参数资料
型号: B32798G4206J
厂商: EPCOS Inc
文件页数: 13/19页
文件大小: 0K
描述: FILM CAP 20UF 5% 400V MKP
产品目录绘图: B32zzzG Series Side 1
B32zzzG Series Side 2
标准包装: 27
系列: B32798
电容: 20µF
额定电压 - AC: 400V
额定电压 - DC: *
电介质材料: 聚丙烯,金属化
容差: ±5%
ESR(等效串联电阻): *
工作温度: -40°C ~ 105°C
安装类型: 通孔
封装/外壳: 径向
尺寸/尺寸: 2.264" L x 1.378" W(57.50mm x 35.00mm)
高度 - 座高(最大): 1.969"(50.00mm)
端子: PC 引脚
引线间隔: 2.067"(52.50mm)
特点: 交流和双倍脉冲
包装: 散装
其它名称: B32798G4206J000
B32794 ... B32798
MKP AC filtering
1.3
General notes on soldering
Permissible heat exposure loads on film capacitors are primarily characterized by the upper cate-
gory temperature T max . Long exposure to temperatures above this type-related temperature limit
can lead to changes in the plastic dielectric and thus change irreversibly a capacitor's electrical
characteristics. For short exposures (as in practical soldering processes) the heat load (and thus
the possible effects on a capacitor) will also depend on other factors like:
Pre-heating temperature and time
Forced cooling immediately after soldering
Terminal characteristics:
diameter, length, thermal resistance, special configurations (e.g. crimping)
Height of capacitor above solder bath
Shadowing by neighboring components
Additional heating due to heat dissipation by neighboring components
Use of solder-resist coatings
The overheating associated with some of these factors can usually be reduced by suitable coun-
termeasures. For example, if a pre-heating step cannot be avoided, an additional or reinforced
cooling process may possibly have to be included.
EPCOS recommends the following conditions:
Pre-heating with a maximum temperature of 110 ° C
Temperature inside the capacitor should not exceed the following limits:
MKP/MFP 110 ° C
MKT 160 ° C
When SMD components are used together with leaded ones, the leaded film capacitors should
not pass into the SMD adhesive curing oven. The leaded components should be assembled af-
ter the SMD curing step.
Leaded film capacitors are not suitable for reflow soldering.
Uncoated capacitors
For uncoated MKT capacitors with lead spacings ≤ 10 mm (B32560/B32561) the following mea-
sures are recommended:
pre-heating to not more than 110 ° C in the preheater phase
rapid cooling after soldering
Please read Cautions and warnings and
Important notes at the end of this document.
Page 13 of 19
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