TT Electronics, a global provider of engineered electronics for performance critical applications, launched the HA19 series of common mode chokes for use in electronic power steering (EPS) noise suppression applications. Every EPS system requires proper EMI (electromagnetic interference) control with a common mode choke (CMC) and/or a differential mode choke (DMC) serving this function. With the growing shift to EVs and PHEVs, and the accelerated incorporation of electronic components in automobiles, noise suppression has become increasingly important in order to ensure EMI compliance.
The HA19 series comprises three parts with standard inductance values, ranging from 11 µH to 75 µH, which have been demonstrated to be suited for reducing line-conducted inference in the circuitry. The devices offer high reliability and superior current handling from 26.5 A to 44 A (and even higher over-current withstanding) in a rugged construction. Their wide -40 to 125 °C operating temperature range and AEC-Q200 certification make them suited for high-stress automotive environments.
The HA19 common mode chokes are lead-free and comply with EU Directive 2011/65/EU (RoHS2) requirements.
TTE says that the HA19 series is a proven solution to eliminate noise emission induced by high radiated frequencies and low conducted frequencies in system circuitry, enabling EPS system designers to improve EMI robustness, ensuring safe vehicle operation.
The HA19 series is also suited for ECU and transmission control applications.