
Specifications are subject to change without notice.
367
STJN-4 SMD Super-Thin Tact Switch
Features
I
Super-thin 4.5mm square SMD
I
Two different operating forces
I
0.55mm height without knob
I
Compatible with surface mount reflow
soldering processes
Applications
I
Camcorders
I
Audio equipment
I
Electronic toys
I
Cellular phones, pagers
Electrical Characteristics
Max. Power Rating..12VDC max., 20mA
Contact Resistance
...............................100 milliohms max.
Insulation Resistance
................50 megohms min., 100 VDC
Dielectric Strength
............................AC 100V for 1 minute
Bounce
On..........................................3ms max.
Off........................................10ms max.
Circuit ....................................N.O. SPST
Mechanical Characteristics
Mechanical Life.........50,000 cycles min.
Actuation Force
......................160gf ±50gf (1.6N ±0.5N)
.....................240gf ±60gf (2.4N ± 0.6N)
Stroke ............................0.2mm ±0.1mm
General Characteristics
Switch Type.........................(N.O.) SPST
Operating Temperature Range
......................................-20°C to +70°C
Storage Temperature Range
......................................-40°C to +85°C
Product Dimensions
Reflow Soldering Profile
Recommended PCB Layout
Circuit Diagram
2
4
1
3
0.6
(.024)
2.8
(.110)
4.3
(.169)
4.50 + 0.25 / - 0.15
(.177 + .010 / - 0.06)
4.3
(.169)
2.6
(.102)
4.5
(.177)
0.35
(.014)
0.45 + 0.15 / -0.10
(.018 + .006 / - .004)
0.55 + 0.15 / - 0.10
(.022 + .006 / - .004)
3.7
(.146)
1
2
3
4
3.0
(.118)
4.8
(.189)
2.85
(.112)
4.85
(.191)
1
2
3
4
T
Max. 240°C
30-40
sec.
150°C
120°C
Room Temp.
60-90
sec.
TIME
10-15
sec.
SOLDERING PROCESS
Hand Soldering
Soldering iron of 30W or less,
controlled at 320°C for approx. 2
seconds while applying solder.
Reflow Soldering
Peak temperature or reflow oven
should be set to 240°C max.
How to Order
STJ N - 4 05 - N TR
Model
Thin SMD Tact Switch
Product Code
N = Non-washable
Size
4 = 4.5mm
Height
05 = 0.55mm (without knob)
Actuating Force
N = 160gf (1.6N)
P = 240gf (2.4N)
Packaging
TR =Embossed Tape
10,000 pcs./reel