OEM S-WB4D RFID ID Wristband 125kHz Silicone

S-WB4D ID Wristband

The OEM S-WB4D ID Wristband provides a wearable solution for proximity access control systems. This device integrates a passive RFID transponder within a durable silicone housing. Engineers specify this model for environments requiring hands-free identification. The unit operates on standard low-frequency protocols to ensure compatibility with existing reader infrastructure. The silicone enclosure uses an overmolding process to encapsulate the internal electronics. This technique creates a seamless barrier against moisture and environmental contaminants. The 125kHz frequency utilizes magnetic induction to power the internal integrated circuit. When the band enters a reader’s magnetic field, the coil generates a small current. This current allows the chip to broadcast its unique identification number. This passive technology ensures a functional lifespan of over ten years without battery maintenance.

The internal TK4100 CMOS integrated circuit contains a 64-bit read-only memory. This memory stores a unique laser-programmed code for secure database matching. The chip utilizes an on-chip frequency limiter and full-wave rectifier to stabilize harvested voltage. The modulation scheme employs Manchester coding at a specific rate to ensure high data reliability. The antenna consists of high-purity copper windings calibrated to a precise inductance value. This value matches the internal capacitance of the IC to form a resonant LC circuit. The resulting high Q-factor enables consistent read ranges even through non-metallic barriers. The silicone material exhibits a Shore A hardness rating of approximately 60. This balance provides rigidity to protect the internal components while remaining flexible for the user.

The material possesses high thermal stability across a broad range. It does not become brittle at sub-zero temperatures. It does not lose shape in high-heat industrial zones. Hypoallergenic properties of the medical-grade silicone prevent dermatological issues during long deployment cycles. The closed-loop design eliminates mechanical failure points like buckles or clasps. This design choice increases the overall mean time between failure for credential fleets. Network engineers integrate these wearable tags into existing physical security logic using standard Wiegand protocols. The 125kHz signal penetrates organic tissue more effectively than higher-frequency alternatives. This characteristic makes the device reliable regardless of wrist orientation relative to the reader hardware.

Key Features

• Integrated TK4100 Chipset
  The 125kHz passive transponder provides a unique 64-bit identification number for secure system authentication.

• Environmental Protection

  • IP68 waterproof rating for full submersion.
  • Dust-tight seal protects internal copper coil.
  • UV resistance prevents material degradation in sunlight.

• Durable Silicone Construction
  High-grade medical silicone resists skin irritation and maintains elasticity over long-term industrial use.

• Passive Induction Technology
  The wearable credential functions without internal batteries by harvesting power from the reader field.

Specifications

What’s in the Box

• 1 x S-WB4D RFID Identification Wristband

Why Choose S-WB4D ID Wristband

• Wearable form factor significantly reduces the frequency of lost or misplaced access credentials.

• Standardized 125kHz frequency ensures broad compatibility with multi-vendor proximity reader hardware.

• Overmolded silicone design provides superior resistance to chemical disinfectants and industrial cleaning agents.