ALSR0127R00JE12

Series:	ALSR
Packaging:	Bulk
Part Status:	Active
Resistance:	27 Ohms
Tolerance:	±5%
Power (Watts):	1W
Composition:	Wirewound
Features:	Moisture Resistant
Temperature Coefficient:	±30ppm/°C
Operating Temperature:	-65°C ~ 250°C
Package / Case:	Axial
Supplier Device Package:	Axial
Size / Dimension:	0.110" Dia x 0.406" L (2.79mm x 10.31mm)
Height - Seated (Max):	--
Number of Terminations:	2
Failure Rate:	--

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Through Hole Resistors

Through hole resistors are discrete components that feature two electrical connection points or “terminals” which are “through-hole” or “surface mountable”. Through hole resistors are typically leaded components meaning they come with some kind of lead that is connected to a body of the resistor. The leads are normally one or two pieces based on the type of resistor.Take ALSR0127R00JE12 for example, it is a general purpose, through hole resistor features an all-welded body consisting of an annealed resistance element and a molded sleeve of epoxy resin and is made with a ceramic terminal coat in a 4-pin configuration. This resistor is AEC-Q200 qualified, having a maximum surge power of 1 watt, and a maximum operating temperature of 105°C.The working principle of this through hole resistor is simple: when you pass an electric current through the resistor, some of that energy is lost as heat due to the resistance of the material composition. This energy loss is what is used to provide a known resistor value.In general, the resistors can be divided into two main categories: through hole resistors and surface mount resistors. While both are used to control the flow of electricity in the circuit, their structures are different. The main difference between these two types of resistors is how they are attached to the circuit board. A through hole resistor features two electric connections points: one on top of the circuit board, and one on the bottom. The leads are typically inserted into corresponding holes for mounting and soldering.On the other hand, the surface mount resistors feature only one electric connection point. They’re typically small components that are attached to the circuit board by the application of solder paste and a reflow process. Many times these components are glued to the board to ensure better stability.When it comes to the application, both types of resistors have their pros and cons. Through hole resistors are traditionally used in applications that are expected to have a long life as they are more reliable due to their through hole connection. Moreover, the large component size gives better heat dissipation. On top of that, they can be used in circuits with low or high current/voltage.On the other hand, surface mount resistors are often used in high-density applications such as mobile phones and laptops since their small size enables the circuit board to be densely populated with components. Moreover, they are less vulnerable to mechanical damage making them the go-to option for products that require repeatable performance.In conclusion, the ALSR0127R00JE12 is a through hole resistor that is suitable for general purpose and high power applications due to its AEC-Q200 qualification and robust structure. With its all-welded body and epoxy resin sleeve, the ALSR0127R00JE12 offers strength, stability and reliability. The resistor’s leads are inserted in holes and then soldered, providing a strong connection that is not affected by the heat produced during operation. The resistor’s ceramic terminal coat ensures high reliability, even in high temperature applications. Furthermore, the resistor is capable of operating across a wide range of temperatures and currents, making it a versatile and reliable choice for various projects.

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