
Allicdata Part #: | RER50F2R49RC02-ND |
Manufacturer Part#: |
RER50F2R49RC02 |
Price: | $ 21.87 |
Product Category: | Resistors |
Manufacturer: | Vishay Dale |
Short Description: | RES CHAS MNT 2.49 OHM 1% 20W |
More Detail: | 2.49 Ohms ±1% 20W Wirewound Chassis Mount Resistor |
DataSheet: | ![]() |
Quantity: | 1000 |
5 +: | $ 19.87470 |
10 +: | $ 17.47850 |
25 +: | $ 15.93210 |
50 +: | $ 15.11530 |
100 +: | $ 14.57080 |
250 +: | $ 13.88480 |
Operating Temperature: | -55°C ~ 250°C |
Failure Rate: | R (0.01%) |
Package / Case: | Axial, Box |
Lead Style: | Solder Lugs |
Height - Seated (Max): | 0.561" (14.25mm) |
Size / Dimension: | 1.062" L x 1.080" W (26.97mm x 27.43mm) |
Mounting Feature: | Flanges |
Coating, Housing Type: | Aluminum |
Features: | Military, Moisture Resistant, Non-Inductive |
Series: | Military, MIL-PRF-39009, RER50 |
Temperature Coefficient: | ±50ppm/°C |
Composition: | Wirewound |
Power (Watts): | 20W |
Tolerance: | ±1% |
Resistance: | 2.49 Ohms |
Part Status: | Active |
Packaging: | Bulk |
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Chassis Mount Resistors
RER50F2R49RC02 is classified as a Chassis Mount Resistor, which is a type of resistor that is designed to be mounted externally to a circuit board or chassis, instead of being inserted into a printed circuit board (PCB) like most other resistors. The main purpose of this type of resistor, is to provide a decoupling mechanism between the components on the circuit board and the external environment, hence creating a more robust design. The external resistor can therefore be used to resist changes in the environmental conditions such as vibration, temperature variation, humidity, etc, as well as in cases where the components on the circuit board need protection from the external environment.
Application Field
RER50F2R49RC02 chassis mount resistors can be used in a wide variety of applications, ranging from industrial electronics to consumer electrics. This type of resistor can be used in many different areas, such as automotive electronics, set-top boxes, audio/video and lighting products, and most types of electrical and electronic applications. It can also be used in the protection and control of electric power systems. In some cases, it can even be used to provide protection from the external environment in noise-sensitive applications.
Working Principle
The working principle behind the RER50F2R49RC02 is very simple. When the device is mounted onto the circuit board, it is connected to the power source. This then causes current to flow through the resistor, which in turn creates an opposing voltage across the resistor terminals. The result of this is that the voltage produced by the resistor will be opposite in polarity to the voltage produced by the power source. This opposition of voltage results in the desired resistive effect.
In other words, when a voltage is applied to the terminals of the resistor, a certain amount of current will flow through it, creating a momentary resistance that then dissipates back to its original value once the voltage is removed. This process allows the user to control the amount of current that flows through the resistor, and therefore the amount of resistance the resistor provides.
The RER50F2R49RC02 is designed to provide good reliability, safety, stability and high heat dissipation. It is available in a wide range of sizes, shapes and insulation materials, depending on the intended application.
The specific data is subject to PDF, and the above content is for reference
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