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 […]
Compact shunt resistors handle 4-W current detection tasks
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. This new series combines a revised electrode structure with optimized […]
Thick film resistors are metal-glazed for long-term stability
KOA Speer Electronics introduces the RS73F (25ppm/°C) and RS73G (50ppm/°C) ultra-precision metal glaze thick film chip resistors. These 0603 case size resistors will be offered in ±0.1%, 0.25%, and 0.5% tolerances with a T.C.R. as low as ±25ppm/°C and a resistance range from 100Ω to 1MΩ. The RS73 offers excellent long-term stability with its resistance changing by only […]
High-voltage chip resistors target automotive apps
KOA Speer Electronics introduces the HV73V high voltage flat chip resistor designed specifically for automotive applications. The HV73V features a special inner electrode material that makes the resistor suitable for high voltages. The new HV73V achieves maximum working voltages 2.5 times higher with improved temperature cycling stability compared to standard resistors. The HV73V is available in […]
Thick film chip resistors now boast higher power ratings
KOA Speer Electronics introduces new higher power ratings for its SG73P Series of anti-surge, pulse precision thick film chip resistors. The new power ratings by size are 0.2W (0402), 0.33W (0603), 0.5W (0805), 0.75W (1206), and 1.0W (1210). Precision SG73P resistors feature tolerances from ±0.5% to ±5%, T.C.R. of ±100 and ±200ppm/°C and resistance values ranging from […]
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 […]
Precision-resistor devices simplify thermal sensing
Riedon has introduced three new product lines leveraging its precision-resistor knowhow to simplify thermal sensing and monitoring, including miniature self-controlled heaters and resistance temperature detectors (RTDs). The PTC series of miniature heaters are positive-temperature-coefficient devices that stabilize quickly at 100°C-125°C depending on voltage and power rating. The PTC’s compact 9mm-high aluminum housing has a flat […]
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 […]
Metal-clad braking resistor targets industrial, commercial applications
Riedon announced an expansion to its extensive line of high-power wirewound resistors, with a new series of rugged metal-clad braking resistors that deliver high levels of performance and a reduction in the need for heatsinking. The devices target a range of industrial and other commercial applications including motor drives, power conversion systems, HVAC systems, and […]
High energy double-sided chip resistors handle up to 6.5 kV surges
TT Electronics announced high energy double-sided chip (HDSC) resistors, the latest addition to its range of pulse withstanding chip resistors. HDSC chip resistors are untrimmed for improved pulse performance – the only double-sided untrimmed chip resistors on the market – and are ideal for industrial and medical applications such as power supplies, circuit breakers, and […]
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