LA4445

No.1277–3/7

Sample Printed Circuit Pattern

Proper Cares in Mounging Radiator Fin

1. The mounting torque is in the range of 39 to 59N · cm.

2. The distance between screw holes of the radiator fin must coincide with the distance between screw holes of the IC.

With case outline dimensions L and R referred to, the screws must be tightened with the distance between them as

close to each other as possible.

3. The screw to be used must have a head equivalent to the one of truss machine screw or binder machine screw defined

by JIS. Washers must be also used to protect the IC case.

4. No foreign matter such as cutting particles shall exist between heat sink and radiator fin. When applying grease on the

junction surface, it must be applied uniformly on the whole surface.

5. IC lead pins are soldered to the printed circuit board after the radiator fin is mounted on the IC.