Datasheet > SCMT105K601H5P29-F

SCMT105K601H5P29-F

更新时间： 2024-09-23 03:33:15

品牌	Logo	应用领域
CDE		双极性晶体管
页数	文件大小	规格书
3页	334K
描述
Single/Dual IGBT Snubber Capacitor Modules

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SCM T型个或双个IGBT突波吸收密封盒装容器

Type SCMT Single/Dual IGBT Snubber Capacitor Modules

用途

Applications

使用SCMT型目的就像是放电限制分离耦合，是保护双IGBT模块。

Use style SCMT as a discharge restrictive de-coupling to protect

dual IGBT modules from overvoltage, Figure 1. Style SCMT

如图1，SCMT型也是有“N”型或“P”型突波吸收电容，各对一个IGBT.。

may also be used as an “N” or “P” type snubber component for a

clamp snubber where single IGBT modules are used, Figure 2.

特点

Highlights

可直接安装在IGBT上

一条或者两条引线可连接到电阻上

•

Mount directly to the IGBT module

低电感

•

1 or 2 wire taps for connecting external resistor

UL94VO阻燃环氧树脂封装

Low inductance

低损耗

Flame resistant case and epoxy, meets UL 94VO

各种间距的电容器可供选择

Low Loss

内装快恢管

Other terminal pitches and capacitance values available.

使用环保材料

Hyperfast diodes integrated into

package

RoHS Compliant

放电限制分离偶合

RCD吸收回路

Discharge Restrictive De-coupling

在图1中的线路中操作上与放电限制分离耦合一样，

RCD Clamp

这种突波吸收功能就像一个夹子，如图2，在关断时，

The circuit in Figure 1 operates on the same

The function of this snubber is similar to a clamp,

principles as the de-coupling capacitor, but only

但只有在关閉转换时，

during turn-off switching. As the IGBT turns

Figure 2. At turn-off, the snubber diode is forward

于是就产生了突波吸收的作用。感性线圈中产生的能量

biased and the snubber is activated. The energy

off, energy trapped in the loop inductance is

当IGBT关的时候，感性线圈中的能量被转移到电容上。

trapped in the stray inductance is absorbed by the

被突波吸收电容吸收了. 当打開时，突波吸收电容

snubber capacitor. During turn-on the snubber

transferred to the capacitor. The diode blocks

oscillations from occurring and excess charge on

从充电到充电过于饱和，通过电容内部电阻，二极管阻止了振荡。

the capacitor is discharged through the external

caps that were fully charged to bus voltage have

通过母线电压充至饱和，放电回路二极管的正向偏置，

a discharge path through the forward biased

resistor.

free-wheel diode, the IGBT, and the snubber

这样会减少反向瞬间电压.

IGBT，突波吸收电容电阻。

resistors. This reduces the reverse recovery voltage

transient.

CDE Cornell Dubilier•1605 E. Rodney French Blvd•New Bedford, MA 02744•Phone: (508)996-8561•Fax: (508)996-3830•www.cde.com

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