As one of the indispensable inner core component of low-frequency 125KHz proximity cards, TK4100 inlay has dominated the raw material market of hotel room key cards and other hotel key cards for decades. This article elaborates on some basic knowledge of TK4100 inlay and introduces reliable bulk supply solutions from our professional RFID manufacturer.

Basic Composition of TK4100 Inlay

TK4100 inlay is a pre-laminated intermediate core sheet integrating TK4100 smart chip and wound copper antenna of the chip. Operating at fixed 125KHz low frequency, it belongs to read-only LF RFID component fully compatible with classic EM4100 protocol. Sealed inside PVC or PET substrate, the core semi-finished material are ready for the next step RFID card lamination and printing. Card factories can directly laminate TK4100 inlay with printed PVC overlay sheets to produce finished cards. As for the data security, each chip carries exclusive 64-bit laser-programmed unique UID number, no duplicate ID worldwide for accurate identity verification. Custom pre-coded UID service is available for clients requiring pre-numbered card stock to save post-production encoding cost.

Core Functional Advantages of the TK4100 Inlay in Hotel Area

First, passive power-free design: the chip draws induction energy from RFID card readers’ electromagnetic field without built-in battery. So the cards can be carried by the hotel customers easily. Second, stable reading performance: standard reading distance hits 3cm–10cm matching most mainstream hotel door locks and access control card readers, supporting swiping access without physical contact. Nearly 70% of global mid-low and star hotel lock systems adopt 125KHz TK4100 proximity cards, relying on TK4100 inlay as core raw material for disposable or reusable room access cards. Third, outstanding environmental adaptability: PVC/PET packaging of the inlay effectively isolates moisture and dust. So the hotel key cards can work steadily at -20℃~+55℃, fits humid hotel guest rooms, outdoor building access gates and fluctuating-temperature property spaces. Fourth, cost-efficient raw material: compared with expensive HF chip inlay, TK4100 inlay features moderate unit price. For these reasons, TK4100 Inlay is becoming the most cost-effective option for mass-produced hotel key cards and ordinary access control ID cards.

Zhanfeng Smart Card Factory Advantage & Purchase Invitation of the TK4100 Inlay

As a professional China-origin RFID smart card & card inlay source manufacturer with self-owned production factory and 20-year industry manufacturing experience, Zhanfeng TK4100 inlay and finished RFID cards sell well all over the world.

In Zhanfeng factory, we strictly controls raw copper coil and original TK4100 chip sourcing. All our finished TK4100 inlay undergoes three rounds of reading performance testing before delivery to reduce card factory' s defective rate. Apart from the quality, we support fully customized service. We can customize big sheet size, inlay thickness, antenna layout, pre-UID encoding and PET/PVC substrate switching according to clients' actually card-making production line requirements. And we have flexible MOQ, supporting both small sample trial order and large-volume bulk wholesale with competitive factory-direct price cutting intermediate markup. For all global purchasers, card manufacturers and hotel procurement merchants browsing our official website, we provide FREE TK4100 inlay sample delivery service to test quality and adaptability with your production equipment or lock systems with zero procurement risk.

If you are sourcing stable TK4100 inlay supplier for long-term bulk purchase or hotel key card customization, please send inquiry to us. You can choose Zhanfeng as your trusted source supplier to secure stable high-quality inlay supply for your card production business.