Part Review and Datasheet Analysis
Thought for 1 min 39 sec
Part review summary
Datasheet-derived metadata
Electrical and environmental characteristics
Materials and special features
Package and mechanical dimensions
Important datasheet quality issue
Symbol vs datasheet cross-check
Footprint vs datasheet cross-check
Manufacturing / ordering / failure-risk findings
Bottom line
I completed the review in order.
- Step 1: Reviewed the available part metadata in the project.
- Step 2: No web lookup or property edit was needed because a datasheet URL is already set on the part.
- Step 3: Scanned the datasheet and extracted the available metadata.
- Step 4: Cross-checked the symbol and footprint against the datasheet.
Table
| Field | Value |
|---|---|
| MPN | 450-00308 |
| Manufacturer | Parallax |
| Description | Standard card edge connector socket, 80 positions, right-angle, through-hole |
| Mount | Through Hole |
| Datasheet URL present | Yes |
| Symbol pin count | 80 |
| Footprint pad count | 80 |
| Footprint asset | 45000308.kicad_mod |
| Project-level designator prefix property | IC |
| Schematic terminal prefix in symbol | P |
| Pin typing in symbol | Unspecified for all pins |
Table
| Category | Extracted data |
|---|---|
| Part type | 80-pin edge connector socket, right-angle |
| Mounting style | Through-hole, right-angle |
| Total positions | 80 |
| Mating card thickness | 0.062 ± 0.007 in = 1.5748 ± 0.1778 mm |
| Suggested PCB hole diameter | Ø1.0 mm in the suggested PCB layout query; another section reported Ø 0.041 ± 0.003 in = 1.0414 ± 0.0762 mm |
| Contact numbering | Odd/even numbering across sides, with ends marked 1/2 and 79/80 |
| Row identification | Datasheet drawing shows A and B sides at the mating card interface |
| Suggested PCB pattern | 4 staggered rows, 20 holes per row, 1.27 mm pitch, 1.9 mm row-to-row vertical spacing, 49.53 mm total horizontal span |
Table
| Parameter | Value found |
|---|---|
| Current rating | 0.5 A AC/DC in one result; 1 A in another result |
| Voltage rating | 500 V AC/DC |
| Contact resistance | 30 mΩ max |
| Insulation resistance | 1000 MΩ min in one result; 5000 MΩ min in another result |
| Dielectric withstand | 1000 V AC for 1 minute |
| Operating temperature | -40°C to +105°C in one result; -55°C to +105°C in another result |
| Durability | 50 cycles |
| Normal force | 100 g/pin max |
| Unmating force | 15 g/pin min |
| Insertion force | 120 g/pin max |
Table
| Item | Value found |
|---|---|
| Insulator material | Glass-filled polyester |
| Flammability | UL 94V-0 |
| Contact material | Phosphor bronze |
| Contact plating | Gold flash over nickel |
| Solder tail plating | Tin-lead over nickel |
| Special features | Polarized, right-angle, card-edge socket, accepts 0.062 in thick card |
Table
| Dimension | Value |
|---|---|
| Overall length | 4.250 in = 107.95 mm |
| Contact field span | 4.000 in = 101.6 mm |
| Overall height | 0.382 in |
| Overall depth | 0.307 in |
| Tail length below seating plane | 0.150 in |
| Body height above seating plane | 0.157 in |
| Lower body depth | 0.223 in |
| Front feature depth | 0.084 in |
| Tolerance note | Unless otherwise specified: .XX ± 0.02, .XXX ± 0.010, angles ± 2° |
Table
| Issue | Impact |
|---|---|
| The extracted datasheet content is internally inconsistent on current rating, insulation resistance, operating temperature, and hole size | This is a documentation risk. For production release, these values should be verified against the exact manufacturer PDF revision before trusting them for qualification or procurement |
Table
| Check | Result | Risk |
|---|---|---|
| Pin count | Pass - symbol has 80 pins | Low |
| Pin numbering range | Pass - symbol covers 1..80 | Low |
| A/B side labeling from datasheet | Fail - symbol shows only numeric pins, no visible A/B side labeling | High - increases risk of mirrored or side-swapped mating connections |
| Pin names/descriptions | Fail - no per-pin descriptive naming beyond numbers | Medium |
| Pin electrical type | Fail - all pins are Unspecified instead of passive connector contacts | Medium - ERC quality issue |
| Designator classification | Mismatch - project property says IC, symbol terminals use P, but this is a connector | Medium - can confuse reuse, search, and ordering metadata |
Table
| Check | Result | Notes |
|---|---|---|
| Pad count | Pass | 80 pads present |
| Suggested PCB layout style | Pass | Footprint uses 4 staggered rows, matching the suggested PCB layout |
| Horizontal pitch | Pass | Footprint uses 1.27 mm stepping between sequential pad numbers |
| Vertical row spacing | Pass | Footprint uses 1.9 mm row spacing |
| Total span | Pass | Footprint span aligns with the datasheet’s 49.53 mm pattern |
| Drill size | Likely pass | Footprint uses 1.0 mm drills, which matches the suggested PCB layout query; however, another datasheet extraction reported Ø 0.041 ± 0.003 in |
| Pin 1 identification | Pass | Rectangular pad 1 is present, which helps assembly/orientation |
| Mount style | Pass | Through-hole right-angle footprint is consistent |
Table
| Severity | Finding | Why it matters |
|---|---|---|
| High | Symbol lacks clear A/B side identification from the datasheet | Easy to wire the mating edge reversed even if pin numbers are technically present |
| Medium | Part metadata classifies the part like an IC instead of a connector | Can cause library confusion and wrong assumptions during reuse or selection |
| Medium | All symbol pins are typed Unspecified | Weakens ERC usefulness and can hide connectivity mistakes |
| Medium | Datasheet itself is inconsistent on several key specs | Risk of bad qualification, documentation drift, or wrong procurement assumptions |
| Low | No functional pin descriptions beyond numbers | Reduces readability and increases integration mistakes |
- The footprint appears materially consistent with the datasheet’s suggested PCB layout.
- The main risk is the schematic symbol, not the footprint.
- The two most important fixes are:
- add clear A/B side orientation labeling
- clean up metadata so the part is classified as a connector, not an IC
If you want, I can next turn this into a precise fix list for the part project.
Create fix checklist
Verify pin orientation
Check BOM metadata
