Switchcraft 188
Heavy Duty 1/4" Phone Plug

OUR PART #  188


  • Switchcraft's 188 is more heavy-duty than our competitor's biggest 1/4" commercial phone plugs.
  • Large curved tip solder terminal makes it easier to solder to heavy gauge wires.
  • Longer sleeve terminal allows more room to make sleeve solder connections.
  • Extra-large cable clamp securely grips cable of up to .450" in diameter.
  • Will easily accommodate some varieties of four conductor 14 gauge wire and parallel two conductor 12 gauge wire.
  • Bendable tab on sleeve terminal makes termination easier by holding down cable while soldering. In addition, such mechanical retention makes for a superior solder connection.
  • Will handle up to 15 A. rms (maximum).


  • Contact Resistance (typical Dependent on MatingJack):< 0.020 ohms
  • Dielectric Withstand Voltage: 500 VAC (minimum)
  • Insulation Resistance @ 500 VDC: 2,000 megohms(minimum)
  • Insulation Resistance (after MIL-STD-202 Salt Spray):1,000 megohms (minimum)
  • Working Voltage: 250 VAC, 140 VDC
  • Current Carry @ Working Voltage (typical Dependent onMating Jack) : 15.0 AMPS
  • Insert/Withdrawal Force: Dependent on Mating Jack
  • Soldering Requirement: ANSI/J-STD-001
  • Temperature Range: -40° to + 85° Centigrade
  • U.L. Component Recognition File No.: E118169
  • Life: Dependent on Mating Jack
  • Maximum Cable Size: 12 AWG stranded, up to .450"diameter
  • Tip: Nickel-plated copper alloy
  • Sleeve: Nickel-plated copper alloy
  • Handle: Nickel-plated copper alloy
  • Tip Terminal: Copper alloy, electrotin-plated
  • Cable Clamp: Copper alloy, electrotin-plated
  • Insulators: Thermojet plastic, thermoplastic, thermoplasticfilm, P.P.O.
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