Pickering Interfaces, has announced a family of one-slot PXI and PXIe programmable resistor modules that can handle 2A, 200V or 15W. Models 40-254 (PXI) and 42-254 (PXIe) come in 28 variants, summarised as: two channel versions with various narrow resistance ranges, and then single channel versions with various narrow, medium or wide resistance ranges. PXI vVersions are compatible with PXI ...
Bourns has added six shunt resistor types its Riedon range, that it acquired in April last year when it bought Riedon Inc. Construction is with brass end-caps holding Manganin resistance elements. The latter has a temperature coefficient ~±15ppm/°C. Kelvin contacts are provided for the voltage output. Panel-mount RS resistors have values from 41.7μΩ to 20mΩ (±0.25%). There are sub-versions here: ...
Bourns has created a surface-mount thin-film resistor series with AEC-Q200 compliance for automotive use. Model CRT-A resistors are available with tolerance of ±0.1, ±0.25, ±0.5 or ±1%, and temperature coefficients of ±50, ±25, ±15 or ±10ppm/°C. These compact, yet high power-rated resistors offering accurate resistance levels are increasingly required in space-constrained applications such as mobile phones, SD cards, DDR memory ...
Richardson RFPD is stocking 0402 (1005 metric) glass sandwich resistors designed to work from dc to 40GHz. Made by Kyocera AVX, and called the UBR series, they measure 1 x 0.5 x 0.5mm and have a flexible termination. “‘Flexiterm’ is a surface-mountable, automotive-qualified termination that adds an extra margin of protection against damage due to flexure during installation,” according to ...
Stackpole is aiming at accurate high-voltage measurement with a family of resistors that are 100% tested for voltage-induced resistance variation. Called ‘HVCR’, the family incudes resistors between 10 and 100MΩ, specified to have a voltage coefficient of resistance better than -5ppm/V for the 1206 size and -2ppm/V for the 2512 size. “Applications such as testing equipment, instrumentation, high voltage inverters, battery ...
A new selection of materials has allowed Rohm to add 5W rated current sensing resistors to its 2512 sized (6432 metric) PMR100 series of metal plate shunts, formerly rated at either 2 or 3W only. They are available in 0.5, 1 and 1.5mΩ. “Adopting a proprietary trimless structure suppresses the rise in temperature caused by localised current concentration. This allows ...
Sciospec LCR-1 is a PC-based single-channel LCR meter that offers 2-, 3- and 4-port measurements across 100mHz to 500kHz, with 1mΩ – 1TΩ, 10fF – 1kF and 1nH – 1TH capability. Options include upper frequency expansion to 1 or 10MHz, and it comes with PC-based software for automated measurements and analysis, which displays up to four parameters at the same ...
Stackpole is offering 0.01% 2ppm/°C precision surface-mount resistors in sizes from 0402 to 2512 (1 x 0.5mm to 6.3 x 3.1mm). Part of its RNCF range, these highest spec parts don’t come in the wide value range of lesser RNCF resistors. For example: 0402 types are available between 49.9Ω and 4.99kΩ, then 2512 has the widest span of options, between ...
Stackpole’s RNCU 1206 thin film chip resistors can handle up to 1W and offer tolerances down to 0.1% and temperature coefficients down to 10ppm/°C. The AEC compliant parts have “excellent electrical and environmental stability, showing minimal resistance shifts over most industry standard tests and are anti-sulphur per ASTM-B-809-95 with shifts less than 1%”, according to the company. They are also ...
RC oscillators can be small or accurate, and now that can be both after Delft University of Technology*, Silicon Integrated and Tsinghua University revealed a 10MHz RC oscillator with ±0.28% accuracy over -45 to 125°V after a one-point trim, fabricated with a 0.01mm2 footprint in standard 0.18μm CMOS. The scheme avoids needing the need for resistors with opposing temperature coefficients, ...
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