FMC-461/883 INTERPOINT [Interpoint Corporation Company], FMC-461/883 Datasheet

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FMC-461/883

Manufacturer Part Number
FMC-461/883
Description
EMI INPUT FILTER 28 VOLT INPUT
Manufacturer
INTERPOINT [Interpoint Corporation Company]
Datasheet
F
• –55°C to +125°C operation
• Up to 50 dB attenuation
• Transient suppression
• Compliant to
• Compatible with
DESCRIPTION
The FMC-461™ EMI filter has been specifically designed to reduce
the input line reflected ripple current of Interpoint’s MHF, MTR, MTO,
MHV, MHF+, MHD, MTW, MHE, and MLP series of DC/DC
converters. It is intended for use in applications which have high
frequency switch-mode DC/DC converters and which must meet
MIL-STD-461C levels of conducted and radiated noise.
The FMC filter is built using thick-film hybrid technology and is
hermetically sealed in metal packages for military, aerospace, and
other high-reliability applications. The filter uses only ceramic
capacitors for reliable high temperature operation.
MIL-STD N
When used in conjunction with Interpoint converters, the FMC-461
filter reduces input ripple current by 40 dB within the frequency band
of 200 kHz to 50 MHz. This gives the filter/converter combination a
performance which exceeds the CEO3 test of MIL-STD-461C.
Typical FMC-461 filter frequency response and output impedance
behavior are shown in Figures 4 and 5. CEO3 performance of a
typical converter with the FMC-461 filter connected is shown in
Figure 3.
EATURES
400 kHz to 50 MHz
MIL-STD-461C, CE03
MIL-STD-704E
DC power bus
OISE
M
ANAGEMENT
Size (max): Non-flanged, case H1
Weight:
Screening: Standard, ES, or 883 (Class H). See Section C2 for
EMI I
2.125 x 1.125 x 0.400 (53.98 x 28.58 x 10.16 mm)
Flanged, case K2
2.910 x 1.125 x 0.400 inches (73.91 x 28.58 x 10.16 mm)
See Section B8, cases H1 and K2, for dimensions.
48 grams maximum
screening options, see Section A5 for ordering information.
28 V
NPUT
OLT
T
The FMC-461 filter also features a fast-reacting (1 pico second)
transient suppressor which begins clamping the input voltage at
approximately 47 VDC, protecting the DC/DC converter from
damage from induced line transients.
O
The filter is rated to operate with no degradation of performance
over the temperature range of -55°C to +125°C (as measured at the
baseplate). Above +125°C, current must be derated as specified on
the following page.
I
The maximum DC insertion loss for the FMC-461 filter (at a load of
22 watts) represents a power loss of less than 2% at typical input
voltage.
L
The case pin, and ideally the case, should be tied to the case of the
converter through a low-inductance connection.
I
NSERTION
RANSIENT
AYOUT
PERATING
NPUT
F
ILTER
R
EQUIREMENT
L
S
T
OSS
UPPRESSION
EMPERATURE
FMC-461NT
FMC EMI FILTER
FMC-461
MODEL
2.7 AMP
2.7 Amp
2.7 Amp
B3-13

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FMC-461/883 Summary of contents

Page 1

... Above +125°C, current must be derated as specified on the following page NSERTION OSS The maximum DC insertion loss for the FMC-461 filter (at a load of 22 watts) represents a power loss of less than 2% at typical input voltage AYOUT EQUIREMENT The case pin, and ideally the case, should be tied to the case of the converter through a low-inductance connection ...

Page 2

... STEADY STATE OUTPUT CURRENT RIPPLE STEADY STATE INTERNAL POWER DISSIPATION MAXIMUM CURRENT Notes 1. The FMC-461NT does not have a transorb and does not clamp the input voltage 2. Typical applications result in Vout within 2% of Vin. B3-14 EMI I F NPUT ILTERS RECOMMENDED OPERATING CONDITIONS Input Voltage Range • ...

Page 3

... For exact specifications for a DSCC product, refer to the DSCC drawing. See Section A3, “SMD/DSCC Lists”, for more information. F NPUT ILTERS 35 FMC-461 FMC-461/883 1: S – CHEMATIC YPICAL ALUES PIN OUT Dot on top of package indicates pin one 1 BOTTOM VIEW NON-FLANGED AND FLANGED 5 Dotted line outlines flanged package option ...

Page 4

... Rev A DQ# 4003 All technical information is believed to be accurate, but no responsibility is assumed for errors or omissions. Interpoint reserves the right to make changes in B3-16 products or specifications without notice. FMC-461 is a trademark of Interpoint. Copyright © 1991 - 1999 Interpoint. All rights reserved. EMI I F NPUT ...

Page 5

... Solder pins individually with heat application not exceeding 300 C for 10 seconds per pin. FMC EMI Filter: Screening – Standard, ES, or 883 SFMC EMI Filter: Screening – Space Standard Seam Seal 0.040 dia (1.02) Note: Although every effort has been made to render the case drawings at actual size, variations in the printing process may cause some distortion. Please refer to the numerical dimensions for accuracy ...

Page 6

CASE K Dot on top of case indicates pin one Flange Thickness: Cases K1, K2, K3 and MLP Series (K5) 0.060 (1.52) Cases K4, K5 (except MLP Series), K6, K7, and K8 0.067 +0.005/-0.007 (1.70 +0.13/-0.8) Materials Header Case K1 ...

Page 7

... Flanged cases: Designator required in Case Option position of model number. FMC EMI Filter: Screening – Standard, ES, or 883 SFMC EMI Filter: Screening – Space Standard Seam Seal 0.040 dia (1.02) 1.110 (28.19) 0.955 (24.26) 0.555 (14.1) 0.155 (3.94) 0.000 ...

Page 8

... RODUCTS STANDARD yes yes no no yes yes MGH Series MCH Series FM-704A EMI Filter FMD**/FME EMI Filter FMC EMI Filter FMH EMI Filter /ES /883 (Class H)* yes yes no yes yes no no yes yes no no yes yes no no yes ...

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