7744

Features
■
■
■
■
■
Applications
8 or 10 position coded switch
Miniature industrial switch multi-position
Vertical adjust
Rugged surface mount design
Rugged lead frame construction
■
■
■
Board address
Instrumentation
Test equipment
7744 SMD 4 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*
Product Dimensions
7744J-8
How to Order
1 C 2
2.55
(.100)
TYP 6.20
(.244)
5.00
4.50
(.177) (.197)
1.27
(.050)
2.54
0.41 TYP (.10)
(.016)
C
0.20 TYP
(.008)
2.54
(.10)
1.27
(.050)
1.27
(.050)
0.41 TYP
(.016)
2.00
(.079)
1
1.50 TYP
(.059)
N/C
C
2
1.00 TYP
(.039)
4
5° MAX TYP.
4
N/C
RECOMMENDED PCB LAYOUT
2.54
(.10)
2.55
(.100)
2.54
(.10)
0.20 TYP
(.008)
0.05 ± 0.05
(.002 ± .002)
TYP
2.70
1.31 TYP
(.051)
N/C
0.71 TYP
(.028)
2.55
(.100)
5.00
(.197)
0.05 ± 0.05
(.002 ± .002)
1 C 2
2.55
(.100)
TYP 6.20
(.244)
4
5.00
4.50
(.177) (.197)
RECOMMENDED PCB LAYOUT
1.27
(.050)
TYP 2.54
(.10)
0.41
(.016)
C
2
5° MAX TYP.
8
1.27
(.050)
1.00 TYP
(.039)
8
1.50 TYP
(.059)
1.27
(.050)
0.41 TYP
(.016)
1
4.00
(.157)
RECOMMENDED PCB LAYOUT
2.54
(.10)
C
2
0.71 TYP
(.028)
0.20 TYP
(.008)
4
2.54
(.10)
2.00
(.079)
1
4
5.40
(.216)
7744G-10
4.50 4.80
(.177) (.189)
2.54
(.10)
1.27
(.050)
4.00
(.157)
0.71 TYP
(.028)
4
4.80
(.189)
1 C 2
RECOMMENDED PCB LAYOUT
1
7744J-10
8
0.05 ± 0.05
(.002 ± .002)
4
N/C
2
2.55
(.100)
5.00
(.197)
0.20 TYP
(.008)
0.05 ± 0.05
(.002 ± .002)
TYP
4.50 4.80
(.177) (.189)
Mechanical Characteristics
Positions ......................................8 or 10
Adjustment Detent Torque
....................................... 0.1-2.5 N-cm
Environmental Characteristics
Shock ............................................100 G
...................0.1 ms. max. discontinuity
Vibration ..........................................20 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 .....................500 pcs./reel
7744G-8
2.55
(.100)
4.80
(.189)
1 C 2
1.27
(.050)
2.70
7744 J - 1 - 008 E
Model
4
Terminal
Switch Type
1 = Standard
Number of Positions
008 = Binary coded octal
010 = Binary coded decimal
Embossed Tape Option
(Omit letter for tube)
Specifications are subject to change without notice.
TOLERANCES: ±.2 EXCEPT WHERE NOTED.
MM
DIMENSIONS:
(IN)
"OFF" POSITION IS COMMON.
8
1.31 TYP
(.051)
0.71 TYP
(.028)
5.40
(.216)
7744 SMD 4 mm Square Sealed Coded Switch
Product Dimensions
Packaging Specifications
7744H-8
2.54
(.10)
1.27
(.050)
5.00
(.197)
C
2
1 C 2
0.41
(.016)
TYP
1
5.00
4.50
(.177) (.197)
N/C
4
2.55
(.100)
7744J&G
7744H
.40 MAX.
(.016)
3.60 ± .10
(.141 ± .004)
RECOMMENDED PCB LAYOUT
1.27
(.050)
2.54
(.10)
5.00
(.197)
2.54
(.10)
1.27
(.050)
5.00
(.197)
1 C 2
10 POSITIONS
(Binary Coded
Decimal)
1
16.00 ± .30
(.630 ± .012)
0
1
2
3
4
5
6
7
8
9
TAPE
13.0 ± .508
(.512 ± .020) DIA.
0.41
(.016)
TYP
1
C
2
TUBE LENGTH - 525MM.
UNITS PACKAGED 100 PIECES PER TUBE.
Binary (REAL) Code
0.79 ± 0.05
TYP
(.031 ± .002)
7744H-10
1.78 ± .254
(.070 ± .010) EQUAL SPACED 3 PLCS.
21.01 ± .787
(.827 ± .031) DIA.
2.67 ± .254
(.105 ± .010)
59.18 ± 2
(2.330 ± .079
8
RECOMMENDED PCB LAYOUT
1.27
(.050)
2.54
(.10)
16.4 + 2.01/ -.000
(.645 + .079/-.000)
REEL
Meets EIA 481
2.82
(.111)
.510
TYP
(.020)
4.70
(.185)
0.38 ± 0.10
(.015 ± .004)
6.20 +0.20/ -0.31
(.244 +.008/ -.012)
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
C
X
X
X
X
X
X
X
X
X
X
1
0
1
2
3
4
5
6
7
2
4
X
X
X
X
X
X
X
X
X
X
X
X
C
X
X
X
X
X
X
X
X
240 °C
225
180.0 ± 5 DIA.
(7.087 ± .197)
R .510 TYP
(.020)
0.20
(.007)
8
275
5.00
(.197)
0.79 ± 0.05
TYP
(.031 ± .002)
Temperature (°C)
4
2.55
(.100)
4
Reflow Soldering Profile
4
4.00
(.157)
2
8 POSITIONS
(Binary Coded
Octal)
X = CONNECTION
5.00
4.50
(.177) (.197)
8
3.30 ± .254
(.130 ± .010)
7.40 ± .10
(.291 ± .004)
2.00 ± .05
(.079 ± .002)
1.75 ± .10
(.069 ± .004)
0.38 ± 0.10
(.015 ± .004)
6.20 +0.20/ -0.31
(.244 +.008/ -.012)
.51 ± .127
(.020 ± .005)
7.60 ± .10
(.299 ± .004)
12.00 ± .20
(.472 ± .007)
0.20
(.007)
4.24
(.167)
7.50 ± 0.5
(.295 ± .020)
4.00 ± .10
(.157 ± .004)
N/C
9.65 ± .254
(.322 ± .010)
6.60 ± .254
(.260 ± .010)
1.5 + .10/ –.00 DIA.
(.059 + .004.–.00)
4
4.00
(.157)
Packaging Specifications
180 °C
175
10-15
Sec.
80-90 Sec.
125 120 °C
75
30-40 Sec.
25
0
20
40
60
35-60
Sec.
80 100 120 140 160 180 200
Time (Seconds)
2.82 2 PLCS
(.111)
60º± 2º
7.67
(.302)
R .762 MAX 2 PLCS
(.030)
REV. 10/02
Specifications are subject to change without notice.
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