by adom
0402 Ferrite Bead · 600 Ω @ 100 MHz · 500 mA
← Commit history
Pads: square corners, as the datasheet draws them (no added rounding); viewers, lbr, insertion GLB, hero rebuilt from the footprint
10 files changed
+23−31
BLM15AX601SN1D-fpview.html+3−3BLM15AX601SN1D.adom-lbr.json+2−2BLM15AX601SN1D.insertion.glbBLM15AX601SN1D.kicad_mod+3−3BLM15AX601SN1D.lbr+3−3README.md+3−4blm15ax601sn1d-hero.glbblm15ax601sn1d-hero.overlay.json+3−3footprint-variants/BLM15AX601SN1D.kicad_mod+3−3footprint-variants/BLM15AX601SN1D.variants.json+3−10BLM15AX601SN1D-fpview.html+3−3@@ -350,9 +350,9 @@ <rect x="1" y="1" width="1.8" height="1" fill="none" stroke="#FF26E2" stroke-width="0.05" stroke-dasharray="0.2,0.1"/> <rect x="1.4" y="1.25" width="1" height="0.5" fill="none" stroke="#6e7681" stroke-width="0.1"/> <line x1="1.81" y1="1.14" x2="1.99" y2="1.14" stroke="#00cccc" stroke-width="0.12" stroke-linecap="round"/><line x1="1.81" y1="1.86" x2="1.99" y2="1.86" stroke="#00cccc" stroke-width="0.12" stroke-linecap="round"/>-<rect x="1.25" y="1.25" width="0.45" height="0.5" rx="0.1" ry="0.1" fill="#C83434" stroke="#ef5350" stroke-width="0.04"/>+<rect x="1.25" y="1.25" width="0.45" height="0.5" rx="0" ry="0" fill="#C83434" stroke="#ef5350" stroke-width="0.04"/> <text x="1.475" y="1.5" text-anchor="middle" dominant-baseline="central" font-size="0.203" fill="#fff" font-family="sans-serif">1</text>-<rect x="2.1" y="1.25" width="0.45" height="0.5" rx="0.1" ry="0.1" fill="#C83434" stroke="#ef5350" stroke-width="0.04"/>+<rect x="2.1" y="1.25" width="0.45" height="0.5" rx="0" ry="0" fill="#C83434" stroke="#ef5350" stroke-width="0.04"/> <text x="2.325" y="1.5" text-anchor="middle" dominant-baseline="central" font-size="0.203" fill="#fff" font-family="sans-serif">2</text> </svg> </div>@@ -371,7 +371,7 @@ <div class="info-row"> - <div class="info-item"><span class="info-label">Desc</span><span class="info-value">Land pattern: Murata datasheet p.8</span></div><div class="info-item"><span class="info-label">Pads</span><span class="info-value">2 · 0.45 × 0.5 mm, r 0.1 mm</span></div><div class="info-item"><span class="info-label">Body</span><span class="info-value">1 × 0.5 mm</span></div><div class="info-item"><span class="info-label">Courtyard</span><span class="info-value">1.8 × 1 mm</span></div>+ <div class="info-item"><span class="info-label">Desc</span><span class="info-value">Land pattern: Murata reference specification JENF243A-0018AJ-01 (BLM15 SN series), p.8 (Land pattern designing, standard land dimensions (reflow) for BLM15P/AX/KD)</span></div><div class="info-item"><span class="info-label">Pads</span><span class="info-value">2 · 0.45 × 0.5 mm, r 0 mm</span></div><div class="info-item"><span class="info-label">Body</span><span class="info-value">1 × 0.5 mm</span></div><div class="info-item"><span class="info-label">Courtyard</span><span class="info-value">1.8 × 1 mm</span></div> </div> <div class="info-divider"></div> <div class="coord-row">
BLM15AX601SN1D.adom-lbr.json+2−2@@ -99,7 +99,7 @@ "h_mm": 0.5, "drill_mm": 0.0, "rotation": 0.0,- "shape": "roundrect"+ "shape": "rect" }, { "number": "2",@@ -109,7 +109,7 @@ "h_mm": 0.5, "drill_mm": 0.0, "rotation": 0.0,- "shape": "roundrect"+ "shape": "rect" } ], "graphics": [
BLM15AX601SN1D.insertion.glb⋯ 1 unchanged line ⋯
BLM15AX601SN1D.kicad_mod+3−3@@ -2,7 +2,7 @@ (version 20240108) (generator "adom-basic-parts-overhaul") (layer "F.Cu")- (descr "Murata BLM15AX601SN1D, 0402. Land pattern from Murata reference specification JENF243A-0018AJ-01 (BLM15 SN series), p.8 (Land pattern designing, standard land dimensions (reflow) for BLM15P/AX/KD); corners: datasheet silent; roundrect radius 0.1 mm = min(0.25 x smaller pad side, 0.1 mm), IPC-7351C rounded corners for paste release")+ (descr "Murata BLM15AX601SN1D, 0402. Land pattern from Murata reference specification JENF243A-0018AJ-01 (BLM15 SN series), p.8 (Land pattern designing, standard land dimensions (reflow) for BLM15P/AX/KD); corners: square, as the datasheet draws them") (tags "0402") (attr smd) (fp_text reference "REF**" (at 0 -1.2) (layer "F.SilkS") (effects (font (size 1 1) (thickness 0.15))))@@ -11,6 +11,6 @@ (fp_rect (start -0.5 -0.25) (end 0.5 0.25) (stroke (width 0.1) (type default)) (fill none) (layer "F.Fab")) (fp_line (start -0.09 -0.36) (end 0.09 -0.36) (stroke (width 0.12) (type default)) (layer "F.SilkS")) (fp_line (start -0.09 0.36) (end 0.09 0.36) (stroke (width 0.12) (type default)) (layer "F.SilkS"))- (pad "1" smd roundrect (at -0.425 0) (size 0.45 0.5) (layers "F.Cu" "F.Paste" "F.Mask") (roundrect_rratio 0.2222))- (pad "2" smd roundrect (at 0.425 0) (size 0.45 0.5) (layers "F.Cu" "F.Paste" "F.Mask") (roundrect_rratio 0.2222))+ (pad "1" smd rect (at -0.425 0) (size 0.45 0.5) (layers "F.Cu" "F.Paste" "F.Mask"))+ (pad "2" smd rect (at 0.425 0) (size 0.45 0.5) (layers "F.Cu" "F.Paste" "F.Mask")) )
BLM15AX601SN1D.lbr+3−3@@ -53,9 +53,9 @@ <description>0402 Ferrite Bead · 600 Ω @ 100 MHz · 500 mA</description> <packages> <package name="BLM15AX601SN1D">- <description>2 pads, 1.3 x 0.5 mm. Murata BLM15AX601SN1D, 0402. Land pattern from Murata reference specification JENF243A-0018AJ-01 (BLM15 SN series), p.8 (Land pattern designing, standard land dimensions (reflow) for BLM15P/AX/KD); corners: datasheet silent; roundrect radius 0.1 mm = min(0.25 x smaller pad side, 0.1 mm), IPC-7351C rounded corners for paste release</description>- <smd name="1" x="-0.4250" y="-0.0000" dx="0.4500" dy="0.5000" layer="1" roundness="44"/>- <smd name="2" x="0.4250" y="-0.0000" dx="0.4500" dy="0.5000" layer="1" roundness="44"/>+ <description>2 pads, 1.3 x 0.5 mm. Murata BLM15AX601SN1D, 0402. Land pattern from Murata reference specification JENF243A-0018AJ-01 (BLM15 SN series), p.8 (Land pattern designing, standard land dimensions (reflow) for BLM15P/AX/KD); corners: square, as the datasheet draws them</description>+ <smd name="1" x="-0.4250" y="-0.0000" dx="0.4500" dy="0.5000" layer="1"/>+ <smd name="2" x="0.4250" y="-0.0000" dx="0.4500" dy="0.5000" layer="1"/> <wire x1="-0.5000" y1="0.2500" x2="0.5000" y2="0.2500" width="0.1000" layer="51"/> <wire x1="0.5000" y1="0.2500" x2="0.5000" y2="-0.2500" width="0.1000" layer="51"/> <wire x1="0.5000" y1="-0.2500" x2="-0.5000" y2="-0.2500" width="0.1000" layer="51"/>
README.md+3−4@@ -34,11 +34,10 @@ Source: Land pattern from Murata reference specification JENF243A-0018AJ-01 (BLM | Gap between pads | 0.4 | 0.38 | 0.4 | 0.4 | | Centre to centre | 0.8 to 0.9 | 0.97 | 1 | 0.85 | | Overall | 1.2 to 1.4 | 1.56 | 1.6 | 1.3 |-| Corner radius | not specified | 0.1475 (ratio 0.25) | 0.125 (ratio 0.25) | 0.1 (ratio 0.2222) |+| Corner radius | not specified | 0.1475 (ratio 0.25) | 0.125 (ratio 0.25) | square (as drawn) |+Corners: square, as the datasheet draws them. The datasheet does not call for rounded corners, so the footprint does not add any. -Corners: the datasheet drawing shows plain rectangles and says nothing about corners, so the pads are KiCad roundrects with the radius held to 0.25 x the smaller pad side and no more than 0.1 mm. IPC-7351C favours rounded SMD pad corners for cleaner paste release and to avoid stress points; capping the radius keeps the copper area within 3.82 % of a square-cornered pad.--::adom-footprint-variants{src="/adom/blm15ax601sn1d/render/footprint-variants/BLM15AX601SN1D.variants.json" heading="Pad corners: this footprint, square corners, KiCad default rounding"}+::adom-footprint-variants{src="/adom/blm15ax601sn1d/render/footprint-variants/BLM15AX601SN1D.variants.json" heading="Pad corners: this footprint (square, as drawn) and KiCad default rounding (not used)"} ## Chip outline
blm15ax601sn1d-hero.glb⋯ 1 unchanged line ⋯
blm15ax601sn1d-hero.overlay.json+3−3@@ -69,7 +69,7 @@ "glb": "BLM15AX601SN1D.glb", "glb_sha256": "6afa8898371637fff0e2ed7cebe4f40bb0491333f6b84f5a129e01a4ee00750e", "footprint": "BLM15AX601SN1D.kicad_mod",- "footprint_sha256": "660f04ceefaaddab2db80bf3348614700b6b454bcf4c3b1516ae55fb14153957",+ "footprint_sha256": "3f6264327fdef8b1b1d066d89bd34bf30a274fac35128981b19f378731a83891", "pins": "page.json component.pins", "pins_sha256": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855" },@@ -97,7 +97,7 @@ "pads": [ { "number": "1",- "shape": "roundrect",+ "shape": "rect", "center_mm": [ -0.425, 0.0@@ -110,7 +110,7 @@ }, { "number": "2",- "shape": "roundrect",+ "shape": "rect", "center_mm": [ 0.425, 0.0
footprint-variants/BLM15AX601SN1D.kicad_mod+3−3@@ -2,7 +2,7 @@ (version 20240108) (generator "adom-basic-parts-overhaul") (layer "F.Cu")- (descr "Murata BLM15AX601SN1D, 0402. Land pattern from Murata reference specification JENF243A-0018AJ-01 (BLM15 SN series), p.8 (Land pattern designing, standard land dimensions (reflow) for BLM15P/AX/KD); corners: datasheet silent; roundrect radius 0.1 mm = min(0.25 x smaller pad side, 0.1 mm), IPC-7351C rounded corners for paste release")+ (descr "Murata BLM15AX601SN1D, 0402. Land pattern from Murata reference specification JENF243A-0018AJ-01 (BLM15 SN series), p.8 (Land pattern designing, standard land dimensions (reflow) for BLM15P/AX/KD); corners: square, as the datasheet draws them") (tags "0402") (attr smd) (fp_text reference "REF**" (at 0 -1.2) (layer "F.SilkS") (effects (font (size 1 1) (thickness 0.15))))@@ -11,6 +11,6 @@ (fp_rect (start -0.5 -0.25) (end 0.5 0.25) (stroke (width 0.1) (type default)) (fill none) (layer "F.Fab")) (fp_line (start -0.09 -0.36) (end 0.09 -0.36) (stroke (width 0.12) (type default)) (layer "F.SilkS")) (fp_line (start -0.09 0.36) (end 0.09 0.36) (stroke (width 0.12) (type default)) (layer "F.SilkS"))- (pad "1" smd roundrect (at -0.425 0) (size 0.45 0.5) (layers "F.Cu" "F.Paste" "F.Mask") (roundrect_rratio 0.2222))- (pad "2" smd roundrect (at 0.425 0) (size 0.45 0.5) (layers "F.Cu" "F.Paste" "F.Mask") (roundrect_rratio 0.2222))+ (pad "1" smd rect (at -0.425 0) (size 0.45 0.5) (layers "F.Cu" "F.Paste" "F.Mask"))+ (pad "2" smd rect (at 0.425 0) (size 0.45 0.5) (layers "F.Cu" "F.Paste" "F.Mask")) )
footprint-variants/BLM15AX601SN1D.variants.json+3−10@@ -5,21 +5,14 @@ "variants": [ { "suffix": "",- "device": "this page",+ "device": "this page (square, as drawn)", "kicad_mod": "BLM15AX601SN1D.kicad_mod", "footprintName": "BLM15AX601SN1D",- "changed": "the page footprint: roundrect, corner radius 0.1 mm (ratio 0.2222)"- },- {- "suffix": "-SQ",- "device": "square corners",- "kicad_mod": "BLM15AX601SN1D-SQ.kicad_mod",- "footprintName": "BLM15AX601SN1D-SQ",- "changed": "same pads as plain rectangles, as the datasheet draws them"+ "changed": "the page footprint: plain rectangles, square corners, as the datasheet draws them" }, { "suffix": "-RR25",- "device": "KiCad default rounding",+ "device": "KiCad default rounding (not used)", "kicad_mod": "BLM15AX601SN1D-RR25.kicad_mod", "footprintName": "BLM15AX601SN1D-RR25", "changed": "same pads with roundrect_rratio 0.25 (KiCad's default), radius 0.1125 mm"