0805 1% 47K MARK CODE 4702 CHIP RESISTORS

BUY 0805 1% 47K MARK CODE 4702 CHIP RESISTORS https://www.utsource.net/itm/p/11534465.html

Instructions for Use:

1. Handling:

   • Handle with care to avoid damage.
   • Use appropriate ESD (Electrostatic Discharge) precautions to prevent static damage.

2. Mounting:

   • Ensure the PCB (Printed Circuit Board) is clean and free from contaminants.
   • Place the resistor on the PCB according to the marking code and orientation.
   • Use a reflow soldering process or hand soldering with a temperature-controlled soldering iron.
   • Soldering temperature should not exceed 260掳C for more than 10 seconds.

3. Storage:

   • Store in a dry, cool place away from direct sunlight.
   • Keep in original packaging until ready for use to maintain moisture protection.

4. Testing:

   • Use a multimeter to verify the resistance value before and after installation.
   • Ensure the resistance is within the specified tolerance range (卤1%).

5. Soldering Profile:

   • Preheat the PCB to 100-120掳C.
   • Apply solder paste to the pads.
   • Place the resistor on the pads.
   • Reflow solder using a profile that peaks at 230-250掳C for 3-5 seconds.

6. Inspection:

   • Visually inspect the solder joints for proper wetting and absence of bridges or voids.
   • Check for any physical damage to the resistor.

7. Troubleshooting:

   • If the resistor fails, check for correct placement, soldering issues, or damage.
   • Replace with a new resistor if necessary.