Leakage current for these both devices is below a maximum of 50nA. These low-leakage parts help manufacturers reduce the power consumption of their devices, which in turn lengthens the battery life. The parts are IEC rated to protect against electro static discharge (ESD), electrical fast transients (EFT) and cable discharge effects (CDE).
The small, single-line devices are optimal for designers that need to manage their capacitance budget. Ideal applications include GPS antenna, audio lines and FM antennas. The uClamp0511T is designed for -5V/+5V power lines and the uClamp1211T for -12V/+12V power lines. Both parts have a capacitance of 4pF with a very low clamping voltage.
The parts augment Semtech’s existing MICROClamp mobile protection platform, giving system designers a wide choice of circuit protection solutions for their designs
“The small size and single line protection of the uClamp0511T and uClamp1211T give designers the flexibility to design in protection even when faced with layout constraints,” said Rick Hansen, Semtech Marketing Director for Protection Products. “The low leakage of the parts is increasingly important to smartphone designs, which have a number of power-hungry processes running, so it’s important for every part in the design to contribute to extending battery life.