10 Watt WD Dual Series DC/DC Converters
2401 Stanwell Drive Concord, California 94520 Ph: 925/687-4411 or 800/542-3355 Fax: 925/687-3333 www.calex.com Email: sales@calex.com
3
3/2001
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Mechanical tolerances unless otherwise noted:
X.XX dimensions: ±0.020 inches
X.XXX dimensions: ±0.005 inches
BOTTOM VIEW
SIDE VIEW
Applying The Input
Figure 1 shows the recommended input connections for the
WD Dual DC/DC converter. A fuse is recommended to protect
the input circuit and should not be omitted. The fuse serves to
prevent unlimited current from flowing in the case of a
catastrophic system failure.
Figure 1.
If the source impedance driving the WD Converter is more than
about 0.3 ohms at 120 kHz the optional capacitor C1 may be
required (See text for more information). Optional transient protec-
tor diodes may be used if desired for added input and output
protection. The output can be used as a 10, 24 or 30 V single output
as shown.
Applications Information
You truly get what you pay for in a CALEX converter, a
complete system oriented and specified DC/DC converter -
no surprises, no external noise reduction circuits needed, no
heatsinking problems, just
“
plug and play
”
.
The WD Dual series like all CALEX converters carries the
full 5 year CALEX no hassle warranty. We can offer a five year
warranty where others can
’
t because with CALEX it
’
s rarely
needed.
Keep reading, you
’
ll find out why.
General Information
The universal 18 to 72 volt input allows you to specify your
system for operation from any 24 or 48 volt nominal input.
Five sided shielding is standard along with specified
operation over the full industrial temperature range of -40 to
+85
°
C case temperature.
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