FL75R10A Filter Module
75Vdc Input Maximum, 10A Maximum
DATASHEET
DS_FL75L20_ 03042014
FEATURES
ROHS Compl iant
Smal l size : 50.8mm x 40.6mm x 12.7mm
(2.0” x 1.6” x 0.5”)
Industry standard footprint and pin-out
Optimized for use with high frequency
board mounted DC/DC converters
Printed-circuit board mountable
ISO 9001, TL 9000, ISO 14001, QS 9000,
OHSAS 18001 certified manufacturing
facility
UL/cUL 60950 (U S & Canada)
Recognized, VDE 0805 (IEC60950)
Licensed
APPLICATIONS
Common-mode and differential-mode
filt ering of power supply dc input and
output li ne
Computer application
Communications equi pm ent
Delphi Series Filter Module - FL75L20
75Vdc max input, 20A max output current
The Delphi series FL75L20 filter module is the latest offering from a
world leader in power systems technology and manufacturing -- Delta
Electronics, Inc . This filter m odule is des igned t o reduc e the conduc ted
common-mode and differential-mode noise on input or output lines of
high-frequency switching power supplies and has a maximum current
rating of 20A. It has the industry standard footprint and pin-out. With
creative design technology and optimization of component placement,
Delphi FL75L20 filter module possesses outstanding electrical and
thermal performance, as well as extremely high reliability under highly
stressful operating conditions.
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SPECIFICATIONS
GENERAL SPECIFICATION S OUTPUT SPECIFICATIONS
Input voltage, continuous Typical 0~75V Output current Ta=60°C, 2 m/s 20A
Input voltage, transient
Typical
100V
Output current
12A
Operation case temperature
Typical
-40
℃
~ 110
℃
Common-mode Insertion Loss
Ω
28dB
Storage temperature
Typical
-55
℃
~ 125
℃
Differential-mode Insertion Loss
Ω
46dB
Size (2.0”. x 1.6”x 0.5”) 50.8 x 40.6 x 12.7 mm
ELECTRIC AL CHARACTERISTICS CURVES
Figure 1: Ty pical comm on-mode in sertion los s in a 50
Ω
circuit
Figure 2: Typical differential-mode insertion loss in a 50
Ω
circuit
Internal Schemat ics
Figure 3: Internal schem ati cs
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THERMAL CONSIDE RATIONS
Therm al m anagement is an important p art of the system
design. To ensure proper, reliable operation, sufficient
cooling of the power module is needed over the entire
temperature range of the module. Convection cooling is
usually the dominant mode of heat transfer.
Hence, the choice of equipment to characterize the
thermal performance of the power module is a wind
tunnel.
Thermal Testing Setup
Delta’s filter modules are characterized in heated
vertical wind tunnels that simulate the thermal
environments encountered in most electronics
equipment. This type of equipment commonly uses
vertically mounte d cir cuit c ards in c a bi net r acks in whi c h
the power modules are mounted.
The following figure shows the wind tunnel
characterization setup. The filter module is mounted on
a test PWB and is vertically positioned within the wind
tunnel. The space between the neighboring PWB and
the top of the power module is 6.35mm (0.25”).
Thermal Derating
Heat can be removed by increasing airflow over the
module. Figure 4 shows m aximum output is a function of
ambient temperatur e and a i rf low rate. To enhance s yst em
reliability, the power module should always be operated
below the maximum operating temperature. If the
temperature exceeds the maximum module temperature,
reliability of the unit may be affected.
Figure 4: Wind tunnel test setup figure dimensions are
in millimeters and (inches).
OUT
GND
16 mm
(0.63 in)
27 mm
(1.06 in)
Figure 5: Temperature measurement location
The allowed maximum hot spot temperature is defined at 110
℃
FL75L20 (Standard) Output Current vs. Ambient Temperature and Air Velocity
@ Vin = 48V (Either Orientation)
0
5
10
15
20
25
25 35 45 55 65 75 85
Ambient Temperature (℃)
Output Current(A)
Natural
Convection
100LFM
200LFM
300LFM
400LFM
500LFM
600LFM
Figure 6:
Output Current vs. Ambient Temperature and Air
Velocity @ Vin = 48V (Either Orientation)
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APPLICATION
Note: C2 through C5 can be 0.01μF to o.1μF. Select the voltage rating to meet input -to-output isolation requirem ents. C1 should be the recommended
value indicat ed in the power module data sheet.
Figure 7. Recommended schematic when used as the input filter to a high-freq uen cy dc-to-dc converter
Note: Vdc input(+) and Vdc input(-) planes should overlay eac h other, as should the Vi(+) and Vi(-) planes, as should the Vout (+) and Vout(-) planes. Avoid
routing signals or planes under the power module or the filt er module. Ensure all connections are low impedance.
Figure 8. Recommended layout when used as the input filter to a high-frequency dc-to-dc converter
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APPLI CATI ON (Continued)
Note: : C2 through C5 and C6 through C9 can be 0.01μF to o.1μF. Select the voltage rating to meet input-to-
output isolation requirements. C1 should be
the recommended value indicated in the power module datasheet.
Figure 9. Recommended schematic of filter module with two power modules
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Figure 10 shows the experimental result obtained by using this filter module, together with the recommended external
components sho wn in Figures 5 and 6. The Q48SR3R335N R module is one of the Delphi series quarter brick 3.3V, 35A
DCDC converters. Measured noise is greatly dependent on layout, grounding, cable orientation, and load characteristics
and the variation is possible from various application conditions.
Figure 10. Q48S R3R335NR A conducted noise with FL75L20 input filter
MECHANIC AL DRAWING
Top View Side View Bottom View
Pin length L: A=5.0mm; B=3.1mm
Dimensions are in millim eter and (inches ) .
Tolerances : x.xx ± 0.5 mm (0.02 in), x.xxx ± 0.25 mm (0.010 in)
RECOMMENDED HO LE PATTERN
Dimensions are in millim eter and (inches ) .
Tolerances : x.xx ± 0.5 mm (0.02 in), x.xxx ± 0.25 mm (0.010 in)
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PART NUMBERING SYSTEM
FL 75 L 20 A
Product Family Input Voltage Product Series Output Current Space Option Code
FL- EMI Filter 75- 0 ~ 75V L – Industry standard 20 - 20A A – PIN length=5.0mm
B – PIN l ength=3.1mm
MODEL LIST
Module Name
Input Voltage (max.)
Current Rating (max.)
Size (metric)
Size (En g lish unit)
FL75L05 A
75V
5A
25.4 x 25.4 x 10.2 mm
1.0 in. x 1.0 in. x 0.4 in.
FL75L10 A
75V
10A
50.8 x 27.9 x 12.5 mm
2.0 in. x 1.1 in. x 0.5 in.
FL75L20 A
75V
20A
50.8 x 40.6 x 12.7 mm
2.0 in. x 1.6 in. x 0.5 in.
CONTACT: www.deltaww.com/dcdc
USA:
Telephone:
East Coast: 978-656-3993
West Coast: 510-668-5100
Fax: (978) 656 3964
Email: DCDC@delta-corp.com
Europe:
Telephone: +31-20-655-0967
Fax: +31-20-655-0999
Email: DCDC@delta-es.com
Asia & the rest of world:
Telephone: +886 3 4526107
Ext. 6220~6224
Fax: +886 3 4513485
Email: DCDC@delta.com.tw
WARRANTY
Delta o ffer s a tw o (2) y ear limited w arranty. Complete warrant y informat ion is l isted on o ur web sit e or is available u pon re quest fr om Del ta .
Information furnished by Delta is believed to be accurate and reliable. However, no responsibility is assumed by Delta for its use, nor for
any infri nge ments of p at ents or other r ights of thir d p arties, which may res ult f r om it s use . No lice ns e is granted by i mpl ic atio n or oth erwise
under any patent or patent rights of Delta. Delta reserves the right to revise these specifications at any time, without notice.