Choosing the Right SIM Card Connector: Nano, Micro & Standard Sizes
🔍 Introduction: Why SIM Card Size Matters in Connector Selection
SIM card connectors are critical components in modern communication devices. Whether you're designing a smartphone, tablet, industrial IoT device, or smart meter, choosing the right SIM card size and corresponding connector type can directly affect your PCB layout, mechanical reliability, and product longevity.
At MOARCONN, a professional manufacturer of SIM card connectors with over 15 years of expertise, we offer a wide range of reliable, compact, and custom SIM connectors suited for Nano, Micro, and Standard SIM formats. Visit MOARCONN’s product center .
📐 SIM Card Sizes: Nano vs. Micro vs. Standard
SIM Size
Standard SIM (2FF)
Micro SIM (3FF)
Nano SIM (4FF)
Dimensions (mm)
25 x 15
15 x 12
12.3 x 8.8
Thickness (mm)
0.76
0.76
0.67
Common Devices
Older feature phones
Early smartphones
Modern smartphones, wearables
🔧 Matching SIM Card Sizes with Connector Types
Each SIM size corresponds with a specific connector type. Choosing the wrong connector can lead to mechanical failure, poor contact, or user frustration.
✅ Standard SIM Card Connector (2FF)
Applications: Legacy systems, M2M modules
Mounting Options: Push-pull or push-push
Features: Durable contact, easy insertion/removal
✅ Micro SIM Card Connector (3FF)
Applications: Older smartphone platforms, industrial devices
Features: Slim profile, high contact force, optional card detect switch
✅ Nano SIM Card Connector (4FF)
Applications: Modern smartphones, GPS modules, compact IoT
Features: Ultra-low profile, LCP housing, metal shielded, 6–8 pin options
🔍 Considerations When Choosing the Right SIM Connector
Factor
Card Size
Insertion Type
Number of Pins
Mounting Style
Durability
Environmental Tolerance
What to Consider
Match with end device requirement (Standard, Micro, Nano)
Push-pull (easy manual), push-push (auto eject), hinged lid (stable)
6–8 pins depending on detection & security needs
SMT (surface-mount) or DIP (through-hole)
Contact life cycles, LCP materials, gold plating
Operating temperature, dustproof, vibration resistance
📈 Why Choose MOARCONN for Your SIM Card Connector Needs?
MOARCONN is a trusted source for high-reliability SIM connectors for global electronics brands.
Our Advantages:
🔧 In-house mold design and tooling
⚙️ Support for custom PCB layout and SIM combo sockets
🚀 Fast delivery with over 1 million parts in stock
🌐 Exported to over 30 countries including Germany, India, Brazil, and USA
📞 24/7 tech support and datasheet consultation
Explore our SIM connector catalog:
www.moarconn.com
📘 FAQs: Choosing the Right SIM Connector
Q1: Can I use a Nano SIM in a Micro SIM connector?
A: Only with an adapter, which may reduce reliability. Always use matching connectors.
Q2: What’s the difference between push-push and push-pull?
A: Push-push connectors eject the SIM automatically, while push-pull requires manual removal.
Q3: Do you offer combo SIM + SD card connectors?
A: Yes. Visit our Combo Socket Series for hybrid options.
📩 Get a Free Sample or Technical Drawing
Ready to choose the right SIM card connector? Contact MOARCONN’s technical team for:
Free 3D CAD files
Application-specific recommendations
Pricing for bulk orders
📧 Email us at: yezhu@kiny.com.cn
📞 Or chat via WhatsApp: [+86 18128504729]
📌 Conclusion
Selecting the correct SIM card connector isn't just about size—it's about reliability, user experience, and long-term performance. Whether you're building the next-gen smartphone or rugged IoT tracker, MOARCONN delivers the connectors you can trust.
🔗 Start Your Custom SIM Connector Project →
