level-a-land-pattern-construction

IPC-7251 LEVEL A LAND PATTERN CONSTRUCTION Max L d Finished Mounted Internal Layer Opposite Solder Mask T & Assembly T & Plane Clearance Th l OD Thermal Thermal 4 S k Naming C ti f Naming C ti f AppNote 10835 Created by Mentor Graphics using IPC‐7251 Level A Level A (Maximum) Values for Plated Through Hole Component Padstacks Padstack Names Level B Level C All dimensions are diameters in millimeters IPC-7251 PTH Padstack Table for Levels A, B & C Max Max Max Round Lead Rectangle Lead Square Lead A P P N O T E S SM Lead Dia Finished Hole Dia Mounted Land Layer Land Dia Opposite Land Top & Bottom Top & Bottom Clearance "Anti-pad" Dia Thermal OD Thermal ID 4 Spoke Width Convention for Circular Land Convention for Square Land 0.10 0.35 1.05 1.05 1.05 1.05 1.05 1.35 1.35 0.95 0.16 c105h35 s105h35 0.15 0.40 1.10 1.10 1.10 1.10 1.10 1.40 1.40 1.00 0.17 c110h40 s110h40 0.20 0.45 1.15 1.15 1.15 1.15 1.15 1.45 1.45 1.05 0.17 c115h45 s115h45 0.25 0.50 1.20 1.20 1.20 1.20 1.20 1.50 1.50 1.10 0.18 c120h50 s120h50 0.30 0.55 1.25 1.25 1.25 1.25 1.25 1.55 1.55 1.15 0.19 c125h55 s125h55 0.35 0.60 1.30 1.30 1.30 1.30 1.30 1.60 1.60 1.20 0.20 c130h60 s130h60 0.40 0.65 1.35 1.35 1.35 1.35 1.35 1.65 1.65 1.25 0.20 c135h65 s135h65 0.45 0.70 1.40 1.40 1.40 1.40 1.40 1.70 1.70 1.30 0.21 c140h70 s140h70 0.50 0.75 1.45 1.45 1.45 1.45 1.45 1.75 1.75 1.35 0.22 c145h75 s145h75 0.55 0.80 1.50 1.50 1.50 1.50 1.50 1.80 1.80 1.40 0.23 c150h80 s150h80 0.60 0.85 1.55 1.55 1.55 1.55 1.55 1.85 1.85 1.45 0.23 c155h85 s155h85 0.65 0.90 1.60 1.60 1.60 1.60 1.60 1.90 1.90 1.50 0.24 c160h90 s160h90 0.70 0.95 1.65 1.65 1.65 1.65 1.65 1.95 1.95 1.55 0.25 c165h95 s165h95 0.75 1.00 1.70 1.70 1.70 1.70 1.70 2.00 2.00 1.60 0.26 c170h100 s170h100 0.80 1.05 1.75 1.75 1.75 1.75 1.75 2.05 2.05 1.65 0.26 c175h105 s175h105 0.85 1.10 1.80 1.80 1.80 1.80 1.80 2.10 2.10 1.70 0.27 c180h110 s180h110 Max Max Max Round Lead Rectangle Lead Square Lead A P P N O T E S SM Copyright 2010 IPC - Mentor Graphics Corp. 7/19/2010 IPC-7251 LEVEL A LAND PATTERN CONSTRUCTION Max Lead Dia Finished Hole Dia Mounted Land Internal Layer Land Dia Opposite Land Solder Mask Top & Bottom Assembly Top & Bottom Plane Clearance "Anti-pad" Dia Thermal OD Thermal ID Thermal 4 Spoke Width Naming Convention for Circular Land Naming Convention for Square Land Level A (Maximum) Values for Plated Through Hole Component Padstacks Padstack Names All dimensions are diameters in millimeters 0.90 1.15 1.85 1.85 1.85 1.85 1.85 2.15 2.15 1.75 0.28 c185h115 s185h115 0.95 1.20 1.90 1.90 1.90 1.90 1.90 2.20 2.20 1.80 0.29 c190h120 s190h120 1.00 1.25 1.95 1.95 1.95 1.95 1.95 2.25 2.25 1.85 0.29 c195h125 s195h125 1.05 1.30 2.00 2.00 2.00 2.00 2.00 2.30 2.30 1.90 0.30 c200h130 s200h130 1.10 1.35 2.05 2.05 2.05 2.05 2.05 2.35 2.35 1.95 0.31 c205h135 s205h135 1.15 1.40 2.10 2.10 2.10 2.10 2.10 2.40 2.40 2.00 0.32 c210h140 s210h140 Copyright 2010 IPC - Mentor Graphics Corp. 7/19/2010 IPC-7251 LEVEL A LAND PATTERN CONSTRUCTION Max Lead Dia Finished Hole Dia Mounted Land Internal Layer Land Dia Opposite Land Solder Mask Top & Bottom Assembly Top & Bottom Plane Clearance "Anti-pad" Dia Thermal OD Thermal ID Thermal 4 Spoke Width Naming Convention for Circular Land Naming Convention for Square Land Level A (Maximum) Values for Plated Through Hole Component Padstacks Padstack Names All dimensions are diameters in millimeters 1.20 1.45 2.15 2.15 2.15 2.15 2.15 2.45 2.45 2.05 0.32 c215h145 s215h145 1.25 1.50 2.20 2.20 2.20 2.20 2.20 2.50 2.50 2.10 0.33 c220h150 s220h150 1.30 1.55 2.25 2.25 2.25 2.25 2.25 2.55 2.55 2.15 0.34 c225h155 s225h155 1.35 1.60 2.30 2.30 2.30 2.30 2.30 2.60 2.60 2.20 0.35 c230h160 s230h160 1.40 1.65 2.35 2.35 2.35 2.35 2.35 2.65 2.65 2.25 0.35 c235h165 s235h165 1.45 1.70 2.40 2.40 2.40 2.40 2.40 2.70 2.70 2.30 0.36 c240h170 s240h170 1.50 1.75 2.45 2.45 2.45 2.45 2.45 2.75 2.75 2.35 0.37 c245h175 s245h175 1.55 1.80 2.50 2.50 2.50 2.50 2.50 2.80 2.80 2.40 0.38 c250h180 s250h180 1.60 1.85 2.55 2.55 2.55 2.55 2.55 2.85 2.85 2.45 0.38 c255h185 s255h185 1.65 1.90 2.60 2.60 2.60 2.60 2.60 2.90 2.90 2.50 0.39 c260h190 s260h190 1.70 1.95 2.65 2.65 2.65 2.65 2.65 2.95 2.95 2.55 0.40 c265h195 s265h195 1.75 2.00 2.70 2.70 2.70 2.70 2.70 3.00 3.00 2.60 0.41 c270h200 s270h200 1.80 2.05 2.75 2.75 2.75 2.75 2.75 3.05 3.05 2.65 0.41 c275h205 s275h205 1.85 2.10 2.80 2.80 2.80 2.80 2.80 3.10 3.10 2.70 0.42 c280h210 s280h210 1.90 2.15 2.85 2.85 2.85 2.85 2.85 3.15 3.15 2.75 0.43 c285h215 s285h215 1.95 2.20 2.90 2.90 2.90 2.90 2.90 3.20 3.20 2.80 0.44 c290h220 s290h2201.95 2.20 2.90 2.90 2.90 2.90 2.90 3.20 3.20 2.80 0.44 c290h220 s290h220 2.00 2.25 2.95 2.95 2.95 2.95 2.95 3.25 3.25 2.85 0.44 c295h225 s295h225 2.05 2.30 3.00 3.00 3.00 3.00 3.00 3.30 3.30 2.90 0.45 c300h230 s300h230 2.10 2.35 3.05 3.05 3.05 3.05 3.05 3.35 3.35 2.95 0.46 c305h235 s305h235 2.15 2.40 3.10 3.10 3.10 3.10 3.10 3.40 3.40 3.00 0.47 c310h240 s310h240 2.20 2.45 3.15 3.15 3.15 3.15 3.15 3.45 3.45 3.05 0.47 c315h245 s315h245 2.25 2.50 3.20 3.20 3.20 3.20 3.20 3.50 3.50 3.10 0.48 c320h250 s320h250 2.30 2.55 3.25 3.25 3.25 3.25 3.25 3.55 3.55 3.15 0.49 c325h255 s325h255 2.35 2.60 3.30 3.30 3.30 3.30 3.30 3.60 3.60 3.20 0.50 c330h260 s330h260 2.40 2.65 3.35 3.35 3.35 3.35 3.35 3.65 3.65 3.25 0.50 c335h265 s335h265 2.45 2.70 3.40 3.40 3.40 3.40 3.40 3.70 3.70 3.30 0.51 c340h270 s340h270 2.50 2.75 3.45 3.45 3.45 3.45 3.45 3.75 3.75 3.35 0.52 c345h275 s345h275 2.55 2.80 3.50 3.50 3.50 3.50 3.50 3.80 3.80 3.40 0.53 c350h280 s350h280 Level A Level B Level C Level B (Nominal) Values for Plated Through Hole Component Padstacks Padstack Names Copyright 2010 IPC - Mentor Graphics Corp. 7/19/2010 IPC-7251 LEVEL A LAND PATTERN CONSTRUCTION Max Lead Dia Finished Hole Dia Mounted Land Internal Layer Land Dia Opposite Land Solder Mask Top & Bottom Assembly Top & Bottom Plane Clearance "Anti-pad" Dia Thermal OD Thermal ID Thermal 4 Spoke Width Naming Convention for Circular Land Naming Convention for Square Land Level A (Maximum) Values for Plated Through Hole Component Padstacks Padstack Names All dimensions are diameters in millimeters Max Lead Dia Finished Hole Dia Mounted Land Internal Layer Land Dia Opposite Land Solder Mask Top & Bottom Assembly Top & Bottom Plane Clearance Dia Thermal OD Thermal ID Thermal 4 Spoke Width Naming Convention for Circular Land Naming Convention for Square Land 0.10 0.30 0.90 0.90 0.90 0.90 0.90 1.00 1.00 0.70 0.14 c90h30 s90h30 0.15 0.35 0.95 0.95 0.95 0.95 0.95 1.05 1.05 0.75 0.14 c95h35 s95h35 0.20 0.40 1.00 1.00 1.00 1.00 1.00 1.10 1.10 0.80 0.15 c100h40 s100h40 0.25 0.45 1.05 1.05 1.05 1.05 1.05 1.15 1.15 0.85 0.16 c105h45 s105h45 0.30 0.50 1.10 1.10 1.10 1.10 1.10 1.20 1.20 0.90 0.17 c110h50 s110h50 0.35 0.55 1.15 1.15 1.15 1.15 1.15 1.25 1.25 0.95 0.17 c115h55 s115h55 0.40 0.60 1.20 1.20 1.20 1.20 1.20 1.30 1.30 1.00 0.18 c120h60 s120h60 0.45 0.65 1.25 1.25 1.25 1.25 1.25 1.35 1.35 1.05 0.19 c125h65 s125h65 0.50 0.70 1.30 1.30 1.30 1.30 1.30 1.40 1.40 1.10 0.20 c130h70 s130h70 0.55 0.75 1.35 1.35 1.35 1.35 1.35 1.45 1.45 1.15 0.20 c135h75 s135h75 0.60 0.80 1.40 1.40 1.40 1.40 1.40 1.50 1.50 1.20 0.21 c140h80 s140h80 0 65 0 85 1 45 1 45 1 45 1 45 1 45 1 55 1 55 1 25 0 22 c145h85 s145h85 All dimensions are diameters in millimeters 0.65 0.85 1.45 1.45 1.45 1.45 1.45 1.55 1.55 1.25 0.22 c145h85 s145h85 0.70 0.90 1.50 1.50 1.50 1.50 1.50 1.60 1.60 1.30 0.23 c150h90 s150h90 0.75 0.95 1.55 1.55 1.55 1.55 1.55 1.65 1.65 1.35 0.23 c155h95 s155h95 0.80 1.00 1.60 1.60 1.60 1.60 1.60 1.70 1.70 1.40 0.24 c160h100 s160h100 0.85 1.05 1.65 1.65 1.65 1.65 1.65 1.75 1.75 1.45 0.25 c165h105 s165h105 0.90 1.10 1.70 1.70 1.70 1.70 1.70 1.80 1.80 1.50 0.26 c170h110 s170h110 0.95 1.15 1.75 1.75 1.75 1.75 1.75 1.85 1.85 1.55 0.26 c175h115 s175h115 1.00 1.20 1.80 1.80 1.80 1.80 1.80 1.90 1.90 1.60 0.27 c180h120 s180h120 1.05 1.25 1.85 1.85 1.85 1.85 1.85 1.95 1.95 1.65 0.28 c185h125 s185h125 1.10 1.30 1.90 1.90 1.90 1.90 1.90 2.00 2.00 1.70 0.29 c190h130 s190h130 1.15 1.35 1.95 1.95 1.95 1.95 1.95 2.05 2.05 1.75 0.29 c195h135 s195h135 1.20 1.40 2.00 2.00 2.00 2.00 2.00 2.10 2.10 1.80 0.30 c200h140 s200h140 1.25 1.45 2.05 2.05 2.05 2.05 2.05 2.15 2.15 1.85 0.31 c205h145 s205h145 1.30 1.50 2.10 2.10 2.10 2.10 2.10 2.20 2.20 1.90 0.32 c210h150 s210h150 1.35 1.55 2.15 2.15 2.15 2.15 2.15 2.25 2.25 1.95 0.32 c215h155 s215h155 1.40 1.60 2.20 2.20 2.20 2.20 2.20 2.30 2.30 2.00 0.33 c220h160 s220h160 1.45 1.65 2.25 2.25 2.25 2.25 2.25 2.35 2.35 2.05 0.34 c225h165 s225h165 1.50 1.70 2.30 2.30 2.30 2.30 2.30 2.40 2.40 2.10 0.35 c230h170 s230h170 Copyright 2010 IPC - Mentor Graphics Corp. 7/19/2010 IPC-7251 LEVEL A LAND PATTERN CONSTRUCTION Max Lead Dia Finished Hole Dia Mounted Land Internal Layer Land Dia Opposite Land Solder Mask Top & Bottom Assembly Top & Bottom Plane Clearance "Anti-pad" Dia Thermal OD Thermal ID Thermal 4 Spoke Width Naming Convention for Circular Land Naming Convention for Square Land Level A (Maximum) Values for Plated Through Hole Component Padstacks Padstack Names All dimensions are diameters in millimeters 1.55 1.75 2.35 2.35 2.35 2.35 2.35 2.45 2.45 2.15 0.35 c235h175 s235h175 1.60 1.80 2.40 2.40 2.40 2.40 2.40 2.50 2.50 2.20 0.36 c240h180 s240h180 1.65 1.85 2.45 2.45 2.45 2.45 2.45 2.55 2.55 2.25 0.37 c245h185 s245h185 1.70 1.90 2.50 2.50 2.50 2.50 2.50 2.60 2.60 2.30 0.38 c250h190 s250h190 1.75 1.95 2.55 2.55 2.55 2.55 2.55 2.65 2.65 2.35 0.38 c255h195 s255h195 1.80 2.00 2.60 2.60 2.60 2.60 2.60 2.70 2.70 2.40 0.39 c260h200 s260h200 1.85 2.05 2.65 2.65 2.65 2.65 2.65 2.75 2.75 2.45 0.40 c265h205 s265h205 1.90 2.10 2.70 2.70 2.70 2.70 2.70 2.80 2.80 2.50 0.41 c270h210 s270h210 1.95 2.15 2.75 2.75 2.75 2.75 2.75 2.85 2.85 2.55 0.41 c275h215 s275h215 2.00 2.20 2.80 2.80 2.80 2.80 2.80 2.90 2.90 2.60 0.42 c280h220 s280h220 2.05 2.25 2.85 2.85 2.85 2.85 2.85 2.95 2.95 2.65 0.43 c285h225 s285h225 2.10 2.30 2.90 2.90 2.90 2.90 2.90 3.00 3.00 2.70 0.44 c290h230 s290h230 2.15 2.35 2.95 2.95 2.95 2.95 2.95 3.05 3.05 2.75 0.44 c295h235 s295h235 2.20 2.40 3.00 3.00 3.00 3.00 3.00 3.10 3.10 2.80 0.45 c300h240 s300h240 2.25 2.45 3.05 3.05 3.05 3.05 3.05 3.15 3.15 2.85 0.46 c305h245 s305h245 2.30 2.50 3.10 3.10 3.10 3.10 3.10 3.20 3.20 2.90 0.47 c310h250 s310h2502.30 2.50 3.10 3.10 3.10 3.10 3.10 3.20 3.20 2.90 0.47 c310h250 s310h250 2.35 2.55 3.15 3.15 3.15 3.15 3.15 3.25 3.25 2.95 0.47 c315h255 s315h255 2.40 2.60 3.20 3.20 3.20 3.20 3.20 3.30 3.30 3.00 0.48 c320h260 s320h260 2.45 2.65 3.25 3.25 3.25 3.25 3.25 3.35 3.35 3.05 0.49 c325h265 s325h265 2.50 2.70 3.30 3.30 3.30 3.30 3.30 3.40 3.40 3.10 0.50 c330h270 s330h270 2.55 2.75 3.35 3.35 3.35 3.35 3.35 3.45 3.45 3.15 0.50 c335h275 s335h275 Max Lead Dia Finished Hole Dia Mounted Land Internal Layer Land Dia Opposite Land Solder Mask Top & Bottom Assembly Top & Bottom Plane Clearance Dia Thermal OD Thermal ID Thermal 4 Spoke Width Naming Convention for Circular Land Naming Convention for Square Land 0.10 0.25 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.55 0.11 c75h25 s75h25 0.15 0.30 0.80 0.80 0.80 0.80 0.80 0.80 0.80 0.60 0.12 c80h30 s80h30 0.20 0.35 0.85 0.85 0.85 0.85 0.85 0.85 0.85 0.65 0.13 c85h35 s85h35 All dimensions are diameters in millimeters Level C (Least) Values for Plated Through Hole Component Padstacks Padstack Names Level A Level CLevel B Copyright 2010 IPC - Mentor Graphics Corp. 7/19/2010 IPC-7251 LEVEL A LAND PATTERN CONSTRUCTION Max Lead Dia Finished Hole Dia Mounted Land Internal Layer Land Dia Opposite Land Solder Mask Top & Bottom Assembly Top & Bottom Plane Clearance "Anti-pad" Dia Thermal OD Thermal ID Thermal 4 Spoke Width Naming Convention for Circular Land Naming Convention for Square Land Level A (Maximum) Values for Plated Through Hole Component Padstacks Padstack Names All dimensions are diameters in millimeters 0.25 0.40 0.90 0.90 0.90 0.90 0.90 0.90 0.90 0.70 0.14 c90h40 s90h40 0.30 0.45 0.95 0.95 0.95 0.95 0.95 0.95 0.95 0.75 0.14 c95h45 s95h45 0.35 0.50 1.00 1.00 1.00 1.00 1.00 1.00 1.00 0.80 0.15 c100h50 s100h50 0.40 0.55 1.05 1.05 1.05 1.05 1.05 1.05 1.05 0.85 0.16 c105h55 s105h55 0.45 0.60 1.10 1.10 1.10 1.10 1.10 1.10 1.10 0.90 0.17 c110h60 s110h60 0.50 0.65 1.15 1.15 1.15 1.15 1.15 1.15 1.15 0.95 0.17 c115h65 s115h65 0.55 0.70 1.20 1.20 1.20 1.20 1.20 1.20 1.20 1.00 0.18 c120h70 s120h70 0.60 0.75 1.25 1.25 1.25 1.25 1.25 1.25 1.25 1.05 0.19 c125h75 s125h75 0.65 0.80 1.30 1.30 1.30 1.30 1.30 1.30 1.30 1.10 0.20 c130h80 s130h80 0.70 0.85 1.35 1.35 1.35 1.35 1.35 1.35 1.35 1.15 0.20 c135h85 s135h85 0.75 0.90 1.40 1.40 1.40 1.40 1.40 1.40 1.40 1.20 0.21 c140h90 s140h90 0.80 0.95 1.45 1.45 1.45 1.45 1.45 1.45 1.45 1.25 0.22 c145h95 s145h95 0.85 1.00 1.50 1.50 1.50 1.50 1.50 1.50 1.50 1.30 0.23 c150h100 s150h100 0.90 1.05 1.55 1.55 1.55 1.55 1.55 1.55 1.55 1.35 0.23 c155h105 s155h105 0.95 1.10 1.60 1.60 1.60 1.60 1.60 1.60 1.60 1.40 0.24 c160h110 s160h110 1.00 1.15 1.65 1.65 1.65 1.65 1.65 1.65 1.65 1.45 0.25 c165h115 s165h1151.00 1.15 1.65 1.65 1.65 1.65 1.65 1.65 1.65 1.45 0.25 c165h115 s165h115 1.05 1.20 1.70 1.70 1.70 1.70 1.70 1.70 1.70 1.50 0.26 c170h120 s170h120 1.10 1.25 1.75 1.75 1.75 1.75 1.75 1.75 1.75 1.55 0.26 c175h125 s175h125 1.15 1.30 1.80 1.80 1.80 1.80 1.80 1.80 1.80 1.60 0.27 c180h130 s180h130 1.20 1.35 1.85 1.85 1.85 1.85 1.85 1.85 1.85 1.65 0.28 c185h135 s185h135 1.25 1.40 1.90 1.90 1.90 1.90 1.90 1.90 1.90 1.70 0.29 c190h140 s190h140 1.30 1.45 1.95 1.95 1.95 1.95 1.95 1.95 1.95 1.75 0.29 c195h145 s195h145 1.35 1.50 2.00 2.00 2.00 2.00 2.00 2.00 2.00 1.80 0.30 c200h150 s200h150 1.40 1.55 2.05 2.05 2.05 2.05 2.05 2.05 2.05 1.85 0.31 c205h155 s205h155 1.45 1.60 2.10 2.10 2.10 2.10 2.10 2.10 2.10 1.90 0.32 c210h160 s210h160 1.50 1.65 2.15 2.15 2.15 2.15 2.15 2.15 2.15 1.95 0.32 c215h165 s215h165 1.55 1.70 2.20 2.20 2.20 2.20 2.20 2.20 2.20 2.00 0.33 c220h170 s220h170 1.60 1.75 2.25 2.25 2.25 2.25 2.25 2.25 2.25 2.05 0.34 c225h175 s225h175 1.65 1.80 2.30 2.30 2.30 2.30 2.30 2.30 2.30 2.10 0.35 c230h180 s230h180 1.70 1.85 2.35 2.35 2.35 2.35 2.35 2.35 2.35 2.15 0.35 c235h185 s235h185 1.75 1.90 2.40 2.40 2.40 2.40 2.40 2.40 2.40 2.20 0.36 c240h190 s240h190 1.80 1.95 2.45 2.45 2.45 2.45 2.45 2.45 2.45 2.25 0.37 c245h195 s245h195 1.85 2.00 2.50 2.50 2.50 2.50 2.50 2.50 2.50 2.30 0.38 c250h200 s250h200 1.90 2.05 2.55 2.55 2.55 2.55 2.55 2.55 2.55 2.35 0.38 c255h205 s255h205 Copyright 2010 IPC - Mentor Graphics Corp. 7/19/2010 IPC-7251 LEVEL A LAND PATTERN CONSTRUCTION Max Lead Dia Finished Hole Dia Mounted Land Internal Layer Land Dia Opposite Land Solder Mask Top & Bottom Assembly Top & Bottom Plane Clearance "Anti-pad" Dia Thermal OD Thermal ID Thermal 4 Spoke Width Naming Convention for Circular Land Naming Convention for Square Land Level A (Maximum) Values for Plated Through Hole Component Padstacks Padstack Names All dimensions are diameters in millimeters 1.95 2.10 2.60 2.60 2.60 2.60 2.60 2.60 2.60 2.40 0.39 c260h210 s260h210 2.00 2.15 2.65 2.65 2.65 2.65 2.65 2.65 2.65 2.45 0.40 c265h215 s265h215 2.05 2.20 2.70 2.70 2.70 2.70 2.70 2.70 2.70 2.50 0.41 c270h220 s270h220 2.10 2.25 2.75 2.75 2.75 2.75 2.75 2.75 2.75 2.55 0.41 c275h225 s275h225 2.15 2.30 2.80 2.80 2.80 2.80 2.80 2.80 2.80 2.60 0.42 c280h230 s280h230 2.20 2.35 2.85 2.85 2.85 2.85 2.85 2.85 2.85 2.65 0.43 c285h235 s285h235 2.25 2.40 2.90 2.90 2.90 2.90 2.90 2.90 2.90 2.70 0.44 c290h240 s290h240 2.30 2.45 2.95 2.95 2.95 2.95 2.95 2.95 2.95 2.75 0.44 c295h245 s295h245 2.35 2.50 3.00 3.00 3.00 3.00 3.00 3.00 3.00 2.80 0.45 c300h250 s300h250 2.40 2.55 3.05 3.05 3.05 3.05 3.05 3.05 3.05 2.85 0.46 c305h255 s305h255 2.45 2.60 3.10 3.10 3.10 3.10 3.10 3.10 3.10 2.90 0.47 c310h260 s310h260 2.50 2.65 3.15 3.15 3.15 3.15 3.15 3.15 3.15 2.95 0.47 c315h265 s315h265 2.55 2.70 3.20 3.20 3.20 3.20 3.20 3.20 3.20 3.00 0.48 c320h270 s320h270 Copyright 2010 IPC - Mentor Graphics Corp. 7/19/2010 PCB LIBRARIES LAND PATTERN CONSTRUCTION Finished hole Mounted Pad Inner Pad Opposite Pad Plane Clearance Solder Mask Top & Bot Assembly Top & Bot Anti-Pad Keepout Layer 0 0.40 0.20 0.20 0.20 1.15 0.40 0.40 1.15 1.00 0.45 0.20 0.20 0.20 1.20 0.45 0.45 1.20 1.05 0.50 0.20 0.20 0.20 1.25 0.50 0.50 1.25 1.10 0.55 0.20 0.20 0.20 1.35 0.55 0.55 1.35 1.15 0.60 0.50 0.50 0.50 1.40 0.60 0.60 1.40 1.20 0.65 0.50 0.50 0.50 1.45 0.65 0.65 1.45 1.25 0.70 0.50 0.50 0.50 1.50 0.70 0.70 1.50 1.30 0.75 0.50 0.50 0.50 1.55 0.75 0.75 1.55 1.35 0.80 0.50 0.50 0.50 1.60 0.80 0.80 1.60 1.40 0.85 0.50 0.50 0.50 1.65 0.85 0.85 1.65 1.45 0.90 0.50 0.50 0.50 1.70 0.90 0.90 1.70 1.50 0.95 0.50 0.50 0.50 1.75 0.95 0.95 1.75 1.55 1.00 0.50 0.50 0.50 1.80 1.00 1.00 1.80 1.60 1.05 0.50 0.50 0.50 1.90 1.05 1.05 1.90 1.65 1.10 1.00 1.00 1.00 1.95 1.10 1.10 1.95 1.70 1.15 1.00 1.00 1.00 2.00 1.15 1.15 2.00 1.75 1.20 1.00 1.00 1.00 2.05 1.20 1.20 2.05 1.80 1.25 1.00 1.00 1.00 2.10 1.25 1.25 2.10 1.85 1.30 1.00 1.00 1.00 2.15 1.30 1.30 2.15 1.90 1.35 1.00 1.00 1.00 2.20 1.35 1.35 2.20 1.95 1.40 1.00 1.00 1.00 2.25 1.40 1.40 2.25 2.00 1.45 1.00 1.00 1.00 2.30 1.45 1.45 2.30 2.05 1.50 1.00 1.00 1.00 2.35 1.50 1.50 2.35 2.10 1.55 1.00 1.00 1.00 2.45 1.55 1.55 2.45 2.15 Sizes for Non-Plated Through Hole Component Padstacks All dimensions are diameters in mm 1.60 1.00 1.00 1.00 2.50 1.60 1.60 2.50 2.20 1.65 1.00 1.00 1.00 2.55 1.65 1.65 2.55 2.25 1.70 1.00 1.00 1.00 2.60 1.70 1.70 2.60 2.30 1.75 1.00 1.00 1.00 2.65 1.75 1.75 2.65 2.35 1.80 1.00 1.00 1.00 2.70 1.80 1.80 2.70 2.40 1.85 1.00 1.00 1.00 2.75 1.85 1.85 2.75 2.45 1.90 1.00 1.00 1.00 2.80 1.90 1.90 2.80 2.50 1.95 1.00 1.00 1.00 2.85 1.95 1.95 2.85 2.55 2.00 1.00 1.00 1.00 2.90 2.00 2.00 2.90 2.60 2.05 1.00 1.00 1.00 3.00 2.05 2.05 3.00 2.65 2.10 1.00 1.00 1.00 3.05 2.10 2.10 3.05 2.70 2.15 1.00 1.00 1.00 3.10 2.15 2.15 3.10 2.75 2.20 1.00 1.00 1.00 3.15 2.20 2.20 3.15 2.80 2.25 1.00 1.00 1.00 3.20 2.25 2.25 3.20 2.85 2.30 1.00 1.00 1.00 3.25 2.30 2.30 3.25 2.90 2.35 1.00 1.00 1.00 3.30 2.35 2.35 3.30 2.95 2.40 1.00 1.00 1.00 3.35 2.40 2.40 3.35 3.00 2.45 1.00 1.00 1.00 3.40 2.45 2.45 3.40 3.05 2.50 1.00 1.00 1.00 3.45 2.50 2.50 3.45 3.10 2.55 1.00 1.00 1.00 3.55 2.55 2.55 3.55 3.15 2.60 1.00 1.00 1.00 3.60 2.60 2.60 3.60 3.20 2.65 1.00 1.00 1.00 3.65 2.65 2.65 3.65 3.25 a 2005 PCB Libraries, Inc. 7/19/2010 PCB LIBRARIES LAND PATTERN CONSTRUCTION Finished hole Mounted Pad Inner Pad Opposite Pad Plane Clearance Solder Mask Top & Bot Assembly Top & Bot Anti-Pad Keepout Layer 0 Sizes for Non-Plated Through Hole Component Padstacks All dimensions are diameters in mm 2.70 1.00 1.00 1.00 3.70 2.70 2.70 3.70 3.30 2.75 1.00 1.00 1.00 3.75 2.75 2.75 3.75 3.35 2.80 1.00 1.00 1.00 3.80 2.80 2.80 3.80 3.40 2.85 1.00 1.00 1.00 3.85 2.85 2.85 3.85 3.45 2.90 1.00 1.00 1.00 3.90 2.90 2.90 3.90 3.50 2.95 1.00 1.00 1.00 3.95 2.95 2.95 3.95 3.55 3.00 1.00 1.00 1.00 4.00 3.00 3.00 4.00 3.60 3.05 1.00 1.00 1.00 4.10 3.05 3.05 4.10 3.65 3.10 1.00 1.00 1.00 4.15 3.10 3.10 4.15 3.70 3.15 1.00 1.00 1.00 4.20 3.15 3.15 4.20 3.75 3.20 1.00 1.00 1.00 4.25 3.20 3.20 4.25 3.80 3.25 1.00 1.00 1.00 4.30 3.25 3.25 4.30 3.85 3.30 1.00 1.00 1.00 4.35 3.30 3.30 4.35 3.90 3.35 1.00 1.00 1.00 4.40 3.35 3.35 4.45 3.95 3.40 1.00 1.00 1.00 4.45 3.40 3.40 4.45 4.00 3.45 1.00 1.00 1.00 4.50 3.45 3.45 4.50 4.05 3.50 1.00 1.00 1.00 4.55 3.50 3.50 4.55 4.10 3.55 1.00 1.00 1.00 4.65 3.55 3.55 4.65 4.15 3.60 1.00 1.00 1.00 4.70 3.60 3.60 4.70 4.20 3.65 1.00 1.00 1.00 4.7