{"product_id":"ibutton-ds1990a-f5-tm-card-pack-of-100-durable-read-only-keys","title":"Ibutton DS1990A-F5 TM Card Pack of 100 - Durable Read-only Keys","description":"\u003cp\u003eIn this review of the YARONGTECH Ibutton DS1990A-F5 pack, the bottom line is simple: this kit is for installers and facilities managers who need large quantities of reliable, read-only contact keys for access and control systems. The reviewer found the Ibutton devices exceptionally robust and easy to deploy; they require no onboard power and read in under 5ms, which makes them ideal where fast, passive identification is required. For projects that demand corrosion resistance and consistent serial IDs, this pack delivers predictable performance.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRead-only DS1990A-F5:\u003c\/strong\u003e Provides a unique 64-bit serial number that is stable and ideal for systems requiring fixed identifiers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFast read time:\u003c\/strong\u003e Can be read in less than 5ms, reducing wait time at points of entry and improving user flow.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable construction:\u003c\/strong\u003e High temperature resistant resin, stainless internal spring and gold-plated internal panels ensure longevity in harsh conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFully sealed:\u003c\/strong\u003e Rated for 100% watertight performance with vibration and electrical characteristics testing for reliable field use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo external power needed:\u003c\/strong\u003e Passive TM card design works with a powered collector, simplifying installation and reducing maintenance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThe Ibutton DS1990A-F5 pack is aimed at security integrators, building managers, and operators of access control, electronic locks, and patrol systems who need a bulk supply of identical, dependable read-only tokens. The pack size and the passive TM technology make it especially practical for large sites, clubs, or facilities with many users.\u003c\/p\u003e\n\u003cp\u003eIt is less suitable for projects that require writable credentials, advanced cryptographic authentication, or proximity-only passive cards; buyers needing those capabilities should consider programmable or secure smart card alternatives.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eVery durable materials resist rust, corrosion and high temperatures, suited for demanding environments.\u003c\/li\u003e\n\u003cli\u003eFast \u003cstrong\u003e5ms read time\u003c\/strong\u003e streamlines access where speed matters.\u003c\/li\u003e\n\u003cli\u003ePassive operation eliminates the need for batteries in the token itself and reduces maintenance.\u003c\/li\u003e\n\u003cli\u003eConsistent 64-bit serial numbers simplify system administration and device tracking.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRead-only design means it cannot be reprogrammed for changing access permissions or multi-factor uses.\u003c\/li\u003e\n\u003cli\u003eBulk pack may be excessive for very small installations or single-user needs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct\u003c\/td\u003e\n\u003ctd\u003eIbutton DS1990A-F5 TM Card\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQuantity\u003c\/td\u003e\n\u003ctd\u003ePack of 100\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSerial\u003c\/td\u003e\n\u003ctd\u003e64-bit unique ID, family code 01\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRead time\u003c\/td\u003e\n\u003ctd\u003eLess than 5ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003eHigh temperature resin, stainless steel spring, gold-plated internal panels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSealing\u003c\/td\u003e\n\u003ctd\u003e100% watertight, vibration and electrical tested\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower\u003c\/td\u003e\n\u003ctd\u003ePassive; requires powered collector\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe YARONGTECH Ibutton DS1990A-F5 pack offers rugged, reliable read-only tokens at volume for access control and locking systems. Installers and facility teams will appreciate the sealed construction, fast read time and consistent 64-bit IDs, making this a cost-effective choice for large deployments that do not require writable or cryptographically secure credentials.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eAre these Ibuttons waterproof?\u003c\/strong\u003e\u003cbr\u003eYes, the units are described as 100% watertight and have passed vibration and electrical characteristics testing for field use.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo the Ibuttons need batteries?\u003c\/strong\u003e\u003cbr\u003eNo, these are passive TM cards that draw power from the reader or collector and do not contain a battery.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan the serial number be changed?\u003c\/strong\u003e\u003cbr\u003eNo, the DS1990A-F5 units are read-only and provide a fixed 64-bit serial number and cannot be reprogrammed.\u003c\/p\u003e","brand":"YARONGTECH","offers":[{"title":"Default Title","offer_id":48262582173915,"sku":"B0169BKEYA","price":48.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/510Sa4zoWaL._AC_SL1000.jpg?v=1778331646","url":"https:\/\/gearmusthave.com\/products\/ibutton-ds1990a-f5-tm-card-pack-of-100-durable-read-only-keys","provider":"GearMustHave","version":"1.0","type":"link"}