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5PCS Original authentic STC8H3K64S4-45I-LQFP32 STC8H1K16-36I-LQFP32 STC12C5620AD-35I-LQFP32 1T 8051 microprocessor chip
5PCS PN502 light-sensitive Diode 100% New Original Silicon Photodiode Silicon Photoelectric Triode
20pcs/lot HY860N transmissive photoelectric switch Groove-shaped slot photoelectric sensor, slot pitch 3.2mm