®
®
INNOVATION and EXCELLENCE
Filter Modules
FLT Models
100Vdc, 10 Amp and 20 Amp
Differential/Common-Mode Filters
Features
■
Compatible with most modern switching
DC/DC converters
■
Provides both common-mode and
differential-mode filtering
■
Facilitates compliance with all conductedemissions specifications
■
Small size; PCB mountable
■
–40 to +100°C (case) operation
■
UL94V-0 rated package material
■
UL approved
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Lucent FLTR100V10/20 compatible
Although agency-imposed conducted-emissions standards are targeted for
system-level designs, designers often apply these standards at the component level
to ensure system-level compliance. For those DC/DC converters that do not meet
these standards, DATEL offers the FLT-100V Series EMI filters. When used with the
recommended external capacitors, this family of filters significantly reduces both the
common-mode and differential emissions injected back to the power source.
These rugged filters are packaged in non-conductive, UL94V-0 rated, 1" x 2" x
0.5" (FLT-100V10) and 1.6" x 2" x 0.5" (FLT-100V20) packages. Components and
the pcb are coated with a humidity-sealing conformal coating and then encapsulated
with a thermally conductive potting compound providing outstanding moisture/vibration resistance. Both filters are rated for 100Vdc differential input voltage and are
internally bypassed with a telecom/datacom preferred mylar, self-healing, 100Vdc
rated capacitor. Input-to-GND and Output-to-GND isolation voltages are guaranteed
at 1500Vdc. Inductor copper losses and pcb trace losses are minimized to attain a
low Input-to-Output per leg resistance of 9.5mΩ for FLT-100V10 and 4.8mΩ for FLT100V20 when measured at +25°C. Both Filters are fully characterized to 20MHz for
both common-mode and differential-mode dynamic insertion losses. The FLT-100V
series EMI filters are UL approved.
+INPUT
+OUTPUT
–INPUT
–OUTPUT
GROUND
Model FLT-100V10
+INPUT
+OUTPUT
+INPUT
+OUTPUT
–INPUT
–OUTPUT
–OUTPUT
–INPUT
GROUND
Model FLT-100V20
Figure 1. Simplified Schematics
DATEL, Inc., Mansfield, MA 02048 (USA) · Tel: (508)339-3000, (800)233-2765 Fax: (508)339-6356 · Email: sales@datel.com · Internet: www.datel.com
