Side by side

Hirose U.FL vs I-PEX MHF I

Two manufacturer-named miniature RF families. Round snap appearance is not a mating approval. Check the exact manufacturer connector and cable assembly codes; do not trial-fit.

Computer-generated illustration, not a photograph. — P353 · ConnectorHirose U.FL micro-coaxial RF connector

How they differ

Hirose U.FL micro-coaxial RF connector 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.
I-PEX MHF I micro-coaxial RF connector Identify the labeled I-PEX assembly and cable-size variant, then check the maker matrix for an MHF I plug and matching board receptacle.

At a glance

Source-scoped form facts; counts, variants and unknowns are distinct
Field	Hirose U.FL micro-coaxial RF connector	I-PEX MHF I micro-coaxial RF connector
Type	Connector	Connector
Family	Micro RF coax	Micro RF coax
Shape	miniature rf snap	miniature rf snap
Nominal contacts	Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.	Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
Positions / cavity span	Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.	Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
Contact rows	Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.	Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
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.	SMT coaxial RF receptacle (20279-001E-03); Coaxial cable plug (20278-112R-13)S465Source-scoped examples are separate; select the exact variant and measured axis. 20279-001E-03. Named primary-source example only. Identification facts do not certify mating, electrical compatibility, fabrication or powered use. 20278-112R-13. Named primary-source example only. Identification facts do not certify mating, electrical compatibility, fabrication or powered use.
Key distinction	A tiny round antenna snap does not identify its series or prove that it mates with a similarly shaped I-PEX part.	MHF I is not the same family identity as MHF 4; appearance and cable diameter alone do not certify mating.

Full evidence ledger and sources ↓

Illustrations are computer-generated with prior AI visual review; independent technical and rights review pending. A comparison is not a compatibility verdict.

This comparison stays within one evidence layer.

All selected records are Connector records. Similar layer does not mean compatible, interchangeable or safe to mate.

Families represented: Micro RF coax

The reference ledger

Read the same question across.

2 selected records · 17 fields
No score. No compatibility verdict.

On a narrow screen, scroll the table sideways or open the field-by-field reading view below. Illustrations are not a size comparison.

Comparison of selected field notes; source links accompany each documented specification
What you are comparing	P353 / ConnectorHirose U.FL micro-coaxial RF connector Identification schematic · not to scale · drawing review pending	P354 / ConnectorI-PEX MHF I micro-coaxial RF connector Identification schematic · not to scale · drawing review pending
Layer	Connector	Connector
Key distinction	A tiny round antenna snap does not identify its series or prove that it mates with a similarly shaped I-PEX part.	MHF I is not the same family identity as MHF 4; appearance and cable diameter alone do not certify mating.
Nominal contacts	Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.	Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
Positions / cavity span	Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.	Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
Populated contacts	Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.	Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
Contact rows	Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.	Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
Contact pitch	Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.	Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
Dimensions / axis	Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.	Not recordedNo qualified value remains for this contact/body field. Source context is retained in variant_notes; no value inferred from artwork or names.
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.	SMT coaxial RF receptacle (20279-001E-03); Coaxial cable plug (20278-112R-13)S465Source-scoped examples are separate; select the exact variant and measured axis. 20279-001E-03. Named primary-source example only. Identification facts do not certify mating, electrical compatibility, fabrication or powered use. 20278-112R-13. Named primary-source example only. Identification facts do not certify mating, electrical compatibility, fabrication or powered use.
Coupling / latch	Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.	Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
Keying / polarization	Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.	Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
Manufacturer form	U.FL Series; cable plug + PCB receptacleC353A	Not an equivalent field
Example referenced parts	U.FL-R-SMT-1(60) and U.FL-LP(V)-040HF; not a blanket mating approvalC353B	Not an equivalent field
Part-scope RF figures	U.FL series variants have different performance/lifetime classes; no series maximum is a part guarantee.C353D	Not an equivalent field
Family height options	Not an equivalent field	2.5 / 3.0 mm maximum, model-specificC354A
Examples, not a verified assembly	Not an equivalent field	20278-112R-13 plug; 20279-001E-03 receptacleC354B
Evidence	C353A,C353B,C353C,C353D,C353E → Independent review pending	C354A,C354B,C354C → Independent review pending

Read field by field — no sideways scrolling

The same selected records, fields, values and source links as the table. Missing fields remain non-equivalent; no values are merged.

Layer

Hirose U.FL micro-coaxial RF connectorP353 / Connector: Connector
I-PEX MHF I micro-coaxial RF connectorP354 / Connector: Connector

Key distinction

Hirose U.FL micro-coaxial RF connectorP353 / Connector: A tiny round antenna snap does not identify its series or prove that it mates with a similarly shaped I-PEX part.
I-PEX MHF I micro-coaxial RF connectorP354 / Connector: MHF I is not the same family identity as MHF 4; appearance and cable diameter alone do not certify mating.

Nominal contacts

Hirose U.FL micro-coaxial RF connectorP353 / Connector: Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
I-PEX MHF I micro-coaxial RF connectorP354 / Connector: Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.

Positions / cavity span

Hirose U.FL micro-coaxial RF connectorP353 / Connector: Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
I-PEX MHF I micro-coaxial RF connectorP354 / Connector: Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.

Populated contacts

Hirose U.FL micro-coaxial RF connectorP353 / Connector: Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
I-PEX MHF I micro-coaxial RF connectorP354 / Connector: Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.

Contact rows

Hirose U.FL micro-coaxial RF connectorP353 / Connector: Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
I-PEX MHF I micro-coaxial RF connectorP354 / Connector: Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.

Contact pitch

Hirose U.FL micro-coaxial RF connectorP353 / Connector: Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
I-PEX MHF I micro-coaxial RF connectorP354 / Connector: Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.

Dimensions / axis

Hirose U.FL micro-coaxial RF connectorP353 / Connector: Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
I-PEX MHF I micro-coaxial RF connectorP354 / Connector: Not recordedNo qualified value remains for this contact/body field. Source context is retained in variant_notes; no value inferred from artwork or names.

Connector role

Hirose U.FL micro-coaxial RF connectorP353 / Connector: 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.
I-PEX MHF I micro-coaxial RF connectorP354 / Connector: SMT coaxial RF receptacle (20279-001E-03); Coaxial cable plug (20278-112R-13)S465Source-scoped examples are separate; select the exact variant and measured axis. 20279-001E-03. Named primary-source example only. Identification facts do not certify mating, electrical compatibility, fabrication or powered use. 20278-112R-13. Named primary-source example only. Identification facts do not certify mating, electrical compatibility, fabrication or powered use.

Coupling / latch

Hirose U.FL micro-coaxial RF connectorP353 / Connector: Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
I-PEX MHF I micro-coaxial RF connectorP354 / Connector: Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.

Keying / polarization

Hirose U.FL micro-coaxial RF connectorP353 / Connector: Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
I-PEX MHF I micro-coaxial RF connectorP354 / Connector: Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.

Manufacturer form

Hirose U.FL micro-coaxial RF connectorP353 / Connector: U.FL Series; cable plug + PCB receptacleC353A
I-PEX MHF I micro-coaxial RF connectorP354 / Connector: Not an equivalent field

Example referenced parts

Hirose U.FL micro-coaxial RF connectorP353 / Connector: U.FL-R-SMT-1(60) and U.FL-LP(V)-040HF; not a blanket mating approvalC353B
I-PEX MHF I micro-coaxial RF connectorP354 / Connector: Not an equivalent field

Part-scope RF figures

Hirose U.FL micro-coaxial RF connectorP353 / Connector: U.FL series variants have different performance/lifetime classes; no series maximum is a part guarantee.C353D
I-PEX MHF I micro-coaxial RF connectorP354 / Connector: Not an equivalent field

Family height options

Hirose U.FL micro-coaxial RF connectorP353 / Connector: Not an equivalent field
I-PEX MHF I micro-coaxial RF connectorP354 / Connector: 2.5 / 3.0 mm maximum, model-specificC354A

Examples, not a verified assembly

Hirose U.FL micro-coaxial RF connectorP353 / Connector: Not an equivalent field
I-PEX MHF I micro-coaxial RF connectorP354 / Connector: 20278-112R-13 plug; 20279-001E-03 receptacleC354B

Evidence

Hirose U.FL micro-coaxial RF connectorP353 / Connector: C353A,C353B,C353C,C353D,C353E →
Independent review pending
I-PEX MHF I micro-coaxial RF connectorP354 / Connector: C354A,C354B,C354C →
Independent review pending

Your next step

Use the distinction in context.

Open the field notes Read source-linked facts and limitations.Compare another pair Start from a common confusion.Check a connection A comparison is not a compatibility verdict.

Continue the distinction

Compare next

Browse every comparison →

U.FL, MHF I and MHF 4 identificationDifferent manufacturer families can share a miniature coax snap appearance. Part numbers and a documented plug–receptacle match govern selection, not how close they look.I-PEX MHF I vs MHF 4I-PEX documents distinct height families (MHF I 2.5/3.0 mm maximum variants versus MHF 4 1.2 mm). MHF 4L has manufacturer-described MHF 4 mating; do not extend that to MHF I.BNC vs TNC coaxial connectorsBNC uses bayonet coupling while TNC uses threaded coupling. Connector family, impedance and application still need to be verified independently.DisplayPort connector vs DisplayPort 2.1The full-size DisplayPort connector does not identify the implemented DisplayPort generation, link rate or optional features.DisplayPort vs Mini DisplayPortFull-size DisplayPort and Mini DisplayPort are different physical forms. Mini DisplayPort shape also appeared on Thunderbolt 1/2 products, so function still needs device evidence.DVI-D dual-link vs DVI-I dual-linkDVI-D and DVI-I use related shells but have different contact arrangements. The analog-contact area is a key physical distinction.

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Add a field note

Evidence behind this page

Scope first. Source second. Approval separate.

4 linked sources · 8 scoped claims · 0 sources with inspection/access flags.

Page scope: Evidence behind the compared records; the editorial comparison still needs separate review.

Assessment 2026-10-22 · earliest scheduled source review 2027-01-07. This is a recorded-date assessment, not a live source check. Page-level independent review is not established by this panel.

Inspect 4 source scopes, access limits and dates

S463 · Hirose U.FL Series overview

Hirose Electric · Manufacturer / product-owner domain · inspected 2026-10-09 · due 2027-01-07

Within inspection window

Scoped support: Family identity and selected configurations only. Not an all-part-number electrical or physical guarantee.

Not established / limitations: Mated height varies by variant; catalogue maxima do not describe any loose unidentified specimen.

Locator: Features; mated-height range; RF frequency and model options

S464 · Hirose U.FL Series product catalog

Hirose Electric · Manufacturer / product-owner domain · inspected 2026-10-09 · due 2027-01-07

Within inspection window

Scoped support: Product-number example; vertical-axis handling note and height variants, without reproducing CAD.

Not established / limitations: Product mating, rated cycles, connector geometry and cable harness must be selected against current full part documentation.

Locator: Pages 6–12 U.FL-LP(V)-040HF vs U.FL-LP-040HF and U.FL-R-SMT-1 receptacle; p33 handling

S465 · I-PEX MHF I product page and part matrix

I-PEX · Unclassified publisher domain · inspected 2026-10-09 · due 2027-01-07

Within inspection window

Scoped support: Identifies I-PEX MHF I series, example cable plug and SMT receptacle, no cross-series mating endorsement.

Not established / limitations: Up-to-9GHz manufacturer claim is not a tested performance rating for any unnamed assembly.

Locator: Mated-height variants; RECOMMENDED PART NUMBERS: 20278-112R-13, 20279-001E-03

S480 · U.FL catalog — U.FL-R-SMT-1 receptacle

Hirose Electric · Manufacturer / product-owner domain · inspected 2026-10-11 · due 2027-01-09

Within inspection window

Scoped support: Board receptacle, not a cable plug or a complete mated assembly; detail omitted in original art.

Not established / limitations: 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.

Locator: PDF page 12 of 34: U.FL-R-SMT-1(01)/(60)/(80) receptacle top and side views.

Trace 8 claims to their source records

C353A · P353

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.

Claim scope: Manufacturer-named series/part-number identification only, not generic mating, powered operation, radio performance or electrical safety validation.

Source links: S463 · Evidence trail → (private workspace)

C353B · P353

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.

Claim scope: Manufacturer-named series/part-number identification only, not generic mating, powered operation, radio performance or electrical safety validation.

Source links: S464 · Evidence trail → (private workspace)

C353C · P353

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.

Claim scope: Separate the photographed or drawn component role from the assembly specification.

Source links: S480 · Evidence trail → (private workspace)

C353D · P353

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.

Claim scope: Hirose U.FL series catalogue filter values, NOT a part-specific frequency/lifetime or cross-mating authorization

Source links: S463 · Evidence trail → (private workspace)

C353E · P353

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.

Claim scope: Only Hirose U.FL-R-SMT-1(01); no family-wide generalization.

Source links: S480 · Evidence trail → (private workspace)

C354A · P354

I-PEX describes MHF I as a miniature RF antenna connector family with 2.5 mm and 3.0 mm maximum mated-height variants.

Claim scope: Manufacturer-named series/part-number identification only, not generic mating, powered operation, radio performance or electrical safety validation.

Source links: S465 · Evidence trail → (private workspace)

C354B · P354

I-PEX recommends MHF I plug 20278-112R-13 for 1.13 mm outside-diameter cable and receptacle 20279-001E-03 as a 3-pad surface-mount part.

Claim scope: Manufacturer-named series/part-number identification only, not generic mating, powered operation, radio performance or electrical safety validation.

Source links: S465 · Evidence trail → (private workspace)

C354C · P354

I-PEX MHF I manufacturer feature-table family: smt reference size: 3.1 x 3.0 mm; cable options: Micro-coax OD 0.81, 1.13, 1.32, 1.37, 1.8 or 2.0 mm; selection depends on plug type; rf range: Up to 9 GHz; published plug VSWR limits depend on cable diameter. Only the I-PEX MHF I manufacturer feature-table family feature table; no exact individual part properties or mating approval are established.

Claim scope: Only the I-PEX MHF I manufacturer feature-table family feature table; no exact individual part properties or mating approval are established.

Source links: S465 · Evidence trail → (private workspace)

Prepare this page for review →Read the evidence method →

Recorded evidence only. An inspection date, publisher label, source link or generated packet is not independent technical review, hardware testing, fabrication approval or a compatibility verdict.