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MPF102 N-Channel JFET

The MPF102 JFET is a popular N-Channel JFET that is commonly used in low power amplifier circuits. The JFET is no longer in production and finding it might be difficult. So they are not recommended for new designs.  

2N547 N-Channel JFET

The 2N547 is an age old JFET that was commonly used in Pre-Amp circuits. The JFET has VDS of 25V and VGS of 25V with a Gate current of 10mA. The FET also has high Input Impedance and Low Input Capacitance.