component
Mean Well N7812-1PV
Public Unreviewedby Glenn Jones
Non-isolated step-down switching regulator module, 12 V 1 A output, 16-36 V input, SIP-3 vertical (PV).
← Commit history
Add footprint, symbol, STEP, lbr and metadata (LEDster-TI parts)
7 files changed
+1093−35
LICENSEadded+7@@ -0,0 +1,7 @@+Adom-authored content on this page (README, page metadata, symbol edits, conversion work) is licensed CC-BY-4.0 (https://creativecommons.org/licenses/by/4.0/).++Third-party assets keep their upstream terms:++- KiCad official library (gitlab.com/kicad/libraries/kicad-footprints, kicad-packages3D and kicad-symbols, master, fetched 2026-11-02). License: CC-BY-SA 4.0 with the KiCad libraries exception (using these files in a design, and distributing the design or its manufacturing output, does not require the design to be licensed under CC-BY-SA). (symbol)+- Footprint from the owner's LEDster-TI EAGLE board (the owner's own design).+- STEP: AI-created by Adom from the Mean Well datasheet dimensions, CC-BY-4.0.
README.md+34@@ -1,3 +1,37 @@ # Mean Well N7812-1PV Non-isolated step-down switching regulator module, 12 V 1 A output, 16-36 V input, SIP-3 vertical (PV).++| | |+|---|---|+| Manufacturer | Mean Well |+| MPN | N7812-1PV |+| Category | power (DC/DC switching regulator module (78xx replacement)) |+| Package | SIP-3 vertical open frame, 2.54 mm pitch, 10.5 x 7.5 x 16 mm |+| DigiKey | [1866-N7812-1PV-ND](https://www.digikey.com/en/products/detail/mean-well-usa-inc/N7812-1PV/22119034) |+| Mouser | [709-N7812-1PV](https://www.mouser.com/ProductDetail/709-N7812-1PV) |+| Datasheet | [N78-SPEC.PDF](https://www.meanwell.com/Upload/PDF/N78/N78-SPEC.PDF) |++Distributor numbers and stock from the LEDster-TI BOM, checked 2026-11-02: DigiKey 1866-N7812-1PV-ND (stock 18), Mouser 709-N7812-1PV (stock 528), LCSC none (stock n/a).++## Files++- `n7812-1pv.kicad_mod` footprint (KiCad)+- `n7812-1pv.kicad_sym` symbol (KiCad)+- `n7812-1pv.step` 3D model (STEP, Z-up, envelope seated on z = 0, pins below the board, origin = pin 1)+- `n7812-1pv.lbr` Fusion / EAGLE library part (adom-lbr from the files above with this page's metadata; no embedded 3D, bind the STEP)++## Provenance++- `n7812-1pv.kicad_mod`: pads (THT, drill 1.0 / dia 1.5 mm, pad 1 square, 2.54 mm pitch, pin 1 at the origin, pins 2 and 3 toward -x), silkscreen and body outline copied exactly from the EAGLE package `N78121PV` in the LEDster-TI board (`survey/LEDster-TI.brd`, sha256/16 d805b7a21df47b82), EAGLE y-up converted to KiCad y-down. The 1 mm larger outline on EAGLE layer 51 became the courtyard. The 1.0 mm drill matches the Mean Well recommended hole (Ø1.0 +0.2/-0, datasheet p.4).+- `n7812-1pv.step`: AI-created from the Mean Well N78 datasheet (N78-SPEC, file date 2024-08-02, https://www.meanwell.com/Upload/PDF/N78/N78-SPEC.PDF, sha256/16 fd905376983fc0f6) p.4 "Mechanical Specification, PV type" and the p.3 "open frame size 10.5*7.5*16mm". Mean Well publishes no STEP that could be fetched here. Envelope model: one box 10.5 (W) x 7.5 (max depth) x 16.0 (H) mm, centred on the pin row in x, with the pin centre 5.48 mm from the back (PCB) face (side view: 5.80 mm to the pin edge, 0.64 mm pin) and 2.02 mm from the component-side envelope; three 0.64 x 0.64 mm pins 5.08 mm below the seating plane. Written directly in the footprint frame by a small B-rep box writer (adom boxstep.py) and checked on the step2glb OCCT service. Not a manufacturer model: the real part is an open-frame PCB with an inductor, so the box is a keep-out envelope.+- Upstream terms: KiCad symbol: KiCad official library (gitlab.com/kicad/libraries/kicad-footprints, kicad-packages3D and kicad-symbols, master, fetched 2026-11-02). License: CC-BY-SA 4.0 with the KiCad libraries exception (using these files in a design, and distributing the design or its manufacturing output, does not require the design to be licensed under CC-BY-SA).+- `n7812-1pv.kicad_sym`: KiCad `Regulator_Linear:L7812` (extends `L7805`, resolved) used as a generic 3-pin regulator symbol: pins 1 VI, 2 GND, 3 VO (renamed from IN / OUT), renamed to the MPN. Mean Well pinout (+output use, p.4): 1 +Vin, 2 GND, 3 +Vout.++## Notes++- DIFFERENCE: the EAGLE package outline puts the module 1.0 mm in front of the pin row and 6.5 mm behind it; the datasheet side view (5.80 mm from the back face to the pin edge, 7.50 mm max depth) gives 2.02 mm / 5.48 mm. The STEP follows the datasheet; the footprint silk/fab/courtyard follow the EAGLE package (as instructed). The datasheet top-view grid sketch is closer to the EAGLE reading, so the true envelope is uncertain by about 1 mm in depth: leave that margin in the case.++## License++Adom-authored content CC-BY-4.0; third-party files keep their upstream terms (see `LICENSE`).
n7812-1pv.kicad_modadded+27@@ -0,0 +1,27 @@+(footprint "N78121PV"+ (version 20241229)+ (generator "adom-ledster")+ (layer "F.Cu")+ (descr "Mean Well N78xx-1PV SIP-3 vertical, 2.54 mm. Pads and outline copied from the LEDster-TI EAGLE package N78121PV (y flipped)")+ (tags "Mean Well N78 SIP-3 regulator")+ (property "Reference" "REF**" (at -2.54 -7.75 0) (layer "F.SilkS") (effects (font (size 1 1) (thickness 0.15))))+ (property "Value" "N78121PV" (at -2.54 2.5 0) (layer "F.Fab") (effects (font (size 1 1) (thickness 0.15))))+ (attr through_hole)+ (fp_line (start -7.79 -6.5) (end 2.71 -6.5) (stroke (width 0.1) (type solid)) (layer "F.Fab"))+ (fp_line (start 2.71 -6.5) (end 2.71 1) (stroke (width 0.1) (type solid)) (layer "F.Fab"))+ (fp_line (start 2.71 1) (end -7.79 1) (stroke (width 0.1) (type solid)) (layer "F.Fab"))+ (fp_line (start -7.79 1) (end -7.79 -6.5) (stroke (width 0.1) (type solid)) (layer "F.Fab"))+ (fp_line (start -8.79 -7.5) (end 3.71 -7.5) (stroke (width 0.05) (type solid)) (layer "F.CrtYd"))+ (fp_line (start 3.71 -7.5) (end 3.71 2) (stroke (width 0.05) (type solid)) (layer "F.CrtYd"))+ (fp_line (start 3.71 2) (end -8.79 2) (stroke (width 0.05) (type solid)) (layer "F.CrtYd"))+ (fp_line (start -8.79 2) (end -8.79 -7.5) (stroke (width 0.05) (type solid)) (layer "F.CrtYd"))+ (fp_line (start -7.79 -6.5) (end 2.71 -6.5) (stroke (width 0.2) (type solid)) (layer "F.SilkS"))+ (fp_line (start 2.71 -6.5) (end 2.71 1) (stroke (width 0.2) (type solid)) (layer "F.SilkS"))+ (fp_line (start 2.71 1) (end -7.79 1) (stroke (width 0.2) (type solid)) (layer "F.SilkS"))+ (fp_line (start -7.79 1) (end -7.79 -6.5) (stroke (width 0.2) (type solid)) (layer "F.SilkS"))+ (fp_circle (center 0 1.45) (end 0 1.5) (stroke (width 0.1) (type solid)) (fill no) (layer "F.SilkS"))+ (pad "1" thru_hole rect (at 0 0) (size 1.5 1.5) (drill 1) (layers "*.Cu" "*.Mask") (remove_unused_layers no))+ (pad "2" thru_hole circle (at -2.54 0) (size 1.5 1.5) (drill 1) (layers "*.Cu" "*.Mask") (remove_unused_layers no))+ (pad "3" thru_hole circle (at -5.08 0) (size 1.5 1.5) (drill 1) (layers "*.Cu" "*.Mask") (remove_unused_layers no))+ (model "n7812-1pv.step" (offset (xyz 0 0 0)) (scale (xyz 1 1 1)) (rotate (xyz 0 0 0)))+)
n7812-1pv.kicad_symadded+198@@ -0,0 +1,198 @@+(kicad_symbol_lib+ (version 20241209)+ (generator "adom-ledster")+ (symbol "N7812-1PV"+ (pin_names+ (offset 0.254)+ )+ (exclude_from_sim no)+ (in_bom yes)+ (on_board yes)+ (in_pos_files yes)+ (duplicate_pin_numbers_are_jumpers no)+ (property "Reference" "U"+ (at -3.81 3.175 0)+ (show_name no)+ (do_not_autoplace no)+ (effects+ (font+ (size 1.27 1.27)+ )+ )+ )+ (property "Value" "N7812-1PV"+ (at 0 3.175 0)+ (show_name no)+ (do_not_autoplace no)+ (effects+ (font+ (size 1.27 1.27)+ )+ (justify left)+ )+ )+ (property "Footprint" "n7812-1pv"+ (at 0.635 -3.81 0)+ (show_name no)+ (do_not_autoplace no)+ (hide yes)+ (effects+ (font+ (size 1.27 1.27)+ (italic yes)+ )+ (justify left)+ )+ )+ (property "Datasheet" "https://www.meanwell.com/Upload/PDF/N78/N78-SPEC.PDF"+ (at 0 -1.27 0)+ (show_name no)+ (do_not_autoplace no)+ (hide yes)+ (effects+ (font+ (size 1.27 1.27)+ )+ )+ )+ (property "Description" "Non-isolated switching regulator 12 V 1 A, SIP-3 (Mean Well N7812-1PV)"+ (at 0 0 0)+ (show_name no)+ (do_not_autoplace no)+ (hide yes)+ (effects+ (font+ (size 1.27 1.27)+ )+ )+ )+ (property "ki_keywords" "Voltage Regulator 1.5A Positive"+ (at 0 0 0)+ (show_name no)+ (do_not_autoplace no)+ (hide yes)+ (effects+ (font+ (size 1.27 1.27)+ )+ )+ )+ (property "ki_fp_filters" "TO?252* TO?263* TO?220*"+ (at 0 0 0)+ (show_name no)+ (do_not_autoplace no)+ (hide yes)+ (effects+ (font+ (size 1.27 1.27)+ )+ )+ )+ (property "MPN" "N7812-1PV"+ (at 0 0 0)+ (hide yes)+ (effects+ (font+ (size 1.27 1.27)+ )+ )+ )+ (property "Manufacturer" "Mean Well"+ (at 0 0 0)+ (hide yes)+ (effects+ (font+ (size 1.27 1.27)+ )+ )+ )+ (property "Mouser" "709-N7812-1PV"+ (at 0 0 0)+ (hide yes)+ (effects+ (font+ (size 1.27 1.27)+ )+ )+ )+ (property "DigiKey" "1866-N7812-1PV-ND"+ (at 0 0 0)+ (hide yes)+ (effects+ (font+ (size 1.27 1.27)+ )+ )+ )+ (symbol "N7812-1PV_0_1"+ (rectangle+ (start -5.08 1.905)+ (end 5.08 -5.08)+ (stroke+ (width 0.254)+ (type default)+ )+ (fill+ (type background)+ )+ )+ )+ (symbol "N7812-1PV_1_1"+ (pin power_in line+ (at -7.62 0 0)+ (length 2.54)+ (name "VI"+ (effects+ (font+ (size 1.27 1.27)+ )+ )+ )+ (number "1"+ (effects+ (font+ (size 1.27 1.27)+ )+ )+ )+ )+ (pin power_in line+ (at 0 -7.62 90)+ (length 2.54)+ (name "GND"+ (effects+ (font+ (size 1.27 1.27)+ )+ )+ )+ (number "2"+ (effects+ (font+ (size 1.27 1.27)+ )+ )+ )+ )+ (pin power_out line+ (at 7.62 0 180)+ (length 2.54)+ (name "VO"+ (effects+ (font+ (size 1.27 1.27)+ )+ )+ )+ (number "3"+ (effects+ (font+ (size 1.27 1.27)+ )+ )+ )+ )+ )+ (embedded_fonts no)+ )+)
n7812-1pv.lbradded+115@@ -0,0 +1,115 @@+<?xml version="1.0" encoding="utf-8"?>+<!DOCTYPE eagle SYSTEM "eagle.dtd">+<eagle version="9.6.2">+<drawing>+<settings><setting alwaysvectorfont="no"/></settings>+<grid distance="0.1" unitdist="inch" unit="inch" style="lines" multiple="1" display="no" altdistance="0.01" altunitdist="inch" altunit="inch"/>+<layers>+<layer number="1" name="Top" color="4" fill="1" visible="yes" active="yes"/>+<layer number="16" name="Bottom" color="1" fill="1" visible="yes" active="yes"/>+<layer number="17" name="Pads" color="2" fill="1" visible="yes" active="yes"/>+<layer number="18" name="Vias" color="2" fill="1" visible="yes" active="yes"/>+<layer number="19" name="Unrouted" color="6" fill="1" visible="yes" active="yes"/>+<layer number="20" name="Dimension" color="15" fill="1" visible="yes" active="yes"/>+<layer number="21" name="tPlace" color="7" fill="1" visible="yes" active="yes"/>+<layer number="22" name="bPlace" color="7" fill="1" visible="yes" active="yes"/>+<layer number="23" name="tOrigins" color="15" fill="1" visible="yes" active="yes"/>+<layer number="24" name="bOrigins" color="15" fill="1" visible="yes" active="yes"/>+<layer number="25" name="tNames" color="7" fill="1" visible="yes" active="yes"/>+<layer number="26" name="bNames" color="7" fill="1" visible="yes" active="yes"/>+<layer number="27" name="tValues" color="7" fill="1" visible="yes" active="yes"/>+<layer number="28" name="bValues" color="7" fill="1" visible="yes" active="yes"/>+<layer number="29" name="tStop" color="7" fill="3" visible="no" active="yes"/>+<layer number="30" name="bStop" color="7" fill="6" visible="no" active="yes"/>+<layer number="31" name="tCream" color="7" fill="4" visible="no" active="yes"/>+<layer number="32" name="bCream" color="7" fill="5" visible="no" active="yes"/>+<layer number="33" name="tFinish" color="6" fill="3" visible="no" active="yes"/>+<layer number="34" name="bFinish" color="6" fill="6" visible="no" active="yes"/>+<layer number="35" name="tGlue" color="7" fill="4" visible="no" active="yes"/>+<layer number="36" name="bGlue" color="7" fill="5" visible="no" active="yes"/>+<layer number="37" name="tTest" color="7" fill="1" visible="no" active="yes"/>+<layer number="38" name="bTest" color="7" fill="1" visible="no" active="yes"/>+<layer number="39" name="tKeepout" color="4" fill="11" visible="no" active="yes"/>+<layer number="40" name="bKeepout" color="1" fill="11" visible="no" active="yes"/>+<layer number="41" name="tRestrict" color="4" fill="10" visible="no" active="yes"/>+<layer number="42" name="bRestrict" color="1" fill="10" visible="no" active="yes"/>+<layer number="43" name="vRestrict" color="2" fill="10" visible="no" active="yes"/>+<layer number="44" name="Drills" color="7" fill="1" visible="no" active="yes"/>+<layer number="45" name="Holes" color="7" fill="1" visible="no" active="yes"/>+<layer number="46" name="Milling" color="3" fill="1" visible="no" active="yes"/>+<layer number="47" name="Measures" color="7" fill="1" visible="no" active="yes"/>+<layer number="48" name="Document" color="7" fill="1" visible="yes" active="yes"/>+<layer number="49" name="Reference" color="7" fill="1" visible="yes" active="yes"/>+<layer number="91" name="Nets" color="2" fill="1" visible="yes" active="yes"/>+<layer number="92" name="Busses" color="1" fill="1" visible="yes" active="yes"/>+<layer number="93" name="Pins" color="2" fill="1" visible="no" active="yes"/>+<layer number="94" name="Symbols" color="4" fill="1" visible="yes" active="yes"/>+<layer number="95" name="Names" color="7" fill="1" visible="yes" active="yes"/>+<layer number="96" name="Values" color="7" fill="1" visible="yes" active="yes"/>+<layer number="97" name="Info" color="7" fill="1" visible="yes" active="yes"/>+<layer number="98" name="Guide" color="6" fill="1" visible="yes" active="yes"/>+</layers>+<library>+<description>Non-isolated switching regulator 12 V 1 A, SIP-3 (Mean Well N7812-1PV)</description>+<packages>+<package name="N78121PV">+ <description>3 pads, 6.6 x 1.5 mm. Mean Well N78xx-1PV SIP-3 vertical, 2.54 mm. Pads and outline copied from the LEDster-TI EAGLE package N78121PV (y flipped)</description>+ <pad name="1" x="0.0000" y="-0.0000" drill="1.0000" diameter="1.5000" shape="square"/>+ <pad name="2" x="-2.5400" y="-0.0000" drill="1.0000" diameter="1.5000" shape="round"/>+ <pad name="3" x="-5.0800" y="-0.0000" drill="1.0000" diameter="1.5000" shape="round"/>+ <circle x="0.0000" y="-1.4500" radius="0.0500" width="0.1000" layer="21"/>+ <wire x1="-7.7900" y1="6.5000" x2="2.7100" y2="6.5000" width="0.1000" layer="51"/>+ <wire x1="2.7100" y1="6.5000" x2="2.7100" y2="-1.0000" width="0.1000" layer="51"/>+ <wire x1="2.7100" y1="-1.0000" x2="-7.7900" y2="-1.0000" width="0.1000" layer="51"/>+ <wire x1="-7.7900" y1="-1.0000" x2="-7.7900" y2="6.5000" width="0.1000" layer="51"/>+ <wire x1="-7.7900" y1="6.5000" x2="2.7100" y2="6.5000" width="0.2000" layer="21"/>+ <wire x1="2.7100" y1="6.5000" x2="2.7100" y2="-1.0000" width="0.2000" layer="21"/>+ <wire x1="2.7100" y1="-1.0000" x2="-7.7900" y2="-1.0000" width="0.2000" layer="21"/>+ <wire x1="-7.7900" y1="-1.0000" x2="-7.7900" y2="6.5000" width="0.2000" layer="21"/>+ <text x="0" y="7.100" size="1.27" layer="25" align="bottom-center">>NAME</text>+ <text x="0" y="-1.600" size="1.27" layer="27" align="top-center">>VALUE</text>+</package>+</packages>+<symbols>+<symbol name="N7812-1PV">+ <description>Non-isolated switching regulator 12 V 1 A, SIP-3 (Mean Well N7812-1PV)</description>+ <wire x1="-7.62" y1="5.08" x2="7.62" y2="5.08" width="0.254" layer="94"/>+ <wire x1="7.62" y1="5.08" x2="7.62" y2="-5.08" width="0.254" layer="94"/>+ <wire x1="7.62" y1="-5.08" x2="-7.62" y2="-5.08" width="0.254" layer="94"/>+ <wire x1="-7.62" y1="-5.08" x2="-7.62" y2="5.08" width="0.254" layer="94"/>+ <text x="-3.8100" y="3.1750" size="1.27" layer="95" align="center">>NAME</text>+ <text x="0.0000" y="3.1750" size="1.27" layer="96" align="center">>VALUE</text>+ <pin name="VI" x="-12.7" y="0" length="middle" direction="pwr"/>+ <pin name="GND" x="-12.7" y="2.54" length="middle" direction="pwr"/>+ <pin name="VO" x="-12.7" y="-2.54" length="middle" direction="out"/>+</symbol>+</symbols>+<devicesets>+<deviceset name="N7812-1PV" prefix="U">+ <description>Non-isolated switching regulator 12 V 1 A, SIP-3 (Mean Well N7812-1PV)</description>+ <gates>+ <gate name="G$1" symbol="N7812-1PV" x="0" y="0"/>+ </gates>+ <devices>+ <device name="" package="N78121PV">+ <connects>+ <connect gate="G$1" pin="VI" pad="1"/>+ <connect gate="G$1" pin="GND" pad="2"/>+ <connect gate="G$1" pin="VO" pad="3"/>+ </connects>+ <technologies>+ <technology name="">+ <attribute name="MPN" value="N7812-1PV" constant="no"/>+ <attribute name="MANUFACTURER" value="Mean Well" constant="no"/>+ <attribute name="DATASHEET" value="https://www.meanwell.com/Upload/PDF/N78/N78-SPEC.PDF" constant="no"/>+ <attribute name="MOUSER_PN" value="709-N7812-1PV" constant="no"/>+ <attribute name="DIGIKEY_PN" value="1866-N7812-1PV-ND" constant="no"/>+ </technology>+ </technologies>+ </device>+ </devices>+</deviceset>+</devicesets>+</library>+</drawing>+</eagle>
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