Engineering Datasheet: AA Dual M/F Battery Contact, Direct Replacement for Keystone 5218
Integrating dual-cell battery contacts into molded plastic chassis requires strict adherence to material rigidity and geometric tolerances. The JIATEL JT-BC-AA-KS5218 is a direct footprint replacement for the Keystone 5218. Unlike standard flat-plate contacts, this dual (male/female) slide-in contact features specialized side retention slots and locking tabs, allowing hardware engineers to execute high-retention mechanical integration for AA battery compartments without altering existing plastic mold toolings.
Verified Structural Parameters
| Target Cross-Reference | Direct Footprint Replacement for Keystone 5218 |
| Contact Polarity | Dual M/F (Left: Positive Dimple / Right: Negative Spring) |
| Chassis Engagement | 2-1.50 mm Side Slots & Top Locking Tabs |
| Solder / Wiring Tab Hole | Ø2.01 mm |
| Base / Spring Metallurgy | T=0.50 mm Steel Plate | Ø0.60 mm Music Wire Spring |
Target Deployments
- Consumer Electronics: High-drain battery compartments for game controllers and RC transmitters.
- Industrial Testing: Handheld environmental meters requiring secure series power links.
- Smart Home Devices: Electronic door locks and portable emergency lighting.
Metallurgical Rigidity & Mechanical Retention
We stamp the JT-BC-AA-KS5218 backplate from highly rigid T=0.50 mm Steel. The incorporated side slots and locking tabs provide superior mechanical grip against the plastic chassis walls, preventing the contact from shifting during aggressive battery extraction or insertion. The negative contact cathode utilizes a helical spring wound from Ø0.60 mm Music Wire, ensuring maximum compression recovery. Paired with the left-side positive dimple, it guarantees stable current flow across the series circuit. We finish the entire component with high-density Nickel Plating, effectively mitigating galvanic corrosion and long-term oxidation.
TECHNICAL SUPPORT ONLY
Mechanical slide-in integration demands strict adherence to chassis slot dimensions and locator pin tolerances. Layout errors cause loose battery seating or chassis interference. Our engineering rules strictly prohibit the distribution of unverified digital mockups. We execute structural footprint validation exclusively through official [Technical Datasheets] and dimensionally controlled [2D Footprint Specs].
Confirm that our dual contact matches your mold constraints. We must deploy our Senior NPI Engineering Team to ensure a 1:1 mechanical replacement. Submit your chassis coordinates directly to our technical desk: NPI Engineering Queue. We will dispatch matched, production-ready PDF drawings within 12 working hours.
