Details

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BUY 1N5221BRL https://www.utsource.net/itm/p/12610116.html

Parameter	Value	Unit
Type	Zener Diode	-
Zener Voltage (Vz)	4.7	V
Tolerance	卤0.5%	%
Power Dissipation (Pz)	500	mW
Maximum Current (Iz)	10	mA
Operating Temperature	-65 to +150	掳C
Reverse Current (Ir)	100	nA
Package	DO-35 (SOD80C)	-

Instructions for Use:

1. Mounting:

   • Ensure that the diode is mounted with adequate heat dissipation if operating near its maximum power rating.
   • Use appropriate mounting techniques to avoid mechanical stress on the leads.

2. Polarity:

   • Connect the cathode (shorter lead or marked band) to the positive side of the circuit.
   • Connect the anode (longer lead) to the negative side of the circuit.

3. Operating Conditions:

   • Do not exceed the maximum current (Iz) and power dissipation (Pz) ratings.
   • Ensure the operating temperature stays within the specified range (-65掳C to +150掳C).

4. Storage:

   • Store in a dry, cool place to prevent moisture damage.
   • Handle with care to avoid damaging the leads or the body of the diode.

5. Testing:

   • Use a multimeter to test the diode before installation.
   • Measure the forward voltage drop (typically around 0.7V) and ensure the reverse breakdown voltage matches the specified Zener voltage.

6. Soldering:

   • Preheat the PCB to reduce thermal shock.
   • Use a soldering iron with a temperature setting appropriate for the diode (typically 300掳C to 350掳C).
   • Avoid overheating by completing the soldering process quickly.

7. Safety:

   • Always wear appropriate safety gear when handling and soldering components.
   • Follow all local regulations and guidelines for handling electronic components.

(For reference only)