LEDMED electrical components German LEDMED models LEDMED prices

LEDMED electrical components are surge absorbers/varistor assemblies. Due to their nonlinear resistance change with voltage, they exhibit symmetry in both directions (positive and negative). They respond to abnormal voltages on the line, absorbing most of the surge energy while suppressing the abnormal voltage to a safe range, thereby improving line safety and stability. In standby mode, the surge absorber (varistor) has very high impedance (several megohms) relative to the protected electronic components and does not affect the characteristics of the original circuit design. However, when an instantaneous surge voltage appears (exceeding the breakdown voltage of the surge absorber), the impedance of the surge absorber drops low (only a few ohms), causing a short circuit in the line, thus protecting electronic products or more expensive components.

LEDMED electrical component operating principle

The working principle of a discharge tube is gas gap discharge i When a certain voltage is applied between the two poles of the discharge tube, a non-uniform electric field is generated between the poles: under the action of this electric field, the gas inside the tube begins to ionize. When the external voltage increases to the point where the field strength between the poles exceeds the insulation strength of the gas, the gap between the two poles breaks down due to discharge, transforming from an insulating state to a conductive state. After conduction, the voltage between the two poles of the discharge tube is maintained at the residual voltage level determined by the discharge arc channel. This residual voltage is generally very low, thereby protecting electronic equipment connected in parallel with the discharge tube from overvoltage damage.

LEDMED electrical component characteristics

Under normal circumstances, the actual static characteristic output of a sensor is a curve rather than a straight line. In practical applications, to enable instruments to have uniformly scaled readings, a fitted straight line is often used to approximately represent the actual characteristic curve. Linearity (non-linear error) is a performance indicator of this degree of approximation. There are various methods for selecting the fitted straight line. For example, the theoretical straight line connecting the zero input and full-scale output points can be used as the fitted straight line; or the theoretical straight line that minimizes the sum of squared deviations from each point on the characteristic curve can be used as the fitted straight line, known as the least squares fitted straight line.

LEDMED electrical component classification

Classification based on the working principle or structural characteristics of relays: (1) Electromagnetic relay: An electrical relay that operates using the attractive force generated by the current in the input circuit between the electromagnet core and the armature. (2) Solid-state relay: A relay where electronic components perform its functions without mechanical moving parts, providing isolation between input and output. (3) Temperature relay: A relay that activates when the ambient temperature reaches a specified value. (4) Reed relay: A relay that uses reed contacts sealed in a tube, which act under the dual influence of contact springs and the armature magnetic circuit to open, close, or switch lines. (5) Time delay relay: A relay whose output section requires a delay or time limit to reach a specified time before closing or opening its controlled circuit when an input signal is applied or removed. (6) High-frequency relay: A relay used for switching high-frequency and RF lines with minimal loss. (7) Polarized relay: A relay that operates due to the combined effect of a polarizing magnetic field and the magnetic field generated by the control current passing through the control coil. The direction of relay operation depends on the direction of current flowing through the control coil. (8) Other types of relays: Such as optical relays, acoustic relays, thermal relays, instrument-type relays, Hall effect relays, differential relays, etc.

Weidou Intelligent Technology specializes in selling German LEDMED connectors, LEDMED switches, LEDMED relays, LEDMED controllers, LEDMED plugs, LEDMED sensors, LEDMED resistors, LEDMED capacitors, LEDMED buses, LEDMED modules, LEDMED cables, LEDMED power supplies, LEDMED interfaces, LEDMED gateways, LEDMED circuit breakers, all original imports from Germany. We welcome inquiries and orders from users.