EMID card IC card Introduction:
 
ID card, also known as radio frequency ID cards, in recent years developed a new technology. Now the market is a more passive use of only the ID card serial number, manufacturer in the factory prior to curing this serial number can not be changed. It works on the card is a ring coil, the coil connected resonant circuit IC components, the launch of its frequency and read the same frequency. Reader sends electromagnetic waves to make ID card resonant circuit to resonate and produce a current role in the ID chip, which is the ID card reader works.

Chip reliability

Non-contact ID card and no mechanical contact between the reader and avoid exposure to reading and writing to various fault. In addition, non-contact ID card no exposed surface of the chip, without fear of chip off, static electricity breakdown, bending, damage and other problems, both for card printing, but also improves the reliability of using the card.

Technical Specifications	EM 4100/4102 standard card	4001 Induction Card thickness
Chip	Swatch Group Em4102 Wafer	台湾4001 Wafer
Frequency	125KHZ	125KHZ
Sensing distance	2-20cm	2-20cm
Size	85.5x54x0.82mm	85.5x54x0.95mm
Sensing distance	PVC、ABS	PVC,ABS
Packaging process	Laminated packaging	Laminated packaging
Number	Even No. Coding	Even No. Coding
Typical applications	Time and attendance systems, access control systems,Business card system	Time and attendance systems, access control systems,Business card system

Meanwhile, in order to meet the needs of our customers, our company launched a new Φ20mm, Φ23 mm, Φ25 mm, Φ30 mm diameter coin-shaped low frequency proximity cards, chips can be built there: 4001,4102,5557, S50, S70 and other chips.