・ Before touching a MOSFET terminal, Discharge any static electricity from your body and clothes by
grounding out through a high impedance resistor (about 1M)
・ When soldering, in order to protect the MOSFETs from static electricity, ground the soldering iron or
soldering bath through a low impedance resistor.
・ You must design the MOSFETs to be operated within the specified maximum ratings(voltage, current,
temperature, etc.) to prevent possible failure or destruction of devices.
・ Consider the possible temperature rise not only for the channel and case, but also for the outer leads.
・ Do not directly touch the leads or package of the MOSFETs while power is supplied or during operation in
order to avoid electric shock and burns.
・ The MOSFETs are made of incombustible material. However, if a MOSFET fails, it may emit smoke or
flame. Also, operating the MOSFETs near any flammable place or material may cause the MOSFETs to
emit smoke or flame in case the MOSFETs become even hotter during operation. Design the arrangement
to prevent the spread of fire.
・ The MOSFETs should not used in an environment in the presence of acid, organic matter, or corrosive
gas(hydrogen sulfide, sulfurous acid gas etc.)
・ The MOSFETs should not used in an irradiated environment since they are not radiation-proof.
Installation
・ Soldering involves temperatures which exceed the device storage temperature rating. To avoid device
damage and to ensure reliability, observe the following guidelines from the quality assurance standard.
Solder temperature and duration (through-hole package)
Solder temperature
2605 C
35010 C
Duration
101 seconds
3.50.5 seconds
・ The immersion depth of the lead should basically be up to the lead stopper and the distance should be a
maximum of 1.5mm from the device.
・ When flow-soldering, be careful to avoid immersing the package in the solder bath.
・ Refer to the following torque reference when mounting the device on a heat sink. Excess torque applied to
the mounting screw causes damage to the device and weak torque will increase the thermal resistance,
both of which conditions may destroy the device.
Table 1: Recommended tightening torques.
Package style
TO-220
TO-220F
TO-3P
TO-3PF
TO-247
TO-3PL
Screw
M3
M3
M3
Tightening torques
30 –50 Ncm
40 –60 Ncm
60 –80 Ncm
Note
flatness : < =±30m
roughness : <=10m
Plane off the edges :
C<=1.0mm
Fuji Electric Device Technology Co.,Ltd.
MS5F5984 10 / 18
H04-004-03