Details

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BUY L7812 CHINESE ORIGINAL https://www.utsource.net/itm/p/11304632.html

Parameter	Value	Unit
Output Voltage	12	V
Input Voltage	7 to 40	V
Output Current	1.5	A
Line Regulation	0.01	%
Load Regulation	1	%
Dropout Voltage	2.5	V
Quiescent Current	5	mA
Operating Temp.	-40 to 125	掳C
Storage Temp.	-65 to 150	掳C
Package	TO-220

Instructions for Using L7812 Chinese Original

1. Input Connection:

   • Connect the input voltage to the "IN" pin of the L7812.
   • Ensure the input voltage is within the range of 7V to 40V.

2. Output Connection:

   • Connect the load to the "OUT" pin of the L7812.
   • The output voltage will be regulated to 12V.

3. Ground Connection:

   • Connect the ground (GND) pin to the common ground of your circuit.

4. Heat Sink:

   • For applications where the L7812 will be dissipating more than 1W of power, use a heat sink to ensure proper cooling.
   • The power dissipation can be calculated using the formula: ( P = (V_ - V_) times I_ ).

5. Capacitors:

   • It is recommended to place a 0.33渭F capacitor between the input and ground to filter out noise.
   • A 0.1渭F capacitor between the output and ground can help stabilize the output voltage.

6. Mounting:

   • Mount the L7812 on a PCB or a heatsink using the appropriate mounting hardware.
   • Ensure good thermal contact with the heatsink if used.

7. Safety:

   • Do not exceed the maximum input voltage or output current ratings.
   • Avoid short circuits on the output to prevent damage to the regulator.

8. Storage:

   • Store the L7812 in a dry, cool place away from direct sunlight and corrosive environments.

(For reference only)