Main parameters of diodes
Maximum operating frequency FM: The frequency of the highest AC signal with unidirectional conductivity of a diode.
Silicon switch diode fully sealed ring epoxy resin ceramic chip package
Several aspects to consider when selecting a transistor
Use a multimeter to test. Using a pointer multimeter with a 10k Ω range can roughly determine the quality of the light-emitting diode
Due to the infrared light-emitting diode, it emits infrared light of 1-3 μ m
