The CSSH2512 from Stackpole is an all metal current sense chip resistor capable of precision tolerances as low as 0.5% and TCR as low as 15 ppm. The resistance range for the 3-W 2512 size chip has been expanded and now spans from 0.5 mΩ up to 80 mΩ. The high precision combined with the […]
Resistors
Keys to understanding resistor specs
The specification process for resistors involves more than just allowing for tolerance bands. Voltage, power, and temperature ratings can interact in ways that can degrade circuit reliability. Kory Schroeder, Stackpole Electronics, Inc. Although not a complex component, resistors have specifications that can be confusing, misleading, and misinterpreted. When specifying performance qualities, it is important to […]
Current-sense resistors designed for use in high-sulfur environments come in 0402 packages
KOA Speer Electronics has expanded its SR73-RT Series of Low Resistance Anti-Sulfuration Current Sense Resistors with a new 0402 Package size. The SR731E-RT will be available in ±1%, ±2%, and ±5% tolerances with resistance values from 1Ω up to 10 Ω, a power rating of 1/8 Watt and an operating temperature of -55°C to +155°C. […]
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 […]
Anti-surge chip resistors now come in 0402 size
The RPC Series from Stackpole is an anti-surge chip resistor with superior pulse handling performance compared to standard thick film chips. Stackpole has recently added an 0402 chip size rated at 0.2 W and featuring values from 1 Ω to 1 MΩ in tolerances as low as ±0.5% and TCR as low as ±100 ppm. […]
Current sense chips comes in 0603 and 0805 sizes
Ultra precision current-sensing chip resistors, the CSS Series, offer precision tolerances as tight as 0.5% and TCR as low as 15 ppm. Recently, Stackpole extended the value range for the 0603 size adding a 4 mΩ value and the 0805 size adding a 3 mΩ value. Lower resistance values allow the CSS to sense higher […]
Wide-terminal, low-Ohm high-power thick-film chip resistors deliver top-notch TCR qualities
ROHM announced the availability of a new lineup of high power wide terminal thick-film chip resistors (10-910mΩ), LTR50 series, ideal for current detection in a variety of applications, including inverters, AC, and energy-efficient appliances. A thorough review of the resistive material allowed ROHM to improve rated power to 2W in the compact 2550 size (2.5×5.0mm, […]
Power Electronics Top Talks in November on EDABoard.com forums
Peer-to-peer, engineer-to-engineer questions and answers from the EDABoard.com engineering community around power electronics. Click the “Read more” link and follow the entire conversation and maybe add your two cents by logging in to EDAboard.com Dell power supply – I got this PSU from one of my colleagues and did a quick inspection for the faults in […]
5-W surface-mount current sense shunt runs cool at high power levels
The HCSM2818 is a 5-W surface-mount current-sense shunt with excellent long-term stability and good TCR. The HCSM offers 4 and 5-mΩ values in 200-ppm TCR and 10, 15, and 20 mΩ values in 75-ppm TCR. The molded package and larger terminations provide exceptional thermal resistance and allows the part to run cooler at higher power […]
Lead-free high-voltage resistors future-proof medical and industrial designs
TT Electronics has launched the industry’s first fully lead(Pb)-free thick-film high-voltage chip resistors that allow manufacturers to future-proof medical and industrial equipment designs by eliminating reliance on RoHS exemptions. As environmental regulations become increasingly stringent, the new GHVC Green High-Voltage Chip resistors deliver peace of mind through exemption-free RoHS compliance. With their lead-free thick-film composition, containing […]
