K-Series (3.5mm) Plugs & Jacks-Amphenol

K-Series (3.5mm) Plugs & Jacks-Amphenol

Amphenol’s plugs and sockets range continually expand to meet the needs of our customers. The success of the M-Series phone plugs led to the RCA series being developed. The Miniature XLR range was a natural progression from our standard XLR series as the demand for smaller interconnects increased. The latest addition to the range is a professional grade 3.5mm phone plug designed for applications that require a robust interconnect.


  • Mono or TRS (Stereo).
  • AX Series inspired shell design.
  • Suits Cable O.D from 2.5mm to 5mm (0.098” to 0.196”)
  • Robust diecast shell in Satin Nickel or Black finish.
  • Nickel or Gold contact plating.
  • Flexible grommet cable protection.
  • Improved solderability.
  • Precision machined contacts.
  • Standard or Bulk packaging.


  • Black Shell,
  • Gold contacts.

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GENERAL CHARACTERISTICSNumber of Contacts2 Pole (Mono)
 3 Pole Tip Ring Sleeve (Stereo)
Wire Gauge - Stranded Wire2 Pole (Mono): AWG 16 - 1.5mm2
 3 Pole (Stereo): AWG 18 - 1mm2
Flammability rating of insulating plasticsUL94V-0
Solderability complies withIEC 68-2-20
EnvironmentalComplies with EU RoHS 2 Directive 2011/65/EU
ELECTRICAL CHARACTERISTICSCurrent Carrying Capacity>0.5mA (Depends on Mating Connector and Cable)
Typical Contact Resistance≤20mΩ (Depends on Mating Connector and Cable)
Insulation resistance (initial)>200M Ω
After Damp Heat Test>100M Ω
Test Voltage AC RMS: Dielectric Strength250VAC
Operating Temperature-20ºC to +65ºC (-4ºF to +149ºF)
MECHANICAL CHARACTERISTICSInsertion and Withdrawal Force<20N / >3N (depends on mating connector)
Cable O.D.3mm to 5mm (0.118” to 0.196”)
Mechanical Operations1000 mating cycles
Weight8g (0.017lb)
MATERIALSConnector Shell Material (Plugs)Diecast Zinc Alloy EZDA No.3
Connector Shell FinishSatin Nickel or Black Polyester
Cable BushingSantoprene
PlatingNickel or Gold Flash

Download Catalog: Amphenol Connector Catalog

Ref: Amphenol.com