Side by side

N-Type versus RP-N-Type

Is the center-contact convention standard N-Type or reverse-polarity N-Type?

Computer-generated illustration, not a photograph. — P224 · ConnectorN-Type coaxial connector

How they differ

N-Type coaxial connector Look for the relatively large threaded N-Type interface and compare the center-contact and coupling form against documentation.
RP-N-Type coaxial connector Check the center-contact arrangement and product labeling before treating an N-Type-looking interface as standard or reverse polarity.

Then askIs the center-contact convention standard N-Type or reverse-polarity N-Type?

At a glance

Source-scoped form facts; counts, variants and unknowns are distinct
Field	N-Type coaxial connector	RP-N-Type coaxial connector
Type	Connector	Connector
Family	Coax	Coax
Shape	round	round
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	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.
Key distinction	Threaded RF connectors with similar proportions can still be different interfaces; identify the family before mating.	Reverse polarity changes the interface contact arrangement; do not assume standard N-Type 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: Coax

The reference ledger

Read the same question across.

2 selected records · 13 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	P224 / ConnectorN-Type coaxial connector Identification schematic · not to scale · drawing review pending	P225 / ConnectorRP-N-Type coaxial connector Identification schematic · not to scale · drawing review pending
Layer	Connector	Connector
Key distinction	Threaded RF connectors with similar proportions can still be different interfaces; identify the family before mating.	Reverse polarity changes the interface contact arrangement; do not assume standard N-Type 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 recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
Connector role	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.
Coupling / latch	Threaded5/8-24S228Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. Named series only, not every family part: Amphenol RF N-Type product family. Family coupling is useful identification context but is not automatically counted as a polarization/keying fact.; No part suffix, row/contact pitch, dimensional axis, physical marking or universal performance limit inferred.	Threaded5/8-24S229Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. Named series only, not every family part: Amphenol RF RP-N-Type product family. Family coupling is useful identification context but is not automatically counted as a polarization/keying fact.; No part suffix, row/contact pitch, dimensional axis, physical marking or universal performance limit inferred.
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.
Documented identification	Threaded N-Type RF connector family.C224A	Reverse-polarity N-Type RF connector family.C225A
Evidence	C224A,C224C,C224D,C224X → Independent review pending	C225A → 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

N-Type coaxial connectorP224 / Connector: Connector
RP-N-Type coaxial connectorP225 / Connector: Connector

Key distinction

N-Type coaxial connectorP224 / Connector: Threaded RF connectors with similar proportions can still be different interfaces; identify the family before mating.
RP-N-Type coaxial connectorP225 / Connector: Reverse polarity changes the interface contact arrangement; do not assume standard N-Type mating.

Nominal contacts

N-Type coaxial connectorP224 / Connector: Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
RP-N-Type coaxial connectorP225 / Connector: Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.

Positions / cavity span

N-Type coaxial connectorP224 / Connector: Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
RP-N-Type coaxial connectorP225 / Connector: Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.

Populated contacts

N-Type coaxial connectorP224 / Connector: Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
RP-N-Type coaxial connectorP225 / Connector: Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.

Contact rows

N-Type coaxial connectorP224 / Connector: Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
RP-N-Type coaxial connectorP225 / Connector: Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.

Contact pitch

N-Type coaxial connectorP224 / Connector: Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
RP-N-Type coaxial connectorP225 / Connector: Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.

Dimensions / axis

N-Type coaxial connectorP224 / Connector: Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
RP-N-Type coaxial connectorP225 / Connector: Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.

Connector role

N-Type coaxial connectorP224 / Connector: Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
RP-N-Type coaxial connectorP225 / Connector: Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.

Coupling / latch

N-Type coaxial connectorP224 / Connector: Threaded5/8-24S228Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. Named series only, not every family part: Amphenol RF N-Type product family. Family coupling is useful identification context but is not automatically counted as a polarization/keying fact.; No part suffix, row/contact pitch, dimensional axis, physical marking or universal performance limit inferred.
RP-N-Type coaxial connectorP225 / Connector: Threaded5/8-24S229Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. Named series only, not every family part: Amphenol RF RP-N-Type product family. Family coupling is useful identification context but is not automatically counted as a polarization/keying fact.; No part suffix, row/contact pitch, dimensional axis, physical marking or universal performance limit inferred.

Keying / polarization

N-Type coaxial connectorP224 / Connector: Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
RP-N-Type coaxial connectorP225 / Connector: Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.

Documented identification

N-Type coaxial connectorP224 / Connector: Threaded N-Type RF connector family.C224A
RP-N-Type coaxial connectorP225 / Connector: Reverse-polarity N-Type RF connector family.C225A

Evidence

N-Type coaxial connectorP224 / Connector: C224A,C224C,C224D,C224X →
Independent review pending
RP-N-Type coaxial connectorP225 / Connector: C225A →
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 →

BNC vs TNC coaxial connectorsBNC uses bayonet coupling while TNC uses threaded coupling. Connector family, impedance and application still need to be verified independently.BNC versus Mini-BNC versus HD-BNCWhich bayonet/coaxial interface family is actually documented for the equipment? Connector-family identity is only the first layer; implementation-specific electrical and protocol requirements still need exact documentation.LEMO broadcast 75-ohm versus 00 NIM-CAMAC 50-ohm triaxIs the documented interface a 75-ohm broadcast triax form or the 50-ohm LEMO 00 NIM-CAMAC form? Impedance and series identity are not interchangeable.MCX versus MMCXWhich miniature snap-on coaxial family matches the documented component? Connector-family identity is only the first layer; implementation-specific electrical and protocol requirements still need exact documentation.SMA versus RP-SMAThe center contact matters as well as the threaded outer shell.TNC versus RP-TNCIs the threaded TNC interface standard or reverse polarity? Connector-family identity is only the first layer; implementation-specific electrical and protocol requirements still need exact documentation.

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Evidence behind this page

Scope first. Source second. Approval separate.

4 linked sources · 5 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 2027-01-03. 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

S228 · N-Type connectors

Amphenol RF · Manufacturer / product-owner domain · inspected 2026-10-05 · due 2027-01-03

Within inspection window

Scoped support: Identifies N-Type as a threaded RF connector family; V39 uses mechanical-family identity only.

Not established / limitations: Identification/reference scope only. V39 does not convert this source into a universal pinout, fabrication drawing, electrical approval, protocol guarantee or end-to-end compatibility verdict.

Locator: N-Type overview

S229 · RP-N-Type connectors

Amphenol RF · Manufacturer / product-owner domain · inspected 2026-10-05 · due 2027-01-03

Within inspection window

Scoped support: Identifies reverse-polarity N-Type as a distinct N-Type interface intended not to mate with conventional N-Type parts.

Locator: RP-N-Type overview

S538 · Amphenol RF 172123 — N-Type in-series adapter identity

Amphenol RF · Manufacturer / product-owner domain · inspected 2026-10-12 · due 2027-01-10

Within inspection window

Scoped support: Only the named 50-ohm straight N jack-to-jack adapter. Panel Mounting Feature is explicitly Not Applicable; neither housing threads nor a grip imply panel mounting.

Not established / limitations: Product-page temperature entries conflict with its linked drawing. No temperature rating is selected or imported; source conflict retained in the auxiliary ledger.

Locator: Exact part 172123: adapter configuration/type, impedance, orientation and Panel Mounting Feature rows.

S993 · Amphenol RF 172100 exact N-Type product specifications

Amphenol RF · Manufacturer / product-owner domain · inspected 2026-10-22 · due 2027-01-20

Within inspection window

Scoped support: Only Amphenol RF 172100, the named straight N-Type plug. No family-wide geometry, mating pair, installed-cable performance or operating approval follows.

Not established / limitations: Text-only exact-part specification inspection. Customer drawing pixels not acquired; no dimensions, contact numbering, installation approval or hardware testing.

Locator: Full Product Specifications table: Body Material/Finish, Contact Material/Finish, Contact Termination, Termination Style, Coupling Mechanism, Orientation, Gender, Impedance (Ohms), Frequency (Max GHz), and Mating Cycles (Min).

Trace 5 claims to their source records

C224A · P224

Amphenol RF identifies N-Type as a threaded RF coaxial connector family.

Claim scope: V39 catalogue-expansion identification fact only; not independent technical approval, fabrication data, wiring instruction, protocol guarantee or end-to-end compatibility proof.

Source links: S228 · Evidence trail → (private workspace)

C224C · P224

Amphenol RF lists 172123 as a straight, 50-ohm in-series adapter with N-Type jack interfaces at both ends.

Claim scope: Exact adapter identity, not a cable-termination component or universal N-Type rating.

Source links: S538 · Evidence trail → (private workspace)

C224D · P224

The Panel Mounting Feature entry for Amphenol RF 172123 is explicitly Not Applicable.

Claim scope: Only this named adapter; its external threaded regions do not establish bulkhead mounting.

Source links: S538 · Evidence trail → (private workspace)

C224X · P224

Amphenol RF 172100 is a straight N-Type plug. Its table reports brass body; white-bronze finish, brass contact; gold finish, cable-crimp construction; crimp contact termination, threaded coupling, 50-ohm impedance, a 11-GHz frequency ceiling and 500 minimum mating cycles. It identifies a PTFE insulator. These are exact-part manufacturer specifications, not family-wide ratings or independent test results.

Claim scope: Only Amphenol RF 172100, the named straight N-Type plug. No family-wide geometry, mating pair, installed-cable performance or operating approval follows.

Source links: S993 · Evidence trail → (private workspace)

C225A · P225

Amphenol RF identifies RP-N-Type as a reverse-polarity N-Type interface distinct from conventional N-Type.

Claim scope: V39 catalogue-expansion identification fact only; not independent technical approval, fabrication data, wiring instruction, protocol guarantee or end-to-end compatibility proof.

Source links: S229 · 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.