Vishay increases range of surface mount rectifiers
Vishay Intertechnology has introduced 27 standard and Trench MOS Barrier Schottky (TMBS) surface-mount rectifiers in the low profile DFN33A package with wettable flanks.
The standard devices are the industry's first in this package size and provide current ratings up to 6 A, while the TMBS devices deliver industry-best current ratings up to 9 A.
The devices offer voltage options from 60 V to 200 V for TMBS and up to 600 V for standard rectifiers, and are suitable for commercial, industrial, and telecom applications. They are also available in Automotive Grade, AEC-Q101 qualified versions.
The latest package in Vishay's Power DFN family, the DFN33A features a compact 3.3 mm by 3.3 mm footprint and a low typical height of 0.88 mm. Compared to the conventional SMB (DO-214AA) and eSMP series SMPA (DO-220AA), the package's size is 44 percent and 20 percent smaller, respectively.
In addition, the device's low profile is 2.6x thinner than the SMB (DO-214AA) and SMC, and 7 percent thinner than the SMPA (DO-220AA). At the same time, the rectifiers' optimised copper mass design and advanced die placement technology allow for superior thermal performance that enables operation at higher current ratings.
The devices are intended for low voltage, high frequency inverters, DC/DC converters, freewheeling diodes, and polarity and rail to rail protection in hot swap circuits for baseband antennas and power over Ethernet (PoE) for switches, routers, and optical network equipment.
For these applications, the rectifiers offer high temperature operation up to +175 °C, while their exceptionally low forward voltage drop and low leakage current enhance design efficiency. The wettable flanks of their DFN33A package allow for automatic optical inspection (AOI), eliminating the need for an X-ray inspection.
