Engineering Datasheet: Leaf Spring Contact with THM Solder Tail, Form-Fit Drop-In for Keystone 1021-1
Securing multi-size cylindrical cells (AAA, AAAA, N) within high-vibration molded battery enclosures requires rigorous mechanical retention and rigid PCB pin coplanarity. The Jiatel JT-BC-1021-1 functions as a high-reliability, 1:1 mechanical drop-in alternative for the industry-standard Keystone 1021-1 contact. Engineered with a flat slide-in top flange for secure seating in plastic chassis slots, this component features a downward 1.0mm solder tail. This dual-mounting architecture allows hardware engineers to lock the bracket securely into the enclosure while directly wave-soldering the tail to the FR4 board, eliminating secondary wire routing.
Verified Electro-Mechanical Parameters
| Target Cross-Reference | Form-Fit Mechanical Drop-In for Keystone 1021-1 |
| Mounting Architecture | Slide-In (Molded Case) + PCB Through-Hole Mount (THM) |
| Top Flange Width | 6.4mm (0.250″) |
| Base Height (Dimension H) | 10.3mm (0.405″) |
| PCB Interface | 1.0mm (0.038″) Width Solder Tail |
| Base Metallurgy | Spring Steel | Tin-Nickel Plated |
Target Deployments
- Industrial IoT: Wireless sensor nodes supporting compact cell chemistry (AAA/N).
- Medical Diagnostics: Portable patient monitoring devices.
- Security Systems: Door/window alarms utilizing high-tension battery leaf springs.
Metallurgical Rigidity & Solder Joint Integrity
To prevent contact relaxation and ensure zero-defect soldering, the JT-BC-1021-1 is precision-stamped from rigid Spring Steel. The flexible leaf spring arm absorbs length variations across AAA, AAAA, and N cells, maintaining optimal downward contact tension. The entire assembly is finished with high-density Tin-Nickel Plating. This specific surface engineering maximizes solder paste wettability on the 1.0mm THM pin during the wave soldering process, while delivering exceptional defense against acidic electrolyte fluid leaks.
NPI Compartment Layout & SLA Directive
Enclosure integration demands strict adherence to molded plastic slot dimensions (6.4mm width) and precise THM drill hole tolerances. Our engineering directive strictly prohibits the deployment of unverified 3D digital mockups for compartment clearance checks. We execute structural seating audits and footprint validation exclusively through official [Technical Datasheets] and dimensionally controlled [2D Footprint Specs].
To confirm that our slide-in THM contact precisely matches your plastic compartment injection mold constraints and PCB land pattern, mobilize our Senior NPI Engineering Team. Submit your spatial constraints directly to our technical desk: NPI Engineering Queue. We guarantee the dispatch of matched, production-ready PDF drawings within 12 working hours of form submission.
