Touch Memory China
TM-NMAG

Non-Magnetic Dallas Key

Standard fob assembly without the magnet ring.

The plain assembly for readers that do not need magnetic retention. Consider it for projects where the magnet ring is not required; pricing is confirmed in the quote.

Ordering information

MOQConfirmed by model and order when quoting
Preparation timeAvailability and lead time are confirmed by model and order when quoting
PackingConfirm pack quantity, protection and labelling for the selected model.
SamplesSample quantity, fees and shipping are confirmed for the selected model.
PaymentAgree payment terms and the payee in the quotation and invoice.
ShippingConfirm the shipping method, cost and timing for your destination and order.
CustomizationState ROM, colour, marking and packing needs; feasibility and cost require confirmation.

Key features

  • Plain fob assembly without the magnet ring — for issuance where magnetic retention is not needed; price and MOQ are confirmed in the quote.
  • DS1990A-compatible, for readers that do not need magnetic retention. Compatibility depends on your reader, controller and firmware; test a sample on your own system before ordering.
  • Logo printing, numbering and colour coding for department or building issuance can be requested. Colour, marking and other customization options: feasibility, MOQ and cost are confirmed in the quote.

Specifications

Chip / compatibility DS1990A format
Package F5 key + plastic fob
Options Colour, marking and other customization options: feasibility, MOQ and cost are confirmed in the quote.

Inside the stainless can

① Data lid② Insulating grommet③ 1-Wire die④ Ground base, steelØ 16.25 mmF55.89 mmF33.10 mmSame Ø, two heights
Typical F5 can: Ø16.25 × 5.89 mm · typical F3 can: Ø16.25 × 3.10 mm
64 bit8488Family codeUnique serial numberCRC01 · 00 00 15 8D 42 7A · 6C
Original DS1990A layout reference: 8-bit family code + 48-bit serial + 8-bit CRC

Typical construction of this can format: a stainless-steel shell, an insulating grommet separating lid from base, and the chip bonded inside. Lid = data contact, base = ground return. Wall thickness, grommet material and other construction details: confirm for the supplied version.

Typical applications

Frequently asked questions

How does this differ from the magnetic version?

It is intended to be the same DS1990A-compatible key in the same fob, just without the iron retention ring. Pricing and MOQ are confirmed in the quote.

Does it work on magnetic readers too?

It is intended to read on standard TM readers, including magnetic ones — it just will not be magnetically held, so the user touches and holds it manually while the read takes place. Compatibility depends on your reader, controller and firmware; test a sample on your own system before ordering.

What customisation is available?

Colour, marking and other customization options (housing colour for departmental coding, logo printing): feasibility, MOQ and cost are confirmed in the quote. Loose or pre-assembled supply with the fobs is also confirmed in the quote.