Features
■
■
■
■
■
Applications
Signal/circuit select
■
Board address
■
Test equipment
■
8,10 or 16 position coded switch
Miniature industrial switch multi-position
Vertical adjust
Rugged surface mount design
Rugged lead frame construction
7743 SMD 7 mm Square Sealed Coded Switch
Electrical Characteristics
Contact Rating
Maximum Current ...........100 mA max.
Maximum Voltage .........................16 V
Contact Resistance
..............................100 milliohms max.
Insulation Resistance .....1000 megohms
Dielectric Strength ....................250 volts
General Characteristics
Switch Type ..................................Binary
Operating Temperature Range
................................-55 °C to +125 °C
Storage Temperature Range
................................-55 °C to +125 °C
Seal Test .......................85 °C Fluorinert*
Mechanical Characteristics
Positions ................................8, 10 or 16
Adjustment Detent Torque
....................................... 0.2-2.0 N-cm
Environmental Characteristics
Shock ............................................100 G
0.1 ms. max. discontinuity
Vibration ..........................................30 G
0.1 ms. max. discontinuity
Thermal Shock (5 cycles)
................................-55 °C to +125 °C
Contact Resistance
.............................100 milliohms max.
Humidity
Insulation Resistance
................................10 megohms min.
Contact Resistance
..............................100 milliohms max.
Actuation Life .......................1,000 steps
Contact Resistance
..............................100 milliohms max.
Maximum Soldering Heat ...........245 °C,
.............................................5 seconds
Standard Packaging
Tube ......................J, G = 50 pcs./tube
H = 100 pcs./tube
Tape & Reel .....................250 pcs./reel
How to Order
8
4
Product Dimensions
7743J
7.16
(.282)
1
C
2
7743G
7.16
(.282)
3.38
(.133)
1
C
2
1.07 TYP
(.042)
3.38
(.133)
7.01
(.276)
7.24
(.285)
0.51
(.020)
8
4
7.01
(.276)
9.37
(.369)
8
4
0.38
±
0.10
(.015
±
.004)
2.54 TYP
(.10)
2.79
(.110)
2.54 TYP
(.10)
0.51
(.020)
0.51 TYP
(.020)
0.51 TYP
(.020)
2.79
(.110)
RECOMMENDED PCB LAYOUT
5.08
(.200)
RECOMMENDED PCB LAYOUT
5.08
(.200)
2.54
(.10)
2.54
(.10)
2.03
TYP
(.080)
2.03
TYP
(.080)
5.99
±
0.25
(.236
±
.010)
8.31
±
0.25
(.327
±
.010)
0.76
TYP
(.030)
0.76
TYP
(.030)
7743H
7.16
(.282)
1
C
2
5.08
(.200)
3.18
(.125)
7.01
(.276)
8.56 +0.20/ -0.31
(.337 +.008/ -.012)
7743 J - 1 - 008 E
Model
Terminal
Switch Type
1 = Standard
Number of Positions
008 = Binary coded octal
010 = Binary coded decimal
016 = Binary coded hexadecimal
Embossed Tape Option
(Omit letter for tube)
2.79
(.110)
2.54 TYP
(.10)
0.51
(.020)
0.20
(.007)
0.38
±
0.10
(.015
±
.004)
RECOMMENDED PCB LAYOUT
2.54
TYP.
(.100)
7.24
(.285)
0.51 TYP
(.020)
0.76
TYP.
(.030)
TOLERANCES:
±.2
EXCEPT WHERE NOTED.
MM
DIMENSIONS:
(IN)
"OFF" POSITION IS COMMON.
Specifications are subject to change without notice.
7743 SMD 7 mm Square Sealed Coded Switch
Packaging Specifications
7743 J&G
.40 MAX.
(.016)
3.60
±
.10
(.141
±
.004)
Binary (REAL) Code
7743 J
0.64
(.025)
0.51
(.020)
10.16
(.40)
8.03
(.316)
4.09
(.161)
8 POSITIONS
(Binary Coded Octal)
1
0
1
2
3
4
5
6
7
X
X
X
X
X
X
X
X
X
X
X
X
2
4
C
X
X
X
X
X
X
X
X
S
NC
NC
NC
NC
NC
NC
NC
NC
7.50
±
0.5
(.295
±
.020)
1.5 + .10/ –.00
DIA.
(.059 + .004.–.00)
7.60
±
.10
(.299
±
.004)
2.54
(.10)
4.00
±
.10
(.157
±
.004)
TUBE LENGTH - 384MM.
UNITS PACKAGED 50 PIECES PER TUBE.
7.40
±
.10
(.291
±
.004)
2.31
(.091)
R 0.51 TYP.
2.00
±
.05
(.079
±
.002)
7743 G
0.64
(.025)
10.16
(.40)
8.03
(.316)
4.09
(.161)
10 POSITIONS
(Binary Coded
Decimal)
1
0
1
2
3
4
5
6
7
8
9
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
2
4
8
C
X
X
X
X
X
X
X
X
X
X
12.00
±
.20
(.472
±
.007)
1.75
±
.10
(.069
±
.004)
16.00
±
.30
(.630
±
.012)
TAPE
0.51
(.020)
2.54
(.10)
TUBE LENGTH - 384MM.
UNITS PACKAGED 50 PIECES PER TUBE.
2.31
(.091)
R 0.51 TYP.
13.0
±
.508
(.512
±
.020) DIA.
1.78
±
.254
(.070
±
.010) EQUAL SPACED 3 PLCS.
21.01
±
.787
(.827
±
.031) DIA.
2.67
±
.254
(.105
±
.010)
7743 H
8.18
±
.254
(.322
±
.010)
12.7
±
.254
(.500
±
.010)
3.81
(.150)
16 POSITIONS
(Binary Coded
Hexadecimal)
1
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
X = Connection
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
2
4
8
C
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
.51
±
.127
(.020
±
.005)
59.18
±
2
(2.330
±
.079)
180.0
±
5 DIA.
(7.087
±
.197)
REEL
Meets EIA 481
3.68
±
.254
(.145
±
.010)
TUBE LENGTH - 525MM.
UNITS PACKAGED 100 PIECES PER TUBE.
16.4 + 2.01/ -.000
(.645 + .079/-.000)
Reflow Soldering Profile
275
225
Temperature (°C)
175
125 120
°C
75
30-40 Sec.
25
0
20
40
60
10-15
Sec.
80-90 Sec.
35-60
Sec.
240
°C
180
°C
80 100 120 140 160 180 200
Time (Seconds)
REV. 10/02
Specifications are subject to change without notice.
