PD - 94598A
AFM704A SERIES
EMI FILTER / PROTECTION HYBRID
Description
The AFM704A is a combined EMI filter and protection
module intended to be used with AHE, ATO, ATR, ATW,
AHF, ASA, and AHV DC/DC converters to allow full
compliance with the surge requirements of MIL-STD-
704A.This device will reduce reflected ripple current to
levels below the CEO3 limits and protect against
voltage spikes required by CS06 testing as specified
by MIL-STD-461. Four levels of military screening are
available, including fully compliant (per MIL-PRF-
38534) devices. Standard Military Drawings (SMDs)
available.
AFM
Features
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40 watts throughout
40 dB Noise Reduction@100 KHz
-55°C to +125°C Operation
Full Military Screening
All Ceramic Capacitor Design
Output Voltage Regulate to 50 Volts Maximum
Inrush Current Limiting
Under Voltage Lockout
AFM704A Block Diagram
1
Series Protection
Snubber
Charge
Pump
CONTROLLER
UV Lockout
OV Clamp
Oscillator
2
3
6
5
4
Refer to last page for Pin Designation
www.irf.com
1
03/07/06
AFM704A Series
Specifications
Tcase = -55°C to +125°C, Vin = +28VDC Unless otherwise specified
Parameter
Input Voltage
Condition
Continuous
No load
40 watt
Transient
100 ms, Rs*= 0 Ohms
60 ms, Rs*= 0.5 Ohms
20
µs,
Rs*= 50 Ohms
No load
Inhibited
Open circuit
Vin = 0 to 0.8V
Vin = 16 to 40V
Continuous
Peak
Vin = 16 to 40V
Tc = 25°C
40
40W load, 80V
100V
40W load, 600V
50 ohm source
40W load, 400V
0.5 ohm source
100 KHz
200 KHz – 50 MHz
Pin to case
Pin to case 500VDC
Min
0
16
Typ
28
28
Max
40
40
80
100
600
15
5.0
2.0
5.2
-300
40
15
200
0.45
50
100
80
20
20
40
50
100
75
60
10,000
Unit
VDC
VDC
VDC
VDC
VDC
VDC
mA
mA
VDC
µA
watts
watts
watts
Ohms
VDC
ms
ms
µs
µs
dB
dB
pf
MΩ
grams
Undervoltage Lockout
Input Current
Inhibit Pin Voltage
Inhibit Pin Current
Output Power
Power Dissipation
DC Resistance
Output Clamp Voltage
Input Surge Limit
Input Spike Limit
13
4.0
Noise Reduction
Capacitance
Isolation
Weight
*
Rs = Source Impedance
Available Screening Levels and Process Variations for AFM704A Series
Requirement
Temperature Range
Element Evaluation
Internal Visual
Temperature Cycle
Constant Acceleration
Burn-in
Final Electrical
(Group A)
Seal, Fine & Gross
External Visual
2017
1010
2001
1015
MIL-PRF-38534
& Specification
1014
2009
Cond A
Cond A, C
Yes
Cond A, C
Yes
Cond A, C
Yes
48hrs@ 85°C
25°C
MIL-STD-883
Method
No
Suffix
-20 to +85°C
ES
Suffix
-55°C to +125°C
HB
Suffix
-55°C to +125°C
CH
Suffix
-55°C to +125°C
MIL-PRF-38534
Yes
Cond B
500g
48hrs@ 125°C
25°C
Yes
Cond C
Cond A
160hrs @ 125°C
-55, +25, +125°C
Yes
Cond C
Cond A
160hrs @ 125°C
-55, +25, +125°C
*
Per Commercial Standards
2
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AFM704A Series
AFM704A Case Outlines
Flanged
Ø 0.162
(4.12)
2 Holes
0.050
(1.27)
0.040 D (1.02) X
0.26 L (6.60) Pins
0.800
(20.32)
Non-Flanged
2
3
4
2.870
(72.90)
Max
2.550
(64.77)
2.110
(53.59)
Max
1.600
(40.64)
2.120
Max
(53.85)
1
6
5
1.110
(28.19)
0.380
(9.65)
Max
0.380
Max
(9.65)
Pin Designation
Pin No.
1
2
3
4
5
6
Designation
Positive Input
Positive Output
Case
Output Return
Input Return
Inhibit Input
Part Numbering
AFM 704A N /CH
Model
Applicable
Military Test
Standard
Screening
Blank, ES, HB, CH
Case Style
Blank = Flanged
N = Non-Flanged
Available Standard Miliatary Drawing (SMD) Cross Reference
Standard
Military Drawing
PIN
95010-01HXA
95010-01HZA
Vendor
CAGE
Code
52467
52467
Vendor
Similar
PIN
AFM704AN/CH
AFM704A/CH
IR WORLD HEADQUARTERS:
233 Kansas St., El Segundo, California 90245, USA Tel: (310) 252-7105
IR SANTA CLARA :
2270 Martin Av., Santa Clara, California 95050, Tel: (408) 727-0500
TAC Fax: (310) 252-7903
Visit us at www.irf.com for sales contact information.
Data and specifications subject to change without notice. 03/2006
www.irf.com
3
Microchip MCU
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