Supply TK4001 Chip Wafer, TK4001 Chip COB

TK4001 chips compatible with Swiss EM microelectronics EM4102 chip, compatible with TK4100 chip.
TK4001 chips good quality, has dominated the market for many years. Has stable performance, read distance, defective rate is low, no weight code, etc.. As a semi-finished products, suitable for all kinds of special tags and the manufacture of smart ID card, wristbands, keychain,token.
TK4001 chips widely used in access control, idem, product identification and other RF intelligent identification fields.