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Jack - Switchcraft, ¼", Mono 2-Conductor, shunt tip

Pictured: Standard (0.275")
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Item ID: 004913
Starting at: $2.15
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Switchcraft Type 12A Littel-Jax shorting type phone jack. The switched terminal is normally closed and is usually connected to ground to eliminate hum when unplugged. Includes nut and washer

  • Type 12A
  • 0.275" bushing length (standard) or 0.375" bushing length (long)
  • Mates with standard ¼" plugs and is available with 0.25" inside diameter bushing.
  • Mono 2-Conductor.
  • Includes nut and washer
  • Tip is shunt
Mounting Bushing Nickel-plated copper alloy.
Insulation Rigid plastic
Springs Special copper alloy. Fine silver contacts
Sleeve Terminal Copper alloy
Hardware Supplied with one copper alloy nickel-plated hex nut, and one copper alloy nickel-plated washer

Switching Diagram for Long (0.375"):

Switching Diagram for Long (0.375")

Switching Diagram for Standard (0.275"):

Switching Diagram for Standard (0.275")
Bushing LengthOur Part NumberUPC/EAN
Long (0.375")W-SC-L12A609722127288
Standard (0.275")W-SC-12A609722127080

RoHS Compliant

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Product Reviews

5.00 out of 5 based on 11 reviews



You can alway count on Switchcraft, there are cheap units out there , and are not worth buying, these are worth their “salt”

Bob R - August 10th, 2019

Quality jack. Would like to show a picture of installation in my amp chassis.

Jeff Duncan - May 28th, 2019

best jack in the industry, still!!!

wishbone - May 10th, 2016

I've been servicing electronics professionally for over 35 years now, and in that time have replaced well over a thousand jacks i'm sure. I have always replaced cheap, inferior jacks with high quality Switchcraft jacks, because nothing sucks more than having to explain to a customer that their amp failed again during their show because I was trying to save them 50 cents by using Chinese garbage. They're so beautifully made, that even Neutrik hasn't been able to improve them.

Darren - December 1st, 2015

SwitchCraft is the best you can buy at the price from Antique Electronic Supply. They have always came through with years and years of service. Problem free, maintenance free. I have no reason to use another product, The jack does whats suppose to. Install and forget about it..

steveotten - October 15th, 2015

As described, good value

DLC - September 6th, 2015

I have used these for a long time and am very happy with them.

ron bradford - December 8th, 2014

You can't miss using Switchcraft. And at a decent price you can't go wrong.

Chuck W - November 26th, 2014

The classic Switchcraft standard for amps and cabinets of quality and reliability.
Use for shunting to ground or as an external speaker jack.

Will Puckett - August 24th, 2014

These input jacks could not be better and the best part is the price. Just by looking at them you can tell the quality. I am very satisfied with them

Jose Vives - July 25th, 2014


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