SMD 3920 Matel Element

Product Lines for E-Water Pump Controller

1.Metal Foil CSR

2.Metal type CSR(Shunt)

Advantage and Feature

- High Power and Low Ohmic

- Low TCR and Low EMF

- Current Sense

- Battery Management

- Power Supply

MCSS 3920 Series

Pulsed power Characteristics

Derating Curv

1.What is alloy resistance?

Alloy resistance is a kind of resistance using alloy as current medium, generally with low resistance, high precision, low temperature coefficient, impact current resistance, high power and so on. Alloy resistance due to the conductivity of the metal is strong, so the resistance value is generally low, such as 1,10,100, and so on. So often used in the circuit current sampling. A variable current used in a feedback circuit to further control or influence a change in current. Alloy resistors are mainly used in battery protection board, Power Supply, lamps, inverter, instrumentation, small appliances, new energy, smart home, power tools, switching power supply, BMS and other industries.

2.What are the characteristics of alloy resistance?

Stability good temperature coefficient small linearity high precision high temperature resistance, corrosion resistance, oxidation resistance.

3. The effect of alloy resistance?

Current-limiting and constant-current source sensor signal conditioning and conversion voltage divider thermosensitive equipment.

4.Temperature coefficient of alloy resistance?

Generally small, but the price is a bit more expensive than thick-film resistors because of the very low temperature coefficients of the block resistors, such as 5 ppm/° C, 10 ppm/° C, etc. . Therefore, in the case of high temperature coefficient and accuracy requirements, the general use of resistance of the film process, the use of thick film process of resistance can be. Resistance alloys and thin film resistors are widely used in precision resistors. The range of selected resistors is larger than that of winding resistors and foil resistors. When a resistor and another electronic device, such as a light bulb, are connected in series in the power supply circuit, the two DC voltages of the resistor and the two DC voltages of the light bulb are the same, the sum of the current flowing through the resistor and the bulb is equal to the total current flowing through the resistor and the bulb. At this point, this resistance acts as a shunt. From the point of view of temperature coefficient, the alloy resistance temperature coefficient is generally small, low resistance value, generally used in a variety of dashboards, medical machinery, switching power supply, electronic products, electronic devices and electronic products can often see their shadow.

5.The type of alloy resistance?

The common alloy resistors are carbon film alloy resistance, cement alloy resistance, metal film alloy resistance and wire wound alloy resistance Special alloy resistors include varistor, thermistor and photosensitive alloy resistors. The characteristic parameters of different types of alloy resistors are different, and the points need to be considered in the circuit are also different. It is possible for the engineers who design the new contact circuit to neglect some special parameters of the alloy resistance, so that the stability and reliability of the product can not be guaranteed. In order to ensure the high quality of the products, we must understand the parameters of the alloy resistance and the attention of the type selection, and understand the real function of the alloy resistance in the circuit.

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