100pcs/lot DS1990A-F5 iButton I-Button Electronic Key IB tag Cards Fobs Handle TM Cards

Specification:

. RW1990A-F5 read-write type of card, compatible ds1990a.

. TM card, also known as touch memory, electronic key

. Stainless steel package with su304#,

.rugged, never rust, corrosion; resistant to heat;

. Anti-variant; sealing strong;

. Communications, rail transportation, transportation, and so many fields

. Information button RW1990 memory 64, can be repeated rubbing, write the dry code

. Application Field:for security patrol, sauna door locks,electronic door locks,door intercom, card systems, identification, banking.

Technique Parameters:

. America DALLAS encryption

. Breakdown Rate:1/100,000

. Serial Number:Only global 64 bit numbers

. System Logic:64bits pin protection

. Memory:8kb RAM

. Inductive Type:touch

. R/W and encrypt

. R/W times:1,500,000,000

. Working Temperature:-40~85°

. Lifetime:>20years

. TM Dimension:φ16.25*5.89mm