Part Information Review and Verification

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

2:52

Thought for a moment

Found 1 results for 20449-001E-03 datasheet PDF I-PEX MHF4 receptacle 20449 land pattern pin.

Thought for a moment

Thought for 2 sec

Thought for a moment

Read layout.

Reviewed the part project and created a detailed report: Part Information Review — I-PEX 20449-001E-03. Key findings: the datasheet URL is already set, the part metadata mostly matches available official/product info, but pins 2–4 are likely mis-typed as Power In instead of RF shell/ground pads, terminal descriptions are missing, and the footprint looks plausible but could not be fully dimension-verified from the OCR-extracted datasheet.

Fix ground pins

Check footprint dimensions

Update part description

Run ERC/DRC

Created project doc "Part Information Review — I-PEX 20449-001E-03"

Finished working

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Part Information Review — I-PEX 20449-001E-03

Scope

Reviewed available project metadata, schematic terminal elements, PCB footprint pads, assets, and available official web/datasheet information for the part project 20449-001E-03.

Datasheet URL status

Project already has Datasheet URL set to: https://www.i-pex.com/sites/default/files/downloads/pdf/2D_MHF_4_RECEPTACLE_20449_1C22.pdf
Because the property is already populated, I did not change it.
Note: official web search found a newer/current-looking I-PEX drawing URL: https://www.i-pex.com/sites/default/files/downloads/pdf/2D_MHF_4_RECEPTACLE_20449C22.pdf with Rev. 22 dated 2025-09-17. Consider updating to that URL if you want the latest canonical drawing.
The datasheet/OCR extraction tools could not parse the PDF contents directly, so exact pin/land-pattern verification is limited. I used the official I-PEX web result and project data for the review.

Available project metadata

Field	Current project value	Review
Manufacturer Part Number	`20449-001E-03`	Looks correct
Manufacturer Name	`I-PEX`	Looks correct
Part Type	`Connectors`	Acceptable; singular `Connector` may be cleaner
Mount	`Surface Mount`	Matches SMT receptacle
Package or Case Code	`4-SMD`	Consistent with 4 footprint pads / terminals
Designator Prefix	`J`	Correct for connector
Datasheet URL	I-PEX PDF URL	Present; see note about newer Rev. 22 URL
Description	MHF4 RF coaxial receptacle, 50 Ω, up to 9 GHz, SMT	Matches available official/product info

Key specs from available official/product information

Manufacturer: I-PEX
Part: 20449-001E-03
Series/type: MHF® 4 ultra-miniature RF coaxial receptacle
Connector style: Receptacle, male pin, snap-on mating
Mounting: Surface-mount solder
Characteristic impedance: 50 Ω nominal
Frequency: up to 9 GHz
Rated voltage: 60 V
Operating temperature: -40 °C to +90 °C
Mating cycles: 30 cycles
Product page size notes: 1.2 mm max mated height, 2.0 mm × 2.0 mm SMT size
Official drawing includes a Recommended Footprint Pattern and recommended metal mask layout with 0.12 mm mask thickness and a note that no ground, signal, or resist should be placed in the indicated keepout area.

Schematic symbol / terminal audit

Project currently has 4 terminal elements, all unnamed/tilde designators, with these properties:

Table

Existing terminal UID suffix	Pin Number	Pin Type	Pin Description	Review
`4aed89b1`	1	Passive	Missing	Likely intended as RF center contact / signal. Passive is plausible for an RF connector pin, but the terminal should be named and described.
`3f218776`	2	Power In	Missing	Likely not correct for an RF coax receptacle ground/shell pad. Should probably be Ground or Passive after verifying the official drawing.
`f4cde1c7`	3	Power In	Missing	Likely not correct for an RF coax receptacle ground/shell pad. Should probably be Ground or Passive after verifying the official drawing.
`41254235`	4	Power In	Missing	Likely not correct for an RF coax receptacle ground/shell pad. Should probably be Ground or Passive after verifying the official drawing.

Symbol findings

Pin count: 4 terminals in Flux, consistent with the 4-SMD package and footprint pad count.
Missing/weak metadata:
- Terminal designators are ~ / anonymous rather than meaningful names such as RF, GND1, GND2, GND3.
- Pin Description is missing on all four terminals.
- Section, Pin Group, and Pin Orientation are missing; for a small connector this is not critical, but descriptions and correct pin types are important.
Likely mismatch:
- Pins 2–4 are currently Power In. For an RF coax receptacle these are very likely shell/ground mounting pads, not power inputs. Treat this as a mismatch unless the official drawing explicitly labels them otherwise.

Footprint audit

Flux footprint currently has 4 SMD pads:

Table

Pad UID suffix	Approx. position	Approx. size / shape	Review
`4aed89b1`	x=0, y=-0.975 mm	0.60 × 0.55 mm rectangle	Likely center/signal pad candidate
`41254235`	x=0, y=+1.000 mm	0.50 × 0.50 mm rectangle	Likely shell/ground pad candidate
`3f218776`	x=+1.000 mm, y=0	custom side pad ~1.6 mm envelope	Likely shell/ground side pad
`f4cde1c7`	x=-1.000 mm, y=0	custom side pad ~1.6 mm envelope	Likely shell/ground side pad

Footprint findings

Pad count matches the schematic terminal count: 4 pads ↔ 4 terminals.
The general layout appears consistent with an MHF4 receptacle: one center/contact pad area plus shell/ground mounting pads.
Exact dimensional match to the official recommended footprint could not be confirmed because the PDF extraction failed. The official web result confirms the drawing has a recommended footprint pattern with dimensions including values such as 0.50, 0.60, 1.34, 1.50, 2.50, 1.58, 0.75, 0.70, 0.38, 0.54, and 1.25 mm, but the tool did not expose enough geometry to map each number unambiguously.
The footprint currently has no explicit keepout or note corresponding to the I-PEX drawing note: no ground, signal, and resist allowed in the indicated area. If this part will be used in RF layouts, add/communicate that keepout requirement in the part documentation or footprint constraints.

Assets

Symbol SVG exists and is marked default/thumbnail.
KiCad footprint asset exists and is marked footprint.
STEP 3D model exists and is marked 3D model.

Mismatches / action items

Pin type mismatch likely: Pins 2, 3, and 4 are Power In; they should likely be Ground or Passive for the connector shell/ground pads after checking the official drawing.
Missing terminal names/descriptions: All terminal elements are anonymous and lack Pin Description. Suggested labels after confirmation: RF, GND1, GND2, GND3.
Datasheet URL may be outdated: Existing URL is set, but official web search found a newer/current Rev. 22 PDF at 2D_MHF_4_RECEPTACLE_20449C22.pdf.
Footprint exactness not fully verified: Pad count and general geometry look plausible, but exact pad dimensions/locations could not be fully cross-checked from the PDF extraction.
RF layout note missing: The official drawing includes a keepout-style note for the indicated area; the part metadata/footprint should preserve that warning for users.

Recommended next fixes

Update terminal pin types/descriptions once the exact official pin assignments are confirmed from the drawing:
- Pin 1: likely RF / Signal, Pin Type Passive, Pin Description RF center contact
- Pins 2–4: likely GND / Shell, Pin Type Ground or Passive, Pin Description Ground shell pad
Consider updating the project Datasheet URL to the newer official Rev. 22 PDF.
Add an Implementation Details property noting 50 Ω RF routing and the footprint keepout/no copper/no resist restriction from the drawing.

Scope

Datasheet URL status

Available project metadata

Key specs from available official/product information

Schematic symbol / terminal audit

Symbol findings

Footprint audit

Footprint findings

Assets

Mismatches / action items

Recommended next fixes

Reviews

Documents

20449-001E-03 Part Review

Part Information Review — I-PEX 20449-001E-03

Assets

step

20449-001E-03

20449-001E-03.step3D Model

20449-001E-03

20449-001E-03 20449-001E-03_0_0 Symbol.svgDefault

20449-001E-03-thumb.png

20449-001E-03-thumbThumbnail

kicad_mod

20449001E03.kicad_mod

FP_20449001E03

kicad_mod

20449-001E-03

IPEX_20449-001E-03.kicad_modFootprint

Project Name

20449-001E-03

Description

I-PEX MHF4 Connector Receptacle, Male Pin 50 Ohms Surface Mount Solder

The 20449-001E-03 is an ultra-miniature MHF4 RF coaxial receptacle connector from I-PEX designed for high-frequency wireless applications such as Wi-Fi, Bluetooth, LTE, GNSS, and cellular antenna connections in compact electronic devices. It is a surface-mount RF connector optimized for miniature coaxial cable assemblies and high-density PCB layouts.

Key Features Ultra-small MHF4 RF coaxial receptacle Supports frequencies up to 9 GHz Characteristic impedance: 50 Ω Surface-mount (SMT) PCB mounting Snap-on mating mechanism Compact footprint for space-constrained designs Gold-plated center contact for improved conductivity and corrosion resistance Uses: MHF4 compatible RF cables and antenna assemblies High-reliability micro RF interconnect Operating temperature: −40°C to +90°C Rated voltage: 60 V Approximate mating cycle rating: 30 cycles Constructed with: Brass contacts LCP (Liquid Crystal Polymer) dielectric material RoHS compliant Typical Applications Wi-Fi modules LTE/5G modules GNSS/GPS antennas Bluetooth devices IoT devices Embedded wireless systems Compact handheld electronics RF communication modules

Properties

Manufac… Number

20449-001E-03

Manufac…er Name

I-PEX

Part Type

Connectors

Datasheet URL

i-pex.com/sites/default/files/downloads/pdf/2D_MHF_4_RECEPTACLE_20449_1C22.pdf

Designator Prefix

Mount

Surface Mount

Package …se Code

4-SMD

License

creativecommons.org/licenses/by/4.0/

Pricing & Availability

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