Foster Transformer Unveils Three EMI Filters with Optional Surge Suppression



Foster Transformer now offers three models of EMI Filters with optional surge suppression that can be mounted with Ľ" quick connect terminals. This allows them to be mounted wherever needed (including directly in front of components generating excessive interference) to control EMI. This "at source" mounting allows multiple filters to be installed within a single piece of equipment. Fully encapsulated construction complies with EN 133200 and UL 1283, while a UL94 VO plastic enclosure increases protection against electrical shock. Leakage current is greatly reduced by eliminating the capacitor to earth ground connection - a common concern in medical devices and in areas where moisture is likely to be present. These RoHS compliant EMI Filters are ideal for filtering noise in fluorescent, HID and LED lighting ballasts, high frequency switch mode power supplies which are used in a wide range of industrial and medical applications, as well as appliances, motor control, , recreational vehicles and more (including retrofits). For full specs visit With models available for 100-120, 200-240, or 100-277 line voltages, these compact filters provide high levels of EMI suppression in a convenient, low-cost package (under $4 in lots of 1,000) Standard models incorporate 5.0 mH common mode inductors suitable for up to 6 amp service. Options available include bypass capacitors for increased differential mode noise rejection, and MOVs to protect against line transients. Custom configurations and multiple stage filters available by special order. Foster Transformer has been making electronic transformers, power supplies, and electromagnetic components for more than 70 years. Their corporate headquarters, Engineering Lab and primary manufacturing facility are located in Cincinnati, OH. The ability to manufacture their own tooling, fixtures and unique production machinery, allows Foster to provide quick turnaround, start-up and support low-to mid volume from the Cincinnati plant. Foster has additional manufacturing capacity available in China to support long run, high volume applications. For more information contact Foster Transformer, 3820 Colerain Avenue, Cincinnati, OH 45223, (800) 963-9799, or