Dual Matched N-Channel JFET - 1 FEATURES TYPICAL NOISE: 6 NV/√HZ LOW CISS: 3.5PF TYPICAL HIGH INPUT IMPEDANCE REPLACEMENT FOR OTHER 2N3957,8 PARTS The -50V 2N3957 and 2N3958 matched pair JFET’s are targeted for high input impedance applications for mid to high frequency designs. Gate leakages are typically 10pA at room temperatures. Parts are matched down to 5mV. The TO-71 package is hermetically sealed and suitable for military applications. Custom specifications, matching, and packaging options are available. TX, TXV, and S-Level Screening Available - Consult Factory. ORDERING GUIDE Part Number 2N3957, 2N3958 Description -50V Dual Matched N-Channel JFET ABSOLUTE MAXIMUM RATINGS Continuous Forward Gate Current Continuous Device Power Dissipation Power Derating Operating Junction Temperature Reverse Gate Source and Gate Drain Voltage Storage Temperature EMAIL: sales@solitrondevi

Dual Matched N-Channel JFET - 2 STATIC CHARACTERISTICS Typical @ 25°C unless otherwise noted. Gate to Source Breakdown Voltage Gate to Source Reverse Current Gate Operating Current Gate to Source Cutoff Voltage Gate Source Voltage Gate Source Forward Voltage Drain to Source Saturation Current DYNAMIC CHARACTERISTICS Typical @ 25°C unless otherwise noted. Forward Transconductance Output Conductance Input Capacitance Reverse Capacitance Noise Figure Differential Gate Current Saturation Drain Current Ratio Differential Gate Source Voltage Differential Gate Source Voltage with Temperature VDS = 20V,...