Cell Battery Contacts 5231

Huizhou Antenk Electronics Co., Ltd., an IATF16949:2016, ISO9001 and ISO14001 certified manufacturer founded in 2004 with over 250 employees and a 10,000m² facility in Shenzhen and Dongguan, proudly presents the Cell Battery Contacts Model 5231 – a vertical top‑loading coin cell contact with integrated snap‑lock retention designed for 20mm diameter batteries (CR2032, BR2032, etc.). Unlike side‑insertion contacts that require extra PCB space, Model 5231 features a push‑to‑install, pull‑to‑remove vertical mechanism that locks the battery securely using a pair of stainless steel spring arms molded into a high‑temperature PBT insulator. Manufactured through our proprietary insert‑molding process (using 8 Japanese/Taiwanese injection molding machines combined with precision stamping), this hybrid contact delivers a positive retention force of 120–150g, preventing battery dislodgement under 20G shock. Key characteristics include a contact resistance below 30 milliohms (gold‑plated beryllium copper contact spring), support for continuous currents up to 200mA, reliable operation from -40°C to +100°C, and an audible “click” confirming proper seating. The polarized insulator housing eliminates reverse insertion errors. The product is RoHS, REACH compliant and UL recognized (E472792), with 100% automated optical and X‑ray inspection.

 

Application Scope: Model 5231 is ideal for devices requiring tool‑free battery replacement in tight spaces, including portable medical devices (blood glucose meters, insulin pens), wearable electronics (smart watches, fitness trackers), wireless sensors (door/window, motion), active RFID badges, automotive key fobs, memory backup modules, and industrial control panels – markets where Antenk already supplies customers in the USA, Germany, South Korea, India, Russia, and beyond. Usage Method: Solder the four SMT anchor pads (two power, two ground) using standard reflow soldering (peak 260°C). Align the CR2032 battery positive (+) side facing up, press vertically into the contact cavity until a “click” is heard – the spring arms will lock around the battery edge. To remove, insert a thin non‑conductive tool under the battery rim and pry upward. Precautions: Do not exceed 200mA continuous current; ensure the battery is fully seated before closing device enclosure; avoid excessive side force during removal; operate within -40°C to +100°C range. Advantages Over Competitors: Unlike competitors who use simple metal clips without positive locking (batteries can fall out during drop tests), Antenk’s Model 5231 incorporates a mechanical snap‑lock that passes 1.5m drop testing onto concrete. Competitors often require manual soldering of loose battery holders; our SMT‑ready design enables fully automated pick‑and‑place assembly. While others demand 15,000+ MOQ for custom molded contacts, Antenk offers low MOQs (1,000 units) with no tooling fees for standard CR2032 geometry. Our IATF16949 certification ensures automotive‑grade quality. Additionally, our 96‑hour salt spray testing and 15,000 insertion/removal cycles (without loss of locking force) guarantee industry‑leading reliability.

 

Antenk’s vertical integration delivers consistent quality for Model 5231’s hybrid design. Process flow: (1) Precision stamping of beryllium copper contact spring on Japanese presses (11 machines) – 0.15mm material with gold plating (0.5μm) on contact tip; (2) Insert‑molding using PBT GF30 resin on 35‑120 ton Japanese/Taiwanese injection machines – the contact spring is placed into the mold cavity and overmolded to create a single inseparable part; (3) Secondary operation: assembly of stainless steel retention spring arms; (4) 100% AOI dimensional inspection with critical tolerance of ±0.05mm on cavity depth and spring arm position; (5) X‑ray inspection to verify internal contact positioning; (6) Insertion/withdrawal force testing per EIA-364-13 (retention force 120–150g, removal force 80–120g); (7) Contact resistance testing per EIA-364-06; (8) 96‑hour salt spray corrosion testing; (9) Final QC with lot traceability and full dimensional report. Our laboratory houses 20+ testing devices including X‑ray machines, profile projectors, environmental chambers, and automated drop testers. With 250+ employees, 18+ mold‑making machines, and 250+ plastic injection molds, we provide free samples, complete 2D/3D CAD drawings showing the snap‑lock mechanism, and 24‑hour technical support. Contact Antenk today for a quotation – we typically respond within 4 hours and ship Model 5231 samples within 5 days. Ask about our volume discounts (5,000+ units) and custom options (different battery sizes, alternative locking forces, or high‑temperature LCP materials). With 70% of our products exported worldwide and 18 years of experience, Antenk is your trusted partner for innovative, lockable coin cell battery contacts.