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参数资料
| 型号： | FMH-461F/883 |
| 厂商： | CRANE ELECTRONICS INC |
| 元件分类： | 数据传输滤波器 |
| 英文描述： | EMI INPUT FILTER 28 VOLT INPUT |
| 中文描述： | 1 FUNCTIONS, 40 V, 1.5 A, DATA LINE FILTER |
| 文件页数： | 1/9页 |
| 文件大小： | 308K |
| 代理商： | FMH-461F/883 |
B3-17
DESCRIPTION
Interpoint specifically designed the FMH-461 EMI filter to reduce
the input line reflected ripple current of the following high frequency
DC/DC converters: MHD, MHF, MHF+, MHV, MSA1, and MTR
series converters. It will also reduce EMI for several of Interpoint’s
lower frequency converters: MHE/MLP, MHL, MTO, and MTW
series. The FMH-461 filter is ideal for use in applications which must
meet MIL-STD-461C levels of conducted and radiated emissions.
Throughput current is 1.5 amps. At 16 VDC input (low line), the filter
provides 24 watts of throughput power.
MIL-STD NOISE MANAGEMENT
When used in conjunction with Interpoint converters, the FMH-461
EMI filter reduces input ripple current by 35 dB or greater at 200 kHz
and by at least 50 dB at 500 kHz (see Figures 5 and 6 and electrical
characteristics table). This attenuation gives the converter/filter
combination performance which exceeds MIL-STD-461C’s CE03
test.
FILTER OPERATION
FMH-461 filters are rated for full power operation from –55°C to
+125°C baseplate temperature. Operation is offered up to the
absolute maximum of +135°C with derating as defined in
“Recommended Operating Conditions” on the following page. The
maximum DC insertion loss at full load and nominal input voltage
(28 VDC) represents a power loss of less than 2%.
LAYOUT REQUIREMENTS
The case of the filter must be connected to the case of the converter
through a low impedance connection to minimize EMI.
1. MSA models may require an inductor in series with the MSA’s positive input.
2 H is the suggested value.
EMI INPUT FILTER
28 VOLT INPUT
FMH EMI FILTER
1.5 AMP
FEATURES
–55°C to +125°C operation
50 dB minimum attenuation
at 500 kHz
Compliant to MIL-STD-461C, CE03
Compatible with MIL-STD-704E
DC power bus
Size (max.): Non-flanged, case E3
1.460 x 1.130 x 0.330 (37.08 x 28.70 x 8.38 mm)
Flanged, case G3
2.005 x 1.130 x 0.330 inches (50.93 x 28.70 x 8.38 mm)
See Section B8, cases E3 and G3, for dimensions.
Weight:
22 grams typical, 28 grams maximum
Screening:
Standard, ES, or 883 (Class H). See Section C2 for screening
options, see Section A5 for ordering information.
MODEL
FMH-461
1.5 amp
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