Vishay General Semiconductor - Diodes Division

Surface-Mount Standard and TMBS Rectifiers

Vishay rectifiers deliver current ratings to 9 A and superior thermal performance in the space-saving DFN33A package

Image of Vishay Semi Diodes Surface-Mount Standard and TMBS® RectifiersVishay offers 27 standard and trench MOS barrier Schottky (TMBS®) surface-mount rectifiers in a low-profile DFN33A package with wettable flanks. Providing space-saving, high-efficiency solutions for commercial, industrial, telecom, and automotive applications, the standard devices provide current ratings up to 6 A, while the TMBS devices deliver current ratings up to 9 A. Compared to the conventional SMB (DO-214AA) and eSMP® series SMPA (DO-220AA), the DFN33A package is 44% and 20% smaller, respectively. The devices’ low profile is 2.6 times thinner than the SMB (DO-214AA) and SMC and 7% thinner than the SMPA (DO-220AA). The rectifiers’ optimized copper mass design and advanced die placement technology allow for superior thermal performance that enables operation at higher current ratings.

Features
  • High current ratings up to:
    • 6 A for standard rectifiers
    • 9 A for TMBS rectifiers
  • Offered in 3.3 mm by 3.3 mm DFN33A package with extremely low typical height of 0.88 mm
    • More efficient use of PCB space
    • Wettable flanks allow for automatic optical inspection (AOI), eliminating the need for an X-ray inspection
  • Wide range of voltage options from 60 V to 200 V for TMBS and up to 600 V for standard rectifiers
  • High-temperature operation up to +175°C
  • Exceptionally low forward voltage drop and low leakage current enhance design efficiency
  • Ideal for automated placement
  • MSL moisture sensitivity level of 1, per J-STD-020, LF maximum peak of +260°C
  • RoHS-compliant and halogen-free
  • Matte tin-plated leads meet the JESD 201 class 2 whisker test
  • Available in automotive-grade, AEC-Q101-qualified versions
Applications
  • Low-voltage, high-frequency inverters
  • DC/DC converters
  • Freewheeling diodes
  • Polarity and rail-to-rail protection in hot-swap circuits for:
    • Baseband antennas
    • Power-over-Ethernet (PoE) for switches, routers, and optical network equipment
Published: 2025-04-17

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