Datasheets
L7818ABV by: STMicroelectronics

18V FIXED POSITIVE REGULATOR, SFM3, LEAD FREE, TO-220, 3 PIN

Part Details for L7818ABV by STMicroelectronics

Results Overview of L7818ABV by STMicroelectronics

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Applications Consumer Electronics Energy and Power Systems Renewable Energy

L7818ABV Information

L7818ABV by STMicroelectronics is a Linear Regulator IC.
Linear Regulator ICs are under the broader part category of Power Circuits.

A power circuit delivers electricity in order to operate a load for an electronic device. Power circuits include transformers, generators and switches. Read more about Power Circuits on our Power Circuits part category page.

Part Details for L7818ABV

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L7818ABV Part Data Attributes

L7818ABV STMicroelectronics
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L7818ABV STMicroelectronics 18V FIXED POSITIVE REGULATOR, SFM3, LEAD FREE, TO-220, 3 PIN
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Rohs Code Yes
Part Life Cycle Code Obsolete
Ihs Manufacturer STMICROELECTRONICS
Part Package Code SFM
Package Description LEAD FREE, TO-220, 3 PIN
Pin Count 3
Reach Compliance Code compliant
ECCN Code EAR99
HTS Code 8542.39.00.01
Samacsys Manufacturer STMicroelectronics
Adjustability FIXED
Dropout Voltage1-Nom 2 V
Input Voltage Absolute-Max 35 V
Input Voltage-Max 33 V
Input Voltage-Min 21 V
JESD-30 Code R-XSFM-T3
JESD-609 Code e3
Line Regulation-Max 0.18%
Load Regulation-Max 0.1%
Number of Functions 1
Number of Outputs 1
Number of Terminals 3
Operating Temperature TJ-Max 125 °C
Operating Temperature TJ-Min -40 °C
Output Current1-Max 1 A
Output Voltage1-Max 18.7 V
Output Voltage1-Min 17.3 V
Output Voltage1-Nom 18 V
Package Body Material UNSPECIFIED
Package Code TO-220
Package Equivalence Code SIP3,.1TB
Package Shape RECTANGULAR
Package Style FLANGE MOUNT
Peak Reflow Temperature (Cel) NOT SPECIFIED
Qualification Status Not Qualified
Regulator Type FIXED POSITIVE SINGLE OUTPUT STANDARD REGULATOR
Surface Mount NO
Technology BIPOLAR
Terminal Finish Matte Tin (Sn)
Terminal Form THROUGH-HOLE
Terminal Pitch 2.54 mm
Terminal Position SINGLE
Time@Peak Reflow Temperature-Max (s) NOT SPECIFIED
Voltage Tolerance-Max 3.89%

Alternate Parts for L7818ABV

This table gives cross-reference parts and alternative options found for L7818ABV. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of L7818ABV, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.

Part Number Manufacturer Composite Price Description Compare
MC78M15CDT/RK onsemi Check for Price 15V FIXED POSITIVE REGULATOR, PSSO2, PLASTIC, DPAK-3 L7818ABV vs MC78M15CDT/RK
L78M08ML SANYO Electric Co Ltd Check for Price Fixed Positive Standard Regulator, 8VPSFM3, TO-220, 3 PIN L7818ABV vs L78M08ML
KA7812I Fairchild Semiconductor Corporation Check for Price Fixed Positive Standard Regulator, 12VPSFM3, TO-220, 3 PIN L7818ABV vs KA7812I
5962-8777601UX Linfinity Microelectronics Check for Price Fixed Positive Standard Regulator, 12VPSFM3, L7818ABV vs 5962-8777601UX
NJM78M15A New Japan Radio Co Ltd Check for Price Fixed Positive Standard Regulator, 15VBIPolar, PSFM3, TO-220, 3 PIN L7818ABV vs NJM78M15A
ML7815A Micro Electronics Corporation Check for Price Fixed Positive Standard Regulator, 15VBIPolar, PSFM3, TO-220, 3 PIN L7818ABV vs ML7815A
LM7815CT/NOPB Texas Instruments $0.8556 1.5-A, 30-V, linear voltage regulator 3-TO-220 0 to 125 L7818ABV vs LM7815CT/NOPB
KA7815ATU Fairchild Semiconductor Corporation Check for Price Fixed Positive Standard Regulator, 15VBIPolar, PSFM3, TO-220, 3 PIN L7818ABV vs KA7815ATU
5962-8777601UC Linfinity Microelectronics Check for Price Fixed Positive Standard Regulator, 12VPSFM3, L7818ABV vs 5962-8777601UC
ML78M09A Micro Electronics Corporation Check for Price Fixed Positive Standard Regulator, 9VBIPolar, PSFM3, TO-220 L7818ABV vs ML78M09A

L7818ABV Related Parts

L7818ABV Frequently Asked Questions (FAQ)

  • The maximum input voltage that can be applied to the L7818ABV is 35V, although it's recommended to keep it below 25V for optimal performance and reliability.

  • The output voltage tolerance of the L7818ABV is typically ±4% over the entire operating temperature range. You can calculate the tolerance by multiplying the nominal output voltage (18V) by the tolerance percentage (4%).

  • The minimum input voltage required for the L7818ABV to regulate the output voltage is around 21.5V, which is the sum of the output voltage (18V) and the dropout voltage (3.5V).

  • The L7818ABV is rated for operation up to 150°C, but it's recommended to derate the output current and input voltage to ensure reliable operation at high temperatures. Consult the datasheet for more information.

  • You can protect the L7818ABV from input voltage surges and spikes by adding a transient voltage suppressor (TVS) diode or a zener diode in parallel with the input capacitor. This will help to clamp the input voltage and prevent damage to the regulator.