Circuits Assembly Online Magazine - Current Issue

Products

EM4D-100L is a 2 mm square, 8-pin DFN package, 4-line low pass filter array with integrated TVS diodes. Designed to suppress unwanted EMI/RFI signals and provide ESD protection for high-speed data interfaces such as color LCD displays, camera imagers in mobile phones and PDAs.

With a desired cutoff frequency of 150 MHz, provides EMI/RFI attenuation better than 35 dB in the 800 MHz - 3GHz bandwidth. This blocks RF noises from GSM, DCS or Bluetooth, which affect the baseband chipset and other blocks. Meets the immunity test standard IEC 61000-4-2 at all levels, providing ESD protection.

In standby mode, integrated TVS filter has a very low leakage current (less than 100 µA) - an essential feature for battery powered handheld devices. In addition, the low profile durable 8-pin DFN package is useful in many applications.

ProTek Devices, www.protekdevices.com

For design engineers facing thermal cycling issues with power components in high-temperature environments, IRC has developed a "capped" version of its cylindrical power resistor that delivers thermal compliance and thermal isolation from circuit boards. The SMC Series Metal Glaze resistors are available in ratings up to 2 watts.

Designed to solve the problem of thermal mismatch between FR4 PC boards and ceramic components.

Applications include high power-density applications, such as underhood automotive control units, GFI control circuits, as well as any application where high thermal stress is present. Can be a potential cost saving replacement for bulky surface-mount wirewound devices.

Rated for 1 W at 70ºC, with resistance values from 0.1Ω to 1MΩ, in standard tolerances of ±1%, ±2% and ±5%, with TCRs as low as ±25ppm/ºC. SMC2 Series resistors are rated for 2W at 25ºC, with resistance values from 0..2Ω to 2.2MΩ, in standard tolerances of ±1%, ±2% and ±5%, with TCRs as low as ±25ppm/ºC. Operating temperature range is from -55° to +150°C. All are RoHS compliant and suitable for high-temperature soldering processes.

Feature a MetalGlaze thick film element fired at 1,000ºC to a solid ceramic substrate and a high temperature dielectric coating that is impervious to degradation in high-moisture environments.

IRC Wirewound and Film Technologies Division, www.irctt.com

KIC has expanded its library of solder paste process windows within the KIC 2000 software to 788. This number includes reflow and cure specs, as well as a host of new lead-free solder paste process windows.

The library is scheduled to be updated with new pastes every quarter, and is available for download to KIC 2000 platform users free of charge. With the addition of solder pastes to the library, the following dialog will be displayed on the Web site when a user clicks to download the file: "This release of the KIC 2000 Solder Paste Specs Library contains updated information for the following manufacturers: Almit, Avantec, Cobar, Indium, Kester, Koki, Loctite and Multicore." For paste manufacturers that are not listed above, KIC will attempt to provide updated information in the next release. If a solder paste is being used that is not listed in the Library, users can select the "Define Your Own Spec" option and manually enter the data that is given on the technical data sheet provided by that paste's manufacturer.

Each future update will contain the list of any manufacturer whose data has been changed/updated. This allows the user to know ahead of time whether they need download the file or not.

KIC, www.kic-thermal.com