IDTS-1804 UHF On-Metal PCB RFID Tag 18x4x3.5 mm for Tool Cribs, PCBs and Small Metal Assets

The IDTS-1804 is a passive UHF on-metal (anti-metal) RFID tag built on a PCB body and shaped as a small rectangular bar measuring just 18 x 4 x 3.5 mm. It is designed to be fixed directly onto metal, and its slim bar profile fits the narrow edges, brackets and housings where a conventional label or a larger hard tag simply will not sit. Two mounting holes, one at each end, allow it to be mechanically fixed to the asset, and the chip sits protected under a black epoxy blob at the centre of the board.

Key Specifications

• SKU: IDTS-1804 (IDentium / IDTS)
• Product type: UHF on-metal (anti-metal) RFID tag
• Frequency: 860-960 MHz (global UHF band); India operates in the 865-867 MHz de-licensed band
• Air interface protocol: ISO18000-6C
• Chip: U8 (as specified)
• EPC memory: 128 bits
• TID memory: 96 bits
• Read range: approx. 1 m on metal
• Operating temperature: -20 C to +150 C
• Dimensions: 18 x 4 x 3.5 mm (length x width x thickness)
• Material: PCB
• Substrate class: PCB
• Form factor: small rectangular bar with two mounting holes, one at each end (hole diameter is not specified)
• Appearance: grey/silver top surface with a black epoxy chip dot on a green PCB body
• On-metal use: anti-metal design, intended for mounting on metal surfaces
• Category: PCB and Ceramic Tags

Applications

• Tool cribs and maintenance stores - identification of hand tools, small dies, cutters and spare parts that are issued and returned daily
• Electronics manufacturing - tagging PCBs, sub-assemblies and instrument housings as they move through the line, where the 18 x 4 mm footprint suits the space available on a board edge or chassis rail
• IT asset audits - marking network switches, rack accessories, docking stations and small metal enclosures for faster annual verification than barcode scanning allows
• Manufacturing WIP - small metal jigs, fixtures, mould inserts and gauges circulating between machines and inspection
• Utilities and process plants - valves, fittings, couplings and other small metal components inspected on a maintenance calendar
• Pharma and laboratory environments - small stainless equipment, trolley fittings and calibrated accessories that need traceable identity
• Elevated-temperature process stages - components that pass through curing, drying or paint-shop stages that remain inside the stated -20 C to +150 C range

Why Choose This Tag

• Genuinely small. At 18 x 4 x 3.5 mm it is one of the smallest on-metal formats we stock, opening up assets that are too narrow or too crowded for a standard anti-metal tag.
• Reads on metal. The anti-metal PCB construction is intended for direct mounting on metal, and delivers approx. 1 m on metal - useful working distance from a handheld for aisle-side or bench-side audits.
• Wide thermal window. The -20 C to +150 C operating temperature covers Indian ambient extremes as well as assets that see warm process stages.
• Fixed, not stuck. Two mounting holes, one at each end, allow mechanical fixing to the asset rather than relying on adhesive alone.
• Standards-based data. ISO18000-6C with 128-bit EPC and 96-bit TID means it works with the passive UHF handhelds and fixed readers already deployed across Indian warehouses, plants and IT estates.

Read range is a typical figure and will vary with the reader and antenna used, transmit power, the mounting surface and the surrounding environment. We recommend a sample trial on your own assets before bulk deployment.

Frequently asked questions

Where does the slim bar shape of the IDTS-1804 help?

At just 18 x 4 x 3.5 mm the bar profile fits narrow edges, brackets and housings where a conventional label or a larger hard tag will not sit. It is designed to be fixed directly onto metal, which is where most tagging projects for tool cribs, PCBs and small assets run into trouble with ordinary tags.

How is it mounted and how is the chip protected?

Two mounting holes, one at each end, allow the tag to be mechanically fixed to the asset rather than glued. The chip itself sits protected under a black epoxy blob at the centre of the PCB, so the tag can take the knocks and cleaning that come with tool cribs, workshops and maintenance stores.

Which UHF frequencies does the IDTS-1804 support?

It covers the global 860 to 960 MHz UHF band. India uses 865 to 867 MHz, which is WPC approved and licence free within notified limits and lies inside the ETSI 865 to 868 MHz range, so the same tag suits Indian sites and ETSI deployments in the EU, UK, GCC and much of Africa.

What is the price and minimum quantity for the IDTS-1804?

Pricing depends on how many you order, so please use the price listed on this page or ask us for a bulk quote. Identium is a BIS and WPC certified Indian manufacturer, which means bulk and OEM pricing, custom encoding of your asset numbers, evaluation samples and pan India shipping are available.

Related guides & resources

• Browse all RFID PCB and Ceramic Tags
• Read: choosing on-metal RFID tags
• Read: RFID for manufacturing & WIP tracking
• Manufacturing case study: manufacturing case study