Short answer

MOARCONN automotive-grade Micro SD card connectors are qualified for −45 °C to +80 °C operation and pass ISO 16750-3 vibration testing. Parts built for consumer equipment follow the standard commercial profile. The exact limits for a specific part number are defined in its datasheet, so always confirm against the list you are designing in.

What actually decides the range

• Housing resin — LCP and PA9T keep terminal pitch stable across the range and survive 260 °C reflow.
• Contact plating — the plating stack on the mating area must resist oxidation at temperature extremes.
• Detect switch — the card-detect contact is the most temperature-sensitive element and usually sets the lower limit.

Where the wide range matters

Vehicle-mounted devices, outdoor terminals, UAVs and industrial equipment see cold soak and engine-bay heat in the same duty cycle. For those designs the −45 °C rating plus vibration survival, not the contact rating, is the gate that a connector has to pass.