Q1: What is an electronic connector?
Electronic connectors are components used to connect circuits (such as wires, PCB boards, and device ports), achieving signal transmission, current conduction, or mechanical fixation. Common types include: board-to-board (BTB), wire-to-board (WTB), circular/rectangular connectors, RF connectors, etc.

Q2: How to choose the right connector?
Current/Voltage: For high current, select a large terminal.
Signal type: High-frequency signals require impedance matching.
Waterproof and dustproof: IP rating
Temperature resistance: -50℃ to 125℃
Mechanical properties: Number of insertions and withdrawals, vibration resistance.

Q3: How to avoid false soldering of pins when soldering connectors?
Use a temperature-controlled soldering station.
Solder the pins in advance and add flux to the PCB pads.

Q4: How to troubleshoot poor contact of connectors?
Check whether the terminals are oxidized.
Test whether the insertion and extraction force is too loose.
Use a multimeter to test the on-off/contact resistance