L225J75RE

Operating Temperature:	-55°C ~ 350°C
Failure Rate:	--
Package / Case:	Radial, Tubular
Lead Style:	Solder Lugs
Height - Seated (Max):	--
Size / Dimension:	1.126" Dia x 10.500" L (28.60mm x 266.70mm)
Mounting Feature:	Brackets (not included)
Coating, Housing Type:	Vitreous Enamel Coated
Features:	Flame Retardant Coating, Safety
Series:	270
Temperature Coefficient:	±260ppm/°C
Composition:	Wirewound
Power (Watts):	225W
Tolerance:	±5%
Resistance:	75 Ohms
Part Status:	Active
Packaging:	Bulk

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Chassis Mount Resistors: L225J75RE application field and working principle

Chassis mount resistors are one of the most essential devices used in many electronic circuits. They are widely used in various industrial, commercial, and consumer applications. The L225J75RE is a Robust Pulse Resistor, a type of chassis mount resistor. In this article, we will discuss the application field and working principle of the L225J75RE.A Robust Pulse Resistor is a type of chassis mount resistor designed for extreme temperature applications where higher current and higher power surge is expected. It is constructed of a metal-oxide-film-resistor element which is sealed in an epoxy-resin case. The resistor element includes a pair of metal plates that are connected in series with each other, internally as well as externally. The temperature range of the L225J75RE is -60C to +125C and its rated power is 5W.The L225J75RE Robust Pulse Resistor is typically used in high-voltage DC applications, such as industrial motor drives, traction control systems, automotive ECUs, and UPS systems. It is also used in high-frequency AC applications, like inverters, AC drives, and UPS systems. It can be used to protect sensitive electronic components from voltage and current surges, and to prevent overheating.The working principle of the L225J75RE is quite simple. It acts as a shunt resistor between two terminals, allowing current to bypass through the resistor element to reduce the voltage and current across the device. The resistor is connected in series with a DC voltage source and an electric load. When the current flowing through the resistor increases, the voltage across the resistor increases as well. This causes the resistor to dissipate heat, thereby preventing the electric load from being overloaded.The L225J75RE is a high-precision, pulse-proof chassis mount resistor. The design is optimized to handle spikes up to a peak of 10X the maximum rated current and 23X the maximum rated power. Its features include low inductance, tight tolerance, low noise, and quick response times. Additionally, it is RoHS compliant and has a high flash-point durability.In conclusion, the L225J75RE Robust Pulse Resistor is a versatile chassis mount resistor designed to handle high-voltage DC and high-frequency AC applications. It is highly reliable, offers excellent thermal performance, and is capable of handling pulses up to 10X the maximum rated current and 23X the maximum rated power. Its working principle is simple and it is compliant with RoHS standards.

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