Work directly on existing part, no replacement/delegation. Fetch symbol-editing/custom-symbol skills. Inspect terminals, property definitions and assets. Set canonical Symbol Style parametric-v1; remove ALL SVG symbol assets (default/suffix), not unrelated images. Set sensible native groups/order/orientation preserving all terminal IDs/numbers/names/types and footprint mappings. Preserve native SOT-23 footprint/CAD, pin1 top-left (-X,+Y), designator and metadata. Read back schematic/assets; get_symbol render; publish with notes. Return actual URL, style, asset filenames/count removed and remaining, mapping evidence, render limitations, publish version/result, incomplete items. No unnecessary research, no custom pads/CAD.
I’ll convert the existing part to the native parametric symbol, preserve its terminal and SOT-23 mappings, then verify the symbol and publish the update.
The part already had the requested native pin layout and no registered SVG symbol assets; I’ve reaffirmed parametric-v1 and verified all three pin mappings, including pin 1 at −X/+Y. The preview renders the native rectangular symbol with B left, C top, and E bottom; I’ll now publish this verified state.
Verified and republished MMBT3906-TP with parametric-v1; SVG symbols removed 0, remaining 0—none were present. All terminal IDs, B1/E2/C3 mappings, native SOT-23 footprint/CAD, top-left pin 1, and metadata are preserved; published version is 7537aa9f-fcfd-42b2-aaac-ac724ceb33ba.
Mapping evidence and render limitations are recorded in project files: Parametric Conversion Verification; no requested work remains incomplete.
Verified in-place again on 2026-10-21. Actual URL: /jharwinbarrozo/mmbt3906-tp . The requested configuration was already present; Symbol Style was explicitly reaffirmed as canonical parametric-v1 (commit 5f929a32) and read back successfully. No terminal mutations or footprint/CAD mutations were necessary.
Successful republication version: 7537aa9f-fcfd-42b2-aaac-ac724ceb33ba, returned by publish_part.
SVG symbol filenames removed this pass: none; count 0. All-asset and SVG-only reads before/after returned no registered assets; remaining default/suffix SVG symbol count 0. Native embedded PCB Silk Shapes SVG remains intentionally untouched.
Mapping evidence: schematic metadata and native layout tree share the exact terminal/pad IDs tabulated below; pin table confirms 1 B Input, 2 E Passive, 3 C Passive exactly once. Native B pad remains (-1.0,+0.95) mm, pin 1 at -X/+Y; E remains (-1.0,-0.95) mm; C remains (+1.0,0) mm. All descriptions, roles, electrical types, IDs and mappings were preserved.
Existing native groups Base/Emitter/Collector, order 1 within each singleton group, Section Transistor, blank suffixes and orientations B Left / E Bottom / C Top were retained and read back.
get_symbol image and pin-table reads succeeded. The image shows a single rectangular native MAIN symbol, B left, C top, E bottom; it does not show conventional PNP transistor artwork, and the large MAIN preview label overlaps the lower lead. The pin table is the evidence for numbers and layout properties not printed in that image.
Project metadata readback retained Q prefix, Standard Symbol PNP Transistor, manufacturer/MPN/ratings/description/datasheet/implementation details; native SOT-23 footprint, model and active dynamic Q# designator remained untouched.
Incomplete requested items: none. Limitations: no independent 3D visual-fit validation and no placed-board symbol preview. No replacements, delegation, custom pads or custom CAD were used.
The earlier pass and original mapping evidence are retained below; its publish version is historical and superseded by the latest version above.
Result
Existing part updated directly and successfully republished, without replacement or delegation.
Stored Symbol Style: parametric-v1, confirmed by project readback. Canonical property definition lists this as the latest Parametric option.
Publish result: Component republished with new version f73f807f-77cb-4b57-a498-ae628227323a.
Removed SVG symbol filenames: none; removed count 0. Asset listing before and after returned no assets. Remaining SVG symbol count 0, including suffix-associated symbol assets. Native footprint Silk Shapes SVG was preserved because it is unrelated PCB silkscreen, not a schematic symbol asset.
Before/after mapping
These values were read from the existing project, not newly inferred from a datasheet. All terminal and corresponding pad IDs, names, numbers, electrical types, positions and footprint mapping remained identical.
Table
Pin
Name
Electrical type before → after
Terminal / native pad UID before = after
PCB position mm before = after
1
B
Input → Input
c92128bd-f53b-4a11-85bb-039521c3da9f
(-1.0, +0.95)
2
E
Passive → Passive
891add6b-1970-4379-bc45-e9b9a06a83ef
(-1.0, -0.95)
3
C
Passive → Passive
fe93063a-9e84-43dc-bae7-e13c15372f96
(+1.0, 0)
Exactly three physical pins remain, each present once. Pin descriptions and roles remain Base, Emitter and Collector. No nets, wires or no-connects were added or removed.
Native symbol layout
Table
Pin
Group before = after
Order before = after
Orientation before → after
Section before = after
Suffix
B
Base
1
left → Left
Transistor
blank
E
Emitter
1
bottom → Bottom
Transistor
blank
C
Collector
1
top → Top
Transistor
blank
Orders are unique and consecutive within each singleton group and section. Symbol image render succeeded, showing one MAIN rectangular parametric symbol with B left, C top and E bottom. Pin table render succeeded and confirmed all three pins and their settings. The preview uses a MAIN label rather than a placed component's dynamic designator; the PCB dynamic designator check is recorded below.
Footprint, CAD and metadata preservation
Layout tree readback matched its pre-edit state. Native footprint UID remains 19d366ea-05a2-4687-843c-d508080f33ed.defaultFootprint; native model UID remains 19d366ea-05a2-4687-843c-d508080f33ed.defaultFootprint_model. Package remains SOT-23 with existing native model parameters 1.3 × 2.9 × 1.025 mm, unchanged scale and transforms. Pads retain their existing 0.8 × 0.9 mm local dimensions and rotations. Pin 1 B remains at (-X,+Y), the requested top-left position. No downloaded CAD or handmade pads were introduced.
The existing PCB Designator text remains active on Top, at (0, +2.45 mm), font size 0.7 mm, with dynamic content expression = this.element.designator resolving to Q#. Existing footprint silk is unchanged.
All existing project metadata, manufacturer, MPN, description, Standard Symbol PNP Transistor, Q designator prefix, ratings, implementation details and Datasheet URL were preserved. The only added project property is Symbol Style.
Limits and incomplete items
No requested conversion or publishing work remains incomplete. Native CAD/model configuration was verified unchanged from the layout tree; 3D visual fit was not independently rendered or validated in this symbol-only task. The existing implementation note already identifies this limitation.
Publish notes
The published change notes record latest parametric-v1 conversion, title-case orientations and native groups/order, unchanged 1 B Input / 2 E Passive / 3 C Passive mappings and IDs, 0 removed / 0 remaining SVG symbol assets, preserved native SOT-23 footprint and CAD, top-left pin 1, active dynamic Q# designator, successful symbol image/pin table render, and the remaining CAD visual-fit limitation.