Non-Wirewound Resistors: Film, Foil & Metal Oxide

Posted by Tomáš Zedníček
On January 6, 2021
1

Introduction to Film Resistors Film resistors are built either on cylindrical rods or on planar substrates. Usually, the material in the rods and substrates is ceramic in the state of aluminum oxide (alumina), but glass may occur. Hollow cores exist but are more and more abandoned when sizes are becoming smaller. This design suffers also from drawbacks: the construction is more fragile and the heat dissipation is poorer than that of a solid core.

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Power Rating for RNCF0402 Precision Chip Resistors

Posted by doEEEt Media Group
On January 4, 2021
0

Stackpole extended their RNCF0402 size NiCr precision chip resistor, increasing the power rating to 0.1W for resistance values from 4.7 ohms to 255K for 0.1% tolerances and 25 ppm TCR. As electronics continue to downsize and add functionality, there is a consistent need for smaller and more precise chip resistors. If the application requires both small size and high power handling, then finding suitable precision resistors may be challenging.

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Rohm Releases Industry’s Highest Rated Power Shunt Resistors

Posted by doEEEt Media Group
On December 17, 2020
0

ROHM recently announced the availability of shunt resistors, GMR50 series, delivering industry-leading 4W rated power (at electrode temperature TK=90°C) in the compact 5.0mm×2.5mm (2010 type package) size. It is ideal for current detection in motors and power supply circuits used in automotive systems and industrial equipment.

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Surface Mount Resistor Selection Guide

Posted by doEEEt Media Group
On December 2, 2020
4

Surface mount chip resistors are ubiquitous. Hundreds of billions of these devices are sold every year into myriad applications from handheld devices to precision lab test equipment to aerospace electronics and others. Chip resistors and associated technologies are discussed from the standpoints of types, functionality, device design, and applications as well as circuit design and power rating considerations.

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High Temperature 175C Automotive Chip Resistors

Posted by doEEEt Media Group
On November 23, 2020
0

Panasonic has released new high-temperature thick film chip resistors in automotive-grade that include its series: ERJ H2G, H2C, H2R, H3G, H3E, H3Q H6G and HP6

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Bel Fuse Announces High-Temperature SMT Chip Resettable PPTC Fuses

Posted by doEEEt Media Group
On November 9, 2020
0

Bel’s 0ZT Series are small surface mountable, solid-state resettable fuses which feature a faster time to trip and lower resistance than standard SMD devices.

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Vishay Pulse Proof High Power Thick Film Chip Resistors

Posted by doEEEt Media Group
On November 4, 2020
0

Tech Specs Video

Vishay’s AEC-Q200 qualified CRCW-HP series combines high power dissipation and small case size in a single device. This is made possible by the double-sided design that uses two resistive layers in parallel within the device, enabling power dissipation up to 1.5W in a 2512 case size and allowing designers to increase design...

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Stackpole Reduces Resistance of its 0805 Current Sense Chip Resistor Down to 0.5 milliOhm

Posted by doEEEt Media Group
On October 26, 2020
0

High efficiency current sensing requires low resistance values to minimize wasted power. As applications downsize, engineers are challenged to find lower resistance values in small case sizes.

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Stackpole Improves Power Ratings for its Thick Film 1206 and 1210 Chip Resistors

Posted by doEEEt Media Group
On October 26, 2020
0

Stackpole’s RMCP series is a thick film technology providing higher power capability for a given chip size. Recently the power ratings for the RMCP1206 and RMCP1210 sizes have been improved to 0.5W and 0.66W respectively. This allows a single RMCP to be used in applications that may have required multiple chips of the same size.

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New Family of Anti-Sulphur, High Reliability Thin Film Chip Resistors

Posted by doEEEt Media Group
On October 26, 2020
0

TT’s APC Series meets the latest anti-sulphur standard, bringing precision and stability to today’s automotive, industrial and instrumentation applications. TT Electronics, a global provider of engineered electronics for performance critical applications, today announced the APC Series resistors, its family of high reliability surface mount resistors that have been qualified for use in environments exposed to sulphur-bearing gasses.

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