component
BC857B-QR
Public Made by Adomby adom
Nexperia Bipolar (BJT), SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
← Commit history
bc857b-qr: component.models_3d pose record per STEP (Z-up, seated z=0, pad-centre origin, identity binding)
2 files changed
+87−7
package.json+45−5@@ -53,19 +53,19 @@ "number": "1", "name": "B", "type": "input",- "description": "Base terminal for transistor control; DC current gain (hFE) ranges from 220 to 475 at VCE = \u22125 V and IC = \u22122 mA."+ "description": "Base terminal for transistor control; DC current gain (hFE) ranges from 220 to 475 at VCE = −5 V and IC = −2 mA." }, { "number": "2", "name": "E", "type": "passive",- "description": "Emitter terminal; maximum base-emitter voltage (VEBO) is \u22125 V."+ "description": "Emitter terminal; maximum base-emitter voltage (VEBO) is −5 V." }, { "number": "3", "name": "C", "type": "passive",- "description": "Collector terminal; maximum collector-emitter voltage (VCEO) is \u221245 V and maximum collector current (IC) is \u2212100 mA."+ "description": "Collector terminal; maximum collector-emitter voltage (VCEO) is −45 V and maximum collector current (IC) is −100 mA." } ], "provenance": {@@ -100,6 +100,46 @@ "viewers": { "symbol": "viewers/symbol.html", "footprint": "viewers/footprint.html"- }+ },+ "models_3d": [+ {+ "file": "bc857b-qr.step",+ "role": "plain",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 2.5,+ 3.0,+ 1.2+ ],+ "zmin_mm": 0.0,+ "centre_offset_mm": 0.0,+ "footprint_binding": "identity",+ "sha256": "dd5d1711204e1d8d26cd11490923bd84340820baa69538c385a4300ec2539bc0",+ "checked": "2026-10-07",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ },+ {+ "file": "bc857b-qr-etched.step",+ "role": "eda",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 2.5,+ 3.0,+ 1.2+ ],+ "zmin_mm": 0.0,+ "centre_offset_mm": 0.0,+ "footprint_binding": "identity",+ "sha256": "89793ecde8a9cd999eb5220f2d7188e7edd9955e7bd8246d013cf671c6bcef7b",+ "checked": "2026-10-07",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ }+ ] }-}+}
page.json+42−2@@ -85,7 +85,47 @@ "viewers": { "symbol": "viewers/symbol.html", "footprint": "viewers/footprint.html"- }+ },+ "models_3d": [+ {+ "file": "bc857b-qr.step",+ "role": "plain",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 2.5,+ 3.0,+ 1.2+ ],+ "zmin_mm": 0.0,+ "centre_offset_mm": 0.0,+ "footprint_binding": "identity",+ "sha256": "dd5d1711204e1d8d26cd11490923bd84340820baa69538c385a4300ec2539bc0",+ "checked": "2026-10-07",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ },+ {+ "file": "bc857b-qr-etched.step",+ "role": "eda",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 2.5,+ 3.0,+ 1.2+ ],+ "zmin_mm": 0.0,+ "centre_offset_mm": 0.0,+ "footprint_binding": "identity",+ "sha256": "89793ecde8a9cd999eb5220f2d7188e7edd9955e7bd8246d013cf671c6bcef7b",+ "checked": "2026-10-07",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ }+ ] }, "metadata": { "specs": {@@ -133,4 +173,4 @@ "public": true }, "updated_at": "2026-09-24T17:39:23.675Z"-}+}