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DA3 Series
DA3
0.1 amp
Subminiature
Features
s
Long life coil spring
construction
s
Standard gold crosspoint
contacts (0.1 amp) for low level
switching applications
s
Silver contacts low voltage
DAB version also available. Not
agency approved. Consult
factory.
s
Five standard terminals to
choose from
s
Automated assembly insures
high quality and reliability
s
Choice of external snap-on
actuators
s
Custom actuators available
OR
®
Thermoplastic
Actuating Button
Thermoplastic
Cover and Base
Stainless
Steel Spring
Gold
Crosspoint
Contacts
Plated
Terminals
Common
Terminal
Beryllium Copper
Moving Blade
NO Terminal
NC Terminal
2-6
DA3 Series
Dimensions:
Inches (mm)
0.781 (19.84)
Subminiature
2
PCB Footprint
0.405
0.238
0.250
(6.35)
C
0.063 Ø (3)
0.089 (2.26) Case Opening Diameter
0.300
+
0.010
-
(7.62
+
0.254)
-
0.330
+
0.015 Operate
-
(8.38
+
0.381) Position
-
NO
NC
0.081 (2.06)
Button Diameter
0.093
(2.36)
0.375
(9.53)
COM
0.095 (2.41)
0.101 (2.57)
N.O.
N.C.
0.352
(8.94)
0.085 (2.16)
0.091 (2.31)
0.085 (2.16)
0.091 (2.31)
0.375
+
0.005
-
(9.53
+
0.127)
-
0.405
(10.29)
0.238
(6.05)
Reference
Line
0.209
(5.31)
0.075
(1.91)
Contacts & Ratings
Series
Prefix
DA3
Temperature Rating
Flammability Rating
Rating
0.1 amp 125 VAC
Gold Crosspoint Contacts
-40° to +85°C
UL94V-O
Actuators
Many special forms and lengths of actuators are available.
External actuators can be snapped on in either of two
locations (standard lever ratio or high lever ratio). Actuator
lengths are dimensioned from centerline of switch mounting
hole (see drawing).
C
Actuating Button
L
0.191
0.066
High Ratio
Actuator
Length
Electrical Specifications/Life
See electrical life chart on page 11-4.
Standard Ratio
Switch
Mtg Hole
Circuitry
Contact arrangement available in choice of single pole
double throw, or single pole single throw, either normally
open or normally closed.
Terminals
The DA Series is available in five standard terminal types.
0.125
0.250
0.344
0.160
0.191
0.293
Mounting
0.093
0.110
0.110
0.050
0.110
Recommended mounting screw size: #2-56 round head.
Recommended torque on screw: 2 inch lbs. max.
(with flat washer min. 0.240″ outside diameter).
0.093 x 0.020
QC
Code F
0.110 x 0.020
QC
Code B
0.110 x 0.020
SS
Code D
0.050 x 0.020
PCB
Code H
0.110 x 0.020
DIN
Code K
2-7
DA3 Series
Materials
Case
Actuating Button
Terminals
Moving Blade
Contacts
Spring
Auxiliary Actuators
Roller
Thermoplastic Polyester
Thermoplastic Acetal
Silver Plated Bronze
Silver Plated Beryllium Copper
Gold Crosspoint
Stainless Steel Copper Coated
Stainless Steel
Cold-Rolled Steel (Nickel Plated)
Stainless Steel
Subminiature
Ordering Actuators Separately
There are three standard actuators available plus
an extra long actuator which may be used for customizing
forms and lengths. To order actuators for the DA3 Series
Subminiature Switch, use the actuator part number shown.
Actuators may be ordered separately and installed on
switches as required.
Standard lever actuator
for 1LB and 1MB
Part No. 0014-5576
Simulated roller actuator
for 1SB and 1UB
Part No. 0014-5594
3.066
How to Order
Combine the corresponding Series/Prefix number with the
appropriate suffix number for the switch type, circuitry and
terminals you require.
Example:
To order a DA3 Series Subminiature Switch,
double throw circuitry, 0.110" x 0.020" quick connect
terminal, standard terminal configuration, a basic button
type, Part Number is DA3C-B1AA.
Note:
Silver contact, low voltage versions available – consult factory.
Roller actuator
for 1RB and 1TB
Part No. 0114-0737
C
L
Extra long actuator
for customizing
Part No. 0014-5519
Ordering Information
DA
Series/Prefix
Code
A
B
C
Contact
Config.
SPST N.O.
SPST N.C.
SPDT
Code
1
W
Code
F
B
D
H
K
3
C
B
1
Terminal
Config.
Standard
Special
A
A
Current Rating
Code
UL
VDE
3
0.1 amp 0.1 amp
(0.05 amp)
125 VAC 50 VAC
C
O
D
E
Code
Actuator
Button
Lever
Actuator
Roller
Actuator
Simulated
Roller
A
—
Standard Ratio .154
High Ratio
.279
Standard Ratio (-.061)
High Ratio
.064
Standard Ratio .110
High Ratio
.235
Actuator
Length
B
—
.271
.396
.201
.326
.197
.322
C
—
.403
.528
.330
.455
.255
.380
Terminal Type
0.093 x 0.020 QC
0.110 x 0.020 QC
0.110 x 0.020 SS
0.050 x 0.020 PCB
0.110 x 0.020 DIN
A
L
M
R
T
S
U
Actuator lengths are dimensioned from
center line of switch mounting hole.
Refer to dimensional drawing on page 2-7.
2-8
DA3 Series
OF
Max. gms.
Subminiature
2
Characteristics:
OF – Operating Force, PT – Pretravel, OP – Operating Point,
OT – Overtravel, MD – Movement Differential, AL – Actuator Length
Switch Types
PT
Max. Inches
OT
Min. Inches
MD
Max. Inches
AL
Inches
OP
Inches
90
-F1AA
0.030
0.035
0.007
—
0.345
0.315
27
-F1LB
0.144
0.054
0.028
0.271
0.348
±
0.060
9
-F1MB
0.416
0.078
0.081
0.396
0.350
±
0.173
30
-F1RB
0.131
0.046
0.025
0.201
0.571
±
0.054
10
-F1TB
0.379
0.067
0.074
0.326
0.571
±
0.173
30
-F1SB
0.131
0.046
0.025
0.197
0.571
±
0.054
10
-F1UB
0.379
0.067
0.074
0.322
0.571
±
0.173
Remarks:
* Measured above reference line. Refer to dimensional drawing on page 2-7.
2-9
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