Part Audit Review
Review all available part information (MPN, package, pin count, description, properties). If no datasheet URL is already set, search the web for the official datasheet and update the part's Datasheet property with the URL. Then cross-check the schematic symbol, footprint, and pin descriptions against the datasheet. Summarize key specs and flag any mismatches.
Thought for 10 sec
I’ll audit the part metadata, source the official datasheet if needed, update the Datasheet property, then verify the symbol, footprint, and pin mapping against it.
Worked for 5 mins 14 sec
Created a project doc
Audit complete. The existing datasheet URL was already populated, so no update was needed; identity and ratings match Keystone 3568: 30 A, 500 VAC, −50°C to +145°C, four through-hole pins, and a 16.00 × 6.73 mm body.
Key flags: pin descriptions/types are missing, the two internally common pin pairs are not documented, and the footprint’s required Ø1.60 mm holes with 9.92 × 3.40 mm spacing could not be conclusively verified. Full findings are in Part Audit — Keystone Electronics 3568.
Fix metadata and verify
Update pin metadata
Document internal pairs
Verify footprint geometry
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Part Audit — Keystone Electronics 3568
Identity and current metadata
- MPN: 3568
- Manufacturer: Keystone Electronics
- Function: Vertical-entry mini automotive blade-fuse holder
- Description: Fuse Holder 30 A 500 V, 1 circuit, blade, through-hole
- Mount: Through-hole PCB mount
- Pin/pad count: 4
- Current Datasheet URL: https://www.mouser.com/datasheet/2/215/3568-742601.pdf
- Mouser order number: 534-3568
- Package/mechanical envelope: approximately 16.00 mm × 6.73 mm × 7.37 mm
The Datasheet URL was already populated, so no property update was required. The linked PDF contains the Keystone drawing for part 3568, although it is hosted by Mouser rather than on a Keystone domain.
Key datasheet specifications
- Rated current: 30 A
- Rated voltage: 500 VAC
- Temperature rating: −50 °C to +145 °C
- Fuse family: Mini automotive blade fuse; Littelfuse 297/997, Bussmann ATM/APM, or equivalent
- Orientation: Vertical entry
- Base: Heat-resistant nylon, Stanyl 46 or equivalent
- Contacts: 0.40 mm thick brass, tin-nickel plated
- UL recognition: E354010, USA and Canada
- PCB hole requirement: 4 holes, Ø1.60 mm minimum
- Hole pattern: 9.92 mm × 3.40 mm rectangular spacing
- Body dimensions: 16.00 mm long × 6.73 mm wide × 7.37 mm base/body height
- Drawing: Keystone 3568, revision C
Symbol review
Matches
- Four schematic terminals are present, matching the four physical PCB pins.
- The symbol visually separates the two sides of the holder.
Mismatches / missing information
- Pins have no names or descriptions. All four are generic
Terminalobjects withPin Type: Unspecified. - Electrical duplication is not documented. The datasheet drawing shows two pins per fuse clip. Therefore, two pins belong to one electrical node and the other two belong to the opposite node. The part does not currently describe these paired connections.
- Terminal numbering is not defined by the datasheet. The current numbering 1–4 is a library convention and must be mapped carefully to footprint geometry. Based on the present schematic placement, likely pairs are 1/2 and 3/4, but this should be verified against the actual pad coordinates before relying on duplicate-pin connectivity.
- Duplicate-pin/jumper behavior is not declared. If the paired pins are represented as duplicate electrical terminals, the part should explicitly model or document that behavior so ERC and connectivity reflect the internal metal clips.
- Designator prefix is
U. This is usable but nonstandard for a fuse holder;ForFHwould communicate function more clearly.
Footprint review
Matches
- Four pads exist.
- The silkscreen body outline is approximately 16.00 mm × 6.73 mm, matching the datasheet body envelope.
- A STEP model is attached.
Verification limitations / risks
- The available structured layout inspection confirmed pads 1–4 but did not expose their baked XY coordinates, copper dimensions, drill sizes, or through-hole type.
- The datasheet requires Ø1.60 mm minimum finished holes at 9.92 mm × 3.40 mm spacing. These exact values could not be conclusively read back from the current footprint representation.
- Because this is a 30 A holder, annular ring size and downstream copper/trace sizing are important; the datasheet only specifies minimum hole diameter, not the board copper needed to carry 30 A.
- The flat footprint preview rendered the outline but did not render the four pads, so a visual pad check was inconclusive.
Overall assessment
The identity, description, ratings, mount type, four-pin count, body outline, and attached datasheet are broadly consistent with Keystone 3568. The main issue is incomplete electrical metadata: the symbol does not identify the two internally common pin pairs or provide pin descriptions. Footprint hole size and pitch should be explicitly verified against the required Ø1.60 mm minimum and 9.92 mm × 3.40 mm pattern before publication or manufacturing use.
Identity and current metadata
Key datasheet specifications
Symbol review
Matches
Mismatches / missing information
Footprint review
Matches
Verification limitations / risks
Overall assessment
