Infineon Technologies announced a new family of transient voltage suppressor (TVS) diode arrays intended specifically to protect controller area network (CAN) automotive control networks and industrial bus systems from voltage spikes as high as 30 kV.
The new dual-channel bi-directional and uni-directional ESD24V diode arrays are available in the leading industry-standard SOT23 package. The CAN TVS diode arrays represent an expansion of Infineon’s industry-leading automotive semiconductor portfolio, and as such are ideally suited to use with the company’s solutions for powertrain, safety and comfort management systems.
An automotive CAN transceiver must be able to survive the high energy transients produced by such environmental events as load dump, inductive load switching, relay contact chatter and ignition system noise. The TVS diodes in the Infineon ESD24V arrays have a very fast turn-on time and limit the over-voltage to a safe value, absorbing the transient energy to prevent damage to the CAN transceiver and reducing the incidence of field failures.
Features of the ESD24V arrays, which have a maximum operating voltage of 24 V, include an ESD contact discharge rating of 30 kV per diode, a peak pulse current of 5 A, peak pulse power of 180 W and an extremely low reverse current of less than 10 nA. Their performance meets or exceeds the specifications of the IEC61000-4-2, IEC61000-4-4 and IEC61000-4-5 standards, and they are qualified according AEC Q101.
The ESD24V CAN TVS diode arrays are available now in both uni-directional and bi-directional two-channel configurations in a lead-free, RoHS-compliant 3 mm x 3 mm x 1 mm SOT23 package. In quantities of 10,000, the ESD24V modules are priced at $0.08.