125 KHz contactless cards also are called Low frequency cards. They are Widely used with their low price and simple operation.
We provide a range of different 125KHz cards. EM4102 and TK4100(EM compatible) are very popular all round the world.
 
1. Magnetic stripes (300 oe, 2750 oe, 4000oe)
2. Offset or silk printing
3. Serial number printing (jet DOT printing, thermal printing, laser printing)

Dimensions: 85.6 X 54 X 0.84 mm
Weight per card: 7 gramm
Material: PVC laminated
Surface: Glossy or matt
DIN/ISO: 7816
Application temp.: -25º C to 50º C
Storage temp: -25º C to 50º C

Commonly used 125KHz contactless ICs:
-----125KHz
EM EM4100/EM4102/EM4200 (Read only)
EM EM4x50 (like EM4550, 4450 etc)
NXP Hitag1/hitag2/hitags
Atmel T5557/T5567/T5577