Main specifications of em4100 / em4102 chip:
Working frequency: 125kHz
Sensing distance: 2-15cm
Size: ISO standard card / thick card / various special-shaped card
Packaging materials: PVC, ABS, petTypical applications: identification, attendance system, access control system, property identification, etcThe chip fully compatible with em4100 / em4102 is tk4100. The performance, purpose and use method of tk4100 chip are exactly the same as em4100 / em4102. However, since em4100 / em4102 is an original imported chip, there will be many additional charges such as taxes, so the price is relatively high. TK4100 is produced in Chinese mainland, with low production cost and strong competitiveness. Therefore, in more and more systems, TK4100 chips are used instead of EM4100/EM4102.
At present, em4100 and em4102 chips have been discontinued, and the upgrade chip is em4200.