Composite tubes can be divided into two categories: one is general type composite tubes, with no internal baohuguan.37ix.com.cnmppguan.37ix.com.cnboligang.37ix.com.cnhdpeguan.37ix.com.cn

dutongxw.37ix.com.cn jubingxixw.37ix.com.cnprotective circuit, such as low and medium power composite tubes under 2W, the other is with internal protective circuit, such as high power composite tubes. The main characteristic parameters of silicon NPN high power composite tube are listed in the table below.