In computing, PC Card is a form factor peripheral interface designed for laptop computers. Originally introduced as PCMCIA Card, the PC Card standard as well as its successors like CardBus were defined and developed by the Personal Computer Memory Card International Association (PCMCIA).

It was originally designed as a standard for memory-expansion cards for computer storage, the existence of a usable general standard for notebook peripherals led to many kinds of devices being made available based on the form factor, including network cards, modems, and hard disks.

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T-Flash Card Connector/Micro SD Card Socket Connector
Electrical performances
Contact Current Rating:0.5A
Dielectric withstanding voltage: 500 VAC for one minute
Contact resistance: 40mΩ max
Insulation resistance: 1000mΩ min
Material
Insulator: high temperature thermoplastic
Flammability Raring: UL94V-0
Contact: Copper Alloy
Cover: stainless
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SIM Card 2.54mm 6P Connector
Material
Housing : HITemp plastic UL 94V-0 Rated
Contact area: Copper Alloy
Solder area: Copper Alloy
Electrical performances
Contact resistance: 100m Ω max.
Withstanding Voltage : AC500V r. m. s
Current rating: 0.5A
dielectric strength: 500V min
Insulation resistance: 1000m Ω min
Climatic characteristics:
Operation temperature: -40 to +60
Mechanical specifications:
Mechanical lifetime: 5000 mating cycles min