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U.FL-R-SMT-1(80)

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Hirose U.FL-R-SMT-1(80) surface-mount U.FL micro coaxial receptacle, 50 Ohm, 3.0 x 2.6 mm, 1.25 mm high, 10,000 pcs reel. KiCad symbol, footprint, Fusion library and 3D.

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Name Last commit message Last updated
docs Hero 16:10, provenance · John Lauer 3d ago
provenance Hero 16:10, provenance · John Lauer 3d ago
viewers Component page: symbol, footprint, Fusion library, viewers, provenance, models · John Lauer 3d ago
LICENSE Component page: symbol, footprint, Fusion library, viewers, provenance, models · John Lauer 3d ago
package.json Component page: symbol, footprint, Fusion library, viewers, provenance, models · John Lauer 3d ago
page.json Edited via adom-wiki: source · John Lauer 3d ago
README.md Component page: symbol, footprint, Fusion library, viewers, provenance, models · John Lauer 3d ago
u-fl-r-smt-1-80-hero.glb Component page: symbol, footprint, Fusion library, viewers, provenance, models · John Lauer 3d ago
u-fl-r-smt-1-80-hero.overlay.json Component page: symbol, footprint, Fusion library, viewers, provenance, models · John Lauer 3d ago
u-fl-r-smt-1-80.glb Component page: symbol, footprint, Fusion library, viewers, provenance, models · John Lauer 3d ago
u-fl-r-smt-1-80.kicad_mod Component page: symbol, footprint, Fusion library, viewers, provenance, models · John Lauer 3d ago
u-fl-r-smt-1-80.kicad_sym Component page: symbol, footprint, Fusion library, viewers, provenance, models · John Lauer 3d ago
u-fl-r-smt-1-80.lbr Component page: symbol, footprint, Fusion library, viewers, provenance, models · John Lauer 3d ago
u-fl-r-smt-1-80.step Component page: symbol, footprint, Fusion library, viewers, provenance, models · John Lauer 3d ago

U.FL-R-SMT-1(80)

Hirose Electric · RF coaxial connectors (U.FL) · U.FL receptacle, 3.0 x 2.6 x 1.25 mm, SMT

The Hirose U.FL-R-SMT-1 is the standard surface-mount U.FL micro coaxial receptacle: a 3.0 x 2.6 mm footprint, 1.25 mm high, 50 Ohm, for antenna and RF test connections with a mated height of 1.9 to 2.4 mm depending on the plug. The (80) suffix is the 10,000-piece reel; (01) and (60) are the same part in a 100-piece bag and a 4,000-piece reel, and everything on this page fits all three.

Key specifications

Parameter Value
Impedance 50 Ohm (0 to 8 GHz)
VSWR 1.3 max (0.045 to 6 GHz), 1.4 max (6 to 8 GHz)
Operating temperature -40 C to +105 C
Mating cycles 30
Contact resistance centre 20 mOhm max, outer 10 mOhm max
Size 3.0 x 2.6 mm footprint, 1.25 mm high
Shell Silver plated
Packing (80) = 10,000 pcs per reel
Hirose HRS number CL0331-0472-2-80

Source: Hirose spec sheet ELC4-302540-86, catalog p.12.

Pinout

Pin Name Type Function
1 SIG passive Centre contact (signal). One 1.0 x 1.05 mm pad.
2 GND passive Outer contact (ground shell). Two 1.05 x 2.2 mm pads, both numbered 2.

Footprint

Pads follow Hirose's recommended PCB mounting pattern (drawing EDC3-302540-86, also catalog p.12): two 1.05 x 2.2 mm ground pads 4.0 mm overall and one 1.0 x 1.05 mm signal pad whose near edge is 1.0 mm from the coax axis. The origin is the coax axis. Paste apertures follow the recommended metal mask (0.10 to 0.12 mm stencil). The F.Cu keep-out between the pads carries Hirose's note: no conductive traces in this area.

3D models

All 3D models on this page are AI-created from the manufacturer's dimensioned drawings (no manufacturer CAD file is used or redistributed). They are Z-up, in millimetres, seated on the PCB top surface (z = 0) at the footprint origin, so the footprint's model reference needs no offset or rotation. The builder script is in provenance/tools/.

File What it is
u-fl-r-smt-1-80.step / u-fl-r-smt-1-80.glb Plain model (also the board-use model)
u-fl-r-smt-1-80-hero.glb Page model only: the board-use model plus teal dashed pad outlines, silkscreen with pin 1 and pad signal names (adom-hero 1.4). Do not place it on a board.

No part number is etched on this model. No clear flat surface: the top is the round mating shell around the centre contact (the planner's mark would float across the mating opening) and the 0.35 mm housing walls cannot hold the 16-character MPN legibly. The plain model is the board-use model.

Sourcing

Distributor Part number Link
Mouser 798-UFLRSMT180 https://www.mouser.com/en/ProductDetail/Hirose-Connector/U.FL-R-SMT-180?qs=PABxe4V6HDqFClp15N8Kig%3D%3D
DigiKey 26-U.FL-R-SMT-1(80)TR-ND https://www.digikey.com/en/products/detail/hirose-electric-co-ltd/U-FL-R-SMT-1-80/3978495
LCSC C88374 https://www.lcsc.com/product-detail/C88374.html

Distributor numbers checked on 2026-10-17 with adom-parts-search; check current stock and price at the links.

Manufacturer and resources

Resource Link
Product page https://www.hirose.com/en/product/p/CL0331-0472-2-80
Hirose drawing EDC3-302540-86, U.FL-R-SMT-1(80), CL0331-0472-2-80 (09.05.2025) https://www.hirose.com/api/v1/products/CL0331-0472-2-80/documents/drawing_2d/content?lang=EN
Hirose specification sheet ELC4-302540-86, U.FL-R-SMT-1(80) https://www.hirose.com/en/product/p/CL0331-0472-2-80
Hirose U.FL series catalog (Aug.1.2025), p.12 receptacle outline, recommended PCB mounting pattern and metal mask https://mm.digikey.com/Volume0/opasdata/d220001/medias/docus/8850/PdfFile_828479.pdf
Hirose 3D model U.FL-R-SMT-1.stp (zip CL03310472280_3dstep) https://www.hirose.com/api/v1/products/CL0331-0472-2-80/documents/model_3d_step/content

Manufacturer documents are linked, not copied: download them from the manufacturer.

Files

File Contents
u-fl-r-smt-1-80.kicad_sym KiCad symbol with MPN, manufacturer and distributor fields
u-fl-r-smt-1-80.kicad_mod KiCad footprint
u-fl-r-smt-1-80.lbr Fusion 360 / EAGLE library (adom-lbr, lint clean)
viewers/symbol.html, viewers/footprint.html Interactive embeds
u-fl-r-smt-1-80-hero.overlay.json Hero artwork sidecar: pads, labels, alignment
provenance/provenance.json Per-file provenance: source, classification, SHA-256, assumptions
provenance/tools/ Builder script for the AI-created STEP
LICENSE CC BY 4.0 for the Adom-authored files

Provenance

Every file is classified in provenance/provenance.json as source-derived (written from a cited manufacturer document), AI-created (modelled from cited drawings) or derived (generated by a tool), with its SHA-256 and the source document's revision, retrieval date and hash.

Open items:

  • component-hero align guard reports FAIL (centre offset 0.475 mm > 0.32 mm tolerance). Cause: the Hirose land pattern is asymmetric (SIG pad centred 1.525 mm from the coax axis, GND pads centred on it) and the housing and the unsoldered rear shell tab also sit on the seating plane, so the bounding-box heuristic cannot centre. The independent per-pad check passes and the placement matches EDC3-302540-86.
  • No virtual MPN mark (see mpn_marking)
  • If the Hirose STEP is wanted, Hirose's written permission is required

License

The Adom-authored files are CC BY 4.0. Manufacturer documents and trademarks remain their owners'; none are redistributed here.