
1/4" Jack - Switchcraft, Mono, shunt tip
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 Standard (0.275"):

SKU:
W-SC-12A
Item ID:
004913
Brand:
Switchcraft
RoHS Compliant
Bushing Length | Our Part Number | UPC/EAN | Switchcraft Part Number |
---|---|---|---|
Standard (0.275") | W-SC-12A | 609722127080 | 12A |
Long (0.375") | W-SC-L12A | 609722127288 | L12A |
Chassis Hole Diameter | Long (0.375") version | W-SC-L12A | 0.375 in. |
Item Diameter | 0.75 in. | ||
Item Length | Long (0.375") version | W-SC-L12A | 1.115 in. |
Standard (0.275") version | W-SC-12A | 1.015 in. | |
Mounting Hole Diameter | Standard (0.275") version | W-SC-12A | 0.0375 in. |
Plug Diameter | 0.25 in. |
Packaging Dimensions | Long (0.375") version | W-SC-L12A | 1.3 in. × 0.9 in. × 0.8 in. |
Standard (0.275") version | W-SC-12A | 1.3 in. × 0.9 in. × 0.9 in. | |
Weight (Packaging) | 0.0243 lbs. |
W-SC-L12A - Long (0.375") version | Chassis Hole Diameter | 0.375 in. |
Item Diameter | 0.75 in. | |
Item Length | 1.115 in. | |
Plug Diameter | 0.25 in. | |
W-SC-12A - Standard (0.275") version | Item Diameter | 0.75 in. |
Item Length | 1.015 in. | |
Mounting Hole Diameter | 0.0375 in. | |
Plug Diameter | 0.25 in. |
![]() | W-SC-12A |
![]() | W-SC-12A |
![]() | W-SC-L12A |
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Product Reviews
I used this shunt tip Switchcraft jack on the back of a Fender Champion 600 so I could easily patch in an attenuator. Since the shunt tip is wired to cut out the speaker, I can also use this jack to patch to an external speaker cab. Handy! I also used the Les Paul jack plates to mount the jacks.
These are the best shunned tip jacks out there. Could not be more pleased with the speed at which AmplifiedParts gets my orders out to me.
Gold standard in 1/4 jacks