starts to heat up, thereby blowing the fuse and cutting off the circuit.

An ESD protection diode is a component that rapidly conducts to reduce impedance when high-voltage pulses caused by electrostatic discharge (ESD) and other factors enter the circuit, thereby protecting the IC. This article introduces the working principle of the most commonly used ESD protection diode in this application. At present, Internet of Things (IoT) devices, smart phones and other mobile devices are everywhere. With the frequent plugging and unplugging of USB, Lightning interfaces and other cables, these electronic devices are highly vulnerable to ESD shocks. Therefore, providing system-level ESD protection is more important than ever. ESD protection diodes are a well-known solution for electrostatic protection. The following introduces the working principle of ESD protection diodes.

What protection is the low-voltage fuse mainly used for, the fuse is a common component of the circuit, and the fuse has the same function. The application field of fuses is related to the type, and fuses can be divided into low voltage, high voltage, power, self-recovery, fast, photovoltaic and so on. Today, Xiaobian mainly introduces the application field of low-voltage fuses, please see the following.

Resistors are classified according to their volt ampere characteristics: for most conductors, their resistance remains almost constant at a certain temperature and remains at a certain value. This type of resistance is called linear resistance. The resistance of some materials varies significantly with the current, and their volt ampere characteristics are a curve. This type of resistance is called nonlinear resistance. The ratio of voltage to current of a nonlinear resistor under a given voltage is the static resistance at that operating point, and the slope on the V-A characteristic curve is the dynamic resistance.