SRFxxxxA robust common mode chokes have high current capacity, says Bourns
Low profile common mode chokes, the SRF1206A and SRF9045A series, provide not only common mode but also differential mode filtering in a single choke configuration. The robust chokes offer high current capacity to answer the need for components that meet board space constraints in an increasing number of DC voltage domain applications with voltages up to 80V DC and currents up to 8A. According to Bourns, this makes the common mode chokes particularly suitable for DC/DC converters, switch mode power supplies, battery management and power line noise suppression in consumer, industrial and other electronics applications.
The SRF1206A and SRF9045A series are AEC-Q200 compliant with operating temperature ranges from -40 to +125 degrees C, and provide high impedance over a broad frequency range to suppress electromagnetic interference (EMI) either coming into or out of systems.
Both series of common mode chokes use separate sector-wound winding configurations, and feature U-shaped terminals clamped to core for superior strength to handle various mechanical stresses. They also feature a protective plastic shield that protects the part’s surface and wires and enables Hi-Pot capability of 500V AC at 3mA, one second. In addition to the normal common mode impedance expected for these components, the construction also features increased differential mode impedance at a high frequency range, Bourns confirms.
The SRF1206A and SRF9045A series are available now. They are RoHS-compliant and halogen free.
