Based on surface emitter technology, the Vishay Semiconductors TSHF5211 combines an excellent -1.0 mV/K temperature coefficient of VF with higher radiant intensity and faster rise and fall times than previous-generation devices.
The emitter diode released today offers a high typical radiant intensity of 235 mW/sr at a 100 mA drive current, which is 50% higher than previous-generation solutions. With fast switching times of 15 ns, low typical forward voltage of 1.5 V, and a narrow ± 10° angle of half intensity, the device will serve as a high-intensity emitter for smoke detectors and industrial sensors. In these applications, the TSHF5211 offers good spectral matching with silicon photodetectors.
RoHS-compliant, halogen-free, and Vishay Green, the device is lead (Pb)-free and capable of lead (Pb)-free soldering up to 260°C.