The BS170 is an N−Channel enhancement mode field effect transistors are produced using ON Semiconductor proprietary, high cell density, DMOS technology.
The CA3140A and CA3140EZ are integrated circuit operational amplifiers that combine the advantages of high voltage PMOS transistors with high voltage bipolar transistors on a single monolithic chip.
This is a mini LCD Digital Thermometer for Fridge Freezer, Insert Size 46mm x 26.6mm, Cable Length 1m (Black or White Color) If you open the battery cover to put in two LR44 batteries correctly, pay attention to the polarity.