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Chip voltage regulator module L7812.
ChipL7812is anlinear voltage regulatorpositive polarity in a TO-220 package. It is designed for load currentup to 1.5 Awith output voltage12 in.
The input power supply can be asDC and AC, due to the presence of a diode bridge of four diodes at the input of the module, as well as a filtering capacitor.
The L78XX series stabilizers useinternal overcurrent protection and overheating protection, making a power source based on it virtually indestructible.
Please note that an output current of 1.5A with a long-term load can be provided only with a small difference between the input and output voltages, power from an AC source, and also subject to the temperature regime of the microcircuit. You can get acquainted with the characteristics of the microcircuit in detail by reading on itdatasheet... It is also not recommended to turn on the stabilizer without load at high supply voltage.
The output of the stabilizer to the terminal block is duplicated on a 2.54mm pin strip for easy connection using breadboard jumpers.
Main characteristics:
Output voltage, Uout .: 12V DC
Input voltage range, Uin .: 16..35V DC, 12..24V AC
Maximum load current, Imax: 1.5 A
Self-consumption current: ≤ 5 mA
Output voltage setting error: 5%
Short circuit protection: yes
Overheating protection: yes
Working temperature: 0..80°C
Dimensions of the assembled device (LxWxH): 50x26x25 mm
Typical circuit diagram for switching on the L78xx tsabilizers:
(component ratings may not match)
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The data presented in the product description are for reference only and may differ from those indicated by the manufacturer.
To carry out technical calculations and obtain the exact parameters of the goods, use the datasheets from the manufacturer's website.
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