Bidirectional Devices Combine High Power Dissipation and Pulse Current With High Temperature Reliability for Automotive, Telecom, and Industrial Applications
Vishay Intertechnology, Inc. (NYSE: VSH) today introduced three new series of 24 V surface-mount XClampRÔtransient voltage suppressors (TVS) that offer high peak pulse power dissipation equivalent to the 7 kW of conventional TVS at 10/1000 μsin the SMC (DO-214AB) package and 10/10 000 μs in the DO-218AB. The bidirectional devices deliver high power density over a wide operating temperature range of -55 °C to +175 °C for automotive, telecom, and industrial applications.
With a low clamping voltage of 24 V maximum, XMC7K24CAseries devices offer a higher peak pulse current (Ippm) of 180 A at 10/1000 μs — equivalent to the 7 kW power ratingof conventional TVS—in the SMC package. With a clamping voltage of 26 V maximum, the XLD5A24CAand XLD8A24CAseries offer Ippmof 120 A and 180 Aat 10/10 000 μs, which is equivalent to the 4.6 kW and 7 kW power ratingsof conventional TVS, respectively, in the DO‑218AB package.
Suitable for high reliability applications, the Vishay General Semiconductor TVS released today are available in AEC-Q101 qualified versions and offer extremely stable breakdown voltages from 26.7 V to 29.5 V over their entire operating temperature range. Designed to protect sensitive electronic equipment against voltage transients induced by inductive load switching and lightning, the TVS are intended for automotive load dump protection and signal line protection in industrial robot arms and telecom systems.
For applications with stand-off voltages greater than 24 V — such as 48 V belt starter (BSG) and integrated starter (ISG) generators in mild hybrid electric vehicles (HEV) —XLD5A24CA, XLD8A24CA, and XMC7K24CA series devices can be paired in series with a standard TVS. The devices are RoHS-compliant and halogen-free, and offer a moisture sensitivity level (MSL) of 1 in accordance with J-STD-020, LF maximum peak of 245 °C.
