Are you familiar with Nano-SIM card socket connectors?
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- Moarconn
- Issue Time
- Mar 31,2025
Summary
The Nano-SIM card (12.3mm × 8.8mm × 0.67mm) is the smallest SIM standard. The socket connector is used to secure and transmit signals in compact devices like smartphones and IoT products, requiring miniaturization, high reliability, and anti-interference capabilities.

Nano-SIM Card Socket Connectors
1. Basic Definition
The Nano-SIM card (12.3mm × 8.8mm × 0.67mm) is the smallest SIM standard. The socket connector is used to secure and transmit signals in compact devices like smartphones and IoT products, requiring miniaturization, high reliability, and anti-interference capabilities.
2. Core Structure & Features
- Mechanical Design:
- Housing: Made of heat-resistant plastic (e.g., LCP) for lightweight insulation.
- Metal Contacts: 6-8 gold-plated copper alloy pins for power, data, and signal transmission.
- Spring Mechanism: Side springs or pogo pins ensure stable contact after card insertion.
- Dust Protection: Some models include sliding/flip covers to prevent dust ingress.
- Electrical Performance:
- Contact resistance ≤50mΩ, insulation resistance ≥100MΩ, withstand voltage 500V AC.
- Supports 2G/5G frequency bands; impedance optimization for high-frequency signals.
3. Types & Selection Criteria
- Mounting Methods:
- SMT (Surface Mount): Space-saving, ideal for consumer electronics (e.g., smartphones).
- DIP (Through-Hole): High mechanical strength, used in industrial equipment.
- Actuation Mechanisms:
- Push-Push: Press-to-eject design, cost-effective (e.g., Moarcoon NS125-T1250 ).
- Flip-Type: Dust-resistant with intuitive operation (e.g.,Moarcoon NS143-T1151 ).
- Tray-Based: Requires a tray for hot-swapping (e.g.,Moarcoon NSKT-Z0000-13 ).
- Key Selection Factors:
- Size: Height typically 0.8-1.2mm; ultra-thin versions for wearables.
- Durability: 1,000-5,000 cycles (consumer-grade); ≥10,000 cycles (industrial).
- Environment: Operating temperature -40°C to +85°C (automotive: up to 105°C); IP54+ for dust/water resistance.
4. Typical Applications
- Smartphones/Tablets: Ultra-thin SMT sockets.
- IoT Devices: Low-power, vibration-resistant designs.
- Automotive Electronics: High-temperature/impact-resistant, AEC-Q200 compliant.
- Wearables: Miniaturized sockets (<1.0mm height).
5. Common Issues & Trends
- Troubleshooting: Contact failures often caused by oxidation/dirt—clean regularly; avoid non-standard SIM cards.
- Future Trends:
- eSIM Integration: Compatibility with embedded SIM chips.
- Miniaturization: Adaptation for AR glasses and smaller devices.
- High-Speed Transmission: Optimized 5G mmWave support.
Recommended Brands: Moarconn Connectivity ,high reliability, cost-effective, ultra-thin designs.
Dongguan Moarcoon Electronics Co., Ltd. is wholeheartedly at your service.