Ibutton DS1990A-F5 TM Card Pack of 100 - Durable Read-only Keys

In this review of the YARONGTECH Ibutton DS1990A-F5 pack, the bottom line is simple: this kit is for installers and facilities managers who need large quantities of reliable, read-only contact keys for access and control systems. The reviewer found the Ibutton devices exceptionally robust and easy to deploy; they require no onboard power and read in under 5ms, which makes them ideal where fast, passive identification is required. For projects that demand corrosion resistance and consistent serial IDs, this pack delivers predictable performance.

Key Features

• Read-only DS1990A-F5: Provides a unique 64-bit serial number that is stable and ideal for systems requiring fixed identifiers.
• Fast read time: Can be read in less than 5ms, reducing wait time at points of entry and improving user flow.
• Durable construction: High temperature resistant resin, stainless internal spring and gold-plated internal panels ensure longevity in harsh conditions.
• Fully sealed: Rated for 100% watertight performance with vibration and electrical characteristics testing for reliable field use.
• No external power needed: Passive TM card design works with a powered collector, simplifying installation and reducing maintenance.

Who It's For

The Ibutton DS1990A-F5 pack is aimed at security integrators, building managers, and operators of access control, electronic locks, and patrol systems who need a bulk supply of identical, dependable read-only tokens. The pack size and the passive TM technology make it especially practical for large sites, clubs, or facilities with many users.

It is less suitable for projects that require writable credentials, advanced cryptographic authentication, or proximity-only passive cards; buyers needing those capabilities should consider programmable or secure smart card alternatives.

Pros & Cons

Pros

• Very durable materials resist rust, corrosion and high temperatures, suited for demanding environments.
• Fast 5ms read time streamlines access where speed matters.
• Passive operation eliminates the need for batteries in the token itself and reduces maintenance.
• Consistent 64-bit serial numbers simplify system administration and device tracking.

Cons

• Read-only design means it cannot be reprogrammed for changing access permissions or multi-factor uses.
• Bulk pack may be excessive for very small installations or single-user needs.

Specifications

Product	Ibutton DS1990A-F5 TM Card
Quantity	Pack of 100
Serial	64-bit unique ID, family code 01
Read time	Less than 5ms
Construction	High temperature resin, stainless steel spring, gold-plated internal panels
Sealing	100% watertight, vibration and electrical tested
Power	Passive; requires powered collector

Our Verdict

The YARONGTECH Ibutton DS1990A-F5 pack offers rugged, reliable read-only tokens at volume for access control and locking systems. Installers and facility teams will appreciate the sealed construction, fast read time and consistent 64-bit IDs, making this a cost-effective choice for large deployments that do not require writable or cryptographically secure credentials.

Frequently Asked Questions

Are these Ibuttons waterproof?
Yes, the units are described as 100% watertight and have passed vibration and electrical characteristics testing for field use.

Do the Ibuttons need batteries?
No, these are passive TM cards that draw power from the reader or collector and do not contain a battery.

Can the serial number be changed?
No, the DS1990A-F5 units are read-only and provide a fixed 64-bit serial number and cannot be reprogrammed.