SG 7812CK LM340K Fixed 1A 12V Positive Voltage Regulator 1974 OM0143C
SG 7812CK LM340K Fixed 1A 12V Positive Voltage Regulator 1974 OM0143C - Image 2
SG 7812CK LM340K Fixed 1A 12V Positive Voltage Regulator 1974 OM0143C - Image 3

SG 7812CK LM340K Fixed 1A 12V Positive Voltage Regulator 1974 OM0143C

£25.00

2 in stock

SKU: OM0143C Category:

Description

WE ARE RICH ELECTRONICS

WE PURCHASE SURPLUS

ELECTRONIC COMPONENTS

AND EQUIPMENT!

For sale here we have the above…

1 Piece

SG was the logo used by what later became SGS

A TO-3 metal-can power semiconductor marked with “SG” or featuring an “SG” logo was manufactured by SGS (Società Generale Semiconduttori), an Italian electronics company founded in 1957. It later became SGS-ATES in the 1970s and eventually merged with Thomson Semiconducteurs in 1987 to become SGS-Thomson Microelectronics (now known globally as STMicroelectronics).

3-Terminal Negative Voltage Regulator

Unusually the part no.’s 7812CK and LM340K-12 are both shown on this part.
It is more usual to have one or the other, however they have identical specifications…
Both are12V positive voltage regulators in a metal TO-3 package, capable of delivering 1A to 1.5A of output current. They share identical electrical functions, with the “7812” and “340-12” designating the 12-volt fixed output, and “K / CK” specifying the heavy-duty hermetic metal package.
Key Specifications
  • Output Voltage: +12V DC
  • Output Current: Up to 1.0A – 1.5A (with proper heat sinking)
  • Package Type: TO-3 (steel metal can, high thermal dissipation)
  • Protection Features: Internal thermal overload, short-circuit limit, and safe-area compensation
  • Input Voltage Max: Up to 35V DC
Pinout Configuration (TO-3 Case)
  • Pin 1: Input (Voltage In)
  • Pin 2: Output (Voltage Out)
  • Case / Body: Ground (Common)
Features
  • Internal thermal overload protection
  • No external components required
  • Output transistor safe area protection
  • Internal short circuit current limit
    Through Hole
    TO-3
    1 Output
    Positive
    12 V
    2.4 A
    Fixed
    35 V
    7.5 V
    0 C
    + 125 C
    50 mV
    50 mV

These 1974 vintage parts are now obsolete for generic datasheet on the LM340K or the 7812CK search either part no.

Or go directly to…

https://www.alldatasheet.com/datasheet-pdf/view/462632/TI1/LM340K-12.html

PLEASE NOTE!

These parts came to us as part of a lot of surplus stock from a large Milspec type Co. and have been kept in storage for some time, we have therefore classified them as ‘new other’. They are however pristine, the photographs are representative of their excellent condition, being of some of our actual stock, and, as with all our products they come with a full guarantee. 

If you have similar items to this, or indeed any electronic components that are surplus to requirements please contact us with details.

Additional information

Brand

MPN

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