WW1FT137R

Series:	WW
Packaging:	Tape & Reel (TR)
Part Status:	Active
Resistance:	137 Ohms
Tolerance:	±1%
Power (Watts):	1W
Composition:	Wirewound
Features:	Moisture Resistant
Temperature Coefficient:	±20ppm/°C
Operating Temperature:	-55°C ~ 350°C
Package / Case:	Axial
Supplier Device Package:	Axial
Size / Dimension:	0.110" Dia x 0.375" L (2.79mm x 9.53mm)
Height - Seated (Max):	--
Number of Terminations:	2
Failure Rate:	--

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Through-Hole Resistors

Through-hole resistors, also known as carbon film resistors, are electronic components commonly used in circuits for measuring current and controlling current flow. They are primarily used in circuits to limit the flow of current and to prevent the destruction of other components in the circuit. The resistance of the resistor limits the flow of current, which prevents excessive current from passing through the circuit and damaging neighboring components in the process. The WW1FT137R is a through-hole resistor, built using carbon film as the resistor material. Carbon Film technology utilizes a thin, uniform film of carbon, which is deposited onto an insulating material. This creates a specifically designed semiconductor, whose resistance values and the thermal coefficient of resistance are calibrated to match engineering specifications. At the same time, the electrolytic resistive coatings provide tight tolerance and good reliability under varying temperatures and current levels. The WW1FT137R is designed to have a resistance value of 1K ohms, and has a tolerance of 5%. The WW1FT137R is a power rating of 1/4 W with a minimum resistance temperature coefficient of 100ppm/°C. In terms of its physical properties, the WW1FT137R has a maximum operating temperature rating of 155°C and a maximum power dissipation rating of 0.25W. The primary application field for the WW1FT137R is power management – it is typically used to balance the current load in a circuit, or to prevent excessive current for passing into a circuit. Depending on its specific application, the WW1FT137R can be used as either a fixed value resistor or a variable resistor. As a fixed value resistor, the resistance value of the WW1FT137R remains constant over time, and it does not require any external electrical stimulation. On the other hand, as a variable resistor, the resistance value of the WW1FT137R can be modified by the device receiving its input. This input can either be from a diffused voltage source, or an external signal from an amplifier or some other source. In terms of its working principle, the WW1FT137R is designed to operate by creating a resistance barrier through the application of voltage across it. To achieve this, the resistance value of the digitized resistor must be higher than the output impedance of the source. As the voltage passes through the resistor, it creates a resistance, which would then effectively reduce the voltage level across the output side of the resistor, dependent on the amount of resistance introduced by the resistor. Moreover, the resistance value remains static, provided no external electrical stimulation is applied. In summary, the WW1FT137R is a through-hole resistor, primarily used in power management circuits and applications for controlling current and limiting the flow of current. It is calibrated for a resistance of 1K ohms with a 5% tolerance, and has a maximum operating temperature of 155°C and a maximum power dissipation of 0.25W. In terms of its working principle, the WW1FT137R operates by introducing a resistance to the flow of voltage, which in turn, reduces the voltage level across the output side of the resistor.

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