Part Datasheet Review
Worked for 4 mins 59 sec
I found an official Bourns PTV09 datasheet URL and confirmed the existing Datasheet URL already points to a datasheet copy, so I’m leaving the property unchanged and using the official Bourns data as the review reference.
Worked for 3 mins 12 sec
Created a project doc
Part Datasheet Review — Bourns PTV09A-4020F-B104
Review date: 2026-07-17 Existing project Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/user-upload...
Completed the part review and saved the full findings in Part Datasheet Review.
Key result: the pin numbering/mapping and signal-terminal spacing match the Bourns datasheet, but the footprint’s mechanical mounting tab geometry does not match: current holes are circular at 8.8 mm spacing, while the datasheet calls for 1.8 × 2.2 mm slots at 10.6 mm spacing. I also flagged incomplete pin metadata, an inappropriate
TO package descriptor, B103/B104 footprint metadata mismatch, and noted the official Bourns datasheet URL found.Fix and verify
Fix footprint mismatch
Update part metadata
Use official datasheet
Run DRC review
Refine this doc
Ask about this doc
Part Datasheet Review — Bourns PTV09A-4020F-B104
Review date: 2026-07-17
Datasheet sources
- Existing project
Datasheet URL:https://storage.googleapis.com/graviton-electric-symbols/document_assets/user-uploaded/9cbac3d90743b2a893d6fb57963df8baa095476a29e6209751be5028a19f6277.pdf - Official Bourns datasheet found on the web:
https://www.bourns.com/docs/product-datasheets/PTV09.pdf - Because a datasheet URL was already set on the part, the Datasheet property was not changed.
Available part information reviewed
Table
| Field | Current project/library value | Datasheet cross-check |
|---|---|---|
| MPN | PTV09A-4020F-B104 | Matches Bourns ordering format. |
| Manufacturer | Bourns | Matches datasheet. |
| Part type | Resistors / Variable (Potentiometer) | Functionally correct; more specific label should be variable resistor/potentiometer. |
| Description | 1 gang rotary carbon potentiometer, 6 mm shaft, 100 kΩ, ±20 %, 0.05 W, linear | Matches datasheet for PTV09A-4020F-B104. |
| Electrical terminal count | 3 | Matches datasheet: terminals 1, 2, 3. |
| Designator prefix | VR | Appropriate for variable resistor/potentiometer. |
| Mount / package | Through-hole; library package/case reported as TO | Through-hole is correct. TO package/case is not a good package descriptor for this part; datasheet package is PTV09A-4 horizontal/rear mount, bushingless. |
| Datasheet URL | Storage-hosted PDF copy | A URL is present. Official Bourns URL was found separately. |
Key datasheet specs
Table
| Spec | Value |
|---|---|
| Series | Bourns PTV09 Series, 9 mm potentiometer |
| Exact configuration | PTV09A-4 horizontal/rear mount, bushingless |
| Option | No detent (0) |
| Shaft | 20 mm flat insulated shaft (20F), Ø6.0 mm +0.0 / -0.1 mm |
| Resistance | 100 kΩ (104) |
| Resistance tolerance | ±20 % |
| Taper | Linear for PTV09 B taper code |
| Power rating | 0.05 W |
| Maximum operating voltage | 20 VDC / 50 VAC |
| Operating temperature | -10 °C to +50 °C |
| Mechanical angle | 280° ±10° |
| Rotational torque | 10 to 100 g-cm |
| Stop strength | 2 kg-cm min. |
| Rotational life | 10,000 cycles |
| Soldering condition | 300 °C max within 3 s |
| RoHS | RoHS compliant / lead-free versions |
Symbol and pin cross-check
Table
| Pin | Current symbol terminal | Datasheet function | Result |
|---|---|---|---|
| 1 | CCW, Pin Number 1 | End terminal / CCW end | Matches functional mapping. |
| 2 | WIPER, Pin Number 2 | Wiper/output terminal | Matches. |
| 3 | CW, Pin Number 3 | End terminal / CW end | Matches functional mapping. |
Notes:
- The symbol is implemented as three separate
Terminalcomponents rather than a single drawn potentiometer symbol. That is acceptable for a part-terminal project, but it does not visually show the resistive element/wiper relationship. - Pin descriptions and pin types are currently generic/unspecified. Recommended pin metadata:
- Pin 1:
CCW end terminal, typePassive - Pin 2:
Wiper, typePassive - Pin 3:
CW end terminal, typePassive
- Pin 1:
Footprint cross-check
Signal terminals
Table
| Feature | Footprint | Datasheet | Result |
|---|---|---|---|
| Pin 1 position | x = -2.5 mm | x = -2.5 mm relative to pin 2 | Matches. |
| Pin 2 position | x = 0 mm | origin / center | Matches. |
| Pin 3 position | x = +2.5 mm | x = +2.5 mm relative to pin 2 | Matches. |
| Adjacent signal pitch | 2.5 mm | 2.5 mm | Matches. |
| Outer signal spacing | 5.0 mm | 5.0 mm | Matches. |
| Signal drill | 1.2 mm | Ø1.0 mm +0.2 / -0.0 | At upper datasheet limit; acceptable but not nominal. |
| Signal pad diameter | 1.8 mm | Datasheet specifies hole, not copper pad | Reasonable annular ring for 1.2 mm drill. |
Mechanical mounting tabs
Table
| Feature | Footprint | Datasheet | Result |
|---|---|---|---|
| Mounting tab spacing | 8.8 mm center-to-center (±4.4 mm) | 10.6 mm center-to-center (±5.3 mm) | Mismatch |
| Mount tab to signal row spacing | 7.0 mm | 7.0 mm | Matches. |
| Mounting hole/slot shape | Circular plated through-hole | Slot/oblong hole | Mismatch |
| Mounting hole/slot size | Drill Ø2.9732 mm, pad Ø4.46 mm | 1.8 mm × 2.2 mm +0.2 / -0.0 slot | Mismatch |
Footprint metadata
- The footprint asset/value names contain
PTV09A4020FB103, while the project MPN isPTV09A-4020F-B104. - The B103/B104 difference is the resistance code, so the mechanical geometry may be shared, but the embedded footprint metadata should be renamed to avoid BOM/library confusion.
Mismatches and recommended fixes
- Mechanical mounting tabs are incorrect: current footprint uses circular holes at 8.8 mm spacing; datasheet calls for 1.8 mm × 2.2 mm slots at 10.6 mm spacing. This is the main fit risk.
- Footprint metadata uses B103 instead of B104: rename footprint/value metadata to the correct MPN or a generic PTV09A-4 mechanical footprint name.
- Package/case descriptor
TOis not appropriate: use PTV09A-4 / through-hole horizontal rear mount / bushingless instead. - Pin metadata is incomplete: set pin type to Passive and add datasheet-based descriptions for CCW, WIPER, and CW.
- Datasheet URL is a storage-hosted copy, not the official Bourns URL: acceptable because a datasheet is present, but the official Bourns URL is preferable if you want the part to point directly to the manufacturer source.
Overall verdict
The electrical symbol pin numbers and potentiometer terminal mapping are correct, and the signal-terminal footprint spacing is correct. The part is not mechanically safe to publish/use as-is because the mounting tab slot geometry and spacing do not match the Bourns datasheet.
Datasheet sources
Available part information reviewed
Key datasheet specs
Symbol and pin cross-check
Footprint cross-check
Signal terminals
Mechanical mounting tabs
Footprint metadata
Mismatches and recommended fixes
Overall verdict
