The useful distinction
Recognize it. Then verify it.
I-PEX MHF I is a maker-defined miniature RF cable-plug/SMT-receptacle family with several cable sizes and mated-height variants. [C354A]
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. [C354B]
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. [C354C]
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 | 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. |
|---|---|
| Mounting | surface-mount (Claim C354B); surface-mount (20279-001E-03)S465 · S465Source-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. 20279-001E-03. Named primary-source example only. Identification facts do not certify mating, electrical compatibility, fabrication or powered use. |
| Manufacturer | I-PEX (20279-001E-03)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. |
| Series | MHF I (20279-001E-03)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. |
| Exact part / implementation | 20279-001E-03 (20279-001E-03); 20278-112R-13 (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. |
Not recorded: Nominal contacts, Positions / cavity span, Populated contacts, Contact rows, Contact pitch, Dimensions / axis, Contact gender / arrangement, Coupling / latch, Keying / polarization, Shell / form, Recorded markings, View convention. Unknown fields stay unknown; illustrations supply no measurements or pin assignments.
Recorded variant and source limits
- Retained dimensions context (excluded from normalized contact/body field): 3.1 mm / Manufacturer SMT size / first axis. Source product-specification SMT size, not contact pitch, a mating gauge or the assembled connector height. Named primary-source example only. Identification facts do not certify mating, electrical compatibility, fabrication or powered use. Sources: S465: Product Specifications / SMT Size and Mechanical Lock; Recommended Part Numbers / plug and receptacle; variant-specific mated-height table
- Retained dimensions context (excluded from normalized contact/body field): 3 mm / Manufacturer SMT size / second axis. Source product-specification SMT size, not contact pitch, a mating gauge or the assembled connector height. Named primary-source example only. Identification facts do not certify mating, electrical compatibility, fabrication or powered use. Sources: S465: Product Specifications / SMT Size and Mechanical Lock; Recommended Part Numbers / plug and receptacle; variant-specific mated-height table
Bounded facts, visible unknowns
Specifications and limits
| Family height options | 2.5 / 3.0 mm maximum, model-specific [C354A] |
|---|---|
| Examples, not a verified assembly | 20278-112R-13 plug; 20279-001E-03 receptacle [C354B] |
| 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. |
Disconnect device power; do not pull on the coax wire or press a cable plug onto a receptacle that merely looks close. Check the I-PEX MHF I part matrix: example 20278-112R-13 plug and 20279-001E-03 3-pad receptacle; confirm actual device service numbers. Check documented mating height, cable outside diameter and allowed insertion/removal procedure for the exact chosen assembly; do not substitute MHF 4.
Before you connect
What to check
- Disconnect device power; do not pull on the coax wire or press a cable plug onto a receptacle that merely looks close.
- Check the I-PEX MHF I part matrix: example 20278-112R-13 plug and 20279-001E-03 3-pad receptacle; confirm actual device service numbers.
- Check documented mating height, cable outside diameter and allowed insertion/removal procedure for the exact chosen assembly; do not substitute MHF 4.
What remains unknown
No cross-generation MHF I/4 or cross-brand U.FL mate claim, universal frequency rating, pinout, or tool-less servicing endorsement. 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.
I-PEX describes MHF I as a miniature RF antenna connector family with 2.5 mm and 3.0 mm maximum mated-height variants.
I-PEX · I-PEX MHF I product page and part matrix ↗S465: full source recordInspect review dependencies → (private workspace)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.
I-PEX · I-PEX MHF I product page and part matrix ↗S465: full source recordInspect review dependencies → (private workspace)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.
I-PEX · I-PEX MHF I product page and part matrix ↗S465: full source recordInspect review dependencies → (private workspace)
