The 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.
P3900 SERIES
Miniature Multi-Deck Flux-Proof Rotary Switches
ISO9001 CERTIFIED
P3900 SERIES
P3900 SERIES
Miniature Multi-Deck Flux-Proof Rotary Switches
2650 South Croddy Way P.O. Box 25063 Santa Ana, California 92799-5063 USA
PHONE 714.556.3100 SALES FAX 714.241.9061 www.cole-switches.com
ISO9001 CERTIFIED
P3900 Series/Page 2
P3900 Standard – .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).
P3900 Screwdriver – .250 Shaft Diameter
(See Page 4)
P3900 Standard – .125 Shaft Diameter
(See Page 3)
P3900 Screwdriver – .125 Shaft Diameter
(See Page 3)
P3900 SERIES
P3900 SERIES
Miniature Multi-Deck Flux-Proof Rotary Switches
2650 South Croddy Way P.O. Box 25063 Santa Ana, California 92799-5063 USA
PHONE 714.556.3100 SALES FAX 714.241.9061 www.cole-switches.com
ISO9001 CERTIFIED
P3900 Series/Page 3
P3900 SERIES FEATURES:
• Flux contamination free. • Ball bearing-smooth detent indexing.
• MIL-S-3786 Qualifi ed. • Constant low contact resistance.
• 1 Amp. power switching. • Rugged, high impact construction.
• 100,000 plus operation life cycle.
NOTES
1. Dimensions are in inches.
2. Unless otherwise specifi ed, 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)
FIGURE A
.125 SHAFT DIAGRAM
P3900 SERIES
P3900 SERIES
Miniature Multi-Deck Flux-Proof Rotary Switches
2650 South Croddy Way P.O. Box 25063 Santa Ana, California 92799-5063 USA
PHONE 714.556.3100 SALES FAX 714.241.9061 www.cole-switches.com
ISO9001 CERTIFIED
P3900 Series/Page 4
ORDERING INFORMATION
MULTIDECK SWITCHES
Add the total number of deck required as a dash No. after
the part number.
SAMPLE CODE
Switch shown in the sample code is 45° indexing, 2 pole per deck,
4 positions per pole, 3 decks, with shorting type contacts.
NOTES:
1. Dimensions are in inches.
2. Unless otherwise specifi ed, 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.
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
confi gurations. Omit for non-shorting).
SD = Screwdriver slot.
T = Pre-Tinned Terminals.
Y = Optional .432 Non-Turn Washer.
Z = Mounting Bushing Washer.
FIGURE B
.250 SHAFT DIAGRAM
Shorting Decks
(Omit for non-shorting)
Number of Decks
Number of Positions per Pole
Number of Poles
Degree Between Positions
Cole Basic Switch Number
S39 45 - 2 04 03 S
P3900 SERIES
P3900 SERIES
Miniature Multi-Deck Flux-Proof Rotary Switches
2650 South Croddy Way P.O. Box 25063 Santa Ana, California 92799-5063 USA
PHONE 714.556.3100 SALES FAX 714.241.9061 www.cole-switches.com
ISO9001 CERTIFIED
P3900 Series/Page 5
P3900 Specials – Concentric Shaft
Side View
Front View Rear View
P3900 SERIES
P3900 SERIES
Miniature Multi-Deck Flux-Proof Rotary Switches
2650 South Croddy Way P.O. Box 25063 Santa Ana, California 92799-5063 USA
PHONE 714.556.3100 SALES FAX 714.241.9061 www.cole-switches.com
ISO9001 CERTIFIED
P3900 Series/Page 6
P3900 Specials – Add-a-Pot
Side View
Front View Rear View
P3900 SERIES
P3900 SERIES
Miniature Multi-Deck Flux-Proof Rotary Switches
2650 South Croddy Way P.O. Box 25063 Santa Ana, California 92799-5063 USA
PHONE 714.556.3100 SALES FAX 714.241.9061 www.cole-switches.com
ISO9001 CERTIFIED
P3900 Series/Page 7
Terminal Pin Location
P3900 SERIES
P3900 SERIES
Miniature Multi-Deck Flux-Proof Rotary Switches
2650 South Croddy Way P.O. Box 25063 Santa Ana, California 92799-5063 USA
PHONE 714.556.3100 SALES FAX 714.241.9061 www.cole-switches.com
ISO9001 CERTIFIED
P3900 Series/Page 8
Terminal Pin Location
P3900 SERIES
P3900 SERIES
Miniature Multi-Deck Flux-Proof Rotary Switches
2650 South Croddy Way P.O. Box 25063 Santa Ana, California 92799-5063 USA
PHONE 714.556.3100 SALES FAX 714.241.9061 www.cole-switches.com
ISO9001 CERTIFIED
36° INDEXING
45° INDEXING
30° INDEXING
P3900 Series/Page 9
P3900 SERIES
P3900 SERIES
Miniature Multi-Deck Flux-Proof Rotary Switches
2650 South Croddy Way P.O. Box 25063 Santa Ana, California 92799-5063 USA
PHONE 714.556.3100 SALES FAX 714.241.9061 www.cole-switches.com
ISO9001 CERTIFIED
P3900 Series/Page 10
INTERNAL TOOTH
LOCK-WASHER
HEX-NUT
KEY WASHERS
3/8 FERRULE SIZE
MOUNTING BUSHING WASHER
1/4 FERRULE SIZE
MOUNTING BUSHING WASHER
3/8 FERRULE SIZE
VOLTAGE 115 VAC
OR 30 VDC
RESISTIVE
VOLTAGE 30 VDC
INDUCTIVE
(250 MILLIHENRIES)
Data determined from life tests at 25°C, 68% relative humidity at sea level. One cycle is a rotation of 360° and back to postion 1.
Based on life-limiting criteria specifi ed in Technical Data.
RECOMMENDED PANEL CUTOUT
1/4 FERRULE SIZE
RECOMMENDED PANEL CUTOUT
3/8 FERRULE SIZE
Typical Features
FLATTED
FERRULE
Life Expectancy
P3900 SERIES
P3900 SERIES
Miniature Multi-Deck Flux-Proof Rotary Switches
2650 South Croddy Way P.O. Box 25063 Santa Ana, California 92799-5063 USA
PHONE 714.556.3100 SALES FAX 714.241.9061 www.cole-switches.com
ISO9001 CERTIFIED
P3900 Series/Page 11
