Datasheet > F4804A

F4804A

更新时间： 2024-01-14 13:28:19

品牌	Logo	应用领域
BEL		LTE
页数	文件大小	规格书
27页	2999K
描述
Data Line Filter Module

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F4804A 技术参数

是否无铅：	含铅	是否Rohs认证：	不符合
生命周期：	Obsolete	Reach Compliance Code：	compliant
ECCN代码：	EAR99	HTS代码：	8504.50.80.00
风险等级：	7.77	滤波器类型：	DATA LINE FILTER MODULE
高度：	6.78 mm	JESD-609代码：	e4
长度：	25.4 mm	安装类型：	SURFACE MOUNT
最高工作温度：	85 °C	最低工作温度：	-40 °C
物理尺寸：	L25.4XB19.05XH6.78 (mm)/L1.0XB0.75XH0.267 (inch)	端子面层：	Gold (Au) - with Nickel (Ni) barrier
Base Number Matches：	1

F4804A 数据手册

Because of low series internal DC resistance, the F4804A filter generally does not require airflow and/or derating to ambient

temperatures up to 85 ˚C, if placed and interconnected as described below.

Good thermal design includes the appropriate placement of the filter on the system board as to maximize heat exchange

through the power pins. For high temperature operation in low airflow environments, use of 1-2 oz copper for the external

connection pads and provision for some extra copper at all four I/O pins is encouraged. Good thermal connection to the

power planes is important.

To check filter thermal characteristic in an actual system environment, attach a thermocouple to the top of each inductor.

The maximum temperature at these test points should not exceed 120 ˚C.

A typical application schematic is shown in Figure 5. The filter can be used to Bel Power Solutions or more converters.

For applications requiring filter current greater than 4 A divide the converters into smaller groups and use multiple filters or

use a F4810 or F2410 filter which is capable of providing up to 10 A. Do not connect filters in parallel.

Figure 5 - F4804A - Typical Application

For additional information regarding layout and EMC, refer to the Layout Considerations and EMI Considerations

Application notes.

The following bulleted items are considerations regarding the external components for the typical application shown in

Figure 5.



Input electrolytic capacitor C1. We recommend 1-2 µ F/W for 48 V applications. This capacitor is needed to ensure

stability of converters in presence of their negative input impedance characteristic. Note that electrolytic capacitors at -

40 ºC have 3-5 times less capacitance than at room temperature, and therefore it is good practice to check the power

system at worst case conditions from this point of view, i.e. lowest ambient temperature, minimum input voltage, and

maximum load. If electrolytic capacitors are restricted for use in the system, please contact the factory.



Input capacitors C2, C3 are optional; they decrease input ripple current and improve EMI. One or two of the following

ceramic chip capacitors per converter are recommended:

–TDK C4532X7R2A105, 1.0 µ F, 100 V

Common-mode capacitor (Y-cap) values and their EMI attenuation effects depend on system grounding and layout.

866.513.2839

tech.support@psbel.com

belpowersolutions.com

BCD.00344_AB

1 2 3 456 7 8...27

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与F4804A相关器件

型号	品牌	描述	获取价格	数据表
F4804A-G	BEL	Data Line Filter Module,	获取价格
F4804A-R	BEL	Data Line Filter Module	获取价格
F4804A-RG	BEL	Data Line Filter Module,	获取价格
F4804A-S	BEL	Data Line Filter Module	获取价格
F4804A-SR	BEL	Data Line Filter Module	获取价格
F4804A-SRG	BEL	Data Line Filter Module	获取价格

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