Part Review and Datasheet Verification

adrian95

adrian95

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.

flux

I’ll review the part metadata against the official datasheet, update any missing Datasheet URL, then check symbol/footprint/pins and summarize mismatches.

flux

The part already has a Datasheet URL set, so I’m using that source for verification rather than changing it.

flux

Completed the part review and created a report: Part Review: KEL USL00-30L-A.
Key finding: the Datasheet URL was already set, so I left it unchanged; the main mismatch is that the part exposes 37 numbered terminals + MP1/MP2, while the datasheet lists 30 signal contacts, so pins 31–37 need confirmation as shell/ground terminals or removal/renumbering. Pin descriptions are also missing/unspecified, and the footprint needs direct pad-geometry verification against the KEL drawing.
Fix pins and verify
Fix pin descriptions
Verify extra pins
Verify footprint geometry
Use official datasheet
9
Pin Number
9
19
Pin Number
19
22
Pin Number
22
25
Pin Number
25
30
Pin Number
30
14
Pin Number
14
5
Pin Number
5
13
Pin Number
13
34
Pin Number
34
15
Pin Number
15
8
Pin Number
8
3
Pin Number
3
31
Pin Number
31
37
Pin Number
37
10
Pin Number
10
20
Pin Number
20
12
Pin Number
12
21
Pin Number
21
24
Pin Number
24
1
Pin Number
1
2
Pin Number
2
35
Pin Number
35
MP2
Pin Number
MP2
26
Pin Number
26
11
Pin Number
11
16
Pin Number
16
4
Pin Number
4
23
Pin Number
23
27
Pin Number
27
33
Pin Number
33
18
Pin Number
18
6
Pin Number
6
32
Pin Number
32
29
Pin Number
29
7
Pin Number
7
MP1
Pin Number
MP1
36
Pin Number
36
17
Pin Number
17
28
Pin Number
28

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Part Review: KEL USL00-30L-A
Reviewed project metadata
  • Project / part: USL00-30L-A
  • Published part UID: 53d9e4ed-f85f-4975-9fb9-d42125d46701
  • Manufacturer Name: KEL CORPORATION
  • Manufacturer Part Number: USL00-30L-A
  • Designator Prefix: J
  • Datasheet URL currently set: https://4donline.ihs.com/images/VipMasterIC/IC/KELC/KELCS00045/KELCS00045-1.pdf?hkey=EF798316E3902B6ED9A73243A3159BB0
The Datasheet URL property was already populated, so it was not changed. The OCR datasheet source also references KEL official sources:
  • Product page: https://kelconnectors.com/product/usl-series/
  • Catalog PDF: https://kelconnectors.com/wp-content/uploads/assets/product/catalog/pdf/c_usl_en.pdf
  • Drawing PDF: https://kelconnectors.com/wp-content/uploads/assets/product/drawing/pdf/w_P39387_USL00-xxL-x.pdf
Key datasheet specifications
  • Series / description: USL Series, 0.4 mm pitch micro-coaxial cable connector, PCB-side receptacle, right-angle type
  • Part number: USL00-30L-A
  • Number of signal contacts: 30
  • Pitch: 0.4 mm
  • Mounting: Surface mount, right angle
  • Packaging suffix A: 500 pcs/reel, embossed tape
  • Mated height: 1.0 mm
  • Mating width: 5.6 mm
  • Applicable cable: #42 AWG micro coaxial cable
  • Rated current: 0.25 A/contact
  • Contact resistance: 100 mΩ max
  • Dielectric withstand voltage: 200 VAC for 1 minute
  • Insulation resistance: 100 MΩ min at 250 VDC
  • Operating temperature: -40°C to +85°C
  • Insulator: Glass-filled LCP, UL94V-0, black
  • Contact material/plating: Copper alloy, gold over nickel
  • Shell material/plating: Copper alloy, tin-copper over nickel
Mechanical / land-pattern data extracted
For USL00-30L-□:

Table

ParameterValue
A16.6 mm
B14.1 mm
C11.6 mm
D9.6 mm
E1.0 mm
F16.8 mm
Recommended land pattern notes:
  • Signal pad pitch: 0.4 ± 0.03 mm
  • Signal pad width: 0.2 ± 0.03 mm
  • Signal pad span C: 11.6 ± 0.05 mm
  • Overall land-pattern span F: 16.8 ± 0.1 mm
  • Ground/common area span D: 9.6 ± 0.1 mm
  • Ground/common area dimension E: 1.0 ± 0.05 mm
  • Ground terminal pitch: 1.6 ± 0.1 mm
  • Datasheet note: hatched shell open area should have no copper pattern; ground mounting is recommended.
Schematic symbol review
Observed symbol terminals:
  • Signal-style numbered terminals: 1 through 37
  • Mechanical/mount terminals: MP1, MP2
  • Total schematic terminals/pads: 39
  • All terminal components have Pin Type: Unspecified
  • No terminal-specific Pin Description properties are populated.
Symbol mismatches / concerns
  1. Datasheet contact count is 30, but the Flux symbol exposes numbered terminals 1–37 plus MP1/MP2.
    • This may be intentional if terminals 31–37 represent shell/ground tabs from the land pattern, but the current symbol does not label them that way.
    • If the part is meant to expose only electrical signal contacts, pins 31–37 are likely extra.
    • If pins 31–37 are shell/ground terminals, they should be described explicitly as shell/ground/mounting contacts and separated from the 30 signal contacts.
  2. Pin descriptions are missing.
    • All 39 terminals are currently Unspecified and have no functional description.
    • Recommended cleanup: describe pins 1–30 as signal/contact pins and describe MP1/MP2 and any shell/ground pads according to the KEL drawing.
  3. Pin grouping/sections are not defined beyond generic Terminal components.
    • Recommended grouping: Contacts for 1–30, Shell/Ground for shell ground lands if applicable, and Mechanical for MP1/MP2.
Footprint review
Observed footprint/layout data:
  • Layout node count includes 37 numbered pads + MP1 + MP2 = 39 pads, plus footprint containers and silk/fab geometry.
  • Silk/fab outline spans approximately 16.6 mm wide in the visible outline, matching the datasheet body dimension A = 16.6 mm.
  • Outer visible silk/fab span is approximately 19.6 mm wide, plausibly covering the full mechanical/keepout envelope beyond the connector body.
  • The footprint includes a pin-1 style marker near the left side.
Footprint mismatches / concerns
  • The available layout inspection did not expose individual pad dimensions/coordinates in detail, so I could not fully verify the 0.4 mm pitch, 0.2 mm pad width, C/D/E/F land-pattern dimensions, or no-copper shell keepout from tool-visible data.
  • The pad count concern mirrors the symbol concern: 39 footprint pads vs 30 datasheet signal contacts. This may be correct only if the extra 7 numbered pads are shell/ground lands plus 2 mechanical pads.
  • No project assets were listed as footprint assets, but the default footprint exists in the layout tree.
Library availability
A Flux library search did not find an exact library match for KEL USL00-30L-A. Similar 30-position 0.4 mm board-to-board connectors were found, but they are not substitutes for this micro-coax receptacle footprint.
  1. Confirm from KEL drawing P39387 whether numbered pads 31–37 are shell/ground terminals.
  2. If yes, update pin descriptions/types:
    • Pins 1–30: signal contacts / micro-coax contacts
    • Pins 31–37: shell/ground terminals, if confirmed
    • MP1/MP2: mechanical mounting/ground shell pads, if applicable
  3. If no, remove or renumber extra terminals so the symbol exposes only the 30 contacts plus documented mechanical/shell pads.
  4. Verify footprint pad geometry directly against the official KEL drawing: pitch 0.4 mm, pad width 0.2 mm, C = 11.6 mm, F = 16.8 mm, and no-copper keepout in the hatched shell open area.
  5. Consider updating the Datasheet URL to the official KEL catalog or drawing URL for long-term stability, even though the property was already populated and was therefore left unchanged in this pass.

  • Reviewed project metadata

  • Key datasheet specifications

  • Mechanical / land-pattern data extracted

  • Schematic symbol review

  • Symbol mismatches / concerns

  • Footprint review

  • Footprint mismatches / concerns

  • Library availability

  • Recommended fixes

Documents

Assets

kicad_mod

USL00-30L-A

USL0030LA.kicad_modFootprint
USL00-30L-A

USL00-30L-A

USL00-30L-A Symbol.svgDefault
USL00-30L-A-thumb.png

USL00-30L-A-thumb.png

USL00-30L-A-thumbThumbnail
stp

USL00-30L-A

usl00-30l_p0-4_l16-6_w2-75.stp3D Model

USL00-30L-A

USL00-30L-A thumbnail
30 Position Connector Receptacle 0.016" (0.40mm) Surface Mount, Right Angle
USL00-30L-A is a 30-position, 0.4 mm pitch right-angle receptacle connector from the KEL USL Series, designed for high-density connections using micro coaxial cables in compact electronic equipment. Its ultra-low profile design, reliable IDC termination, and multiple ground contacts make it suitable for high-speed signal transmission applications such as LCD panels, cameras, industrial electronics, and embedded systems.
Key Features 30-position receptacle connector 0.4 mm contact pitch for high-density designs Right-angle surface-mount PCB mounting Ultra-low profile height of approximately 1.0 mm Designed for #42 AWG micro coaxial cables IDC (Insulation Displacement Contact) termination for reliable cable connection Multiple ground terminals for improved EMI/EMS performance Metal shell construction for enhanced shielding and mechanical strength Gold-plated contacts for reliable electrical performance Rated current: 0.25 A per contact Voltage rating: 200 VAC Operating temperature range: −40°C to +85°C Latch-lock mechanism for secure mating connection RoHS compliant and suitable for compact high-speed signal applications
#KEL #USL0030LA #MicroCoaxConnector #BoardToCableConnector #FFCConnector #HighDensityConnector #SMTConnector #RightAngleConnector #EmbeddedSystems #IndustrialElectronics #SignalIntegrity #ElectronicComponents #PCBDesign #MicroCoax #InterconnectSolutions

Properties

USL00-30L-A

KEL CORPORATION

Connector

kelconnectors.com/wp-content/uploads/assets/product/catalog/pdf/c_usl_en.pdf

J

parametric-v1

creativecommons.org/licenses/by/4.0/

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