Rohm has created a set of six current sense amplifiers with AEC-Q100 qualification for automotive use. They work with external shunt resistors, and there are two basic types: one (BD1423xFVJ-C) that can sense across the common-mode range of -14 to +80V and runs from 2.7 to 18V, and the other (BD1422xG-C) that can sense across -14 to +40V and runs ...
Resistor
Explore the latest developments in resistor technology, including new precision resistors, power resistive components, and high-frequency resistors used in electronics design. Resistors are essential for ensuring the stability and performance of electronic circuits, and their applications range from consumer electronics and automotive systems to industrial and medical devices. Advancements in resistor materials and manufacturing techniques have resulted in higher accuracy, lower power consumption, and improved thermal management. As modern electronics require more complex systems, the role of resistors in signal integrity, voltage regulation, and current control remains critical across all industries.
Surface-mount wire-wound fuseable power resistors
Did you ever dream of surface-mounting wire-wound power resistors? If you do, Vishay has turned that into reality with a series of pick-and-place-friendly cemented wire-wounds. They are actually the company’s existing 3W AC03-CS series of fuseable resistors, with the legs bent into what the company is calling its WSZ lead-form (see photo), available from 1Ω to 100Ω ±5%, with ±200ppm/°C ...
1W current sensing resistors
Rhopoint Components is stocking precision current sensing resistors from VPG Foil Resistors. The 1W surface-mount RBF series measures 6.3 x 3.2mm and offers resistances between 0.01Ω and 1Ω. Tolerances down to 0.5% are available between 0.1 and 1Ω, or down to 1% from 10mΩ to 100mΩ. All the series are available with a temperature coefficient of ±25ppm/°C between -25 and ...
Ohmite power resistors available from Arrow
A worldwide distribution agreement means that Ohmite‘s power resistor range will be available through Arrow Electronics. Ohmite manufactures industrial and surface mount power resistors, load banks, heat sinks and rheostats in the US and Mexico. Its range includes high power, high voltage, current sense and surge resistors for use in transport, industrial, energy and aerospace sectors. In addition to standard ...
IP67 multi-turn trimmers measure 4x4mm
Vishay has introduced a series of multi-turn surface-mount cermet trimmer potentiometers for harsh environments. Sealed to IP67, TSM3 variable resistors operate across -65 to +150°C, and most can dissipate 125mW at +70°C. 17 resistance options from 10Ω to 2MΩ are available, with only the highest values rated at less than 125mW as the maximum dc voltage allowed is 200V: 500kΩ ...
Programmable resistors to put hardware-in-the-loop
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 ...
Precision shunts from 1A to 6,000A
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: ...
SMD resistors to AEC-Q200
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 ...
1mm glass resistors work from dc to 40GHz
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 ...
High-voltage resistors 100% screened for voltage coefficient
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 ...