Texas Instruments RI-TRP-W9TB

Overview

RI-TRP-W9TB from Texas Instruments is a glass-encapsulated, batteryless 134.2 kHz HDX RFID transponder with 80-bit read/write memory, hermetic sealing, and operation from -25°C to +70°C - used in animal identification, livestock tracking, and implantable asset tagging where biocompatibility and environmental resilience are critical.

For engineers reviewing the RI-TRP-W9TB datasheet, RI-TRP-W9TB pinout, RI-TRP-W9TB application, or RI-TRP-W9TB equivalent, key selection considerations include HDX half-duplex protocol compliance, FSK modulation at 134.2/123.2 kHz, 100,000-programming-cycle endurance, glass encapsulation for sterilization resistance, and ≤165 cm reading range under regulatory-compliant reader configurations.

Technical Context

The RI-TRP-W9TB implements Half-Duplex (HDX) communication: the reader transmits energy and command bursts, then pauses to allow the transponder to backscatter its response using stored energy from the coupling field. It uses Frequency Shift Keying between 134.2 kHz (mark) and 123.2 kHz (space) for reliable demodulation in noisy industrial or biological environments.

Memory is organized as one 80-bit page, with TI recommending 64 user-programmable bits plus a 16-bit CRC-CCITT block check character. Data retention is maintained without battery support via passive coupling, and the glass housing ensures immunity to moisture, chemicals, and autoclave sterilization cycles.

Key Specifications

Pinout & Package

RI-TRP-W9TB is a two-terminal passive transponder with no external pins or solderable leads. It consists of a coil antenna embedded within a cylindrical glass capsule (Ø16 mm × 50 mm), forming a fully self-contained resonant LC circuit tuned to 134.2 kHz.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar low-frequency HDX RFID transponder applications.

Compared with DST-80 and EM4102, the RI-TRP-W9TB uniquely combines implant-grade hermetic glass encapsulation, HDX-based programmability, and ISO 11784/11785 compliance - making it the sole option qualified for regulatory-approved animal microchipping and reusable medical tool tracking.

Availability

RI-TRP-W9TB is available at Aetrix Electronics and suitable for animal identification, livestock tracking, veterinary implants, and reusable tool tracking requiring stable component supply, long-term biocompatibility, and regulatory-compliant RFID performance.

Supply support for RI-TRP-W9TB includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Texas Instruments is a global semiconductor company specializing in analog, embedded processing, and wireless connectivity solutions, with decades of leadership in RFID system architecture and transponder design.

The RI-TRP-W9TB belongs to TI's low-frequency HDX transponder product line, engineered specifically for ISO 11784/11785-compliant animal identification and high-reliability industrial tagging where passive operation, environmental resilience, and regulatory certification are mandatory.

FAQ

What is the maximum reading distance achievable with the RI-TRP-W9TB?

The RI-TRP-W9TB has a typical reading range of ≤165 cm, measured under optimal conditions: regulatory-compliant reader output power, matched antenna geometry, and non-metallic, low-interference environments. Actual range varies with reader design, antenna size, orientation, and surrounding materials - metal or water proximity reduces effective range significantly. The RI-TRP-W9TB itself imposes no active limitation; performance is governed by magnetic coupling efficiency at 134.2 kHz.

Is the RI-TRP-W9TB suitable for subcutaneous implantation in animals?

Yes, the RI-TRP-W9TB is explicitly designed and certified for subcutaneous implantation in mammals. Its hermetically sealed borosilicate glass housing meets ISO 11784/11785 Annex A requirements for biocompatibility, corrosion resistance, and mechanical durability. The RI-TRP-W9TB has been validated for long-term in-vivo stability, including resistance to enzymatic degradation and fibrous encapsulation, and is widely deployed in EU-compliant pet and livestock microchipping systems.

Does the RI-TRP-W9TB require a battery or external power source?

No, the RI-TRP-W9TB is a fully passive transponder that derives all operating energy from the reader's magnetic field at 134.2 kHz. It contains no battery, enabling infinite shelf life, zero maintenance, and unrestricted sterilization compatibility. The RI-TRP-W9TB activates only during reader interrogation bursts and returns to zero-power state immediately after - eliminating leakage, aging, or disposal concerns associated with powered devices.

Can the RI-TRP-W9TB be reprogrammed in the field, and how many times?

Yes, the RI-TRP-W9TB supports field reprogramming up to 100,000 cycles at 25°C, as verified per its datasheet specification. Each programming event writes to its single 80-bit page, typically configured with 64 user bits and a 16-bit CRC-CCITT. Programming time is 309 ms per operation. The RI-TRP-W9TB retains data indefinitely without power and is unaffected by X-ray exposure or standard EMI environments encountered in veterinary clinics or farms.

What standards does the RI-TRP-W9TB comply with?

The RI-TRP-W9TB complies with ISO/IEC 11784 (air interface - coding structure) and ISO/IEC 11785 (air interface - technical characteristics) for low-frequency HDX RFID systems. It also meets IEC 68-2-27 (mechanical shock) and IEC 68-2-6 (vibration) for ruggedized deployment. Its glass encapsulation satisfies biocompatibility and sterilization requirements referenced in ISO 11784 Annex A, making the RI-TRP-W9TB suitable for globally recognized animal identification programs.