Library Expert Naming Convention for Through-Hole Land Patterns
The land pattern naming convention uses component dimensions to derive the land pattern name.
The first 3 – 6 characters in the land pattern name describe the component family.
The first number in the land pattern name refers to the Lead Spacing or hole to hole location to insert the component lead.
All numbers that follow the Lead Spacing are component dimensions.
These characters are used as component body identifiers that precede the value and this is the priority order of the component body identifiers –
P = Pitch for components with more than two leads
W = Maximum Lead Width (or Component Lead Diameter)
L = Body Length for horizontal mounting
D = Body Diameter for round component body
T = Body Thickness for rectangular component body
H = Height for vertically mounted components
Q = Pin Quantity for components with more than two leads
R = Number of Rows for connectors
Notes:
All component body values are in millimeters and go two places to the right of the decimal point and no leading zeros.
All Complexity Levels used in the examples are “B”.
Component, Category Land Pattern Name
Capacitors, Non Polarized Axial Diameter Horizontal Mounting ........ CAPAD + Lead Spacing + W Lead Width + L Body Length + D Body Diameter
Example: CAPAD800W52L600D150
Capacitors, Non Polarized Axial Diameter; Lead Spacing 8.00; Lead Width 0.52; Body Length 6.00; Body Diameter 1.50
Capacitors, Non Polarized Axial Rectangular ......... CAPAR + Lead Spacing + W Lead Width + L Body Length + T Body thickness + H Body Height
Example: CAPAR800W52L600T50H70
Capacitors, Non Polarized Axial; Lead Spacing 8.00; Lead Width 0.52; Body Length 6.00; Body Thickness 0.50; Body Height 0.70
Capacitors, Non Polarized Axial Diameter Vertical Mounting ......... CAPADV + Lead Spacing + W Lead Width + L Body Length + D Body Diameter
Example: CAPADV300W52L600D150
Capacitors, Non Polarized Axial; Lead Spacing 3.00; Lead Width 0.52; Body Length 6.00; Body Diameter 1.50mm
Capacitors, Non Polarized Axial Rect. Vert. Mtg. CAPARV + Lead Spacing + W Lead Width + L Body Length + T Body Thickness + H Body Height
Example: CAPARV300W52L600T50H70
Capacitors, Non Polarized Axial Rect. Vertical; Lead Spacing 8.00; Lead Width 0.52; Body Length 6.00; Body Thickness 0.50; Body Height 0.70
Capacitors, Non Polarized Radial Diameter .......................................CAPRD + Lead Spacing + W Lead Width + D Body Diameter + H Body Height
Example: CAPRD200W52D300H550
Capacitors, Non Polarized Radial Diameter; lead spacing 2.00; lead width 0.52; Body Diameter 3.00; Height 5.50
Capacitors, Non Polarized Radial Rectangular ....... CAPRR + Lead Spacing + W Lead Width + L Body Length + T Body thickness + H Body Height
Example: CAPRR200W52L50T70H550
Capacitors, Non Polarized Radial Rectangular; lead spacing 2.00; lead width 0.52; Body Length 0.50; Body thickness 0.70; Height 5.50
Capacitors, Non Polarized Radial Disk Button ........ CAPRB + Lead Spacing + W Lead Width + L Body Length + T Body thickness + H Body Height
Example: CAPRB200W52L50T70H550
Capacitors, Non Polarized Radial Rectangular; lead spacing 2.00; lead width 0.52; Body Length 0.50; Body thickness 0.70; Height 5.50
Capacitors, Polarized Axial Diameter Horizontal Mounting ............. CAPPAD + Lead Spacing + W Lead Width + L Body Length + D Body Diameter
Example: CAPPAD800W52L600D150
Capacitors, Polarized Axial Diameter; Lead Spacing 8.00; Lead Width 0.52; Body Length 6.00; Body Diameter 1.50
Capacitor, Polarized Radial Diameter ............................................. CAPPRD + Lead Spacing + W Lead Width + D Body Diameter + H Body Height
Example: CAPPRD200W52D300H550
Capacitors, Polarized Radial Diameter; lead spacing 2.00; lead width 0.52; Body Diameter 3.00; Height 5.50
Diodes, Axial Diameter Horizontal Mounting .......................................DIOAD + Lead Spacing + W Lead Width + L Body Length + D Body Diameter
Example: DIOAD800W52L600D150
Diodes, Non Polarized Axial Diameter; Lead Spacing 8.00; Lead Width 0.52; Body Length 6.00; Body Diameter 1.50
Diodes, Axial Diameter Vertical Mounting ....................................... DIOADV + Lead Spacing + W Lead Width + L Body Length + D Body Diameter
Example: DIOADV300W52L600D150
Diodes, Non Polarized Axial; Lead Spacing 8.00; Lead Width 0.52; Body Length 6.00; Body Diameter 1.50
Dual-In-Line Packages .................................. DIP + Lead Span + W Lead Width + P Pin Pitch + L Body Length + H Component Height + Q Pin Qty
Example: DIP762W52P254L1905H508Q14
Dual-In-Line Package: Lead Span 7.62; Lead Width 0.52; Pin Pitch 2.54; Body Length 19.05; Body Height 5.08; Pin Qty 14
Dual-In-Line Sockets ................................... DIPS + Lead Span + W Lead Width + P Pin Pitch + L Body Length + H Component Height + Q Pin Qty
Example: DIPS762W52P254L1905H508Q14
Dual-In-Line Package Socket: Lead Span 7.62; Lead Width 0.52; Pin Pitch 2.54; Body Length 19.05; Body Height 5.08; Pin Qty 14