LITTEL-JAX 2- AND 3- CONDUCTOR
94
JACKS AND PLUGS
?
PHONE: 773 792-2700
* Please visit the product pages on our website for the most up-to-date product information
1/4" PHONE JACKS
PREFIX OPTIONS
Blank- 1/4" Commercial Jack
SERIES
1-Littel Jax ?
CIRCUITRY
1- I
14B
PC-12A
C-
FA-
FAL-
Accepts Mill Plug
.205" Faston Terminals
.205" Faston Terminals
2A- III
2B- IV
3- V
and .375" Long Bushing
L-
PC-
S-
.375" Long Bushing
PC Terminals
Accepts .206 Diameter Plugs
3A-
3B-
3E-
4B-
VI
VII
IX
XII
TWO CONDUCTOR PART NUMBERS
FAL-11
.205 FASTON
TERMINAL
11
Part
Number
Description
Jack
Schematic 1
Typical
Mating
Plug
LITTEL-JAX ? COMMERCIAL PHONE JACKS
2- AND 3-CONDUCTOR
Littel-Jax phone jacks mate with standard commercial phone
plugs and are available with .25" and .21" inside diameter
bushings.
MIL LITTEL-JAX ? PHONE JACKS
2- AND 3-CONDUCTOR MIL-SPEC, MIL-J-641 (E)
MIL jacks mate with MIL-type phone plugs with .25" (6.35mm)
or .21" (5.34mm) diameter bushings. Numbers C11 and C12B
have a non-turn locating pin which keys the jack to the
mounting surface. For low contact resistance applications,
jack number C12A has fine silver contacts on shunts and
tip springs.
11
C11
FA11
FAL11
L11
12A
C12A
L12A
PC12A
13
13A
13E
Open circuit
MIL Number M641/6-1
.205 inch FASTON terminal
.375 inch long bushing
.205 FASTON terminal
.375 inch long bushing
Tip shunt
MILNumber M641/12-1
.375 inch long bushing
PC board mount
Isolated “make” circuit
Transfer circuit
Isolated “break” circuit
I
I
I
I
I
III
III
III
III
V
VI
IX
250
440
250
250
250
250
440
250
250
250
250
250
MOUNTING
Chassis/Panel: See Mounting Data drawing below;
THREE CONDUCTOR PART NUMBERS
smallhole is required only for jacks numbers C11 and C12B
with non-turn locating pin.
Maximum Panel Thickness: .156" (4mm) for standard
.276" (7mm) long bushing; .25" (6.35mm) for .375" (9.5mm)
long bushing.
NOTE: For panels thicker than .25" see Thick Panel Phone Jax.
Insulated Mount: See drawing. S1028 flatwasher and
Part Number S1029 shoulder washer must be ordered
12B
L12B
C12B
13B
14B
Double open circuit
.375 inch long bushing
MIL number M641/5-1,
.250 inch inside diameter
Tip shunt
Double closed circuit
IV
IV
IV
VII
XII
267
267
480
267
267
separately for mounting in .437" diameter hole.
NOTE: See Hi-D Jax ? for jack specifically designed for
insulated mounting without additional washers.
PART NUMBERS
(.210" INSIDE DIAMETER BUSHING)
PC Board Mounting: See Recommended PC Board Layout
drawing below for jacks with PC terminals. Recommended
PC board thickness is .062".
Mounting Centers: 1.188" (30mm) recommended. Centers
may vary with jack selected, for example, Number
S11
S12A
S12B
S13B
2
2
3
3
conductor
conductor
conductor
conductor
I
III
IV
VII
S250
S250
S267
S267
11 mounts on .813" (20.6mm) and 14B mounts on
1.125" (28.6mm) minimum centers.
STEREO JACK
CONNECTIONS
1. Refer to jack schematics on pages 79 and 80. Other circuits are available;
contact factory.
DIMENSIONS ARE FOR REFERENCE ONLY
www.switchcraft.com
Inch
(mm)
? Registered trademark of Switchcraft, Inc.
Note: Contact your Switchcraft Representative for price and delivery
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