Modern electronics utilize current sense resistors for portable power management. As larger and more powerful devices become portable, higher currents and higher power ratings become critical, however, space for any portable electrical device must always be conserved. The HCSM2818 from Stackpole offers a 5-watt continuous power rating to maximize power handling in a given PCB […]
Resistors
SMT Kelvin shunt resistors provide accurate sub-milliohm current sensing
TT Electronics announced its LRMAP4026 series low resistance metal alloy power resistors designed for power supply, motor drive, and battery monitoring applications. This resistor series provides four-terminal Kelvin precision and high current capacity to all industrial applications, including automotive. Because four-terminal Kelvin connections improve precision, only a small portion of a design’s error budget is […]
How trimming affects thick-film resistor performance
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 […]
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 […]
high power density chip resistors save PCB space
TT Electronics announced the debut of its HPDC series high power density chip resistors. This specialist design is optimized for power management, actuator drive, and heating applications which benefit from the enhanced heat transfer from the element to the terminal. The use of such high power density components saves PCB area and boosts reliability by […]
Current-sensing foil-on-ceramic resistors sport 2 milliohm resistance
High efficiency in consumer electronics has become increasingly important. For portable electronics, this means lower resistance values on current sense resistors for battery and power management. Stackpole’s CSRF series is a foil on ceramic carrier chip resistor that is designed for these applications. The CSRF2512 is now available in resistance values down to 2 milliohms. […]
Thick-film shunt resistors feature 4-W rated power
ROHM Semiconductor introduced their new thick-film shunt resistors, LTR100L, optimized for industrial and consumer applications. Often used to detect current in battery protection and motor drive circuits, shunt resistors require higher accuracy to improve reliability and ensure high-efficiency operation. Recent years have seen an emphasis on energy savings in the industrial and consumer fields, with efforts being […]
Ultra-high power thick-film chip resistors offer PCB space savings
Today’s electronics devices push the envelope for smaller designs and greater functionality. Stackpole’s RMCP-UP is a high-power thick film chip resistor with very high power ratings for each case size, ranging from 0.2W rated 0402 sizes to 3W 2512 size. These elevated power ratings allow design engineers to use smaller chip resistors to free up […]
High-power chip resistors feature low thermal resistance
The WHPC0508X, WHPC0612X, and WHPC1020X extra-high-power resistors from TT Electronics are ideal for compact power supply and motion control applications, these resistors feature inverse geometry with the terminations on the long sides. This gives the new WHPC chip resistors very high thermal contact with the PCB and low thermal impedance. As a result, it is […]
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 […]