Part Review and Datasheet Analysis
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Looking for "part description manufacturer part number product type package style mounting style number of contacts or terminals" in bc247afe-c6d-4b5e-af4b-80e7f9cda64b
Looking for "absolute maximum ratings" in bc247afe-c6d3-4b5e-af4b-80e7f9cda64b
Looking for "recommended operating conditions" in bc247afe-c6d3-4b5e-af4b-80e7f9cda64b
Looking for "electrical characteristics" in bc247afe-c6d3-4b5e-af4b-80e7f9cda64b
Looking for "features applications description" in bc247afe-c6d3-4b5e-af4b-80e7f9cda64b
Looking for "terminal or pin descriptions contact identification" in bc247afe-c6d3-4b5e-af4b-80e7f9cda64b
Looking for "mechanical dimensions package dimensions panel cutout pcb mounting dimensions" in bc247afe-c6d3-4b5e-af4b-80e7f9cda64b
Looking for "recommended pcb layout hole size footprint mounting dimensions spacing" in bc247afe-c6d3-4b5e-af4b-80e7f9cda64b
Part review: Pomona 73099-0
2) Datasheet property status
Main mismatch risk
Bottom line
1) Available part information
| Field | Result |
|---|---|
| Manufacturer | Pomona Electronics |
| MPN | 73099-0 |
| Project description | Test Plugs & Test Jacks RT ANG 4mm MOUNTING SAFETY JACK PCB BLK |
| Datasheet URL present | Yes |
| Mount | PCB |
| Part type property | Connectors |
| Designator prefix property | J |
| Schematic instances in this part project | 1, 2, 3, 4, 5 |
| Symbol pin count currently modeled | 5 |
| Symbol pin names currently modeled | Numeric only: 1, 2, 3, 4, 5 |
| Symbol pin types currently modeled | All Unspecified |
| Footprint asset | 730990.kicad_mod |
| 3D model asset | 73099-0.stp |
| Footprint pad count | 5 |
| Footprint drills | Pads 1-4: 1.3 mm, Pad 5: 2.2 mm |
| Footprint outer pad pitch | 10.16 mm x 10.16 mm pattern |
| BOM part name | Terminal |
The part already has a datasheet URL set, so no web lookup or property update was needed.
3) Datasheet scan summary
Datasheet-derived metadata
| Category | Datasheet findings |
|---|---|
| Product | Pomona Model 73099 |
| Description | Right-Angle Mounting Safety Jack for PCB |
| Function | For mounting and making 4 mm banana plug connections to PCBs |
| Features | Right-angle configuration; insulated 4 mm safety jack for sheathed banana plugs; compatible with Pomona 5907A, 5908A, 5909A lead sets; machined brass |
| Ratings | CAT III 1000 V / CAT IV 600 V, 24 A |
| Ordering | 73099-color, where 0 = Black, 2 = Red |
Mechanical dimensions from datasheet
| Parameter | Value |
|---|---|
| Overall length | 33 mm / 1.299 in |
| Body section length | 14 mm / 0.551 in |
| Front section length | 5.5 mm / 0.217 in |
| Main body diameter/height | 11.5 mm / 0.453 in |
| Nose diameter steps | 11 mm, 9.1 mm, 6.2 mm, 4.1 mm |
| Front view overall width | 12 mm / 0.472 in |
| Front view overall height | 14.9 mm / 0.587 in |
| Lower front view height to shoulder | 3.4 mm / 0.134 in |
PCB mounting dimensions found in datasheet
| Parameter | Value |
|---|---|
| Lead diameter/width shown | 0.8 mm / 0.031 in |
| Inner lead spacing | 2 mm / 0.079 in |
| Outer span at leads | 3.8 mm / 0.15 in |
| Front-view lead spacing references | 1.4 mm, 0.8 mm, total span 5.08 mm / 0.2 in |
| Drill pattern width | 10.16 mm / 0.4 in |
| Drill pattern height | 10.16 mm / 0.4 in |
| Holes explicitly called out | 4 x 1.3 mm / 4 x 0.05 in |
What the datasheet did not provide clearly
| Requested category | Result |
|---|---|
| Absolute maximum ratings table | Not present as a formal table |
| Recommended operating conditions | Not present |
| Electrical characteristics table | Not present |
| Pin descriptions table | Not present |
| Explicit package name/code | Not stated in standard IC package terms |
For this part, the datasheet is mainly a mechanical/specification sheet, not an IC-style datasheet.
4) Symbol and footprint cross-check
Findings
| Check | Result | Risk |
|---|---|---|
| Pin count: symbol vs footprint | Match at 5 | Low by itself |
| Footprint outer hole pattern vs datasheet | Match appears good at 10.16 mm x 10.16 mm with four corner holes | Low |
| Drill size for pads 1-4 | 1.3 mm in footprint, consistent with datasheet’s 4 x 1.3 mm holes | Low |
| Extra pad/hole 5 in footprint | Footprint includes pad 5, 2.2 mm drill; datasheet extract did not explicitly confirm this hole in the drilling callout | Medium |
| Symbol electrical meaning | Symbol models 5 separate terminals with no pin names and all pin types Unspecified | High |
| Part naming/BOM clarity | BOM name is generic Terminal, not the actual marketed part name | Medium |
The biggest issue is not the geometry. It is the electrical symbol definition.
This part project currently models the connector as five independent schematic terminals:
For a safety jack like this, that is potentially dangerous because:
- the real part may have one electrical contact plus mechanical support posts, or
- multiple conductive mounting pins may be internally commoned.
If the symbol exposes all five as separate electrical pins, a user could:
- route only one of them and leave the others floating,
- connect different nets to pins that are physically the same conductor,
- create false ERC behavior,
- produce a PCB that is electrically incorrect even if mechanically manufacturable.
Manufacturing / ordering / reliability flags
| Flag | Why it matters |
|---|---|
| Possible symbol misrepresentation | Can cause incorrect net assignment and board failure |
| Pad 5 needs manual confirmation against drawing | The footprint has a 2.2 mm center hole not clearly confirmed by the extracted drilling note |
| Generic BOM name | Increases risk of ordering confusion if the MPN property is ever lost downstream |
| Missing functional pin labels | Makes the part hard to use correctly in schematics |
- Footprint: mostly looks consistent with the mechanical drawing, but pad 5 / 2.2 mm drill should be verified directly against the drawing.
- Symbol: likely the main problem. The current 5-pin symbol is too ambiguous and may be electrically wrong for this part.
- Most serious risk: a designer could assign different nets to mechanically/electrically common terminals.
If you want, I can next determine whether I’m able to fix this part project by updating the symbol/pin definitions and part properties.
Check pin commoning
Inspect pad 5
Review part properties
2 days
Ready.
Reviews
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