Vishay upgrades TFBS4xx and TFDU4xx Series IR transceiver modules

14th March 2024
Paige West

Vishay Intertechnology, Inc. has enhanced its TFBS4xx and TFDU4xx series of infrared (IR) transceiver modules, designed for IrDA applications, with significant improvements.

These upgrades include a 20% extension in link distance and an increase in ESD robustness up to 2kV, catering to a variety of wireless communication and data transmission needs in sectors such as energy management, industrial automation, mobile communication, and healthcare. The modules now support data transmission speeds up to 115.2kbit/s (SIR) over distances up to 1 metre, making them suitable for a broad range of applications.

To facilitate longer operational periods in battery-powered devices, the enhanced modules boast reduced power consumption, with an idle supply current of less than 70 μA and less than 1 μA in shutdown mode.

The components of the Vishay Semiconductors TFBS4xxx and TFDU4xxx series include a PIN photodiode, an infrared emitter (IRED), and a low-power control IC, all integrated into a single package. Thanks to Vishay's advancements in IC and surface emitter chip technology, the company ensures the continued availability of these IRDC products for its customers. Furthermore, these upgraded modules are designed as drop-in replacements for previous devices, providing cost savings by negating the need for PCB redesigns.

Fully compliant with the latest IrDA physical layer specification, the TFBS4xxx and TFDU4xxx series devices offer backward compatibility and come in both top- and side-view surface-mount packages, providing straightforward, plug-and-play replacements for existing models in the series.

The devices are RoHS-compliant, halogen-free, and adhere to Vishay's Green standards. They are available in several package sizes and operate within a voltage range of 2.4 to 5.5V and a temperature range of -25 to +85°C, ensuring flexibility and reliability across different applications and environments.

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