HFCL3921M4W0R010F four-terminal current sensing resistor

{title} is a {keywords} product model of Walter. {keywords} is widely used and covers a variety of specifications and models. If you want to know more about {keywords}, you can follow us. The following is the parameter description of {title}. 39210.01Ω (10mR) 4W±1%±50PPM5000 is in production.

HFCL3921M4W0R010F

Product parameters

type	Four-Terminal Current Sense Resistor Current sensing resistor
size	3921
Resistance	0.01Ω(10mR)
power	4W
Accuracy	±1%
temperature coefficient	±50PPM
Minimum packaging quantity	5000 PCS
production status	in production

Product application

Laptop power management

In notebook computer power management, resistors are used for voltage division and signal conditioning. Through a combination of resistors with different resistance values, the power supply output voltage can be accurately adjusted to meet the needs of different hardware such as motherboards, graphics cards, and hard drives. In the power feedback circuit, resistors participate in building a voltage dividing network to feed back the output voltage change information to the power supply.

LCD TV backlight driver

In the LCD TV backlight drive circuit, resistors play a key role. The sampling resistor monitors the backlight current in real time, converts the current information into a voltage signal and feeds it back to the driver chip. The chip adjusts the output accordingly to achieve stable control of the backlight brightness. The voltage dividing resistor provides a suitable reference voltage for the drive circuit to ensure that the circuit

Smart watch heart rate monitoring

In the smart watch heart rate monitoring module, the resistor provides a stable working environment for the sensor. The bias resistor provides the appropriate bias voltage for the photoelectric sensor, so that the sensor can accurately detect changes in light intensity in the blood, thereby accurately calculating the heart rate. Resistors are also used in signal conditioning circuits to process weak signals output by sensors.

Smartphone charging circuit

In the mobile phone charging circuit, the resistor plays the role of current limiting and protection. After the charger converts alternating current into direct current, the resistor prevents excessive current from damaging the battery and circuit components. When an internal fault in the charger causes abnormal current, a suitable resistor can limit the current in time to avoid the fault from expanding and ensure charging safety.

Related content