2N3957
FEATURES
TYPICAL NOISE: 6 NV/√HZ LOW CISS: 3.5PF TYPICAL HIGH INPUT IMPEDANCE REPLACEMENT FOR OTHER 2N3957,8 PARTS
Source
Case
Gate 3
6 Drain 7 Gate
DESCRIPTION
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 10p A at room temperatures. Parts are matched down to 5m V.
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.
Drain 2
Source
ORDERING GUIDE
Part Number 2N3957, 2N3958 Description
-50V Dual Matched N-Channel JFET
Bottom View
ABSOLUTE MAXIMUM RATINGS PARAMETER Reverse Gate Source and Gate Drain Voltage Continuous Forward Gate Current Continuous Device Power Dissipation Power Derating Operating Junction Temperature Storage Temperature
SYMBOL VRGS IFG PD P
TJ TSTG
0.195 (4.95) 0.175 (4.45)
VALUE...
