SUBMINIATURE
DA Series
Features
G
G
Long life coil spring construction
Standard gold crosspoint
contacts (0.1 amp) for low level
switching applications
Silver contact low voltage DAB
version also available. Consult factory.
Five standard terminals to choose from
Automated assembly insures high
quality and reliability
Choice of external snap-on actuators
Custom actuators available
VDE approved
Common terminal
Thermoplastic
actuating button
Thermoplastic
cover and base
Stainless steel spring
G
G
G
Gold crosspoint
contacts
Silver-plated terminals
G
G
G
NC terminal
Beryllium copper
moving blade
NO terminal
Electrical Ratings
Switch
Series
EN61058 Rating
UL1054 Rating
Electrical Life at Rated Load
According to VDE
According to UL
(Min. Operations)
(Min. Operations)
DA3
DAB
0.1(0.05)A, 50VAC
N/A
0.1A, 125VAC
5A, 24VAC; 1A, 48VDC
50,000
N/A
100,000
6,000
Specifications
Electrical
Temperature Rating:
Flammability Rating:
Materials
-40° to +85°C
UL94V-0
Thermoplastic Polyester
Thermoplastic Acetal
Silver-Plated Bronze
Silver-Plated Beryllium Copper
Copper-Coated Stainless Steel
Stainless Steel
Stainless Steel
Gold Crosspoint
(DA3)
, Silver
(DAB)
Case:
Actuating Button:
Terminals:
Moving Blade:
Spring:
Auxiliary Actuator:
Roller:
Contacts:
Dimensions
inches (mm)
PCB Footprint
0.238
(6.05)
NO
NC
0.781 (19.84)
Terminals
QC
(Code B)
SS
(Code D)
0.125
(3.18)
0.050
(1.27)
dia.
0.344
(8.74)
0.058
(1.47)
dia.
0.110 (2.79)
0.110 x 0.020
(2.79 x 0.51)
0.405 (10.29)
C
0.063 Ø (3)
(1.60)
0.250
(6.35)
0.081 (2.06)
Button Diameter
0.089 (2.26) Case Opening Diameter
0.300
+
0.010
-
(7.62
+
0.25)
-
0.330
+
0.015 Operate
-
(8.38
+
0.38) Position
-
0.110 (2.79)
0.110 x 0.020
(2.79 x 0.51)
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).
Actuation lengths are dimensioned
from centerline of switch mounting
hole (see drawing).
C
Actuating Button
L
0.066
(1.68)
Actuation
Length
QC
(Code F )
PCB
(Code H)
0.191
(4.85)
0.093
(2.36)
0.375
(9.53)
COM
0.250 (6.35)
0.160
(4.06)
0.095 (2.41)
0.101 (2.57)
N.O.
N.C.
0.352
(8.94)
0.093 (2.36)
0.093 x 0.020
(2.36 x 0.51)
0.050 (1.27)
0.050 x 0.020
(1.27 x .51)
0.085 (2.16)
0.091 (2.31)
0.085 (2.16)
0.091 (2.31)
0.375
+
0.005
-
(9.53
+
0.13)
-
0.405
(10.29)
0.238
(6.05)
DIN
(Code K )
Reference
Line
0.293
(7.44)
0.051
(1.30)
dia.
0.209
(5.31)
0.075
(1.91)
0.110 (2.79)
0.110 x 0.020
(2.79 x 0.51)
0.191
(4.85)
High Ratio
Standard Ratio
Switch
Mounting
Hole
Actuator Specifications
Actuator
Type
Switch
Type
Maximum
Operating
Force
(gms.)
Maximum
Pre-Travel
inches
(mm)
Operating
Point
inches
(mm)
Minimum
Over-Travel
inches
(mm)
Max. Movement
Differential
inches
(mm)
Actuation
Length
inches
(mm)
–AA
–LB
–MB
–RB
–TB
–SB
–UB
90
27
9
30
10
30
10
0.030
(0.76)
0.144
(3.66)
0.416
(10.57)
0.131
(3.33)
0.379
(9.63)
0.131
(3.33)
0.379
(9.63)
0.330±0.015
(8.38±0.38)
0.348±0.060
(8.84±1.52)
0.350±0.173
(8.90±4.39)
0.571±0.054
(14.50±1.37)
0.571±0.173
(14.50±4.39)
0.571±0.054
(14.50±1.37)
0.571±0.173
(14.50±4.39)
0.035
(0.89)
0.054
(1.37)
0.078
(1.98)
0.046
(1.17)
0.067
(1.70)
0.046
(1.17)
0.067
(1.70)
0.007
(0.18)
0.028
(0.71)
0.081
(2.06)
0.025
(0.64)
0.074
(1.88)
0.025
(0.64)
0.074
(1.88)
—
—
0.271
(6.88)
0.396
(10.06)
0.201
(5.11)
0.326
(8.28)
0.197
(5.00)
0.322
(8.18)
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 Sub-
miniature Switch, use the actuator
part number shown. Actuators may be
ordered separately and installed on
switches as required.
Circuitry
Contact arrangement available in choice
of single pole double throw, or single
pole single throw, either normally open
or normally closed.
Mounting
Recommended mounting screw size: #2–56
round head. Recommended torque on
screw: 2 inch lbs. max. (with flat washer min.
0.240″ [6.10mm] outside diameter).
Standard Lever Actuator
for LB and MB
Part No. 0014-5576
Simulated Roller Actuator
for SB and UB
Part No. 0014-5594
3.066 (77.876)
Roller Actuator
for RB and TB
Part No. 0114-0737
C
L
Extra Long Actuator
for Customizing
Part No. 0014-5519
Ordering Information
DA
Series/Prefix
3
C
B
Code
B
D
F
H
K
Terminal Type
inches (mm)
0.110 x 0.020 (2.79 x 0.51) QC
0.110 x 0.020 (2.79 x 0.51) SS
0.093 x 0.020 (2.36 x 0.51) QC
0.050 x 0.020 (1.27 x 0.51) PCB
0.110 x 0.020 (2.79 x 0.51) DIN
1
A
Code
AA
L
M
R
T
S
U
Actuator Type
Button
Lever Standard Ratio
Lever High Ratio
Roller Standard Ratio
Roller High Ratio
Simulated Roller Standard Ratio
Simulated Roller High Ratio
A
Code
A
—
0.154 (3.91)
0.279 (7.09)
-0.061 (-1.55)
0.064 (1.63)
0.110 (2.79)
0.235 (5.97)
Actuation Length
inches (mm)
B
C
—
—
0.271 (6.88)
0.403 (10.24)
0.396 (10.06)
0.528 (13.41)
0.201 (5.11)
0.330 (8.38)
0.326 (8.28)
0.455 (11.56)
0.197 (5.00)
0.258 (6.55)
0.322 (8.18)
0.383 (9.73)
Code Current Rating
3
0.1A, 125VAC
B
5A, 24VDC
Code
A
B
C
Contact Configuration
SPST NO
SPST NC
SPDT
Code Terminal Configuration
1
Standard
Actuation lengths are dimensioned from center line of switch mounting hole. Refer to dimensional drawing.
Specifications subject to change without notice.
17
Embedded System
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