Free Electronics 3D Models

Electronic components, enclosures and boards. Every file here is public domain: open it in your browser, then download it and use it for anything.

3342 3D parts · STEP, STL, SketchUp, 3MF, OBJ, glTF, IFC, Rhino and more · public domain

248 3D parts in Electronics & PCB · Clear all

  • Axial resistor, 7.62 mm lead pitchstepRotate in 3D
    Axial resistor, 7.62 mm lead pitch

    Axial resistor, 7.62 mm lead pitch, modeled from published dimensions. Overall 8.2 x 2.6 x 6.3 mm. Key dimensions: body length 6.3 mm; body diameter 2.5 mm; lead pitch 7.6 mm; lead diameter 0.6 mm; value illustrated ohm 10000. Original nominal component body for PCB fit and visualization. Origin is lead 1 at board surface Z=0; pins extend below the PCB. Included original KiCad footprint references the STEP at scale 1. No electrical symbol or performance rating is implied. TO-92 in-line lead grid and face outline follow the KiCad source footprint; TO-220 uses representative mid-range Vishay TO-220AB dimensions. Resistor/capacitor/LED bodies are explicit generic library sizes. Match the selected footprint and manufacturer package before fabrication. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

  • Axial resistor, 10.16 mm lead pitchstepRotate in 3D
    Axial resistor, 10.16 mm lead pitch

    Axial resistor, 10.16 mm lead pitch, modeled from published dimensions. Overall 10.8 x 2.6 x 6.3 mm. Key dimensions: body length 6.3 mm; body diameter 2.5 mm; lead pitch 10.2 mm; lead diameter 0.6 mm; value illustrated ohm 10000. Original nominal component body for PCB fit and visualization. Origin is lead 1 at board surface Z=0; pins extend below the PCB. Included original KiCad footprint references the STEP at scale 1. No electrical symbol or performance rating is implied. TO-92 in-line lead grid and face outline follow the KiCad source footprint; TO-220 uses representative mid-range Vishay TO-220AB dimensions. Resistor/capacitor/LED bodies are explicit generic library sizes. Match the selected footprint and manufacturer package before fabrication. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

  • LED, 5 mmstepRotate in 3D
    LED, 5 mm

    LED, 5 mm, modeled from published dimensions. Overall 5.4 x 5.8 x 12.6 mm. Key dimensions: lens diameter 5 mm; body height 8.6 mm; lead pitch 2.5 mm; flat side lead 1 cathode side; lead section 0.5 mm. Original nominal component body for PCB fit and visualization. Origin is lead 1 at board surface Z=0; pins extend below the PCB. Included original KiCad footprint references the STEP at scale 1. No electrical symbol or performance rating is implied. TO-92 in-line lead grid and face outline follow the KiCad source footprint; TO-220 uses representative mid-range Vishay TO-220AB dimensions. Resistor/capacitor/LED bodies are explicit generic library sizes. Match the selected footprint and manufacturer package before fabrication. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

  • LED, 3 mmstepRotate in 3D
    LED, 3 mm

    LED, 3 mm, modeled from published dimensions. Overall 3.4 x 3.8 x 8.5 mm. Key dimensions: lens diameter 3 mm; body height 4.5 mm; lead pitch 2.5 mm; flat side lead 1 cathode side; lead section 0.5 mm. Original nominal component body for PCB fit and visualization. Origin is lead 1 at board surface Z=0; pins extend below the PCB. Included original KiCad footprint references the STEP at scale 1. No electrical symbol or performance rating is implied. TO-92 in-line lead grid and face outline follow the KiCad source footprint; TO-220 uses representative mid-range Vishay TO-220AB dimensions. Resistor/capacitor/LED bodies are explicit generic library sizes. Match the selected footprint and manufacturer package before fabrication. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

  • Electrolytic capacitor, 8 mmstepRotate in 3D
    Electrolytic capacitor, 8 mm

    Electrolytic capacitor, 8 mm, modeled from published dimensions. Overall 8 x 8 x 16 mm. Key dimensions: lead pitch 3.5 mm; lead diameter 0.5 mm. Original nominal component body for PCB fit and visualization. Origin is lead 1 at board surface Z=0; pins extend below the PCB. Included original KiCad footprint references the STEP at scale 1. No electrical symbol or performance rating is implied. TO-92 in-line lead grid and face outline follow the KiCad source footprint; TO-220 uses representative mid-range Vishay TO-220AB dimensions. Resistor/capacitor/LED bodies are explicit generic library sizes. Match the selected footprint and manufacturer package before fabrication. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

  • Electrolytic capacitor, 5 mmstepRotate in 3D
    Electrolytic capacitor, 5 mm

    Electrolytic capacitor, 5 mm, modeled from published dimensions. Overall 5 x 5 x 15 mm. Key dimensions: lead pitch 2 mm; lead diameter 0.5 mm. Original nominal component body for PCB fit and visualization. Origin is lead 1 at board surface Z=0; pins extend below the PCB. Included original KiCad footprint references the STEP at scale 1. No electrical symbol or performance rating is implied. TO-92 in-line lead grid and face outline follow the KiCad source footprint; TO-220 uses representative mid-range Vishay TO-220AB dimensions. Resistor/capacitor/LED bodies are explicit generic library sizes. Match the selected footprint and manufacturer package before fabrication. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

  • Ceramic disc capacitor, 5 mmstepRotate in 3D
    Ceramic disc capacitor, 5 mm

    Ceramic disc capacitor, 5 mm, modeled from published dimensions. Overall 5 x 1.8 x 9.5 mm. Key dimensions: disc diameter 5 mm; thickness 1.8 mm; lead pitch 2.5 mm. Original nominal component body for PCB fit and visualization. Origin is lead 1 at board surface Z=0; pins extend below the PCB. Included original KiCad footprint references the STEP at scale 1. No electrical symbol or performance rating is implied. TO-92 in-line lead grid and face outline follow the KiCad source footprint; TO-220 uses representative mid-range Vishay TO-220AB dimensions. Resistor/capacitor/LED bodies are explicit generic library sizes. Match the selected footprint and manufacturer package before fabrication. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

  • 80 mm finned heat sinkstepRotate in 3D
    80 mm finned heat sink

    80 mm finned heat sink, modeled from published dimensions. Overall 80 x 80 x 30 mm. Key dimensions: base 3 mm; fin 1.4 mm; fin count 13; mount pitch 71.5 mm; mount hole 4.3 mm. Original unbranded housing, rotor and fin designs. Published Noctua form factors and mounting-center grids are used as dimensional references only; 4.3 mm mounting holes and fin dimensions are explicit nominal library choices. No vendor blade geometry copied. Cables, motor internals and bearings omitted. No airflow, acoustic, thermal or electrical performance claim. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

  • 40 mm finned heat sinkstepRotate in 3D
    40 mm finned heat sink

    40 mm finned heat sink, modeled from published dimensions. Overall 40 x 40 x 20 mm. Key dimensions: base 3 mm; fin 1.4 mm; fin count 8; mount pitch 32 mm; mount hole 4.3 mm. Original unbranded housing, rotor and fin designs. Published Noctua form factors and mounting-center grids are used as dimensional references only; 4.3 mm mounting holes and fin dimensions are explicit nominal library choices. No vendor blade geometry copied. Cables, motor internals and bearings omitted. No airflow, acoustic, thermal or electrical performance claim. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

  • 120 mm finned heat sinkstepRotate in 3D
    120 mm finned heat sink

    120 mm finned heat sink, modeled from published dimensions. Overall 120 x 120 x 40 mm. Key dimensions: base 3 mm; fin 1.4 mm; fin count 18; mount pitch 105 mm; mount hole 4.3 mm. Original unbranded housing, rotor and fin designs. Published Noctua form factors and mounting-center grids are used as dimensional references only; 4.3 mm mounting holes and fin dimensions are explicit nominal library choices. No vendor blade geometry copied. Cables, motor internals and bearings omitted. No airflow, acoustic, thermal or electrical performance claim. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

  • 80 mm axial cooling fanstepRotate in 3D
    80 mm axial cooling fan

    80 mm axial cooling fan, modeled from published dimensions. Overall 80 x 80 x 25 mm. Key dimensions: mount pitch 71.5 mm; mount hole 4.3 mm; rotor diameter 73.6 mm; blade count 7. Original unbranded housing, rotor and fin designs. Published Noctua form factors and mounting-center grids are used as dimensional references only; 4.3 mm mounting holes and fin dimensions are explicit nominal library choices. No vendor blade geometry copied. Cables, motor internals and bearings omitted. No airflow, acoustic, thermal or electrical performance claim. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

  • 40 mm axial cooling fanstepRotate in 3D
    40 mm axial cooling fan

    40 mm axial cooling fan, modeled from published dimensions. Overall 40 x 40 x 10 mm. Key dimensions: mount pitch 32 mm; mount hole 4.3 mm; rotor diameter 36.8 mm; blade count 7. Original unbranded housing, rotor and fin designs. Published Noctua form factors and mounting-center grids are used as dimensional references only; 4.3 mm mounting holes and fin dimensions are explicit nominal library choices. No vendor blade geometry copied. Cables, motor internals and bearings omitted. No airflow, acoustic, thermal or electrical performance claim. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

  • 120 mm axial cooling fanstepRotate in 3D
    120 mm axial cooling fan

    120 mm axial cooling fan, modeled from published dimensions. Overall 120 x 120 x 25 mm. Key dimensions: mount pitch 105 mm; mount hole 4.3 mm; rotor diameter 110.4 mm; blade count 7. Original unbranded housing, rotor and fin designs. Published Noctua form factors and mounting-center grids are used as dimensional references only; 4.3 mm mounting holes and fin dimensions are explicit nominal library choices. No vendor blade geometry copied. Cables, motor internals and bearings omitted. No airflow, acoustic, thermal or electrical performance claim. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

  • PIR motion sensor modulestepRotate in 3D
    PIR motion sensor module

    PIR motion sensor module, modeled from published dimensions. Overall 32.3 x 24 x 27.1 mm. Key dimensions: nominal lens diameter 23 mm; header pitch 2.5 mm. Original PIR module layout using the Adafruit #189 32.34 x 24.03 mm board-size reference. Lens, mounting pattern, trimmers and reverse components are nominal reconstructions. Decorative latitude bands are not a Fresnel optical prescription. No detection-angle or electronics performance simulation. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

  • HC-SR04 ultrasonic modulestepRotate in 3D
    HC-SR04 ultrasonic module

    HC-SR04 ultrasonic module, modeled from published dimensions. Overall 45 x 20 x 22.6 mm. Key dimensions: transducer diameter 16 mm; transducer center pitch 26 mm; header pitch 2.5 mm. Elecfreaks HC-SR04 datasheet hosted by SparkFun supplies the nominal 45 x 20 x 15 mm module class. Original reconstructed cans, grille, mounting holes and reverse components. Added straight header increases depth beyond the source bare-module envelope. Undimensioned mounting centers and can positions are nominal choices; check the actual board revision for enclosure fit. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

  • DHT22 temperature / humidity sensorstepRotate in 3D
    DHT22 temperature / humidity sensor

    DHT22 temperature / humidity sensor, modeled from published dimensions. Overall 15.1 x 7.7 x 33.6 mm. Key dimensions: height with tab 25.1 mm; mount hole 3 mm; lead pitch nominal 2.5 mm; lead length 8.5 mm. Aosong DHT22 drawing supplies 15.1 x 7.7 x 20 mm housing, 25.1 mm ear height, 3 mm mounting hole, 8.5 mm leads and 0.5 mm lead width. Nominal 2.5 mm lead pitch is reconstructed from the 2.0 mm inter-lead space plus 0.5 mm lead width. Vent pattern, ear-hole center and internal cavity are reconstructed; electronics omitted. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

  • 0.96-inch OLED breakoutstepRotate in 3D
    0.96-inch OLED breakout

    0.96-inch OLED breakout, modeled from published dimensions. Overall 38.1 x 28.4 x 12 mm. Key dimensions: header pitch 2.5 mm. Original dimensional reconstruction of the Adafruit original-version 0.96-inch breakout format: 1.50 x 1.12 inch PCB, mounting centers at the 0.12/1.38 inch X and 0.12/1.00 inch Y datums shown in the fabrication print. 3.2 mm mounting drill, panel placement, small components and housing detail are nominal. No logos or electrical design copied. Display text is illustrative. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

  • 7-inch LCD panel with ribbonstepRotate in 3D
    7-inch LCD panel with ribbon

    7-inch LCD panel with ribbon, modeled from published dimensions. Overall 164.9 x 146.1 x 3.5 mm. Key dimensions: fpc pitch 0.5 mm. Bare 7-inch LCD panel, using Waveshare-hosted 164.9 x 100 x 3.5 mm panel envelope, 153.84 x 85.63 mm active area and ribbon dimensions. Active-area centering, simplified flex outline and contact arrangement are nominal; separate HDMI controller PCB and touch glass are not included. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

  • 16 x 2 character LCDstepRotate in 3D
    16 x 2 character LCD

    16 x 2 character LCD, modeled from published dimensions. Overall 80 x 36 x 19.5 mm. Key dimensions: header pitch 2.5 mm. PCB envelope, 75 x 31 mm mounting grid with 2.5 mm drills, 16-pin 2.54 mm grid and bezel/view area follow Newhaven NHD-0216K1Z drawing. Original reconstructed depth stack, nominal reverse-side controller and illustrative text. Supplied header increases the bare-module depth; electronics and display timing are not modeled. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

  • Miniature SPDT toggle switchstepRotate in 3D
    Miniature SPDT toggle switch

    Miniature SPDT toggle switch, modeled from published dimensions. Overall 12.7 x 9 x 30.9 mm. Key dimensions: mount thread M6 x 0.75 nominal; lug pitch 4.7 mm. Original reconstructed component. Tactile switch uses the C&K 6 mm class and 6.5 x 4.5 mm pin grid; rotary encoder uses ALPS EC11E drawing 2 principal envelope/pin-grid dimensions. Toggle and rocker are original nominal library designs. Small contours, internal switch parts and terminal transitions are simplified; no electrical ratings are assigned. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

  • 6 mm tactile switchstepRotate in 3D
    6 mm tactile switch

    6 mm tactile switch, modeled from published dimensions. Overall 7 x 6 x 7.8 mm. Key dimensions: total button height 4.3 mm. Original reconstructed component. Tactile switch uses the C&K 6 mm class and 6.5 x 4.5 mm pin grid; rotary encoder uses ALPS EC11E drawing 2 principal envelope/pin-grid dimensions. Toggle and rocker are original nominal library designs. Small contours, internal switch parts and terminal transitions are simplified; no electrical ratings are assigned. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

  • Panel rocker switchstepRotate in 3D
    Panel rocker switch

    Panel rocker switch, modeled from published dimensions. Overall 21 x 15 x 21.8 mm. Key dimensions: blade width 4.8 mm. Original reconstructed component. Tactile switch uses the C&K 6 mm class and 6.5 x 4.5 mm pin grid; rotary encoder uses ALPS EC11E drawing 2 principal envelope/pin-grid dimensions. Toggle and rocker are original nominal library designs. Small contours, internal switch parts and terminal transitions are simplified; no electrical ratings are assigned. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

  • EC11-style rotary encoder with push switchstepRotate in 3D
    EC11-style rotary encoder with push switch

    EC11-style rotary encoder with push switch, modeled from published dimensions. Overall 12.8 x 14.8 x 28.4 mm. Key dimensions: shaft diameter 6 mm; shaft from front 20 mm; signal pin pitch 2.5 mm; board lug spacing 12.5 mm. Original reconstructed component. Tactile switch uses the C&K 6 mm class and 6.5 x 4.5 mm pin grid; rotary encoder uses ALPS EC11E drawing 2 principal envelope/pin-grid dimensions. Toggle and rocker are original nominal library designs. Small contours, internal switch parts and terminal transitions are simplified; no electrical ratings are assigned. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

  • USB-C receptaclestepRotate in 3D
    USB-C receptacle

    USB-C receptacle, modeled from published dimensions. Overall 9.3 x 10 x 4.4 mm. Key dimensions: contact pitch 0.5 mm. Original reconstructed connector model with explicitly stated nominal layout dimensions. USB-C mouth and shell datums follow the Same Sky UJ31-CH-G1 drawing; other connector envelopes are generic library choices. Contacts, shell tabs and solder tails are simplified. This is not a manufacturer-approved PCB footprint or a connector interoperability certification. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

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