HKCARD ELECTRONICS CO.,LIMITED: Your Trusted Partner in SIM Card Industry and Custom Manufacturing

Introduction

As a global leader in smart card solutions, HKCARD ELECTRONICS CO.,LIMITED has been at the forefront of SIM card R&D, production, and customization since 2016. With over a decade of industry expertise, we specialize in delivering cutting-edge SIM technologies tailored for telecom operators, IoT ecosystems, and device manufacturers worldwide. This article explores SIM card classifications by network, highlights HKCARD ELECTRONICS CO.,LIMITED‘s HEM/ODM capabilities, and showcases our commitment to driving connectivity advancements.

SIM Card Classifications by Network

HKCARD ELECTRONICS CO.,LIMITED provides comprehensive SIM solutions optimized for evolving network standards:

1. 2G/3G SIM Cards

• Applications: Voice calls, SMS, and basic data services.
• HKCARD Offerings: High-durability Mini-SIM and Micro-SIM cards for legacy devices, compatible with GSM and WCDMA networks.
• Key Feature: Robust encryption protocols for secure communication.

2. 4G LTE SIM Cards

• Applications: High-speed data transmission and VoLTE services.
• HKCARD Offerings: Programmable Nano-SIM and embedded SIM (eSIM) with 128K-256K memory, supporting Milenage and XOR algorithms7.
• Case Study: Customized LTE test SIM cards for CMW500 and Anritsu MT8820C device validation2.

3. 5G SIM Cards

• Applications: Ultra-low latency, massive IoT connectivity, and network slicing.
• HKCARD Offerings: 5G-ready eSIMs with multi-IMSI support and remote provisioning capabilities.

4. IoT-Specific SIM Cards

• Applications: Smart meters, wearables, and industrial sensors.
• HKCARD Offerings: MFF2-embedded SIMs (SON-8 package) with extended temperature tolerance (-40°C to +105°C)7.
• Example: NFC-enabled SIMs for contactless payment terminals

SIM Card Classification and Size Specifications

I. SIM Card Classification

1. Standard SIM (Full-Size SIM， ID-1 Card SIZE)
   • Features: The earliest SIM card with the largest size, often referred to as a “large card.”
   • Compatible Devices: Early feature phones and certain legacy devices.
   • Dimensions: 25mm × 15mm × 0.8mm.
2. Mini-SIM (2FF)
   • Features: Known as the “standard SIM,” it dominated the market as the mainstream type for years.
   • Compatible Devices: Most smartphones (e.g., early Android models).
   • Dimensions: 25mm × 15mm × 0.76mm.
3. Micro-SIM (3FF)
   • Features: Smaller than Mini-SIM with ~15% reduced thickness, termed the “small card.”
   • Compatible Devices: iPhone 4/4S, Samsung Galaxy series, etc.
   • Dimensions: 15mm × 12mm × 0.76mm.
4. Nano-SIM (4FF)
   • Features: The smallest physical SIM, driven by Apple, with further thickness reduction.
   • Compatible Devices: iPhone 5 series, high-end Android devices.
   • Dimensions: 12.3mm × 8.8mm × 0.67mm.
5. eSIM (Embedded SIM)
   • Features: No physical slot; embedded directly into the device motherboard, supporting remote profile configuration.
   • Compatible Devices: IoT devices, modern smartphones (e.g., post-iPhone XS models).
   • Package Specifications: SON-8 (6.00mm × 5.00mm × 1.00mm).

II. SIM Card Size Comparison Table

III. Recommended Manufacturers

1. HKCARD ELECTRONICS CO.,LIMITED
   • Advantages: Specializes in SIM CARD , R&D and production, covering eSIMs, IoT cards, and test cards. Partners include Samsung and Huawei.
2. Siemens/Philips
   • Advantages: Established chip manufacturers offering high-security eSIM solutions compliant with ETSI MFF2 standards.
3. Qualcomm
   • Advantages: Leader in eSIM technology, supporting multi-network switching and remote configuration.

IV. Key Considerations

1. SIM Card Cutting Compatibility:
   • Micro-SIM can be trimmed to Nano-SIM using cutting tools, but chip alignment is critical to avoid damage.
2. eSIM Trends:
   • Future devices will phase out physical slots in favor of eSIMs to enhance space efficiency and security.

This translation maintains technical accuracy while adhering to industry terminology and formatting standards. Let me know if further refinements are needed!

HKCARD ELECTRONICS CO.,LIMITED: HEM & ODM Services

As a one-stop solution provider, HKCARD ELECTRONICS CO.,LIMITEDempowers clients with end-to-end customization:

1. Hardware Engineering & Manufacturing (HEM)

• Design: Custom form factors (e.g., round SIMs for robotics) and material optimization for harsh environments.
• Production: ISO-certified factories in Shenzhen with 10M+ monthly capacity.
• Quality Control: 100% functional testing using Agilent 8960 and CMU200 equipment.

2. Original Design Manufacturing (ODM)

• Tailored Solutions:
  • Branded SIM cards with operator-specific artwork and packaging.
  • Multi-profile eSIMs for global roaming7.
• Success Story: ODM partnership with Samsung and Huawei for IoT SIM modules.

 SIM Card Solutions by HKCARD ELECTRONICS CO.,LIMITED

• Target Phrases: “5G SIM card manufacturer,” “eSIM ODM services,” “IoT SIM supplier.”
• Content Integration: Technical blogs and datasheets highlighting terms like “NFC test SIM for CMW500”.

• Regional Focus: Africa, Middle East, and Europe with localized landing pages3.
• Structured Data: Schema markup for product listings (e.g., “Test SIM Card for Agilent 8960”).

Why Choose HKCARD ELECTRONICS CO.,LIMITED?

1. Technical Expertise: 20+ R&D engineers specializing in Java Card OS and RFID/NFC integration7.
2. Fast Turnaround: 7-day sample delivery and 15-day mass production cycles.
3. Certifications: ETSI MFF2, ISO 7816, and GSMA SAS-UP compliance.
4. Sustainability: Recyclable SIM materials and carbon-neutral production initiatives11.

Conclusion

HKCARD ELECTRONICS CO.,LIMITED redefines connectivity through innovative SIM card solutions and flexible HEM/ODM services. Whether you require network-specific SIMs, IoT-embedded modules, or branded ODM products, our team delivers unparalleled quality and agility. Contact us today to discuss your project needs and leverage our expertise in shaping the future of smart connectivity.

If need customize sim card , or oem or odm , Contact HKCARD ELECTRONICS CO.,LIMITED:
+86-158-1737-2512 | byronhan@cardmfg.com,byron@cardmfg.com , byron@cardmfg.com| https://cardmfg.com/

Best Regards

Byron

HKCARD ELECTRONICS CO.,LIMITED

Whatsapp/wechat:+8615817372512

Skype：byron1681

Email：byron@cardmfg.com