(private workspace)P353 / Source-observed physical study
Hirose U.FL
U.FL-R-SMT-1
Top view, contact detail omitted · Board header
Not to scale. Technical and rights review pending.
Inspect view & provenance (private workspace)P353 / Micro RF coax / Connector
Hirose U.FL micro-coaxial RF connector
Hirose U.FL is a miniature coaxial RF family with cable plugs and PCB-mounted receptacles. Member configurations differ in cable size and mating height.
Also called U.FL U.FL-R-SMT-1 U.FL coax Hirose UFL U.FL antenna connector UMCC U.FL
This is the board receptacle, not a cable-end microcoax plug. Do not identify an RF pair by a generic tiny round shape.
Look for
Look for a very small coax cable ending in a low-profile snap-style plug, and the matching circular board receptacle; confirm exact Hirose codes before treating it as U.FL.
Claim inspection dates: 2026-10-09, 2026-10-11, 2026-10-15, 2026-10-22 · Independent review pending
Three-quarter view Computer-generated illustration with prior AI visual review. Not a photograph, measurement or compatibility check. Independent technical and rights review pending.
Mating face Computer-generated illustration with prior AI visual review. Not a photograph, measurement or compatibility check. Independent technical and rights review pending.
Fitted in place Computer-generated illustration with prior AI visual review. Not a photograph, measurement or compatibility check. Independent technical and rights review pending.
Recognition drawing Original schematic, not to scale. Drawing review pending.
Field answer / P353 · Source-checked, human review pending
Is this micro-coax connector really Hirose U.FL?
First answerHirose U.FL is a miniature coaxial RF family with cable plugs and PCB-mounted receptacles. Member configurations differ in cable size and mating height.
Next observation: Match the precise cable plug and board receptacle part numbers and manufacturer service procedure; do not trial-mate or rotate a live miniature RF lead.
What this does not establish
Tiny U.FL-like and MHF-family parts cannot be approved as interchangeable from a photograph. A board-receptacle drawing is not a complete mated-height assembly drawing.
Verify before choosing a cable or part
- Power the device off and consult service documentation before inspection; avoid repeated trial fitting or rotating a connected antenna lead.
- Inspect the cable assembly and board maker codes; compare Hirose U.FL-R-SMT-1 receptacle and U.FL-LP(V)-040HF / U.FL-LP-040HF plug options in the original catalog.
- Follow manufacturer handling/tool guidance and confirm the precise mated counterpart; a visual similarity is not an approved cross-vendor mating pair.
Compare the likely look-alikes
Inspect the 3 inherited evidence claims and source limits
These are the existing, individually scoped observations—not fresh source inspections, a universal pinout, approved geometry or a device-specific compatibility verdict.
C353A / canonical evidence anchor — Hirose specifies U.FL as a miniature SMT micro-coaxial series with nominal series mated-height variants; one label does not fix a universal height or RF limit.
Manufacturer-named series/part-number identification only, not generic mating, powered operation, radio performance or electrical safety validation. · source checked; independent sign-off pending.
C353B / canonical evidence anchor — Hirose lists U.FL-R-SMT-1(60) receptacles and U.FL-LP(V)-040HF / U.FL-LP-040HF cable-plug types with different mated-height options.
Manufacturer-named series/part-number identification only, not generic mating, powered operation, radio performance or electrical safety validation. · source checked; independent sign-off pending.
C353C / canonical evidence anchor — The U.FL catalog depicts U.FL-R-SMT-1 as a board receptacle; its stand-alone receptacle view is not a complete plug-and-receptacle mated-height drawing.
Separate the photographed or drawn component role from the assembly specification. · source checked; independent sign-off pending.
Shape, plug/socket view, contact roles and exact model capability must be checked separately. Review source authority and publication status ↓
Image inspection / P353
See the view. Check its scope.
1 registered view for this reference. Different part examples are not automatically mates; all remain not to scale and independently unapproved.
(private workspace)Network notes / Miniature RF / P353
Which height belongs to the receptacle, and which to the mated pair?
The retained Hirose evidence distinguishes the board receptacle from specified plug variants and the height of their assembled pair. A standalone receptacle dimension cannot be reused as a universal installed cable-assembly height.
Identify first
Read the part and the device.
Identify the exact receptacle and cable-plug variant from the board or equipment documentation. “Tiny snap-on RF” is not an adequate family identification.
Still unresolved
Keep this requirement open.
Clearance for an unidentified plug, cross-family mating, cable suitability and repeated insertion condition remain unverified.
Explicit source exclusion · named example only
Can a standalone micro-RF receptacle height stand in for every mated assembly?
The retained drawings identify receptacle and named mated-assembly dimensions separately.
Boundary. No universal cross-family clearance or mating is established.
Next check. Match both halves and the dimension’s exact assembly context.
S480 · S481 · C353C (private workspace) · C355C (private workspace)
Before choosing the cable or component
- Find the device’s exact receptacle and approved cable-plug part numbers.
- Read the drawing’s role and whether the dimension is standalone or fully mated.
- Use the manufacturer’s handling guidance; do not trial-fit a look-alike connector.
Read the evidence and its scope · 3 observations
C353A (private workspace) — Hirose specifies U.FL as a miniature SMT micro-coaxial series with nominal series mated-height variants; one label does not fix a universal height or RF limit.
Manufacturer-named series/part-number identification only, not generic mating, powered operation, radio performance or electrical safety validation.
C353B (private workspace) — Hirose lists U.FL-R-SMT-1(60) receptacles and U.FL-LP(V)-040HF / U.FL-LP-040HF cable-plug types with different mated-height options.
Manufacturer-named series/part-number identification only, not generic mating, powered operation, radio performance or electrical safety validation.
C353C (private workspace) — The U.FL catalog depicts U.FL-R-SMT-1 as a board receptacle; its stand-alone receptacle view is not a complete plug-and-receptacle mated-height drawing.
Separate the photographed or drawn component role from the assembly specification.
Source interpretation is not independent engineering review, hardware testing, wiring advice or a public-release approval.
Visual atlas / Series 02 / P353
Read the physical clue.
What this view supports
- A circular interface on a small board-mount base
- The receptacle alone is not the full mated assembly
What remains unknown
The central contact and detailed shell/key geometry are omitted. No cross-family mating, height ratio or RF limit is inferred.
The next useful check
Read the exact receptacle and cable-plug codes and check the manufacturer mating and handling documents.
1 added source-scoped observations
C353C The U.FL catalog depicts U.FL-R-SMT-1 as a board receptacle; its stand-alone receptacle view is not a complete plug-and-receptacle mated-height drawing.
Separate the photographed or drawn component role from the assembly specification. Source checked 2026-10-11; independent review pending. S480 · Evidence trail → (private workspace)
Exact source view, limits and rights
Visual inspection 2026-10-11. AI-assisted source inspection; independent drawing and rights reviews pending. These are original qualitative interpretations, not mechanical drawings, pinouts or approved connections.
Independent simplified vector interpretation and original factual paraphrase only. No manufacturer image, PDF, CAD, logo or traced path is redistributed. Independent technical and rights assessment remains pending.
- S480 · Hirose Electric — U.FL catalog — U.FL-R-SMT-1 receptacle
PDF page 12 of 34: U.FL-R-SMT-1(01)/(60)/(80) receptacle top and side views.
Board receptacle, not a cable plug or a complete mated assembly; detail omitted in original art. Only the exact named source/example supports the observation. No universal mating, wiring, maximum rating or mechanical tolerance is inferred. Live catalog retrieval date recorded; no revision inferred from a retrieval header.
- S464 · Hirose Electric — Hirose U.FL Series product catalog
Pages 6–12 U.FL-LP(V)-040HF vs U.FL-LP-040HF and U.FL-R-SMT-1 receptacle; p33 handling
Product-number example; vertical-axis handling note and height variants, without reproducing CAD. Product mating, rated cycles, connector geometry and cable harness must be selected against current full part documentation.
Canonical evidence is retained separately. Existing claim dates are unchanged; only new V118 claims have a new inspection date. No live electrical, energized probing, forced mating or optical-port inspection is recommended.
V117 / READER FIELD GUIDE / COAX & RF
Before you connect or replace
Micro RF needs the exact series, not the nickname
No. Hirose U.FL and I-PEX MHF I/MHF 4 are distinct product families. The exact plug, receptacle, cable outer diameter and intended mated height must be confirmed from makers.
Three checks and exact source trail ↗Editorial decision guidance only. A connector identity or nominal pitch does not establish approved mating, safe wiring or a supported device combination.
REPAIR FIELD NOTES / Miniature RF coax & antennas
First verify the exact manufacturer series
U.FL requires an actual Hirose series match
No. Hirose U.FL is a documented miniature coaxial series with particular plug and receptacle variants, while I-PEX defines separate MHF families. Visual size alone is inadequate. Identify the device and cable part numbers and check the maker’s catalog before any mating attempt.
Avoid: Equating U.FL, I-PEX MHF I and MHF 4 because their assembled plugs are visually tiny.
Full source-scoped reading and three practical checks ↗A correct U.FL pair still needs approved handling
Hirose’s documented handling instructions emphasize axial alignment and supported extraction methods for the actual series variant. The field guide does not supply a universal repair procedure: use the original equipment service instructions and the correct U.FL cable/receptacle documentation.
Avoid: Using the cable wire as a handle can lift or damage the micro-coax board socket.
Full source-scoped reading and three practical checks ↗
These notes add editorial context to the original canonical reference; they do not change its claim IDs or prove mating, wiring or polarity.
The useful distinction
Recognize it. Then verify it.
Hirose U.FL is a miniature coaxial RF family with cable plugs and PCB-mounted receptacles. Member configurations differ in cable size and mating height. [C353A]
Hirose lists U.FL-R-SMT-1(60) receptacles and U.FL-LP(V)-040HF / U.FL-LP-040HF cable-plug types with different mated-height options. [C353B]
The U.FL catalog depicts U.FL-R-SMT-1 as a board receptacle; its stand-alone receptacle view is not a complete plug-and-receptacle mated-height drawing. [C353C]
Hirose's U.FL series listing spans different maximum RF-frequency entries and mating-cycle classes; values on the series filter cannot be assigned to an unidentified member or used to approve cross-vendor mating. An exact Hirose part identifier and matching product documentation are required. [C353D]
Hirose U.FL-R-SMT-1(01): mounting: surface-mount; shell construction: Phosphor bronze receptacle shell with silver plating; insulator: Milky-white LCP, UL94V-0. Only Hirose U.FL-R-SMT-1(01); no family-wide generalization. [C353E]
Source-scoped identification facts
Each value retains its exact example, role and measurement axis. Facts from different parts must not be combined into an invented component.
| Connector role | Straight SMT receptacle (Hirose U.FL-R-SMT-1(01))S480Source-scoped examples are separate; select the exact variant and measured axis. Hirose U.FL-R-SMT-1(01). Named primary-source example only. Identification facts do not certify mating, electrical compatibility, fabrication or powered use. |
|---|---|
| Mounting | surface-mount (Claim C353A); surface-mount (Claim C353B); surface-mount (Claim C353C); board (Claim C353C); surface-mount (Hirose U.FL-R-SMT-1(01))S463 · S464 · S480 · S480Source-scoped examples are separate; select the exact variant and measured axis. Manufacturer-named series/part-number identification only, not generic mating, powered operation, radio performance or electrical safety validation. Separate the photographed or drawn component role from the assembly specification. Hirose U.FL-R-SMT-1(01). Named primary-source example only. Identification facts do not certify mating, electrical compatibility, fabrication or powered use. |
| Shell / form | Silver-plated receptacle shell (Hirose U.FL-R-SMT-1(01))S480Source-scoped examples are separate; select the exact variant and measured axis. Hirose U.FL-R-SMT-1(01). Named primary-source example only. Identification facts do not certify mating, electrical compatibility, fabrication or powered use. |
| Manufacturer | Hirose Electric (Hirose U.FL-R-SMT-1(01))S480Source-scoped examples are separate; select the exact variant and measured axis. Hirose U.FL-R-SMT-1(01). Named primary-source example only. Identification facts do not certify mating, electrical compatibility, fabrication or powered use. |
| Series | U.FL (Hirose U.FL-R-SMT-1(01))S480Source-scoped examples are separate; select the exact variant and measured axis. Hirose U.FL-R-SMT-1(01). Named primary-source example only. Identification facts do not certify mating, electrical compatibility, fabrication or powered use. |
| Exact part / implementation | U.FL-R-SMT-1(01) (Hirose U.FL-R-SMT-1(01))S480Source-scoped examples are separate; select the exact variant and measured axis. Hirose U.FL-R-SMT-1(01). Named primary-source example only. Identification facts do not certify mating, electrical compatibility, fabrication or powered use. |
Not recorded: Nominal contacts, Positions / cavity span, Populated contacts, Contact rows, Contact pitch, Dimensions / axis, Contact gender / arrangement, Coupling / latch, Keying / polarization, Recorded markings, View convention. Unknown fields stay unknown; illustrations supply no measurements or pin assignments.
Report a correction to these facts →Bounded facts, visible unknowns
Specifications and limits
| Manufacturer form | U.FL Series; cable plug + PCB receptacle [C353A] |
|---|---|
| Example referenced parts | U.FL-R-SMT-1(60) and U.FL-LP(V)-040HF; not a blanket mating approval [C353B] |
| Part-scope RF figures | U.FL series variants have different performance/lifetime classes; no series maximum is a part guarantee. [C353D] |
| Mechanical dimensions | Manufacturer describes series- or selected part-specific mated-height values in the sourced text; the drawing contains no usable dimensions or manufacturing tolerance. |
| Engineering pinout | Source-checked engineering profile available; independent review pending. Open engineering profile → |
| Verified device list | Not included. Check exact device and accessory documentation. |
A boundary, not an omission to guess around.
Power the device off and consult service documentation before inspection; avoid repeated trial fitting or rotating a connected antenna lead. Inspect the cable assembly and board maker codes; compare Hirose U.FL-R-SMT-1 receptacle and U.FL-LP(V)-040HF / U.FL-LP-040HF plug options in the original catalog. Follow manufacturer handling/tool guidance and confirm the precise mated counterpart; a visual similarity is not an approved cross-vendor mating pair.
Before you connect
What to check
- Power the device off and consult service documentation before inspection; avoid repeated trial fitting or rotating a connected antenna lead.
- Inspect the cable assembly and board maker codes; compare Hirose U.FL-R-SMT-1 receptacle and U.FL-LP(V)-040HF / U.FL-LP-040HF plug options in the original catalog.
- Follow manufacturer handling/tool guidance and confirm the precise mated counterpart; a visual similarity is not an approved cross-vendor mating pair.
What remains unknown
No unsupported U.FL↔MHF intermateability, no generic U.FL electrical rating and no board wiring or assembly work instructions. Use manufacturer documentation for exact assembly and target equipment before connection.
Your next step
Move from the form to the requirement.
The source trail
Evidence for this page
AI-assisted inspection is not independent engineering review. Source scope and access limitations are disclosed below. Procedural checklists are editorial requirements, not hardware measurements.
Back to first citation ↑
C353ASource checked · pending review
Hirose specifies U.FL as a miniature SMT micro-coaxial series with nominal series mated-height variants; one label does not fix a universal height or RF limit.
Hirose Electric · Hirose U.FL Series overview ↗S463: full source recordInspect review dependencies → (private workspace)Back to first citation ↑
C353BSource checked · pending review
Hirose lists U.FL-R-SMT-1(60) receptacles and U.FL-LP(V)-040HF / U.FL-LP-040HF cable-plug types with different mated-height options.
Hirose Electric · Hirose U.FL Series product catalog ↗S464: full source recordInspect review dependencies → (private workspace)Back to first citation ↑
C353CSource checked · pending review
The U.FL catalog depicts U.FL-R-SMT-1 as a board receptacle; its stand-alone receptacle view is not a complete plug-and-receptacle mated-height drawing.
Hirose Electric · U.FL catalog — U.FL-R-SMT-1 receptacle ↗S480: full source recordInspect review dependencies → (private workspace)Back to first citation ↑
C353DSource checked · pending review
Hirose's U.FL series listing spans different maximum RF-frequency entries and mating-cycle classes; values on the series filter cannot be assigned to an unidentified member or used to approve cross-vendor mating. An exact Hirose part identifier and matching product documentation are required.
Hirose Electric · Hirose U.FL Series overview ↗S463: full source recordInspect review dependencies → (private workspace)Back to first citation ↑
Suggest a correction to this field note →C353ESource checked · pending review
Hirose U.FL-R-SMT-1(01): mounting: surface-mount; shell construction: Phosphor bronze receptacle shell with silver plating; insulator: Milky-white LCP, UL94V-0. Only Hirose U.FL-R-SMT-1(01); no family-wide generalization.
Hirose Electric · U.FL catalog — U.FL-R-SMT-1 receptacle ↗S480: full source recordInspect review dependencies → (private workspace)Follow the connection
Related field notes
Micro RF coax Connector
I-PEX MHF I micro-coaxial RF connector
MHF I is not the same family identity as MHF 4; appearance and cable diameter alone do not certify mating.
Open field note
Micro RF coax Connector
I-PEX MHF 4 low-profile micro-coaxial RF connector
The manufacturer separately documents MHF 4L mating with MHF 4; that specific qualification is not a general MHF I or U.FL compatibility statement.
Open field note
Coax Connector
SMA coaxial connector
Inspect the center contact as well as the outer shell.
Open field notePut this field note to work.
Add to discovery trayRecord an unsaved candidate (private workspace)
Candidate selection does not confirm the identity or capabilities of your physical item.
Use this reference
From identity to the right next question
RF & network / Several identities remain possible
A miniature RF socket needs an exact family
Compare the exact manufacturer family and the board-side versus cable-side part.
P353 reference · P355 reference · Inspect named view (private workspace)
An RF family resemblance does not approve a cross-family fit.
RF & network / Unconfirmed candidate
A board receptacle is not a cable-end order number
Keep the named board component separate from the matching cable-assembly requirement.
P355 reference · P353 reference · Inspect named view (private workspace)
The depicted board part does not identify an approved replacement cable.
Source-qualified next step · P353
Which Hirose U.FL receptacle mates with this miniature coax lead?
What the evidence saysU.FL is a series with multiple member specifications; the series-wide performance range is not one part’s rating.
What is still unknown
Neither the series overview nor a photograph approves a U.FL-to-third-party miniature coax mate, exact RF frequency, insertion cycles or mated height.
Check before proceeding
- Read the exact PCB receptacle and cable plug manufacturer part identifiers.
- Confirm the precise mating pair and handling procedure on the relevant part pages/drawings.
- Do not repeatedly trial-fit or rotate the tiny connector to test the hypothesis.
Inspect 1 source-checked claim (independent review pending)
C353D / source-linked claim: Hirose's U.FL series listing spans different maximum RF-frequency entries and mating-cycle classes; values on the series filter cannot be assigned to an unidentified member or used to approve cross-vendor mating. An exact Hirose part identifier and matching product documentation are required.
Hirose U.FL series catalogue filter values, NOT a part-specific frequency/lifetime or cross-mating authorization · Checked 2026-10-15 · No independent approval
Original reader guidance · Not a hardware test, certified connection, independent technical review, or publication approval.