Vishay Intertechnology, Inc. (NYSE: VSH) has recently introduced a new line of 200V to 600V FRED Pt® ultra-fast recovery rectifiers, expanding its eSMP series in the SlimDPAK (TO-252AE) package. These devices are available in both automotive and commercial/industrial grades, offering improved performance and efficiency for a wide range of applications. Compared to traditional DPAK (TO-252AA) packages, these rectifiers are significantly thinner, with enhanced thermal management, higher power density, and better overall efficiency—ideal for use in automotive and communication systems.
The latest release is just 1.3mm in height, with a forward current rating of up to 10A for the 200V model and 15A for the 600V version. Despite having the same footprint as the DPAK package, it is 43% thinner, allowing for more compact designs. Additionally, the heat dissipation area is 14% larger, resulting in lower thermal resistance. The 15A rectifier can even replace the larger D2PAK (TO-263AB) package, making it a versatile choice for space-constrained applications.
These rectifiers utilize FRED Pt technology, delivering an ultra-fast recovery time of 14ns and minimal reverse recovery charge. This ensures soft switching across the full operating temperature range from -55°C to +175°C. At 4A, the forward voltage drop is only 0.71V, which helps reduce power loss and improve system efficiency. The devices are AEC-Q101 certified, meeting automotive-grade reliability standards.
Common applications include engine control units (ECUs), anti-lock braking systems (ABS), high-intensity discharge (HID) lighting, and DC/DC converters in LED systems. The commercial and industrial versions are also well-suited for communication power supplies and other demanding environments.
In terms of handling and processing, the rectifiers have a moisture sensitivity level of Class 1 according to J-STD-020, and they can withstand peak lead-free reflow temperatures of up to 260°C. They are RoHS-compliant and free from halogens, making them ideal for automated manufacturing processes such as surface mount technology (SMT) and automatic optical inspection (AOI).
Samples of the new ultra-fast recovery rectifiers are now available, with volume production expected to begin in September 2017. For major orders, the lead time is approximately eight to ten weeks. This product represents a significant advancement in power management solutions, especially for high-performance and compact electronic systems.
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