1/4" Jack - Switchcraft, Mono, shunt tip

1/4" Jack - Switchcraft, Mono, shunt tip

Pictured: Standard (0.275")
Pictured: Standard (0.275")
Pictured: Standard (0.275")
Pictured: Standard (0.275")
Pictured: Standard (0.275")
Pictured: Standard (0.275")
Pictured: Long (0.375")
Pictured: Long (0.375")
Pictured: Long (0.375")
Pictured: Long (0.375")
Pictured: Long (0.375")
Pictured: Long (0.375")
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Pictured: Standard (0.275")Pictured: Standard (0.275")Pictured: Standard (0.275")Pictured: Long (0.375")Pictured: Long (0.375")Pictured: Long (0.375")
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Starting at: $2.60
In Stock

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")
Part Numbers
Bushing LengthOur Part NumberUPC/EANSwitchcraft Part Number
Standard (0.275")W-SC-12A609722127080 12A
Long (0.375")W-SC-L12A609722127288 L12A
Product Measurements by Type
Chassis Hole DiameterLong (0.375") versionW-SC-L12A0.375 in.
Item Diameter0.75 in.
Item LengthLong (0.375") versionW-SC-L12A1.115 in.
Standard (0.275") versionW-SC-12A1.015 in.
Mounting Hole DiameterStandard (0.275") versionW-SC-12A0.0375 in.
Plug Diameter0.25 in.
Packaging Information
Packaging DimensionsLong (0.375") versionW-SC-L12A1.3 in. × 0.9 in. × 0.8 in.
Standard (0.275") versionW-SC-12A1.3 in. × 0.9 in. × 0.9 in.
Weight (Packaging)Long (0.375") versionW-SC-L12A0.023 lbs.
Standard (0.275") versionW-SC-12A0.022 lbs.
Product Measurements by Item
W-SC-L12A - Long (0.375") versionChassis Hole Diameter0.375 in.
Item Diameter0.75 in.
Item Length1.115 in.
Plug Diameter0.25 in.
W-SC-12A - Standard (0.275") versionItem Diameter0.75 in.
Item Length1.015 in.
Mounting Hole Diameter0.0375 in.
Plug Diameter0.25 in.

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Questions and Answers

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Asked by Anonymous on March 23rd, 2018.
March 23rd, 2018
Staff Member
Our information from the manufacturer has these rated at 1 A, 25 V DC.

Product Reviews

5.00 out of 5 based on 17 reviews
Don DeJong - January 23rd, 2023
5 out of 5

There are certain instances when you don't have enough depth for a regular 1/4" jack, and that's where the longer bushing (3/8") is the perfect solution. And you can never go wrong with Switchcraft parts. They're always dependable.

Stephen300 - September 9th, 2022
5 out of 5

Excellent high quality jacks that I use on all my amp builds. Highly recommended.

Patrick Coleman - March 19th, 2022
5 out of 5

switchcraft quality and the long thread shaft I needed for my radio build. great!

60bassman - February 10th, 2022
5 out of 5

These switches fit perfectly in my 1965 fender bassman. The only difference is the originals had only two solder points. These have six. You just wire on one side of the switch, leave the other side blank.

Tony P. - February 20th, 2021
5 out of 5

Great 1/4" jack. The best out there IMHO.

Glenn - September 29th, 2019
5 out of 5

These are very high quality and will last years

Bob R - August 10th, 2019
5 out of 5

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

Jeff Duncan - May 28th, 2019
5 out of 5

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

wishbone - May 10th, 2016
5 out of 5

best jack in the industry, still!!!

Darren - December 1st, 2015
5 out of 5

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.