TM
TACT Switch
Soldering Conditions
Condition for Reflow
Available for Surface Mount Type.
1. Heating method: Double heating method with infrared heater.
2. Temperature measurement: Thermocouple 0.1 to 0.2φ CA（K）or CC（T）at solder joint（s copper foil surface）. A heat resistive tape
Detector
Push
should be used to fix thermocouple.
3. Temperature profile
Temperature (˚C )
Slide
260˚C max. 3 sec max.
Rotary
Encoders
Power
230˚C
180
150
Time
Dual-in-line
Package Type
120 secm ax.（pre-heating ）
40s max.
TACT SwitchTM
3 to 4min.
Custom-
Products
Time inside soldering equipment
Note
1. The above temperature shall be measured on the mounting surface of a PC board. There are cases where the PC
board's temperature greatly differs from that of the switch, depending on the material, size, thickness of PC boards
and others. The above-stated conditions shall also apply to switch surface temperatures.
2. Soldering conditions differ depending on reflow soldering machines. Prior verification of soldering condition is
highly recommended.
Sharp
Feeling
Conditions for Auto-dip
Manual Soldering Except SKRT Series）
（
Soft
Feeling
Available for Snap-in Type and Radial Type
Items
Condition
（Except SKHJ, SKHL, SKQJ, SKQK, SKEG series）
Snap-in
Type
Soldering temperature
Duration of soldering
350℃max.
3s max.
Items
Flux built-up
Condition
Surface
Mount Type
Mounting surface
should not be exposed to fluk
Capacity of soldering iron
60W max.
Radial
Type
Ambient temperature of the soldered
surface of PC board.
Preheating temperature
100℃max.
Preheating time
60s max.
Soldering temperature
Duration of immersion
Number of soldering
260℃max.
5s max.
2times max.
Notes
1. Consult with us for availability of TACT SwitchTM washing.
2. Prevent flux penetration from the top side of the TACT SwitchTM.
3. Switch terminals and a PC board should not be coated with flux prior to soldering.
4. The second soldering should be done after the switch is stable with normal temperature.
5. Use the flux with a specific gravity of min 0.81.
（EC-19S-8 by TAMURA Corporation, or equivalents.）
306
ALPS [ ALPS ELECTRIC CO.,LTD. ]
