E019 · Source-scoped pinout variants

3.5 mm TRS connector engineering reference

Physical TRS contact designations only.

Open field note Source trail

Source checked · no independent review claimed · Fabrication approved: no

3.5 mm TRS contact-designation reference original orientation schematic — Original pinout diagram; read the exact variant and view below. Not to scale.

Contact count

3

phone plug physical contact sequence

Mating boundary

Shape is not the verdict.

3.5 mm TRS plug ↔ compatible 3.5 mm phone jack; electrical role is equipment-specific

Orientation

How to read this profile

Longitudinal plug view from the exposed tip toward the cable body: Tip → Ring → Sleeve.

Bounded dimensions

Only what the sources support

Source-scoped dimensions; not fabrication clearances
Field	Value	Scope	Evidence
Nominal plug family diameter	3.5 mm	nominal identifier	[C019A]

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.

Documented examples; not a mating drawing or compatibility approval
Nominal contacts	3S022phone plug physical contact sequence; nominal engineering count, not automatically positions, population or a device wiring map. phone plug physical contact sequence
Dimensions / axis	3.5 mm Nominal plug family diameterS022Recorded source-scoped values; named examples do not describe every family variant or establish compatibility. nominal_identifier; phone plug physical contact sequence
Connector role	plug; plug (Neutrik NTP3RC)S022 · S022 · S523Recorded source-scoped values; named examples do not describe every family variant or establish compatibility. phone plug physical contact sequence Exact NTP3RC component role and exterior; no channel mapping or device compatibility.
Mounting	solder contacts (NTP3RC)S871Separate exact examples; retain each value’s source, role, axis and part scope. Exact named example NTP3RC: 3.5mm three-pole male right-angle cable plug. Exact example only; no universal geometry, electrical compatibility, fabrication approval or wiring instruction. Cable clamp range is not plug mating diameter, which remains the existing3.5mm value.
Coupling / latch	chuck-type cable strain relief (NTP3RC)S871Separate exact examples; retain each value’s source, role, axis and part scope. Exact named example NTP3RC: 3.5mm three-pole male right-angle cable plug. Exact example only; no universal geometry, electrical compatibility, fabrication approval or wiring instruction. Cable clamp range is not plug mating diameter, which remains the existing3.5mm value.
Manufacturer	Neutrik (NTP3RC)S022 · S523Recorded source-scoped values; named examples do not describe every family variant or establish compatibility. Exact NTP3RC component role and exterior; no channel mapping or device compatibility.
Series	3.5 mm TRS (NTP3RC)S022 · S523Recorded source-scoped values; named examples do not describe every family variant or establish compatibility. Exact NTP3RC component role and exterior; no channel mapping or device compatibility.
Exact part / implementation	NTP3RC (NTP3RC)S022 · S523Recorded source-scoped values; named examples do not describe every family variant or establish compatibility. Exact NTP3RC component role and exterior; no channel mapping or device compatibility.
View convention	Longitudinal plug view from the exposed tip toward the cable body: Tip → Ring → Sleeve.S022Recorded source-scoped values; named examples do not describe every family variant or establish compatibility. Existing engineering orientation text; source/part/view remains controlling.

Not recorded: Positions / cavity span, Populated contacts, Contact rows, Contact pitch, Contact gender / arrangement, Keying / polarization, Shell / form, Recorded markings. Unknown fields stay unknown; illustrations supply no measurements or pin assignments.

Recorded variant and source limits

No stereo, balanced, mono or insert function is inferred from TRS geometry alone.
No manufacturing tolerances are published.
Unbalanced stereo (Extron): Plug contact convention, read along the plug from its exposed tip toward the cable. Local ordinal 1=Tip, 2=Ring, 3=Sleeve. No universal numeric solder-lug or PCB-pad numbering is claimed.
Balanced mono (Extron): Plug contact convention, read along the plug from its exposed tip toward the cable. Local ordinal 1=Tip, 2=Ring, 3=Sleeve. No universal numeric solder-lug or PCB-pad numbering is claimed.
RODE SC4 black TRS microphone input: Plug contact convention, read along the plug from its exposed tip toward the cable. Local ordinal 1=Tip, 2=Ring, 3=Sleeve. No universal numeric solder-lug or PCB-pad numbering is claimed.

Report a correction to these facts →

Pins & wiring

Pinout

Choose the exact wiring. Pin numbers follow its stated view; a schematic does not establish physical positions. Check your exact device before wiring.

Dark pinout view

What the status labels mean

Confirmed: Recorded research passes agree within this variant; this is not independent human review or hardware validation.
Single source: Only one underlying document, or one pass, supports this assignment.
Device-specific: Supported for the named equipment or wiring only. Check your device’s manual.
Unverified: Missing or conflicting evidence. Do not wire from this row.
Not connected: The source explicitly says NC, no contact or no pin for this wiring.

Wiring variantUnbalanced stereo (Extron)

Unbalanced stereo (Extron)

Device-specific wiring. Check your device’s manual before connecting or applying power.

View and evidence limits

Plug contact convention, read along the plug from its exposed tip toward the cable. Local ordinal 1=Tip, 2=Ring, 3=Sleeve. No universal numeric solder-lug or PCB-pad numbering is claimed.

P019 3.5 mm TRS — Agree (tip left, ring right, sleeve ground) — Balanced-mono and device-specific uses recorded as variants.
The 1/2/3 numbers here are explicit local contact-position ordinals, not a manufacturer jack-terminal numbering standard.
Insert send/return, biased microphone inputs, remote-control and other proprietary 3.5 mm TRS arrangements are unverified outside the exact examples below.
No revision/date is printed on the retrieved SC4 datasheet; its content is identified by URL and SHA-256.

Schematic only · physical contact positions unconfirmed. Original drawing · not to scale. Scroll sideways if needed.

Unbalanced stereo (Extron) — source-scoped contact map
Pin	Signal	What it does	Status
1	Tip — Left	Control, detection or configuration connection; check the source and device.	Device-specific Sources
2	Ring — Right	Control, detection or configuration connection; check the source and device.	Device-specific Sources
3	Sleeve — Ground	Control, detection or configuration connection; check the source and device.	Device-specific Sources

Sources (1)

S698 · Extron · Audio connector wiring sheet: 3.5 mm Stereo Mini Jack to Captive Screw
68-1051-01 Rev. B, June 2009 · p. 1, lower panel (1), Wiring 3.5 mm Tip-Ring-Sleeve Mini Stereo Plugs, unbalanced plug diagram

Balanced mono (Extron)

Device-specific wiring. Check your device’s manual before connecting or applying power.

View and evidence limits

Plug contact convention, read along the plug from its exposed tip toward the cable. Local ordinal 1=Tip, 2=Ring, 3=Sleeve. No universal numeric solder-lug or PCB-pad numbering is claimed.

P019 3.5 mm TRS — Agree (tip left, ring right, sleeve ground) — Balanced-mono and device-specific uses recorded as variants.
The 1/2/3 numbers here are explicit local contact-position ordinals, not a manufacturer jack-terminal numbering standard.
Insert send/return, biased microphone inputs, remote-control and other proprietary 3.5 mm TRS arrangements are unverified outside the exact examples below.
No revision/date is printed on the retrieved SC4 datasheet; its content is identified by URL and SHA-256.

Schematic only · physical contact positions unconfirmed. Original drawing · not to scale. Scroll sideways if needed.

Balanced mono (Extron) — source-scoped contact map
Pin	Signal	What it does	Status
1	Tip — +	Control, detection or configuration connection; check the source and device.	Device-specific Sources
2	Ring — −	Control, detection or configuration connection; check the source and device.	Device-specific Sources
3	Sleeve — Ground	Control, detection or configuration connection; check the source and device.	Device-specific Sources

Sources (1)

S698 · Extron · Audio connector wiring sheet: 3.5 mm Stereo Mini Jack to Captive Screw
68-1051-01 Rev. B, June 2009 · p. 1, lower panel (2), 3.5 mm Stereo Plug Connector (balanced) diagram and sleeve/ground callout

RODE SC4 black TRS microphone input

Device-specific wiring. Check your device’s manual before connecting or applying power.

View and evidence limits

Plug contact convention, read along the plug from its exposed tip toward the cable. Local ordinal 1=Tip, 2=Ring, 3=Sleeve. No universal numeric solder-lug or PCB-pad numbering is claimed.

P019 3.5 mm TRS — Agree (tip left, ring right, sleeve ground) — Balanced-mono and device-specific uses recorded as variants.
The MIC bracket covers both tip and ring in the SC4 Demo Wiring diagram. The drawing does not by itself specify an internal short or summing circuit. This is the adapter input, not a universal camera/RODE microphone wiring rule.
The 1/2/3 numbers here are explicit local contact-position ordinals, not a manufacturer jack-terminal numbering standard.
Insert send/return, biased microphone inputs, remote-control and other proprietary 3.5 mm TRS arrangements are unverified outside the exact examples below.
No revision/date is printed on the retrieved SC4 datasheet; its content is identified by URL and SHA-256.

Schematic only · physical contact positions unconfirmed. Original drawing · not to scale. Scroll sideways if needed.

RODE SC4 black TRS microphone input — source-scoped contact map
Pin	Signal	What it does	Status
1	Tip — MIC	Control, detection or configuration connection; check the source and device.	Device-specific Sources
2	Ring — MIC	Control, detection or configuration connection; check the source and device.	Device-specific Sources
3	Sleeve — GROUND	Control, detection or configuration connection; check the source and device.	Device-specific Sources

Sources (1)

S699 · RODE · SC4 3.5 mm TRS to TRRS Adaptor Datasheet
Revision and publication date not stated · p. 1, Demo Wiring, black TRS SOCKET on left

Unknowns stay unknown.

No stereo, balanced, mono or insert function is inferred from TRS geometry alone.
No manufacturing tolerances are published.

Your next step

Use the detail without guessing past its limits.

Read the connector field note Recognition clues and practical checks.Work through a connection Keep exact equipment and cable requirements separate.

Source trail

Claims and sources

Back to first citation ↑

C019Asource checked

A 3.5 mm TRS plug has three conductive sections: tip, ring and sleeve.

Neutrik · NTP3RC miniature phone plug ↗
Product identification ·

C801Ysource checked

Unbalanced stereo (Extron): original contact normalization. Statuses distinguish comparison agreement, source limits and named-device wiring.

Extron · Audio connector wiring sheet: 3.5 mm Stereo Mini Jack to Captive Screw ↗
p. 1, lower panel (1), Wiring 3.5 mm Tip-Ring-Sleeve Mini Stereo Plugs, unbalanced plug diagram; p. 1, lower panel (2), 3.5 mm Stereo Plug Connector (balanced) diagram and sleeve/ground callout · Source scope and unresolved evidence are preserved in the engineering variant.

C801Zsource checked

Balanced mono (Extron): original contact normalization. Statuses distinguish comparison agreement, source limits and named-device wiring.

C802Asource checked

RODE SC4 black TRS microphone input: original contact normalization. Statuses distinguish comparison agreement, source limits and named-device wiring.

RODE · SC4 3.5 mm TRS to TRRS Adaptor Datasheet ↗
p. 1, Demo Wiring, black TRS SOCKET on left · Source scope and unresolved evidence are preserved in the engineering variant.

3 source records support this profile. No independent engineering review or hardware validation is claimed.

Evidence behind this page

Scope first. Source second. Approval separate.

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

Page scope: Original longitudinal contact-designation schematic; not to scale.

Assessment 2026-10-22 · earliest scheduled source review 2026-12-30. This is a recorded-date assessment, not a live source check. Page-level independent review is not established by this panel.

Inspect 3 source scopes, access limits and dates

S022 · NTP3RC miniature phone plug

Neutrik · Manufacturer / product-owner domain · inspected 2026-10-01 · due 2026-12-30

Within inspection window

Scoped support: 3.5 mm, 3-pole phone plug physical example.

Not established / limitations:

Locator: Product identification

S698 · Audio connector wiring sheet: 3.5 mm Stereo Mini Jack to Captive Screw

Extron · Unclassified publisher domain · inspected 2026-10-18 · due 2027-01-16

Within inspection window

Scoped support: Exact named pinout variant only; not capability or compatibility approval.

Not established / limitations: Source scope and unresolved evidence are preserved in the engineering variant.

Locator: p. 1, lower panel (1), Wiring 3.5 mm Tip-Ring-Sleeve Mini Stereo Plugs, unbalanced plug diagram; p. 1, lower panel (2), 3.5 mm Stereo Plug Connector (balanced) diagram and sleeve/ground callout

S699 · SC4 3.5 mm TRS to TRRS Adaptor Datasheet

RODE · Unclassified publisher domain · inspected 2026-10-18 · due 2027-01-16

Within inspection window

Scoped support: Exact named pinout variant only; not capability or compatibility approval.

Not established / limitations: Source scope and unresolved evidence are preserved in the engineering variant.

Locator: p. 1, Demo Wiring, black TRS SOCKET on left

Trace 4 claims to their source records

C019A · P019

A 3.5 mm TRS plug has three conductive sections: tip, ring and sleeve.

Claim scope: Consumer identification / documented standard or product class only

Source links: S022 · Evidence trail → (private workspace)

C801Y · P019

Unbalanced stereo (Extron): original contact normalization. Statuses distinguish comparison agreement, source limits and named-device wiring.

Claim scope: Pinout variant only; see comparison and per-contact status. Not fabrication approval.

Source links: S698 · Evidence trail → (private workspace)

C801Z · P019

Balanced mono (Extron): original contact normalization. Statuses distinguish comparison agreement, source limits and named-device wiring.

Claim scope: Pinout variant only; see comparison and per-contact status. Not fabrication approval.

Source links: S698 · Evidence trail → (private workspace)

C802A · P019

RODE SC4 black TRS microphone input: original contact normalization. Statuses distinguish comparison agreement, source limits and named-device wiring.

Claim scope: Pinout variant only; see comparison and per-contact status. Not fabrication approval.

Source links: S699 · 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.