P3900 SERIES
Miniature Multi-Deck Flux-Proof Rotary Switches
T
he Cole Series P3900 miniature P.C. termination rotary switch
is designed to provide the ultimate mechanical and electrical
reliability in instrumentation, industrial controls, medical equipment,
aircraft, computers, communication, weapons, and ground support
electronic equipment.
This precision switch is designed for high and low level switching,
engineered to meet the requirements of MIL-S-3786 and tested per
MIL-STD-202 as follows:
• THERMAL SHOCK PER MIL-STD-202; METHOD 107, TEST CONDITION “B”
• VIBRATION PER MIL-STD-202; METHOD 204, TEST CONDITION “B”
• MEDIUM SHOCK PER MIL-STD-202; METHOD 213
• HIGH SHOCK PER MIL-STD-202; METHOD 207
• MOISTURE RESISTANCE PER MIL-STD-202; METHOD 106
• EXPLOSION PROOF PER MIL-STD-202; METHOD 109
• SALT SPRAY PER MIL-STD-202; METHOD 101, CONDITION “B”
The Series P3900 is available with 30°, 36° and 45° indexing and
one to six poles per deck. Self cleaning contacts are ideal for low
level switching and offer low contact resistance through the life of
the switch (25,000 cycles minimum). A hardened steel sprocket and
ball bearing detent mechanism provides smooth positive detent
action and mechanical life in excess of 100,000 cycles. Cole’s unique
terminal design and sealing technique prevents flux contamination
during wave soldering and cleaning processes. Internal plastic parts
are made of fiber filled plastic to prevent degrading and interior
contamination by plastic dust. Finally, superior construction, in
a clean room environment, ensures ultimate performance and
reliability from the Cole Series P3900 rotary switch.
ISO9001 CERTIFIED
P3900 SERIES
Miniature Multi-Deck Flux-Proof Rotary Switches
P3900 Series/Page 2
P3900 Standard – .125 Shaft Diameter
(See Page 3)
P3900 Standard – .250 Shaft Diameter
(See Page 4)
P3900 Screwdriver – .125 Shaft Diameter
(See Page 3)
P3900 Screwdriver – .250 Shaft Diameter
(See Page 4)
NOTES:
P3900 Standard
–
.125 Shaft Dia., .250 Ferrule Dia., .688 Body Dia., (See Page 3).
P3900 Screwdriver
–
.125 Shaft Dia., .250 Ferrule Dia., 0.688 Body Dia., (See Page 3).
P3900 Standard
–
.250 Shaft Dia., .375 Ferrule Dia., .688 Body Dia., Panel Seal, (See Page 4).
P3900 Screwdriver
–
.250 Shaft Dia., .375 Ferrule Dia., 0.688 Body Dia., Panel Seal, (See Page 4).
2650 South Croddy Way
PHONE 714.556.3100
P.O. Box 25063 Santa Ana, California 92799-5063 USA
SALES FAX 714.241.9061
www.cole-switches.com
ISO9001 CERTIFIED
P3900 SERIES
Miniature Multi-Deck Flux-Proof Rotary Switches
P3900 Series/Page 3
P3900 SERIES FEATURES:
• Flux contamination free.
• MIL-S-3786 Qualified.
• 1 Amp. power switching.
• 100,000 plus operation life cycle.
• Ball bearing-smooth detent indexing.
• Constant low contact resistance.
• Rugged, high impact construction.
FIGURE A
.125 SHAFT DIAGRAM
NOTES
1. Dimensions are in inches.
2. Unless otherwise specified, tolerances are ±.005 and ±3° on angles (Non-accumulative).
3. Shaft
fl
at opposite position being made.
4. Add .218 to the length for each additional deck.
5. For switches with more than 5 decks the stud projection is .312 plus.
6. If more than 12 decks or 48 poles are required, contact the factory.
7. Switches are provided with full circle of terminals, regardless of the number of active positions.
8. With 2 or more decks, spacing decks are available. The spacers are the same thickness as a deck (.218)
2650 South Croddy Way
PHONE 714.556.3100
P.O. Box 25063 Santa Ana, California 92799-5063 USA
SALES FAX 714.241.9061
www.cole-switches.com
ISO9001 CERTIFIED
P3900 SERIES
Miniature Multi-Deck Flux-Proof Rotary Switches
P3900 Series/Page 4
FIGURE B
.250 SHAFT DIAGRAM
NOTES:
1. Dimensions are in inches.
2. Unless otherwise specified, tolerances are ±.005 and ±3° on angles (Non-accumulative).
3. Shaft
fl
at opposite position being made.
4. Add .218 to the length for each additional deck.
5. For standard, shaft
fl
at is .250
6. For standard, shaft length is .375 ±.020
7. For switches with more than 5 decks, the stud projection is .312
8. Switches are provided with full circle of terminals, regardless of the number of active positions.
ORDERING INFORMATION
MULTIDECK SWITCHES
Add the total number of deck required as a dash No. after
the part number.
SAMPLE CODE
S39 45 - 2 04 03 S
Shorting Decks
(Omit for non-shorting)
Number of Decks
Number of Positions per Pole
Number of Poles
Degree Between Positions
Cole Basic Switch Number
Switch shown in the sample code is 45° indexing, 2 pole per deck,
4 positions per pole, 3 decks, with shorting type contacts.
OPTIONS
The following options can be added to the standard switch.
When ordering, simply add the letters after the basic
part number. Options listed in alphabetical order only.
A = Adjustable stops.
F = Fixed stop between the
fi
rst and last position on
a full turn switch.
G = RFI-EMI shielding.
L = Dry circuit (low level).
P = Panel and shaft seals.
Q = 1/4 dia. Shaft (Omit for 1/8 Dia. Shaft)
S = Shorting type switch. (Available in all
configurations. Omit for non-shorting).
SD = Screwdriver slot.
T = Pre-Tinned Terminals.
Y = Optional .432 Non-Turn Washer.
Z = Mounting Bushing Washer.
2650 South Croddy Way
PHONE 714.556.3100
P.O. Box 25063 Santa Ana, California 92799-5063 USA
SALES FAX 714.241.9061
www.cole-switches.com
ISO9001 CERTIFIED
P3900 SERIES
Miniature Multi-Deck Flux-Proof Rotary Switches
P3900 Series/Page 5
P3900 Specials – Concentric Shaft
Side View
Front View
Rear View
2650 South Croddy Way
PHONE 714.556.3100
P.O. Box 25063 Santa Ana, California 92799-5063 USA
SALES FAX 714.241.9061
www.cole-switches.com
ISO9001 CERTIFIED
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