First, the gate - source voltage to 0V when considering (VGS = 0). In this state, the drain - source voltage VDS increases from 0V, and the drain current ID increases almost in proportion to VDS, this region is called a non-saturation region. VDS reaches a certain value or more changes in the drain current ID becomes smaller, almost constant value. At this point the ID called saturation drain current (sometimes also called the leakage current is represented by the corresponding IDSS and VDS this IDSS called pinch-off voltage VP, this area is called the saturated zone followed by the drain. - Source voltage is applied between a certain VDS (e.g. 0.8V), VGS value starts to increase from 0 in the negative direction, the value of ID from the IDSS began to slowly decrease to a value of VGS ID = 0 at this time is called the gate VGS -.-source cutoff voltage or the off-voltage, shown .n channel JFET situation is VGS (off) value with a negative sign, measurement of actual JFET correspond ID = VGS 0 because it is difficult FS7M0880TU wholesale, the amplifier with VGS (off) of small signal JFET, will reach ID = VGS definition 0.1-10μA for VGS (off) in the case of more STP65NF06 2014 年 4 25, Tokyo - Toshiba's Semiconductor & Storage Products Company today announced the launch of a small SO6 package optocouplers new product "TLP3905" and "TLP3906" with immediate effect in volume production. optocouplers photorelay MOSFET structure without the chip. The user can by optocouplers with optional external MOSFET combined thereby creating an isolation relay so for greater voltage and current, exceed the performance of existing photorelays product New product "TLP3905" and "TLP3906" Toshiba maintain existing products "TLP190B" and "TLP191B" Basic performance while being able to work by increasing the temperature to 125 ° C (max) and the insulation voltage to 3750Vrms (minimum) in order to expand the application fields. In addition FS7M0880TU supply, "TLP3906" incorporates a control circuit, can be released MOSFET gate charge, thus speeding up the opening speed;. This speed is about three times "TLP3905" other, "TLP3906" guarantees LED trigger current to ensure VOC (Min) *, making it easier to reduce the LED current power consumption. The new product is suitable for testing applications in line switch or PLC control high current applications. 耀坤 Technology, FS7M0880TU supply, provided by Nanjing Nanjing FS7M0880TU 耀坤 Technology Co., Ltd. Nanjing 耀坤 (www.njykkj888. com) adhere to the "people-oriented" business philosophy, with a professional staff, and strive to provide the best products and services to contribute to the community, and to welcome new and old customers to visit us and sincere cooperation for a better future 耀坤 Technology - - your trusted friend, Company Address: Nanjing Hongwu Road 359 Fuxin International Building, Room 2312, Contact: Yang.