Glossary of SIM Card Connector
General Terms
1. SIM Card (Subscriber Identity Module)
A small, removable card that stores information for identifying and authenticating subscribers on mobile networks.
2. Form Factors
The physical size and design of the SIM card:
*Full-size SIM (1FF): 85.6 x 53.98 mm
*Mini-SIM (2FF): 25 x 15 mm
*Micro-SIM (3FF): 15 x 12 mm
*Nano-SIM (4FF): 12.3 x 8.8 mm
3. SIM Tray
A holder or slot mechanism designed to securely position the SIM card in devices.
Connector Types
1. Push-Push Connector
A mechanism where the SIM card is inserted by pushing it in, and removed by pushing it again to release.
2. Push-Pull Connector
A simpler mechanism where the SIM card is inserted manually and pulled out without spring-loaded assistance.
3. Hinged Connector
Includes a lid that clamps down to secure the SIM card.
4. Sliding Connector
A sliding mechanism that locks the SIM card in place.
Electrical Features
1. Contact Pins
Metal connectors that establish electrical contact with the SIM card's gold-plated pads. Typically 6 or 8 pins.
2. Hot-Swap Capability
The ability to replace or insert a SIM card without turning off the device.
3. EMI Shielding (Electromagnetic Interference)
A protective layer or design that minimizes interference from external signals.
Mechanical Features
1. Durability (Cycle Life)
The number of times a SIM card can be inserted and removed without the connector failing (e.g., 5,000–10,000 cycles).
2. Retention Force
The force required to keep the SIM card securely in place during operation.
3. Low-Profile Design
Slim connectors suitable for compact devices like smartphones, tablets, and IoT modules.
Materials
1. Housing
The body of the connector, typically made from high-temperature plastics or metals.
2. Contact Material
Often gold-plated brass or phosphor bronze to ensure excellent conductivity and corrosion resistance.
Compliance & Standards
1. ISO/IEC 7816
International standards for electronic identification cards, including SIM cards.
2. RoHS Compliance
Restriction of Hazardous Substances, ensuring the connector is free from harmful materials like lead.
3. Halogen-Free
Indicates that the connector materials do not emit harmful halogens if burned.
Applications
1. IoT Devices
Used in sensors, meters, and trackers requiring cellular connectivity.
2. Consumer Electronics
Smartphones, tablets, laptops with cellular modules.
3. Automotive
Embedded SIMs in vehicles for telematics and connectivity.
