High speed PIN photodiode delivers precise signal detection

Vishay Intertechnology has broadened its optoelectronics portfolio with the introduction of a new high speed silicon PIN photodiode with enhanced sensitivity for visible light. Offered in a compact 5mm x 4mm top-view, surface-mount package with a low 0.9mm profile, the VEMD5080X01 offers fast switching times and low capacitance for precise signal detection in wearable devices and medical, industrial, and automotive applications. Offering a large radiant-sensitive area measuring 7.5mm² — and high radiant sensitivity with a reverse light current of 45µA and dark current of 0.2nA — the device released today detects visible and near infrared radiation over a wide sensitivity range from 350nm to 1100nm. For green LEDs, the VEMD5080X01's sensitivity represents a 30% improvement over previous-generation solutions. When used with the compnay’s VLMTG1400 green LED, the photodiode's small size and sensitivity enable slim sensor designs for optical heart rate detection in wearable devices such as fitness trackers and smart watches. When combined with their VSMD66694 660nm and 940nm dual color emitting diodes, the device is ideal for SpO2 measurement in medical monitors. In addition, it provides high speed photo detection in smoke detectors with dual-wavelength light sources and automotive dust and particle sensors in combination with a red diode. The device features a ±65 degree angle of half-sensitivity, a wide temperature range of -40C to +110C, and 950nm wavelength of peak sensitivity. The robust device is tested to AEC-Q101 standards for Automotive Grade semiconductors. RoHS-compliant, halogen-free, and Vishay Green, the photodiode provides a moisture sensitivity level (MSL) of four in accordance with J-STD-020 for a floor life of 72 hours. Wettable flanks allow for optical solder joint inspection.