# item.guide
Side-by-Side Comparison Jack Connectors

3.5 mm TRRS vs. 6.35 mm (1/4") TRS

Comparing 2 standards across 9 specifications. 9 key differences identified.

Comparing:
3.5 mm TRRS
6.35 mm (1/4") TRS
3.5 mm TRRS →

3.5mm TRRS connectors transmit stereo audio plus a microphone signal over four conductors. CTIA wiring places ground on Ring 2 and mic on the sleeve; OMTP swaps ground to the sleeve and mic to Ring 2, causing muted or distorted audio when the two are mixed.

View full 3.5 mm TRRS spec sheet →
6.35 mm (1/4") TRS →

6.35mm TRS is the 3-conductor version of the quarter-inch phone connector, wired for either balanced mono line/microphone signals in professional audio gear or stereo signals in full-size headphones -- the same wiring logic as 3.5mm TRS at four times the shaft diameter.

View full 6.35 mm (1/4") TRS spec sheet →

Specification Comparison Table

9 Parameters
Parameter / Spec
3.5 mm TRRS
6.35 mm (1/4") TRS
Connector Family
Phone Jack (Mini-Jack) Phone Jack (Quarter-Inch / Standard Phone)
Shaft / Plug Diameter
3.5 mm (1/8") 6.35 mm (1/4")
Conductors / Contacts
4 (Tip, Ring 1, Ring 2, Sleeve) 3 (Tip, Ring, Sleeve)
Signal Format
Stereo Audio + Microphone / Inline Remote Balanced Mono / Unbalanced Stereo
Primary Applications
Smartphone headsets, gaming headsets, laptops with combo audio/mic jack Studio reference headphones, audio interface line in/out, balanced mixer interconnects
CTIA Standard Pinout
Tip: Left | Ring 1: Right | Ring 2: Ground | Sleeve: Mic (Apple, Android) —
OMTP Standard Pinout
Tip: Left | Ring 1: Right | Ring 2: Mic | Sleeve: Ground (Legacy EU) —
Standard Stereo Pinout
— Tip: Left | Ring: Right | Sleeve: Ground
Balanced Mono Pinout
— Tip: Hot (+) | Ring: Cold (-) | Sleeve: Ground

Other Alternatives to Compare

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