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45
Features
EMI filtering-MIL-STD-461E
Transient protection-MIL-STD-704E
Environments-MIL-STD-810, MIL-STD-202
Environmental stress screening
Low profile mounting options
Output current up to 3 Amps
Mini sized package
Inrush current limiting
M-FIAM3
Military 270Vin Filter
Input Attenuator Module
Shown actual size:
2.28 x 2.2 x 0.5 in
57,9 x 55,9 x 12,7 mm
Product Highlights
The M-FIAM3 is a DC front-end module
that provides EMI filtering and transient
protection required in military applications.
The M-FIAM3 enables designers using
Vicor 2nd Generation 300V DC-DC converters
to meet conducted emission/conducted
susceptibility per MIL-STD-461E; and
input transients per MIL-STD-704E. The
M-FIAM3 accepts an input voltage of
180-375Vdc and delivers output current
up to 3 Amps.
M-FIAM3 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.
Absolute Maximum Rating
Parameter
+In to –In
+In to –In
Mounting torque
Pin Soldering temperature
Pin Soldering temperature
Operating temperature H–Grade
Storage temperature H–Grade
Operating temperature M–Grade
Storage temperature M–Grade
Rating
375
400
5 (0.57)
500 (260)
750 (390)
-40 to +100
-55 to +125
-55 to +100
-65 to +125
Unit
Vdc
Vdc
in-lbs
°F (°C)
°F (°C)
°C
°C
°C
°C
Notes
Continuous
100ms
6 each, #4-40 or M3
<5 sec; wave solder
<7 sec; hand solder
Baseplate
Baseplate
Specifications
(typical at TBP = 25ºC, nominal line, 75% load, unless otherwise specified)
Compatible Products
• 2nd Generation 300V Input
DC-DC converters
Part Number Format
M-FIAM3 M 2 1
Product
Product Grade(°C)
H = –40 to +100
M = –55 to +100
Pin Style
1 = Short
2 = Long
*S=Short ModuMate
*N=Long ModuMate
Baseplate
1 = Slotted
2 = Threaded
3 = Thru-hole
Parameter
Min Typ Max
Input voltage
180Vdc 270Vdc 375Vdc
Output current
3A
Inrush limiting
0.018A/µF
Transient immunity
EMI:MIL-STD-461E
Conducted emissions: CE101, CE102
Conducted susceptibility: CS101, CS114, CS115, CS116
Dielectric withstand
1,500Vrms
2,121Vdc
Efficiency
96% 98%
Internal voltage drop
3.0Vdc 5.0Vdc
ON/OFF control
Enable (ON)
0.0Vdc
1.0Vdc
Disable (OFF)
3.5Vdc
5.0Vdc
External capacitance
10µF
22µF
Weight
3.1 (88) 4 (113)
Warranty
2
Remarks
Continuous
Exceeds limits of MIL-STD-704E
Input/Output to base
Input/Output to base
@ 3A, 100°C baseplate
Referenced to –Vout.
100kinternal pull-up resistor
See illustration C1 on page 3.
400V
Ounces (grams)
Years
*Compatible with SurfMate and InMate socketing systems.
Thermal Resistance
MTBF per MIL-HDBK-217F
Parameter
Baseplate to sink; flat, greased surface
Baseplate to sink; thermal pad (P/N 20264)
Baseplate to ambient
Baseplate to sink; 1000 LFM
Typ
0.16°C/Watt
0.1°C/Watt
7.9°C/Watt
2.2°C/Watt
Temp.
25°C
50°C
65°C
Environment
Ground benign:G.B.
Naval sheltered:N.S.
Airborne inhabited cargo:A.I.C.
MTBF
3,505,003
841,200
683,475
Unit
Hrs
Hrs
Hrs
Vicor Corp. Tel: 800-735-6200, 978-470-2900 Fax: 978-475-6715
MFIAM3
Set your site on VICOR at www.vicorpower.com
Rev. 1.5
Page 1 of 4

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Environmental Qualification
Altitude
MIL-STD-810C, Method 500.2, Procedure I & II, 40,000 ft. and
70,000 ft. Operational.
Explosive Atmosphere
MIL-STD-810F, Method 511.4, Procedure I, Operational.
Vibration
MIL-STD-810F, Method 514.5, Procedure I, Category 14, Sine
and Random vibration per Table 514.5C for Helicopter AH-6J
Main Rotor with overall level of 5.6 grams for 4 hours per axis.
MIL-STD-810F, Method 514.5C, General Minimum Integrity
Curve per Figure 514.5C-17 with overall level of 7.7 grams
for 1 hour per axis.
Shock
MIL-STD-810-F, Method 516.5, Procedure I, Functional Shock,40 G's.
MIL-S-901D, Lightweight Hammer Shock, 3 impacts/axis, 1,3,5 ft.
MIL-STD-202F, Method 213B, 60 G's, 9ms half sine.
MIL-STD-202F, Method 213B, 75 G's, 11ms Saw Tooth Shock.
Acceleration
MIL-STD-810F, Method 513.5, Procedure II, table 513.5-II,
Operational, 2-7 G's, 6 directions.
Humidity
MIL-STD-810F, Method 507.4, Procedure I, Cycle I, 240 hrs, 95% RH.
Solder Test
MIL-STD-202F, Method 208, 8 hour aging.
Environmental Stress Screening
Operating Temp.
Storage Temp.
Temp. Cycling:*
Ambient Test
@ 25°C
Power Cycling
Burn-In:
Functional and
Parametric
ATE Tests:
Hi-Pot Test
Visual Inspection:
Test Data
H Grade
-40°C to +100°C
-55°C to +125°C
12 cycles
-65°C to +100°C
Yes
12 hours,
28 cycles
-40°C and
+100°C
Yes
Yes
vicorpower.com
M Grade
-55°C to +100°C
-65°C to +125°C
12 cycles
-65°C to +100°C
Yes
24 hours,
56 cycles
-55°C and
+100°C
Yes
Yes
vicorpower.com
*Temperature cycled with power off, 17°C per minute rate of change.
Conducted Noise
Transient Immunity
Figure 1– M-FIAM3 and Model V300A48M500AL
DC-DC converter operating at 180Vdc, 130W.
Inrush Limiting
Output
Input
Figure 2 – Transient Immunity: M-FIAM3 output response to
an input transient.
Figure 3– Inrush Limiting: Inrush current with 22µF external
capacitance.
Vicor Corp. Tel: 800-735-6200, 978-470-2900 Fax: 978-475-6715
MFIAM3
Set your site on VICOR at www.vicorpower.com
Rev. 1.5
Page 2 of 4

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Transient and Surge Protection
Note: The M-FIAM3 is shown in the on state. To disable,
open the connection between ON/OFF and –Out.
–IN
MOV P/N
03040
+IN
––
ON
EMI OFF
GND
M-FIAM3 NC
NC NC
++
C1
–IN –OUT
PR 2nd Generation
–S
300Vdc Input
SC
PC DC-DC Converters
+S
+IN +OUT
Capacitance (C1)
10µF(min),22µF(max)
Recommended Fuse:
3A Max., F03A Type
Mechanical Diagram
Module Pins
No. Function
Label
1 +In
+
2
No
Connection
NC
3 Ground EMI/GND
4 – In
5 – Out
6 ON/OFF ON/OFF
7
No
Connection
NC
8
No
Connection
NC
9 +Out
+
Slotted (Style 1)
or
Threaded (Style 2)
4-40 UNC-2B (6X)
or
Thru Hole (Style 3)
#30 Drill Thru (6X)
(0.1285)
0.50 ±0.02
12,7 ±0,5
0.23
5,8 (REF)
0.300 ±0.015
7,62 ±0,38
2.20
55,9
1.74
44,2
style 2 & 3
baseplates only
(4X)***
0.12* 0.20**
3,1 5,1
0.01
0.49
12,4
0.300 ±0.015
7,62 ±0,38
12
34
9 876 5
0.400
10,16
0.700
17,78
1.000
25,40
1.400
35,56
1.900
48,26
0.150
3,81
DIA,(2X)
0.080 DIA,(7X)
2,03
0.35
8,8
(2X)
0.65
ALUMINUM
2.28
16,5
1.30
BASEPLATE 57,9 33,0
0.43
10,9
R 0.06 (3X)
1,5
0.54
13,7
(9X)
Pin Style 1&S
(Short Pin)
0.62
15,7 (9X)Pin Style 2&N
(Long Pin)
* Style 1 baseplate only
** Style 2 & 3 baseplates
*** Reserved for Vicor accessories
Not for mounting
PCB Mounting Specifications
2.000
50,80
2.20
55,9
(REF.)
0.10
2,5
0.10
2,5
X
45˚
CHAMFER
FULL R (6X)
0.130 (6X)
3,30
Use a 4-40 Screw (6X)
Torque to:
5 in-lbs
.57 N-m
PCB THICKNESS 0.062 ±0.010
1,57 ±0,25
R 0.06 (4X)
1,5
1.790
45,47
PLATED
THRU HOLE
DIA
0.158
4,01
12
34
1.900*
48.,26
1.584*
40,23
9 87 6 5
INBOARD
SOLDER
MOUNT
PIN STYLE 1&S
(7X) 0.094 ±0.003
2,39 ±0,08
(2X) 0.164 ±0.003
4,16 ±0,08
ONBOARD
SOLDER
MOUNT
PIN STYLE 2&N
0.094 ±0.003
2,39 ±0,08
0.164 ±0.003
4,16 ±0,08
ALL MARKINGS
THIS SURFACE
ALUMINUM
BASEPLATE
PINS STYLES
STYLE 1 & 2: TIN/LEAD
HOT SOLDER DIPPED
STYLE S & N: GOLD PLATED COPPER
0.400*
10,16
0.195
4,95
0.700*
17,78
1.000*
25,40
1.400*
35,56
* DENOTES
TOL = ±0.003
±0,08
0.43
10,9
0.53
13,5
Vicor Corp. Tel: 800-735-6200, 978-470-2900 Fax: 978-475-6715
MFIAM3
Set your site on VICOR at www.vicorpower.com
Rev. 1.5
Page 3 of 4