DS1990A-F3 Serial Number iButton
Same silicon as F5 in the slimmer 3.1 mm F3 can for flush mounting.
Identical electrical behaviour to the DS1990A-F5 but supplied in the low-profile F3 can — same Ø16.25 mm diameter, 3.10 mm instead of 5.89 mm high. Suits flush-mount receptors, adhesive checkpoint mounting and panel applications where the flanged F5 does not fit.
Key features
- Electrically identical to the DS1990A-F5 — same read-only 64-bit ROM, family code 01h.
- Taller F3 can (Ø17.35 mm) suits flush-mount receptors and panels where the F5 flange is unwanted.
- Same 1-Wire reader compatibility and −40 to +85 °C rating as the F5.
Specifications
| Chip / compatibility | DS1990A compatible |
|---|---|
| Memory | 64-bit ROM, read-only |
| Package | F3 can, Ø16.25 × 3.10 mm |
| Protocol | 1-Wire® |
| Operating temperature | −40 °C … +85 °C |
Inside the stainless can
A 0.25 mm solid stainless shell, a UV-stable polypropylene grommet isolating lid from base, and the die bonded inside. Lid = data contact, base = ground return.
Ordering information
| MOQ | 100 pcs |
|---|---|
| Lead time | 3–7 days for stock items, 10–15 days for OEM |
| Packing | Bulk ESD bags (100–200 pcs/bag, 2 bags/carton); blister or header cards for retail on request |
| Samples | Free samples for volume buyers — courier at cost |
| Payment | T/T bank transfer; other terms negotiable for repeat orders |
| Shipping | DHL / FedEx / UPS air express; sea or rail freight for pallet volumes |
| Customization | ROM ranges · housing colours · laser logo · private label |
Typical applications
Related products
DS1990A-F5 Serial Number iButton
The industry-standard 64-bit ROM key in the F5 can.
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R-variant that guarantees a presence pulse the instant the key touches a live bus.
TM1990A-F5 Touch Memory Key
Cost-optimised DS1990A equivalent — the volume workhorse for intercom keys.
Magnetic Dallas Key (with holder)
DS1990A key pre-assembled into a magnetic-ring key fob.