Ordinary thick-film resistors can display varying qualities depending on how the manufacturer elected to trim the device. It pays to know what to look out for. Kory Schroeder, Stackpole Electronics Inc. Surface-mount thick-film chip resistors are the predominant type of resistor in electronic circuits today. This technology is inexpensive; thick-film resistors are produced by screen-printing […]
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Four-terminal shunts provide precision current sensing
Low resistance values are important for high-efficiency current sensing because lower values mean less wasted power on the current sensing measurement itself. But sensing low resistance values accurately becomes challenging because of lead resistance errors. Using a four-terminal shunt resistor eliminates the detrimental effects of lead resistance on the current sensing measurement operation. The HCSK1216 provides […]
Thermal challenges with high-power resistors
Shrinking component sizes have complicated the task of ensuring temperatures stay below their allowable maximum. Kory Schroeder • Stackpole Electronics Inc. Electronic components of all types continue to shrink in size. In response, resistor manufacturers are devising resistors with higher power ratings but which come in commonly used sizes. Of course, when more power gets […]
Thin-film resistor comes in compact package
Stackpole Electronics’ CSRT2512-UP was developed to provide accurate, high-power current sensing for consumer and industrial electronic devices that exceed the capabilities of most 2512 case sizes available in the industry. The AEC-Q200 compliant CSRT2512-UP has unique thin-film material properties and processing to provide higher continuous power ratings and higher pulse power ratings than other thin […]
High-current, four-terminal shunt resistors now in 1216 and 4026 sizes
Low resistance values are important for high-efficiency current sensing in that lower values mean less wasted power on the current sensing measurement itself. But sensing low resistance values becomes challenging because of lead resistance. Using a four-terminal shunt resistor eliminates the detrimental effects of lead resistance on the current sensing measurement operation. Stackpole recently added […]
SMT precision thin film chip resistor series offers broad ranges of resistance values, sizes, tolerances, and TCR
The RNCF Series from Stackpole is a surface-mount precision thin film chip resistor series with one of the broadest ranges of resistance values, sizes, tolerances, and TCR’s in the industry. The RNCF Series has thousands of popular part numbers in stock including many values available in 0.01% resistance tolerance and 5 ppm TCR. This broad […]
Tantalum nitride precision chips offer robust humidity withstanding
The RTAN Series from Stackpole withstands biased humidity testing at 85 degree C, 85% relative humidity, 10% rated power with very little resistance shift. In addition, the RTAN anti-sulfur materials and design is such that it will pass the rigorous ANSI / EIA-977 (method A) standard sulfur test, with minimal resistance shift. This performance is […]
Foil-on-ceramic current-sense resistors offer values down To 2.5 mΩ
The CSRF Series utilizes foil-on-ceramic technology to achieve low values in small chip sizes. The 0.25-W rated CSRF0402 – HP, for example, is available in resistance values from 20 mΩ down to 2.5 mΩ. TCR ranges from ±400 ppm to ±200 ppm are possible depending on resistance value with tolerances as low as 1%. This […]
Multilayer varistors protect low-voltage electronics from high-voltage transient surges
Stackpole’s ZV Series of multilayer varistors protect low voltage electronics from high voltage transient surges. The ZV is available in sizes 0603, 0805, 1206, 1210, 1812, and 2220 in ac operating voltages from 2 V to 130V , dc operating voltages from 3 V to 170 V. The ZV offers bi-directional protection in accordance with […]
UL94V-0-compliant wirewounds offer wide range of power ratings and tolerances
The WW Series high temperature silicone coated wirewound resistors meet UL94V-0 flammability requirements. The all-welded WW is available in power ratings from 0.5 W up to 11 W and tolerances from 5% to 0.1%. Typical TCR for the WW series ranges from 90 ppm or better for resistance values below 1 Ω to 20 ppm […]
