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

2.5mm TRS vs. 6.35mm TS

Comparing 2 standards across 7 specifications. 7 key differences identified.

Comparing:
2.5mm TRS
6.35mm TS
2.5mm TRS →

2.5mm TRS is the smallest common member of the phone-connector family -- the same tip-ring-sleeve wiring as 3.5mm TRS, scaled down to a 2.5mm shaft. It was used for headset jacks on cordless phones, two-way radios, and early portable tape recorder remotes before 3.5mm became the standard smaller size.

View full 2.5mm TRS spec sheet →
6.35mm TS →

6.35mm TS (Tip-Sleeve) is the 2-conductor version of the quarter-inch phone connector, carrying a single unbalanced mono signal. It's the standard connector for electric guitar and instrument cables, unchanged in essentials since its telephone-switchboard origins.

View full 6.35mm TS spec sheet →

Specification Comparison Table

7 Parameters
Parameter / Spec
2.5mm TRS
6.35mm TS
Connector Family
Phone Jack (Micro-Mini) Phone Jack (Quarter-Inch / Standard Phone)
Shaft / Plug Diameter
2.5 mm 6.35 mm (1/4")
Conductors / Contacts
3 (Tip, Ring, Sleeve) 2 (Tip, Sleeve)
Signal Format
Unbalanced Stereo / Balanced Mono Unbalanced Mono Audio
Primary Applications
Cordless phones, two-way radios, legacy mobile headsets, micro audio gear Electric guitar/bass cables, instrument patch leads, amplifier inputs, effects pedals
Standard Stereo Pinout
Tip: Left | Ring: Right | Sleeve: Ground —
Standard Mono Pinout
— Tip: Hot Signal (+) | Sleeve: Ground / Shield

Other Alternatives to Compare

Compare 2.5mm TRS vs. 2.5mm TRRS → Compare 2.5mm TRS vs. 3.5 mm TRRS → Compare 2.5mm TRS vs. 3.5 mm TRS → Compare 2.5mm TRS vs. 6.35 mm (1/4") TRS → Compare 2.5mm TRS vs. Coaxial Cable Types (RG Series) → Compare 2.5mm TRS vs. RCA → Compare 2.5mm TRS vs. XLR 3-Pin → Compare 2.5mm TRS vs. XLR 4-Pin → Compare 2.5mm TRS vs. XLR 5-Pin →