PRELIMINARY
Data Sheet
TM
45
FIAM
Filter Input Attenuator Module
Features
• EMI filtering-Class B
• Transient protection
• Low profile mounting options
• 10 and 20 Ampere versions
• UL, CSA, EN compliance
• Mini-size package
Shown actual size:
2.28 x 2.2 x 0.5 in
• Inrush current limiting
57,9 x 55,9 x 12,7 mm
Product Highlights
The FIAM is a DC front-end module
providing transient protection, inrush current
limiting and Class B EMI filtering in a Mini-
size package. The FIAM enables designers
using Vicor 2nd Generation, 48Vin DC-DC
converters to meet the transient immunity
and EMI requirements of Bellcore, FCC,
ETSI and European Norms while protecting
system hardware from inrush current. The
FIAM accepts an input voltage of 36-76Vdc,
is available in 10 or 20A versions and
provides reverse polarity protection and
remote on/off.
Absolute Maximum Rating
Parameter
+In to –In
Rating
80
Unit
Vdc
V
Vdc
in-lbs
°F(°C)
°F(°C)
°C
Notes
Continuous
100ms
Continuous
6 each, #4-40 or M3
<5 sec; wave solder
<7 sec; hand solder
+In to –In
+Out to –Out
100
75
Mounting torque
5(0.57)
500 (260)
750 (390)
-40 to +125
-20 to +100
-40 to +100
Pin Soldering temperature
Pin Soldering temperature
Storage temperature C–, T–Grade
Operating temperature C–Grade
Operating temperature T–Grade
°C
°C
Baseplate
Baseplate
FIAM is housed in an industry standard "half
brick" module measuring 2.28" x 2.2" x 0.5"
and depending upon model selected, may be
mounted on-board or in-board for height
critical applications.
Specifications
(typical at TBP = 25C, nominal line, 75% load, unless otherwise specified)
Parameter
Input voltage
Min
Typ
Max
Remarks
36Vdc
48Vdc
76Vdc
Continuous
Output current
FIAM1xxx
FIAM2xxx
10A
20A
Compatible Products
• 2nd Generation 48V Input
DC-DC converters
Inrush limiting
.014A/µF
Transient immunity
Bellcore TR-NWT-000499
ETS 300 386-1 Class 2
1µsec duration
5.0µsec rise time, 50µsec duration surge
1-100nsec burst
200V
200V
250V
Part Number Format
EMI
When used with Vicor 2nd Generation
48Vin DC-DC converters
Bellcore GR-001089-Core
EN 55022
FCC Part 15
Issue 2
Level B
Level B
1,500Vrms
2,121Vdc
97.5
FIAM 1 C 1 1
Pin Style
Product
1 = Short
2 = Long
Dielectric withstand
Input/Output to Base
Input/Output to Base
Internal voltage drop is 1.4 max.
@ 20A, 100°C baseplate
No damage to module,
external fuse required
Efficiency
96
Type
1 = 10A
2 = 20A
Product Grade
C = –20 to +100
T = –40 to +100
Baseplate
1 = Slotted
2 = Threaded
3 = Thru-hole
Reverse polarity protection
ON/OFF control
Enable (ON)
Disable (OFF)
External capacitance
FIAM1xxx
0.0Vdc
3.5Vdc
1.0Vdc
5.0Vdc
Referenced to –Vout.
100kΩ internal pull-up resistor
See illustration on page 2.
100V
Thermal Resistance
Parameter
Baseplate to sink; flat, greased surface
Typ
0.16°C/Watt
10µF
100µF
150µF
330µF
FIAM2xxx
100V
Baseplate to sink; thermal pad (P/N 20264) 0.1°C/Watt
Safety approvals
Weight
Warranty
UL 1950, CSA 22.2-950, EN 60950
Baseplate to ambient
7.9°C/Watt
2.2°C/Watt
3.1 (88)
4 (113)
2
ounces (grams)
years
Baseplate to sink; 1000 LFM
Vicor Corp. Tel: 800-735-6200, 978-470-2900 Fax: 978-475-6715
FIAM, Filter Input Attenuator Module
Rev. 1.1
Page 1 of 4
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