Understanding High-Precision Resistor Temperature Coefficient of Resistance

Posted by doEEEt Media Group
On June 23, 2023
0

Temperature coefficient of resistance (TCR) is the calculation of a relative change of resistance per degree of temperature change. It is measured in ppm/°C (1 ppm = 0.0001%) and is defined as: TCR = (R2– R1)/ R1 (T2– T1). For high-precision resistors, this specification is typically expressed in parts per million (ppm) per degrees Celsius, with reference to normal room temperature, typically +25°C.

EEE Components, PASSIVES

Resistivity, Thermal Resistance and TCR Temperature Coefficient

Posted by doEEEt Media Group
On June 22, 2023
0

This article introduces some key electrical resistor parameters such as resistivity, thermal resistance and TCR temperature coefficient.

EEE Components, PASSIVES

High-Temperature Applications Resistor Guidelines

Posted by doEEEt Media Group
On May 5, 2021
0

Resistors have traditionally been manufactured by a variety of methods and technologies, including metal and metal-oxide film, metal foil, carbon, wirewound, and thick-film methods. Each has specific characteristics that make them more or less suitable for high-temperature applications. Resistor degradation at a high temperature can vary from a small resistance change over time to a catastrophic change in resistance, exhibited by either becoming open circuit or, in some cases, a short circuit.

ABC of CLR, EEE Components, PASSIVES

Resistivity, Rth and TCR of Resistors

Posted by Tomáš Zedníček
On December 6, 2020
0

Depending on what units we express l and A in we get different units of r. A common way is by expressing l in m(eter) and A in mm2 r then gets the unit W´mm2/m. If we instead choose l in m and A in m2, the unit for r will be W´mm2/m, which usually is transformed to Wm. That unit often is used for non-metallic materials. If we know the value of r expressed in W´mm2/m, that value has to be multiplied by the factor 10-6 to give the value in Wm. Thus, 10-6 x W×mm2/m = 1 Wm.

EEE Components, PASSIVES

Boost Power Density with Automotive Current Sense Resistors

Posted by doEEEt Media Group
On October 26, 2020
0

Vishay Webinar

In this video, Vishay describes a portfolio of Automotive Grade current sense resistors and shunts that deliver a boost in power density for a range of applications in demanding environments.

By attending this webinar, you will learn about the Power Metal Strip® and Power Metal Plate™ technologies behind these products and the...

EEE Components, PASSIVES

Current Sense is easy?! Insight into the world of current sense resistors

Posted by doEEEt Media Group
On August 3, 2020
0

Würth Elektronik Webinar

Würth Elektronik eiSos is a supplier of current sense resistors. These are used to make the current in an application measurable so that the result can be processed in further electronic circuits.

We give an overview of the different possibilities how to measure the current and then we go into detail about...

EEE Components, PASSIVES

Understanding Temperature Coefficient of Resistance

Posted by doEEEt Media Group
On July 29, 2020
0

Temperature coefficient of resistance (TCR) is the calculation of a relative change of resistance per degree of temperature change. It is measured in ppm/°C

EEE Components, PASSIVES

TCR value in high-precision resistor selection

Posted by doEEEt Media Group
On July 29, 2020
0

Temperature coefficient of resistance (TCR) is the calculation of a relative change in resistance per degree of temperature change. It is measured in ppm/°C

EEE Components, PASSIVES

VPG foil options: DSCC drawing vs. EEE-INST-002 testing

Posted by Manuel Sánchez Ruiz
On January 27, 2020
0

VPG Foil Resistors offers for some of its series, three different manufacturing flow options: the standard, the DLA drawing and the EEE-INST-002