Tact Switch Soldering
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Before soldering the tact switch on the PCB, please ensure that the soldering can be carried out properly. Otherwise, the switch may be deformed due to the soldering heat on the pattern or lands of the PCB. Do not solder the tact switch more than twice, including rectification soldering. An interval of five minutes is necessary between the first and the second soldering, or it may cause the housing to melt and the operating characteristics to deteriorate.
| Soldering Conditions: | |||
| 1.0 | Hand soldering | Please practice according to below conditions: (1) Soldering temperature:350℃ Max (2) Continuous soldering time:3s Max |
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| 2.0 | Conditions for wave soldering Applied to plug-in switch |
Items | Condition |
| Flux built-up | Mounting surface should not be coated with flax | ||
| Preheating temperature | Ambient temperature of the soldered surface of PC board. 100℃ max |
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| Preheating time | 60s max | ||
| Soldering temperature | 240℃ max | ||
| Continuous dipping time | 5s max | ||
| Number of soldering | 2 times max | ||
| Item | Test Conditions | Requirements | |
| 3.0 | Conditions for reflow soldering Applied to surface mount switch |
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| Cautions: 1、 After switches were soldered,please do not clean switches with solvent. 2、 Safeguards the switch assembly against flux penetration from its solvent. 3、 Please be cautions not to give excessive static load or shock to switches. 4、 Please be careful not to pile up P.W.B.after switches were soldered. 5、 Preservation under high temperature and high humidity or corrosive gas should be avoided Especially. when you need to preserve for a long period,do not open the caron. |
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