4
TDK-Lambda
PFE700SA Series
INSTRUCTION MANUAL
F1 : External Input Fuse
PFE700SA Series has no internal fuse. Use external fuse to acquire each Safety Standard and to further
improve safety. PFE700SA Series acquired safety standard certification using 15A, 250V, Fast-Blow
external fuse. Further, Fast-Blow type fuse must be used per one module. Also, in-rush surge current flows
during line throw-in. Be sure to check I
2
t rating of external switch and external fuse.
Recommended External Fuse
：
15A , 250V
Note)
Select fuse based on rated voltage, rated current and surge current capability.
(1) Voltage Ratings
100VAC line : AC125V
200VAC line : AC250V
(2) Current Ratings
Rated current is determined by the maximum input current based on operating conditions and can be
calculated by the following formula.
(Arms)
PF
η
Vin
Pout
(max)
Iin
´
´
=
(Formula 5-1)
Iin (max) : Maximum Input Current
Pout
: Maximum Output Power
Vin : Minimum Input Voltage
η
: Efficiency
PF
: Power Factor
For Efficiency and Power Factor values, refer to separate document “PFE700SA Evaluation Data”
.
C1, C4, C5 : 1uF (Film Capacitor)
Ripple current flows through this capacitor. When selecting capacitor, be sure to check the allowable
maximum ripple current rating of this capacitor. Verify the actual ripple current flowing through this
capacitor by doing actual measurement.
Connect C5 as close as possible towards the input terminals AC(N) and AC(L) of this power module.
Recommended Voltage Rating : 250VAC
L1, L2 : 6mH
Add common mode choke coil as EMI/EMS countermeasure. When using multiple modules, connect coil to
each module.
Note)
Depending on the input filter used, noise might increase or power module might malfunction due to
filter resonance.
C2, C3 : 4700pF(Ceramic Capacitor)
Add ceramic capacitor as EMI/EMS countermeasure. Be sure to consider leakage current of your equipment
when adding this capacitor.
High withstand voltage are applied across this capacitor depending on the application. Select capacitor with
high withstand voltage rating.