The sealed miniature sound transducers by Star should not be exposed to extremely high temperatures for prolonged periods of time. As excessive heat will degrade the sealing performance of the unit, soldering should be conducted as quickly as possible.

Recommended temperature and for soldering

• 250°C ……… within 5 seconds
• 350°C ……… within 1.5 seconds

Dip soldering may be conducted only in the case of washable products. As for non washable products, dip soldering should not be implemented

(1) Washable type transducers.

Along with other electronic components, these trancducers may be washed with cleaning solvents after the soldering process.

(2) Non-washable type transducers.

Subsequent mounting is recommended to avoid to be washed. If it is inevitable to wash a transduser, take necessary measures to prevent washing fluid from entering into the transducer. And it is also required to ensure wellventilation to avoid any undesirable effects by the component substances of the flux that may otherwise remains in the atmosphere.

In view of the recent requirement for total elimination of ozone-depleting chemicals, we have decided to recommend our customers to use deionized water for their cleaning process at the conditions given below, instead of CFC that was conventionally used.

Conditions for cleaning

• Cleaning solvent ……… Deionized water
• Solvent temperature ……… 55 ± 5°C
• immersion time ……… 5 ± 0.5minutes

For further details, feel free to ask us directly or any of our distributors.