====== SIM card ======
https://en.wikipedia.org/wiki/SIM_card


===== Form factors =====
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| {{:wiki:if:sim:sim_cards_formfactors.png?800&direct}}  |
| From left, full-size SIM (1FF), mini-SIM (2FF), micro-SIM (3FF), and nano-SIM (4FF) |

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^  SIM card format     ^  Introduced  ^  Standard reference                                                        ^  Length              ^  Width                 ^  Thickness            ^                                                   ^
| Full-size (1FF)      | 1991         | ISO/IEC 7810:2003, ID-1                                                    | 85.6 mm\\ (3.37 in)  | 53.98 mm\\ (2.125 in)  | 0.76 mm\\ (0.030 in)  |                                                   |
| Mini-SIM (2FF)       | 1996         | ISO/IEC 7810:2003, ID-000                                                  | 25 mm\\ (0.98 in)    | 15 mm\\ (0.59 in)      | 0.76 mm\\ (0.030 in)  | {{:wiki:if:sim:mini-sim-dims.jpg?240&direct}}     |
| Micro-SIM (3FF)      | 2003         | ETSI TS 102 221 V9.0.0, Mini-UICC                                          | 15 mm\\ (0.59 in)    | 12 mm\\ (0.47 in)      | 0.76 mm\\ (0.030 in)  | {{:wiki:if:sim:micro-sim-dims.png?128&direct}}    |
| Nano-SIM (4FF)       | early 2012   | ETSI TS 102 221 V11.0.0                                                    | 12.3 mm\\ (0.48 in)  | 8.8 mm\\ (0.35 in)     | 0.67 mm\\ (0.026 in)  | {{:wiki:if:sim:nano-sim-drawing.jpg?128&direct}}  |
| Embedded-SIM (eSIM)  | 2016         | ETSI TS 102.671 V9.0.0\\ JEDEC Design Guide 4.8, SON-8\\ GSMA SGP.22 V1.0  | —                    | —                      | —                     |                                                   |


===== Connectors =====
| PUSH-PUSH        | with ejection mechanizm | |
| PUSH-PULL        | no ejection mechanizm   | |
| HINGE            | no ejection mechanizm   | {{:wiki:if:sim:sim-hinge.jpg?128&direct}} |
| GUIDE AND HOLDER |                         | |

| KLS | https://www.klsele.com/products/connectors/Card-connectors/SIM-card-connectors.html |
| KLS | https://www.klsele.com/products/connectors/Card-connectors/Micro-SIM-card-connectors.html |
| KLS | https://www.klsele.com/products/connectors/Card-connectors/Nano-SIM-card-connectors.html |
| HSM | |
| Connfly | |
| Attend | |

===== Pinout =====
At first we need to understand SIM Pinouts:
  * 6-pin includes VCC, GND, I/O, VPP, RST, CLK
  * 8-pin includes VCC, GND, I/O, VPP, RST, CLK, SIM_PRESENCE, GND

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^ Contact No   ^ Assignment   ^ Description                 ^
| C1           | VCC          | Power Voltage.              |
| C2           | RST          | Reset Signal.               |
| C3           | CLK          | Clocking Signal.            |
| C4           | RFU          | Reserved for Feature Use.   |
| C5           | GND          | Power and Signal Ground.    |
| C6           | VPP          | Programming Voltage.        |
| C7           | I/O          | Serial Data input/output.   |
| C8           | RFU          | Reserved for Feature Use    |