What it is
The ShillehTek 13.56MHz RFID Key Fob Tag IC S50 Token ISO14443A Access Control is a compact, passive NFC/RFID credential for access control workflows (gyms, apartments, elevators, cashless systems). It uses an S50-class IC with 1K memory organized into 16 encrypted sectors, and the sealed ABS fob is designed to be waterproof and shock-resistant for everyday carry.
Pins
This is a sealed RFID/NFC key fob (not a breakout board), so there are no user-accessible pins or pinout to wire to Arduino or Raspberry Pi. To use it, present the fob to a compatible 13.56MHz ISO14443A reader/NFC device; any electrical connections are made on the reader module side.
Technical Specifications
| Item | Details |
|---|---|
| Product type | Passive RFID/NFC key fob credential |
| RF frequency | 13.56MHz |
| Standard / protocol | ISO14443A |
| IC / family | S50 (as listed) |
| Memory capacity | 1K byte |
| Memory organization | 16 encrypted sectors |
| Housing | ABS, ultrasonic-welded and sealed |
| Durability | Waterproof and shock-resistant (per description) |
| Power | No battery required (passive) |
Frequently Asked Questions
Is this RFID key fob compatible with ISO14443A NFC readers?
Yes. This fob is described as a 13.56MHz ISO14443A credential, which is a common high-frequency standard supported by many access control readers and NFC-capable devices.
Can I connect this key fob directly to an Arduino or Raspberry Pi?
Not directly—there are no pins on the fob. To use it with Arduino or Raspberry Pi, you need a separate 13.56MHz ISO14443A RFID/NFC reader module connected to your board, then present the fob to the reader.
How much data can the S50 RFID fob store?
The listing describes 1K byte of memory organized into 16 encrypted sectors, which can help separate access data or small applications on one tag.
Is the ShillehTek RFID key fob waterproof for outdoor use?
It is described as an ultrasonic-welded, sealed ABS housing that is waterproof and shock-resistant, intended to protect the chip during daily carry and outdoor exposure.
Do I need a battery or maintenance for this NFC key fob token?
No. It is a passive 13.56MHz RFID/NFC fob, so it does not use a battery and typically requires no active maintenance—your reader provides the energy when scanned.