7644

Features
Applications
5 position selector switch
Miniature industrial switch multi-position
Vertical adjust
Rugged surface mount design
Break-before make timing
■
■
■
■
■
Signal/circuit select
Filter select
■ Test equipment
■ TV, radio
■
■
7644 SMD 4 mm Square Sealed Selector Switch
Electrical Characteristics
Contact Rating
Maximum Current ...........100 mA max.
Maximum Voltage .........................16 V
Contact Resistance
..............................100 milliohms max.
Insulation Resistance .......100 megohms
Dielectric Strength ....................250 volts
General Characteristics
Operating Temperature Range
................................-55 °C to +125 °C
Storage Temperature Range
................................-55 °C to +125 °C
Seal Test .......................85 °C Fluorinert*
Mechanical Characteristics
Switch Type....................................SP4T
Adjustment Detent Torque
....................................... 0.2-0.7 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
Actuation Life .......................1,000 steps
Maximum Soldering Heat ...........245 °C,
5 seconds
Standard Packaging
Tube .................................50 pcs./tube
Tape & Reel .....................500 pcs./reel
Product Dimensions
7644J
4
C
7644G
2.55
(.100)
4.80
(.189)
0.20
(.007)
TYP
1
0.05 ± 0.05
(.001 ± .001)
TYP
4.80
4.50
(.177) (.189)
3
2
2.55
(.100)
4.80
(.189)
4 C 1
2
5° MAX TYP.
0.20 TYP.
(.007)
2.54
(.100)
RECOMMENDED PCB LAYOUT
1.27
(.050)
0.41 TYP
(.016)
C
1
4
2.54
(.100)
2.00
(.078)
2.54
(.100)
4
1.50
(.059)
TYP
2
4.80
(.189)
C 1
0.20
(.007)
4.50
(.177)
4.80
(.189)
6.20 ± 1.00
(.244 ± .039)
5.00 +0.10/ -0.15
(.197 +.003/ -.005)
7644 J - 1 - 005 E
3
2
2.54
(.100)
Switch Type
1 = SP4T
Number of Positions
005 = 5 Positions
(“0” Position is Off; No Contact)
1.27
(.050)
0.41 TYP
(.016)
C
1
4.00
(.157)
2.55
(.100)
Model
RECOMMENDED PCB LAYOUT
2.54
(.100)
4
Embossed Tape Designator
(Omit letter for Tube)
1.27
(.050)
5.00
(.197)
0FF
4
1
3
2
SCHEMATIC
TOLERANCES: ±.38 EXCEPT WHERE NOTED.
MM
DIMENSIONS:
(IN)
Specifications are subject to change without notice.
2
3
2.54
(.100)
2.70
(.106)
1.31 TYP
(.051)
3
7644H
4
RECOMMENDED PCB LAYOUT
1.27
(.050)
5.40
(.212)
1.50 TYP
(.059)
3
0.41 TYP
(.016)
C
4.00
(.157)
1.00 TYP
(.039)
2
1.27
(.050)
1.27
(.050)
1
How to Order
Terminal
0.8
(.031) 6.20
TYP. (.244)
4.80
4.50
(.177) (.189)
3
0.05 ± 0.05
(.001 ± .001)
TYP
0.50 TYP
(.020)
0.71
(.028)
TYP
7644 SMD 4 mm Square Sealed Selector Switch
Reflow Soldering Profile
Packaging Specifications
275
7644 H Tube
.36 MAX.
(.014)
2.74 ± .10
(.108 ± .004)
R
13º ± 2º 2 PLCS REF
5.52 ± 0.5
(.217 ± .020)
R
.762
MAX. TYP.
(.030)
5.66 ± .254
(.223 ± .010)
4.24
(.167)
1.5 + .10/ –.00 DIA.
(.059 + .004.–.00)
5.26 ± .10
(.207 ± .004)
4.00 ± .10
(.157 ± .004)
2.00 ± .05
(.079 ± .002)
8.64 ± .254
(.340 ± .010)
2.82
(.111)
5.26 ± .10
(.207 ± .004)
.508 TYP.
(.020)
1.78
(.070)
2.54
(.100)
240 °C
225
.508
TYP.
(.020)
Temperature (°C)
7644 J & G
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)
8.89 ± .254
(.350 ± .010)
8.00 ± .20
(.315 ± .007)
1.75 ± .10
(.069 ± .004)
12.00 ± .30
(.472 ± .012)
TAPE
1.78 ± .254
(.070 ± .010) EQUAL SPACED 3 PLCS.
21.01 ± .787
(.827 ± .031) DIA.
2.67 ± .254
(.105 ± .010)
13.0 ± .508
(.512 ± .020) DIA.
59.18 ± 2
(2.330 ± .079)
180.0 ± 5 DIA.
(7.087 ± .197)
REEL
16.4 + 2.01/ -.000
(.645 + .079/-.000)
Meets EIA 481
REV. 10/02
Specifications are subject to change without notice.
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