Analog Devices Inc./Maxim Integrated DS9100-B+

Overview

DS9100-B+ from Maxim Integrated is a center-contact cantilever stamping for F5 MicroCan iButton® readers, providing data contact with 0.3 mm nominal deflection force, >10,000 insertion cycles, and stainless steel construction with selective tin-lead plating for PCB solderability. It mates with DS9100-A+ outer ring (ground) to form a complete touch-and-hold probe used in industrial access control readers and temperature logger interfaces.

For engineers reviewing the DS9100-B+ datasheet, DS9100-B+ pinout, DS9100-B+ application, or DS9100-B+ equivalent, key selection factors include cantilever contact geometry, insertion cycle rating, RoHS-compliant plating, PCB mounting orientation, and compatibility with DS9100-A+ ground ring for reliable iButton® lid-to-contact interface under dwelled pressure.

Technical Context

The DS9100-B+ functions exclusively as a stamped metal center-contact element-not an IC, connector, or active component-and requires mechanical integration with DS9100-A+ (outer ground ring) to form a functional iButton® probe assembly. Its cantilever design delivers defined spring force and travel to ensure stable electrical contact with the F5 MicroCan lid while maintaining mechanical resilience across thermal reflow and repeated insertions.

Unlike coiled-spring variants (e.g., DS9100-C+), the DS9100-B+ uses a planar cantilever beam for data contact, resulting in lower profile height (1.4 mm max), fixed deflection range (0.3 mm nominal), and optimized PCB pad layout per Maxim's recommended footprint for cantilever-optimized mounting on Side A of the board.

Key Specifications

Pinout & Package

DS9100-B+ is a stamped metal contact component with no semiconductor die, no pins, and no IC-style package. It mounts directly to a PCB via two solder pads (center-data terminals) and relies on mechanical mating with DS9100-A+ for full functionality. No pinout table applies.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar iButton® probe contact applications.

Compared with DS9100-C+, DS9100-B+ offers lower profile and tighter PCB layout control but less insertion depth tolerance; versus DS9098, DS9100-B+ enables thinner mechanical designs and direct metal-to-PCB thermal/electrical paths but requires separate ground ring integration.

Availability

DS9100-B+ is available at Aetrix Electronics and suitable for industrial access control readers, portable temperature loggers, asset tracking terminals, and medical device ID readers requiring stable component supply and long-cycle mechanical reliability.

Supply support for DS9100-B+ 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

Maxim Integrated (now part of Analog Devices) designs precision analog, mixed-signal, and digital ICs for industrial, automotive, communications, and computing applications.

The DS9100-B+ belongs to Maxim's iButton® interface hardware product line, engineered specifically for robust, field-deployable mechanical contact solutions that enable reliable 1-Wire® communication with F5 MicroCan devices.

FAQ

What is the primary mechanical function of the DS9100-B+ in an iButton® reader system?

The DS9100-B+ serves as the center-contact cantilever stamping that establishes and maintains electrical connection to the lid (data terminal) of an F5 MicroCan iButton®. When pressed against the can, its stainless steel cantilever deflects ~0.3 mm to deliver consistent contact force-enabling reliable 1-Wire® data transfer when paired with DS9100-A+ for ground contact. DS9100-B+ does not contain electronics or IC functionality.

Can DS9100-B+ be used without DS9100-A+?

No-DS9100-B+ is designed exclusively as a center-contact component and must be used with DS9100-A+ (outer ground ring) to form a complete functional probe. DS9100-A+ provides the rim-ground contact and mechanical retention for the MicroCan. Using DS9100-B+ alone results in incomplete circuit formation and no reliable iButton® interface. DS9100-B+ has no standalone operational capability.

Is DS9100-B+ compatible with automated PCB assembly processes?

Yes-DS9100-B+ is qualified for standard PCB solder reflow profiles, including peak temperatures up to 260°C. Its stainless steel body and selective tin-lead plating ensure solder joint integrity and resistance to thermal deformation. The component mounts on Side A of the PCB using two dedicated solder pads, and its drainage-optimized shape supports post-reflow cleaning without fluid entrapment.

How does DS9100-B+ differ from DS9100-C+ in terms of mechanical behavior?

DS9100-B+ uses a planar cantilever beam for data contact, delivering lower profile (1.4 mm max), fixed 0.3 mm nominal deflection, and tighter PCB layout control. DS9100-C+ employs a coiled spring, offering higher contact force, greater travel (0.5 mm), and better tolerance for MicroCan depth variation-but at 2.1 mm height. Both share identical mounting footprints and RoHS compliance, but DS9100-B+ is preferred where Z-height is constrained.

Does DS9100-B+ require special cleaning or handling after PCB assembly?

No special cleaning is required-DS9100-B+'s open geometry allows cleaning fluids to drain freely, minimizing residue buildup. Standard aqueous or solvent-based post-assembly cleaning processes are fully compatible. Its stainless steel construction resists corrosion, and selective tin-lead plating remains stable under typical cleaning chemistries. No conformal coating or post-cleaning verification is mandated for DS9100-B+ functionality.