P o w e r Bl o ck Mi cro-Miniature M odular Switc hing P ower S upplies
MECHANICAL SpECIFICATIONS
ACL
pwb
SIDE VIEW
series
1.00 (25.40)
.80 (20.32)
.10 (2.54)
BOTTOM VIEW
Dim. “H”
-Vout
ACN
1.80 (45.72)
2.00 (50.80)
+Vout
.20 (5.08) MIN.
.040 (1.016) DIA.
.40 (10.16)
.10 (2.54)
NOTES:
Dimension “H”
0.6 (15.24) for 5Watt/PWB Version
0.9 (22.86) for 10Watt/AFC Version
DIMENSIONS ARE IN INCH (mm)
TOLERANCES: .XXX +/-.02(.508)
.XX +/-.05(1.27)
pOwER bLOCk AppLICATION NOTES
Output Noise
EMI
The figure below ia a sample diagram to reduce Output Ripple
and Noise.
The figure below ia a suggested diagram to reduce
Electromagnetic Interference (EMI).
C1 = Electrolytic Capacitor
Capacitance = 22uF - 220uF
Voltage = Two times rated output voltage
L1 = 3uH - 10uH
C2 = Electrolytic Capacitor
Capacitance = 22uF - 47uF
Voltage = Two times rated output voltage
C3 = Ceramic Capacitor
Capacitance = 0.01uF - 0.1uF
Voltage = 50 volt
Notes:
1. The use of C1 alone may reduce noise to desired levels,
if not use L1, C2 and C3 in addition to C1.
2. The figure above is a suggested circuit. Only by trying true
application can levels be tested.
C1 = 0.22uF X Capacitor
L1 = 10mH - 30mH Common Mode, Choke
C2, C3 = 220pF Y Capacitors
Notes:
The diagram above is a recommended circuit, only by trying
true application can levels be measured.
Inrush Current
If desired, the use of a Choke, NTC or Inrush Current Limiter
may be used to reduce the Inrush Current
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