MFR25SFTE52-30R9

Series:	MFR
Packaging:	Tape & Box (TB)
Part Status:	Active
Resistance:	30.9 Ohms
Tolerance:	±1%
Power (Watts):	0.25W, 1/4W
Composition:	Metal Film
Features:	--
Temperature Coefficient:	±50ppm/°C
Operating Temperature:	-55°C ~ 155°C
Package / Case:	Axial
Supplier Device Package:	Axial
Size / Dimension:	0.075" Dia x 0.134" L (1.90mm x 3.40mm)
Height - Seated (Max):	--
Number of Terminations:	2

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Introduction

A Through Hole Resistor, MFR25SFTE52-30R9 (MFRTFR-30R9) for short, is a type of discrete resistors used in the production of electrical and electronic components for both industrial and consumer applications. They are available in a wide range of sizes and shapes that vary in terms of maximum current, power dissipation ratings, temperature coefficient of resistance (TCR), voltage ratings, and other parameters. Let us now discuss the application fields of through hole resistors and their working principles.

Applications fields of through hole resistors

Through hole resistors are the most common type of resistors used in a variety of applications including power supplies, voltage regulation, high-frequency filter circuits, decoupling, and pulse-width modulation. In power supplies, these resistors are used to attenuate large fluctuations in voltage and to ensure the stability of the power supply loads. The output voltage of a power supply is established by reference to a given reference voltage while taking into account the variations of the circuit’s parameters. To achieve this result, resistors are used to establish a voltage divider circuit which allows for a regulated output voltage.These resistors can also be used as voltage regulators in circuits that need a stable voltage as their operating voltage. These include applications such as audio amplifiers, light-emitting diode (LED) circuits, telecommunications, and embedded systems. As the capacitance of the power supply decreases with increasing temperature, voltage regulators will adjust the output voltage to maintain a stable and consistent operating voltage.In high-frequency filter circuits, these resistors are used in conjunction with coupling capacitors to form a low-pass filter network. Filters in these networks are used to reduce the noise and ripple in power line voltages and current, thus improving the efficiency of the circuitry. They are also used as high-frequency damping elements in oscillator-style circuits to provide a stable output frequency.Decoupling resistors are also used in a variety of applications. They are used to absorb excessive voltage to prevent damage to the equipment. They are also used to ensure the voltage supply to sensitive and crucial circuits remain within design limits.They are also used to produce pulse-width modulation, a technique used in motor control, lighting, and various other applications.

Working principle of through hole resistors

Through hole resistors operate by allowing the passage of a current through a resistive material, and the resistance limits or restricts the amount of current that passes through. The resistive material determines the ohmic value (the resistance) of the resistor as well as its temperature coefficient and other operating characteristics.The current flowing through a resistor causes a voltage drop across it. The voltage across the resistor is known as the voltage drop, and is equal to the voltage applied across the resistor multiplied by the resistance.When voltage is applied to a series of resistors, the total voltage drop across the series will depend on the value and number of resistors in the series. As more resistors are connected in series, the total resistance increases and the total voltage drop across the series increases. The total current flowing through the series will depend not just on the total resistance, but also on the applied voltage. The current will decrease if the total resistance increases and the applied voltage is held constant.

Conclusion

Through hole resistors, such as MFRTFR-30R9, are used in a variety of applications and have many advantages over other types of resistors. The application fields range from high-frequency filter circuits to pulse-width modulation and voltage regulation. These resistors operate by allowing the passage of a current through a resistive material, and the resistance limits or restricts the amount of current that passes through.The current flowing through a resistor causes a voltage drop across it. The voltage applied to a series of resistors will determine the total voltage drop across the series. The total current flowing through the series is also affected by the total resistance and the applied voltage.

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