ADF32T Data & Signal Line Chokes EPCOS / TDK ADF32T Data and Signal Line Chokes offer a rated voltage of 42VAC and 80VDC and are qualified to AEC-Q200 standards. These chokes feature ferrite I-core construction with ferrite shielding and enamel copper wire winding welded to terminals. ADF32T chokes are suitable for lead-free soldering, as referenced in JEDEC J-STD 020E, and have a temperature range of up to +125°C. EPCOS / TDK ADF32T Data and Signal Line Chokes are suitable for automotive electronics and high-speed bus interfaces.