1/4" SHIELDED PHONE JACKS AND SF-JAX® SHORT FRAME JACKS

1. 1/4" SHIELDED PHONE JACK SERIES CN12A
2. 1/4" SHIELDED PHONE JACK SERIES CN12A

click here to download a schematic drawing
(you will need to have Adobe Acrobat installed on your system to do this)

1/4" SHIELDED PHONE JACKS

Shield is assembled as part of the jack; cover "snaps" into place. Shield is designed for Hi Z circuits. Mounting is through a 3/8 inch diameter hole in chassis/panel up to .156 inches thick with hex nut and flat washer (supplied). On special order, jacks with .21 inch inside diameter bushing are available.

SPECIFICATIONS

MATERIAL

Cover and Shield: Copper alloy, nickel-plated.

Cable Entry Insulation: Thermoplastic.

SF-Jax® SHORT FRAME JACKS

Part No.	Cond.	Schematic Number	Typical Mating Plug	MIL Type	Contacts	Rating	Mounting In. (mm)
24B	3	XII	267	----	Fine Silver	3A 125V AC	.375 (9.52) hole, mounts in panels up to .156 (3.96) thick
25	2	XIII	250	----
ý53B	3	VII	267	----
ý54A	2	XI	250	----
ý54B	3	XII	267	----
ý55	2	XIII	250	----
ý-55B	3	XV	482	JJ-095, M641/14-1

Long spring design reliability with minimum behind-panel depth. Series 50 same as Series 20, except solder lug location requires more depth, but less panel space. Number C55B has MIL type insulation and finish.

TWO CONDUCTOR PART NUMBERS
Part Number	Description	Jack Schematic1
CN11	Uses Number 11 Littel-Jax® jacks	I
ý CN12A	Uses Number 12A Littel-Jax jacks	III
ý Special order only. Contact Switchcraft.

THREE CONDUCTOR PART NUMBERS
CN12B	Uses Number 12B Littel-Jax jacks	IV
ý CN13B	Uses Number 13B Littel-Jax jacks	VII
1 See jack schematics on pages 65 and 66. 2 See Plug Section for mating information. ý Special order only. Contact Switchcraft.

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All products shown are covered by Switchcraft's limited lifetime warranty.