AVX Corporation has released the new WBR Series thin film wire bond resistors. Diced to small 0202 (0.02” x 0.02”) chip outlines with extremely tight dimensional tolerances (±0.003”), WBR Series top-contact, bottom-isolated resistors are ruggedly constructed, rated for up to 250mW DC power, and deliver ultra-stable, high-reliability performance in low-profile packages. The series also offers customizable […]
Resistors
Thin-film-on-ceramic high-density resistor networks designed for reliability
TT Electronics, a global provider of engineered electronics for performance critical applications, has launched the QSOP-C and SOIC-C high-density resistor networks that combine high precision with stability and reliability. By using a ceramic substrate and a relatively large feature size, they offer better cross-talk performance than types based on silicon substrates. With target markets in […]
Memristors, the fourth fundamental circuit element
Professor Leon Chua of the Electrical Engineering Department of UC Berkeley coined the term memristor while working on mathematical models in electrical engineering. He noted that resistors relate voltage to current (R=V/I), capacitors relate charge to voltage (C = Q/V), and inductors relate magnetic flux to current (L= Φ/I). What seemed to be missing was a […]
Digital potentiometer or digipot: applications and uses
A digital potentiometer (or “digipot”) operates like a traditional mechanical potentiometer (pot), which is a variable resistor, except the digipot is an integrated chip (IC) that accepts signal input rather than the physical movement of a shaft or slide for adjustment. Essentially, both types of potentiometer are analog devices that provide variable resistance. However, a […]
Chip resistor series expanded to include 2043 size part rated for 6 W
Stackpole’s popular CSRF Series of foil on ceramic carrier current sense chips have added a robust 2043 size part rated for 6 watts of power. The 2043 chip size has terminations on the longer edge of the chip which allows it to handle higher currents with lower thermal resistance and exceptional TCR of 50 ppm. […]
Top analog threads on EDAboard.com – December
(editor’s note: Intrigued by the problem? Have a question or another solution? Then click the “Read more” link and follow the conversation on EDAboard.com or log in to EDAboard and participate in the analog IC forum threads.) LM386 low noise (hiss) alternative? – I am building a direct conversion (regenerative) receiver that is followed by this […]
Miniature future for
passive electronic components
Jürgen Geier, Christian Kasper, Jochen Neller, Bert Weiss Rutronik Passive electronic components are getting smaller, but the are also providing better performance within the same form factor. Twenty years ago form factors such as 1812 and 1206 were widely used. Today’s most commonly specified sizes are 0603 and 0402. The range extends down to 01005 […]
Top analog threads on EDAboard.com – August
(editor’s note: Intrigued by the problem? Have a question or optional solution? Then click the “Read more” link and follow the conversation on EDAboard.com or log in to EDAboard and participate in the analog IC forum thread.) Noise figure vs 1-dB point of LNA – If the low noise amplifier (or power amplifier) operates in […]
SPDT PIN Diode Switches cover 10 MHz to 67 GHz range
Fairview Microwave Inc., a supplier of on-demand microwave and RF components, introduces a new line of Single Pole Double Throw (SPDT) PIN Diode Switches that offer exceptional reliability and repeatable performance in compact and rugged coaxial packages. They are commonly used in RF, microwave and millimeter-wave test systems associated with test and measurement, communications systems, […]
Precision chip resistors sport ±0.05% tolerances
TT Electronics has announced an extension to its WIN series range of precision chip resistors with improved tolerances and TCRs. The minimum ohmic value is now halved to 5 ohms, and a tolerance of ±0.05% and TCR of ±15ppm/°C is now included. In addition, WIN is now available with optional SnPb terminations, allowing its use […]