The JT-MWC04 4-Pin Magnetic Watch Charger USB Connector is designed by Jiatel for wearable products such as smartwatches, fitness trackers, and medical monitoring devices. This magnetic charging solution supports bidirectional adaptation with USB-A/C interfaces, enabling “snap-and-charge” convenience through strong magnetic adsorption. It integrates reverse insertion protection, bend-resistant durability, and EMC interference resistance to meet reliability requirements in high-frequency charging scenarios.
Core Technical Specifications (JT-MWC04 Series)
| Parameter Category | Technical Specifications | Performance Advantages |
|---|---|---|
| Model Number | JT-MWC04-M (Male)/JT-MWC04-F (Female) | Paired use for closed-loop magnetic charging |
| Compatible Devices | 主流 smartwatches (e.g., Apple Watch/Huawei Watch/Amazfit), heart rate monitors, kids’ GPS watches | Fits charging bases with 3.5-5.5mm thickness |
| Connection Method | 4-pin magnetic adsorption (N52 neodymium magnet, adsorption force ≥1.2N) + USB 2.0 data transfer | Blind alignment accuracy ±0.3mm, 360° free positioning |
| Material & Process | – Housing: Flame-retardant PC (UL94V-0) – Contacts: Phosphor bronze with 50μ” gold plating – Cable: TPE bend-resistant wire (8,000+ bend tests) |
Gold plating reduces contact resistance (≤30mΩ) and resists sulfidation |
| Electrical Parameters | Rated voltage 5V DC, rated current 2A (Max), data transfer rate 480Mbps | Supports fast charging protocols (with PD adapter) |
| Environmental Adaptability | Operating temperature -20℃~+60℃, IPX4 splash protection (connector body) | Suits complex scenarios like outdoor sweating or humid bathrooms |
| Mechanical Life | Magnetic plug-in life ≥20,000 cycles, cable bend life ≥8,000 times (180° bend radius 5mm) | Exceeds industry average by 50%+ |
Three Core Technical Advantages
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Intelligent Magnetic Connection System
- No Alignment Pressure Design: 4 groups of N52 neodymium magnet arrays enable automatic adsorption via opposite poles, completing connection in 1 second even with one hand—solving the precision alignment pain point of traditional pin charging.
- Reverse Insertion Protection: Unique keying design (female groove + male bump) achieves physical anti-fool protection, avoiding contact damage from reverse insertion and improving charging safety by 90%.
- Detachable Structure: The magnetic module and cable feature a detachable design (Patent No.: CN2023XXXXXX), supporting separate cable replacement to reduce equipment maintenance costs.
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High-Reliability Engineering Design
- Gold-Plated Contact Technology: 50μm gold plating passes 100-hour salt spray test (ASTM B117), maintaining low contact resistance after 3 years of use in high-humidity environments—3x better than ordinary nickel-plated contacts.
- Anti-Interference Shielding: The USB end integrates double-layer shielding (metal braided mesh + aluminum foil), suppressing EMI radiation by 30dB to avoid interference with device Bluetooth/Wi-Fi signals during charging.
- Extreme Environment Resistance: Passes 1.5m drop test (no cracks in connector body) and -20℃ low-temperature bend test (no wire hardening/cracking), suitable for harsh outdoor scenarios.
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Flexible Customization Solutions
- Diversified Interfaces: Supports dual versions of USB-A male/USB-C male; the female head can be integrated into device charging bases or third-party chargers.
- Appearance Customization: Provides black/white/silver housings (with laser-engraved LOGO support), and cable length can be customized (10cm~200cm) for car, desktop, and other charging scenarios.
- Certification Compliance: Passes CE, RoHS, REACH certifications, and provides UL94V-0 flame retardant reports to meet market access requirements in Europe, America, Japan, and South Korea.
Typical Application Scenarios
| Industry Sector | Application Cases | Jiatel Solution Value |
|---|---|---|
| Wearable Devices | Smartwatch/fitness tracker charging bases | Magnetic fast charging enhances user experience and reduces after-sales complaints due to poor contact |
| Medical Equipment | Dynamic ECG monitors, insulin pumps | Splash-proof design + long-life contacts meet long-term use requirements of medical devices |
| Consumer Electronics | Wireless headphone charging cases, portable translators | Lightweight design (15g per set) fits miniaturized device layouts |
| Industrial Control | Wearable sensors, smart name tags | -20℃ wide-temperature operation + vibration resistance (passes 50Hz vibration test) |
Comparison with Traditional Charging Connectors
| Comparison Dimension | JT-MWC04 Magnetic Connector | Traditional Pin Charging Cable | Advantage Analysis |
|---|---|---|---|
| Connection Efficiency | Automatic adsorption, 100% blind plug success rate | Requires visual alignment, error rate ≥15% | Improves charging convenience, especially for users with low vision |
| Contact Protection | Reverse insertion design + magnetic buffer | No anti-fooling, reverse insertion easily burns contacts | Reduces device damage risk and extends service life |
| Environmental Adaptability | IPX4 splash-proof + wide-temperature operation | Ordinary waterproofing, only 0℃~40℃ operation | Adapts to more complex scenarios (e.g., swimming, extreme cold areas) |
| Maintenance Cost | Cable can be replaced separately | Overall replacement, high maintenance cost | Reduces after-sales maintenance costs by 30%+ |
Ordering Information and Technical Support
- Standard Product Specifications:
- Packaging: 50 sets/box (male-female pairs), 1,000 sets/carton (supports neutral packaging or custom color boxes)
- Lead time: 7 working days (standard USB-A version), 15 working days (USB-C customized version)
- Customization Services:
- Provides DFM design drawings and 3D model files (STEP/IGS formats), supporting integrated development of charging base solutions
- Low-volume trial production: 50 sets minimum order, 3 working days for sample testing
- Quality Assurance:
- 100% factory inspection (conduction test/adsorption force test/appearance full inspection), defect rate <0.03%
- 3-year warranty provided, 24-hour response to after-sales technical issues (e.g., magnetic failure, poor contact solutions)
Jiatel’s JT-MWC04 series magnetic charger connectors innovate in “convenience + reliability + customization,” making them the preferred choice for wearable device charging solutions. For samples, technical documents, or customized design support, please contact Jiatel’s technical team. We will provide exclusive solutions based on device dimensions, charging protocols, and appearance requirements.
