Industrial Factory Automation

AVX has developed a surface-mount crystal resonator that provides a nominal frequency of 32.768kHz in a ceramic package of 3.2 x 1.5mm and a profile of 0.8mm. Designated ST3215SB, the reflow-compatible tuning-fork crystal resonator has a frequency tolerance of +/-20ppm, a maximum ESR of 70k ohms and an operating temperature range of -40 to 85C. Suitable for consumer and mobile equipment applications, the ST3215SB resonators are Pb free and RoHS compliant. Standard capacitance ranges are 9 -12.5pF and low-capacitance versions, 7pF or less, are available on request.

Marktech Optoelectronics has introduced the MTPS4088MC surface-mount point-source light-emitting diode (LED). The MTPS4088MC is designed to deliver consistent performance in demanding environments where space constraints are an issue. The 880nm point-source LED features a 3.5 x 0.94 x 2.2mm package with a flat epoxy lens and a typical power output of 2.0mW. Developed primarily for optical-encoder, optical-switch, scanning and precision-edge sensing applications, this +/-10 point-source LED utilises an LED die configuration, which provides an unobstructed, radiated-beam pattern by masking the die and relocating the topside electrode. By eliminating the 'dark spot' typically associated with the centre of conventional LEDs, the point-source LED yields good results when used with application-specific optics to obtain the desired radiation pattern characteristics, according to the company. The device also offers a low thermal coefficient. In addition to its newest surface-mount pac...