Glenrothes, Scotland: TT electronics BI Technologies Magnetic Components Division has developed a series of surface mount common mode chokes that provide automotive design engineers with a compact noise-dampening device designed to filter signals for CAN-BUS applications. Designated the HM67 Series, the devices have been approved for use by major automakers in their vehicles bus and communication systems. The HM67 family is available in two sizes to fit the needs of automotive designers who are running short of space and still need to filter their CAN-BUS networks. As bussed communication devices become more prevalent in automotive design, these space saving products will become even more critical to the design engineer. The four-terminal HM67 Series chokes feature common-mode inductance values from 5.0 mH to 4700 mH (at 100 kHz; 0.1 V), with inductance leakage from 0.08 mH to 2.80 mH. Rated current for the devices ranges from 200 mA to 1000 mA, with DC resistance values ranging from 5.8 mW to 403 mW. Dielectric withstanding voltage is 300 V DC.
Operating temperature range for the HM67 Series chokes is -40 °C to +125 °C, with a maximum temperature rise rating of 40 °C and a maximum ambient temperature of 85 °C. The common mode chokes are available in standard embossed tape and reel packaging. Available in 400- and 2000-unit capacity, a lead-free version is also obtainable for applications requiring RoHS compliance.
TT electronics BI Technologies Ltd, Glenrothes, Scotland. www.bitechnologies.com