Datasheet > FMSA-461/883

FMSA-461/883

更新时间： 2024-11-20 06:59:43

品牌	Logo	应用领域
CRANE		输入元件 LTE
页数	文件大小	规格书
6页	233K
描述
EMI INPUT FILTER 28 VOLT INPUT

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FMSA-461/883 技术参数

是否Rohs认证：	不符合	生命周期：	Contact Manufacturer
包装说明：	PACKAGE-8	Reach Compliance Code：	compliant
ECCN代码：	EAR99	HTS代码：	8504.50.80.00
风险等级：	5.31	电容：	45000 µF
最大直流电阻：	1.2 Ω	滤波器类型：	DATA LINE FILTER MODULE
高度：	6.86 mm	最小绝缘电阻：	100 M Ω
JESD-609代码：	e4	长度：	24.89 mm
安装类型：	THROUGH HOLE MOUNT	功能数量：	1
端子数量：	26	最高工作温度：	125 °C
最低工作温度：	-55 °C	包装材料：	METAL
物理尺寸：	L24.89XB20.45XH6.86 (mm)/L0.98XB0.805XH0.27 (inch)	电源：	28
额定电流：	0.8 A	额定电压：	40 V
筛选级别：	38535Q/M;38534H;883B	子类别：	Data Line Filters
技术：	HYBRID	端子面层：	Gold (Au)
宽度：	20.45 mm	Base Number Matches：	1

FMSA-461/883 数据手册

FEATURES

FMSA EMI FILTER

0.8 AMP

EMI INPUT

28 VOLT

ILTER

NPUT

• –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

MODEL

FMSA-461

0.8 amp

Size (max.): 0.980 x 0.805 x 0.270 (24.89 x 20.45 x 6.86 mm)

Case A1

Weight:

10.3 grams typical, 11.5 grams maximum

Screening: Standard, ES, or 883 (Class H)

DESCRIPTION

The FMSA filter can also be used with other types of Interpoint

power converters (MHF, MHF+, MHE, MHD, and DCH series) to

comply with CE03. For MHF, MHF+, MHD, and MHE models, the

converter has an LC type line filter such that an inductor is seen

looking into its positive input terminal. For these converters, it is

necessary to terminate the filter with a capacitor to insure uncondi-

tionally stable operation. A capacitor across the filter output termi-

nals of greater than 4µF or the optional damping circuit shown on

the connection diagram will be adequate for stable operation. No

capacitor is required for MSA, or DCH models.

The FMSA-461 EMI filter module has been designed as a

companion for Interpoint MSA flyback power converters. Multiple

MSA power converters can be operated from a single filter provided

the total power line current does not exceed the filter maximum

rating. The FMSA filter will reduce the MSA’s power line reflected

ripple current to within the limit of MIL-STD-461C, Method CE03, as

shown in the example of Figures 4 and 5.

The FMSA is fabricated using thick film hybrid technology and is

sealed in a metal package for military, aerospace and other appli-

cations requiring EMI suppression. The filter uses only ceramic

capacitors for reliable high temperature operation.

OPTIONAL DAMPING CIRCUIT

The optional damping circuit (Figure 2) can be used to prevent filter

overshoot caused by MIL-STD-704A 80 V, or other, transients

having rise times of less than 200 µSec. This damping can be alter-

nately provided with a 1.50 Ω resistor in series with the filter positive

input where the additional line loss can be tolerated. For transients

with rise times of greater than 200 µsec, there is no overshoot and

the damping circuit is not required.

OPERATION

The MSA power converter has an internal 2 µF capacitor across its

input power terminals. When the MSA and FMSA filters are used

together, this capacitor becomes part of the filter and forms its final

LC output section. When 2 or 3 MSAs are used with a single filter,

this capacitor becomes 4 µF or 6 µF respectively, rather than 2 µF,

improving the rejection vs. frequency.

LAYOUT REQUIREMENTS

The case of the filter must be connected to the case of the converter

through a low impedance connection to minimize EMI.

12 3 4 5 6

中文翻译

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