Nisshinbo Micro Devices Inc. IC SUPERVISOR 1 CHANNEL SOT23-5 R3111N431C-TR-FE

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The R3111N431C-TR-FE is a high-speed photodiode, designed for fiber optic communication systems operating at 1310nm and 1550nm wavelengths. It features low capacitance, high sensitivity, and a compact package for easy integration into optical transceiver modules. The "TR" in the model number indicates that it includes a built-in monitor photodiode for power control, while the "FE" specifies that it has an enhanced responsivity for improved signal detection.