| 摘要 |
PURPOSE:To stably secrue a transformer to a printed board by forming a recess stepwise portion on the periphery of a pin terminal inserting hole of the surface to be contacted at an insulation protecting case made of a molding with the board. CONSTITUTION:A coil 2 is wound on a bobbin 1, leads 6 are soldered to a pin teminal 3, a core 4 is associated in the bobbin 1, and an insulation protecting case 4 is associated in the bobbin 1, and an insulation protecting case 11 provided with a recess stepwise portion 12 is mounted on the periphery of the inserting hole of the terminal 3. Eyelet holes 10 are engaged in the portion 12 of the case 11 at mounting time, the case 10 is closely engaged with a printed board 9 to increase stably the strength. |
