SIM Form Factors
SIM cards comes with different standard sizes or forms:
- For removable SIM, Form Factor are from 1FF to 4FF (nano-SIM) depending on the size of the SIM
- For embedded SIM, Form Factor is MFF2
Below are the dimensions of each form factor:
- 1FF: 85.6mm × 53.98mm × 0.76 mm – as mentioned, no longer used in today's applications
- 2FF: 25mm x 15mm x 0.76mm – Mini
- 3FF: 15mm x 12mm x 0.76mm – Micro
- 4FF: 12.3mm × 8.8mm × 0.67mm – Nano
Please find below a visual description of the removable SIM:
EMnify SIM Use-case
It is possible to select industrial-grade SIMs. These are more robust to safeguard your device from corrosion, vibrations and other environmental factors, such as extreme temperature conditions.
Typically, industrial grade SIMs can withstand temperatures between -40°C and +105°C.
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Use Case |
DIM Commercial |
DIM Industrial |
Industrial MFF2 |
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Illustration |
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Commercial |
✓ |
✓ |
✓ |
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Industrial |
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✓ |
✓ |
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EMnify SIM Specification
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Product Range |
DIM Commercial |
DIM Industrial |
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Form Factor
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2FF/3FF/4FF |
2FF /3FF/4FF and MFF2 |
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Operating Temperature Range
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-25°C +85°C |
-40°C +105°C |
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Supply Voltage Range
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1.8V, 3V and 5V |
1.8V, 3V and 5V |
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Data Retention
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Up to 10 years |
Up to 15 years at 85°C |
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Erase/Write Cycles per Page
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Up to 500,000 Cycles |
Up to 1,000,000 Cycles |
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Memory
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128 kB |
128 kB |
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Usage recommended for |
Suitable for indoor applications/ consumer devices e.g. modems |
o designed for extreme conditions o Extended lifespan o Suitable for outdoor/industrial M2M application |
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Example Segments |
o Home alarms o Consumer electronics o Camera alert o Mobile medical |
o Vehicle tracking o Energy metering o Vending machine o Remote control o Payment terminal |
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