Pin No. Pin name
Pin 3 is removed.
(Internally connected with pin 2.)
(Internally connected with pin 1.)
(Internally connected with pin 5.)
(Internally connected with pin 4.)
Be sure to use
fuse for safety
Use a low-impedance product for switching power supplies for the I/O capacitor.
(1) The output current needs to be reduced as the ambient temperature rises.(Please refer to the derating
(2) Lead pins should be securely connected. If lead pins are not securely connected, irregular voltages could
be produced, causing breakdowns and damage.
(3) Please I/O external capacitors as near as possible to the connection pins. Output ripple voltage might be
(4) Be minded to use external parts within the specified range. In case that the parts with other than the
specified range, it will not only result in dissatisfactory fulfillment of the specifications but may also cause
(5) Watch out for chattering when the power is turned on. If chattering when the power is turned on, do not
use exceeding the maximum input voltage.
(6) In the case of loads such as motors or relays, take measures so that over voltage is not applied to the
module input / output terminals due to counter-electromotive force when turning power on / off, and
current does not exceed absolute maximum rating.
(7) Make sure that the absolute maximum rated value is not exceeded when locking, reversely rotating, or
starting the motor.
When the insulation between the terminals is deteriorated due to condensation, normal activation may
sometime be hindered. Please be careful with the condensation especially between the external coils,
and between the input terminals.
(9) Operating temperature
Be sure to use within the derating curve. Particularly, in case that this product is used in the closed vessel,
be sure to measure the temperature, and make sure that it is within the derating curve.
(10) Do not attempt to apply static electricity at the time of installation or storage. It may cause breakage.
(11) The over output voltage should not be applied to the output terminal.
(12) Since there may be a case that the output voltage cannot be increased if the reverse voltage is applied
to the output terminal, make sure that the reverse voltage should not be applied when supplying the
(13) In case that vibration is significant, be minded to use this product after fixing it.