ABBEJF electrical components Germany ABBEJF model ABBEJF price

ABBEJF electrical component is a current-limiting element. After connecting the resistor in the circuit, the resistance value is fixed, generally with two pins, and it can limit the magnitude of the current passing through the branch to which it is connected. A resistor whose resistance value cannot be changed is called a fixed resistor. A resistor whose resistance value can be changed is called a potentiometer or variable resistor. An ideal resistor is linear, meaning the instantaneous current through the resistor is proportional to the applied instantaneous voltage. Variable resistors used for voltage division. On the bare resistive body, one or two movable metal contacts are tightly pressed. The contact position determines the resistance between either end of the resistive body and the contact. There is a definite functional relationship between terminal voltage and current; it is a two-terminal device that reflects the ability to convert electrical energy into other forms, represented by the letter R, with the unit Ohm Ω. Actual devices such as light bulbs, heating wires, and resistors can all be represented as resistor elements. The resistance value of a resistive element is generally related to temperature, material, length, and cross-sectional area. The physical quantity measuring the extent to which resistance is affected by temperature is the temperature coefficient, defined as the percentage change in resistance value when the temperature rises by 1 ℃. The main physical characteristic of a resistor is converting electrical energy into thermal energy; it can also be said to be a dissipative element, generating internal energy when current passes through it. Resistors usually play the role of voltage division and current shunting in circuits. For signals, both AC and DC signals can pass through resistors.

ABBEJF electrical component principle

When the voltage applied to the varistor is lower than its threshold, the current flowing through it is extremely small, equivalent to a resistor with infinite resistance. That is to say, when the voltage applied to it is lower than its threshold, it is equivalent to a switch in an open state. When the voltage applied to the varistor exceeds its threshold, the current flowing through it surges, equivalent to a resistor with infinitesimal resistance. That is to say, when the voltage applied to it is higher than its threshold, it is equivalent to a switch in a closed state. Protection principle of surge absorbers: In the standby state, the varistor has very high impedance (several megaohms) relative to the protected electronic components and does not affect the characteristics of the original design circuit. However, when an instantaneous surge voltage appears (exceeding the breakdown voltage of the surge absorber), the impedance of the surge absorber becomes low (only a few ohms) and causes a short circuit in the line, thereby protecting electronic products or more expensive components.

ABBEJF electrical component function

Functions of capacitors: 1. Capacitors used in coupling circuits are called coupling capacitors. This type of capacitor circuit is widely used in RC-coupled amplifiers and other capacitor-coupled circuits, serving to block DC and pass AC. 2. Capacitors used in filtering circuits are called filter capacitors. This type of capacitor circuit is used in power supply filtering and various filter circuits; filter capacitors remove signals within a certain frequency band from the total signal. 2. Capacitors used in decoupling circuits are called decoupling capacitors. This type of capacitor circuit is used in the DC voltage supply circuits of multi-stage amplifiers; decoupling capacitors eliminate harmful low-frequency coupling between amplifier stages. 3. Capacitors used in high-frequency oscillation suppression circuits are called high-frequency suppression capacitors. In audio negative feedback amplifiers, this type of capacitor circuit is adopted to eliminate possible high-frequency self-excitation, thereby eliminating possible high-frequency whistling in the amplifier. 4. Capacitors used in LC resonant circuits are called resonant capacitors. This type of capacitor circuit is required in both LC parallel and series resonant circuits. 5. Capacitors used in bypass circuits are called bypass capacitors. If a signal in a certain frequency band needs to be removed from the signal in the circuit, a bypass capacitor circuit can be used. Depending on the frequency of the signal to be removed, there are full-frequency domain (all AC signals) bypass capacitor circuits and high-frequency bypass capacitor circuits. 6. Capacitors used in neutralization circuits are called neutralization capacitors. This type of neutralization capacitor circuit is adopted in radio high-frequency and intermediate-frequency amplifiers, as well as TV high-frequency amplifiers, to eliminate self-excitation. 7. Capacitors used in timing circuits are called timing capacitors. Timing capacitor circuits are used in circuits that require time control through capacitor charging and discharging; the capacitor plays the role of controlling the magnitude of the time constant. 8. Capacitors used in integration circuits are called integrating capacitors. This type of integrating capacitor circuit is adopted in the synchronization separation circuit for potential field scanning, allowing the field synchronization signal to be extracted from the field composite synchronization signal. 9. Capacitors used in differentiation circuits are called differentiating capacitors. This type of differentiating capacitor circuit is adopted in trigger circuits to obtain peaked trigger signals, thereby obtaining peaked pulse trigger signals from various (mainly rectangular pulse) signals. 10. Capacitors used in compensation circuits are called compensation capacitors. This type of low-frequency compensation capacitor circuit is used in the bass compensation circuit of cassette decks to enhance low-frequency signals in the playback signal; additionally, there are high-frequency compensation capacitor circuits. 11. Capacitors used in bootstrap circuits are called bootstrap capacitors. Commonly used OTL power amplifier output stage circuits adopt this bootstrap capacitor circuit to slightly increase the amplitude of the positive half-cycle of the signal through positive feedback. 12. Capacitors used in crossover circuits are called crossover capacitors. Crossover capacitor circuits are used in the speaker crossover circuits of loudspeakers, enabling high-frequency speakers to operate in the high-frequency band, mid-frequency speakers in the mid-frequency band, and low-frequency speakers in the low-frequency band. 13. Refers to the effective external capacitance that, together with the quartz crystal resonator, determines the load resonant frequency. Common standard values for load capacitance include 16pF, 20pF, 30pF, 50pF, and 102pF. Load capacitance can be appropriately adjusted according to specific conditions; through adjustment, the operating frequency of the resonator can generally be tuned to the nominal value.

ABBEJF electrical component characteristics

Resolution refers to the ability of a sensor to detect the smallest change in the measured quantity. That is to say, if the input quantity changes slowly from a non-zero value. When the input change value does not exceed a certain value, the output of the sensor will not change, meaning the sensor cannot distinguish this change in the input quantity. Only when the change in the input quantity exceeds the resolution will its output change. Usually, the resolution at each point within the full-scale range of a sensor is not the same; therefore, the maximum change value in the input quantity that causes a step change in the output quantity within the full scale is commonly used as the indicator for measuring resolution. If the above indicator is expressed as a percentage of the full scale, it is called resolution. Resolution has a negative correlation with the stability of the sensor.

Weidou Intelligent Technology specializes in selling German ABBEJF connectors, ABBEJF switches, ABBEJF relays, ABBEJF controllers, ABBEJF plugs, ABBEJF sensors, ABBEJF resistors, ABBEJF capacitors, ABBEJF buses, ABBEJF modules, ABBEJF cables, ABBEJF power supplies, ABBEJF interfaces, ABBEJF gateways, ABBEJF circuit breakers, ABBEJF original imports from Germany. Welcome customers to inquire and order.