Details

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BUY Directly plug 1N4148 IN4148 4148 switching diode do-35 https://www.utsource.net/itm/p/11534625.html

Parameter	Value
Type	Switching Diode
Part Number	1N4148, IN4148, 4148
Package Type	DO-35
Maximum Reverse Voltage (VR)	100 V
Maximum Forward Current (IF)	200 mA
Peak Reverse Current (IRM)	5 渭A at 25掳C
Forward Voltage Drop (VF)	1.0 V at 20 mA
Reverse Recovery Time (trr)	4 ns
Operating Temperature Range	-65掳C to +150掳C
Storage Temperature Range	-65掳C to +150掳C
Mounting Type	Through-Hole

Instructions for Use:

1. Handling Precautions:

   • Handle the diode with care to avoid static damage.
   • Ensure that the leads are not bent or twisted, as this can cause mechanical stress.

2. Soldering:

   • Preheat the PCB to reduce thermal shock.
   • Use a soldering iron with a temperature setting between 300掳C and 350掳C.
   • Solder the diode quickly to avoid overheating, which can damage the component.
   • Allow the solder joint to cool naturally without moving the diode.

3. Mounting:

   • Insert the diode into the PCB according to the polarity markings.
   • The cathode (shorter lead) should be connected to the positive side of the circuit.
   • The anode (longer lead) should be connected to the negative side of the circuit.
   • Ensure that the diode is securely mounted to prevent mechanical stress on the leads.

4. Testing:

   • After soldering, use a multimeter to check for proper connection and polarity.
   • Measure the forward voltage drop (V_F) to ensure the diode is functioning correctly.

5. Storage:

   • Store the diode in a dry, cool place away from direct sunlight.
   • Keep the diode in its original packaging until ready to use to protect it from static discharge.

6. Troubleshooting:

   • If the diode fails to conduct in the forward direction, check for proper soldering and correct polarity.
   • If the diode conducts in both directions, it may be damaged or defective. Replace the diode if necessary.

(For reference only)