MPD is introducing a low-profile, SMT-mount 2xAA holder designed for automated assembly

Introducing the 2 AA Surface Mount Battery Holder with strap cover.

MPD is introducing a low-profile, SMT-mount 2xAA holder designed for automated assembly. A separate snap-on (sold separately) keeps cells securely retained during vibration, shipping, and field use. BK-6284 and BK-6284-COVER

Pros

SMT assembly: Compatible with pick-and-place and reflowable land patterns; reduces hand-solder steps and labor.
Lower profile & footprint: Frees mechanical height compared to many throughhole cages.
Secure retention (with cover): Better shock/vibration resistance; fewer field dropouts and shipping dislodgements.
Serviceable: End users can replace cells without tools (or with simple screws, depending on cover).
Design flexibility: Use alkaline or NiMH cells; series output suits 3.0 V (alkaline fresh) or ~2.4 V (NiMH) designs.
Inventory flexibility: Optional cover = lower BOM on benign applications; add only when needed.
Cleaner cable-free design: Board-level power, no leads or off-board holders to manage.
Aesthetics & branding: Enclosed look with cover; helps meet consumer product expectations.

Cons (to plan for)

Thermal constraints: Holders must be matched to the reflow profile/material rating; verify datasheet limits and avoid inserting cells until after reflowing.
Board stress: Two AA cells add mass; use adequate pad area and mechanical keep-outs to control flex during drops.

Ideal Applications

IoT & sensors: Smart thermostats, leak/air-quality sensors, door/window sensors, PIR motion sensors, beacons.
Smart locks & access: Residential locks, key safes, keypad modules.
Industrial/field gear: Data loggers, asset trackers, handheld testers, meter interfaces.
Medical (non-implant): Portable monitors, dosing aids, home-use diagnostic peripherals.
Retail & building systems: ESL beacons, shelf talkers, occupancy counters, HVAC damper controllers.
Safety & emergency: Alarms, strobes, battery-backup modules, remote call buttons.
Consumer devices & toys: Remote controls, small audio devices, STEM kits, educational electronics.
Agri/utility: Weather nodes, soil sensors, irrigation controllers.

Design and Integration tips

Electrical: Default series configuration yields ~3.0 V (alkaline fresh ~1.5 Vx2) or ~2.4 V nominal for NiMH; size your regulator/LDO for both chemistries and brownout thresholds (~1.0-1.1 V/cell knee for alkaline).
Mechanical: Observe keep-outs for cover latch/screw bosses. For high-shock applications, specify the covered version and consider thread-forming screws if supported.
Assembly: Use the recommended land pattern and reflow profile from the MPD datasheet; do not load cells until after all heat processes. If wave or hand soldering is used, maintain tip temps/time per spec.
Testing: Provide accessible test pads near the holder for ICT/battery simulation; consider a temporary battery block or pogo fixture during production test. Positioning snapshot (for marketing copy)
Why 2xAA vs. coin cell? 5-10x more capacity, higher pulse current, better coldtemperature performance.
Why SMT vs. through-hole? Faster automated assembly, lower labor/variation, sleeker industrial design.
Why optional cover? Tailor retention to environment; pay for robustness only when needed.