n-channel JFET
n-channel JFETs
designed for • • •
• Ultra-High Input Impedance Amplifiers
Electrometers pH Meters Smoke Detectors
ABSOL...
Description
n-channel JFETs
designed for
Ultra-High Input Impedance Amplifiers
Electrometers pH Meters Smoke Detectors
ABSOLUTE MAXIMUM RATINGS (25°C)
Reverse Gate-Drain or Gate-Source Voltage ......... -40 V Gate Current ............................... 10 rnA Total Device Dissipation at 25°C Ambient
(Derate 3.27 mW;oC) ...................... 360 mW Operating Temperature Range ............. -55 to 135°C Storage Temperature Range............... -55 to 150°C Lead Temperature Range
(1/16" from case for 10 seconds) ..............300°C
.H
Siliconix
Performance Curves NT See Sedion 4
BENEFITS Low Power
lOSS < 90 J1.A (PN4117)
Minimum Circuit Loading
IGSS < 1 pA (PN4117A Series)
TO·92 See Section 6
,~:
GO
SC
oc Bottom View
Plastic
"ZZ"
~~
----10"""1 --"ZZ"
~~
1J>0"J"">1
--"ZZ"
~~
o~(X)
--"ZZ"
~~
o~(X) J>J>
ELECTRICAL CHARACTERISTICS (25°C unless otherwise noted)
CharacteristIC
: -1
.~
3
S T
-4"
A T
-5
6
I C
-
B
-
0 Y
9N
_A
M 10 I
-c
11
IGSS
IGS5 BVGSS VGSloffl lOSS 9fs gos CISS Crss
Gate Reverse Current PN4117 Series Only
Gate Reverse Current PN4117A Senes Only
Gate-Source Breakdown Voltage
Gate-Source Cutoff Voltage
Saturation Dram Current (Note 2)
Common-Source Forward Transconductance (Note 2)
Common-Source Output Conductance
Common-Source Input Capal::1tance
Common·Source Reverse Transfer Capacitance
PN4117 PN4117A
PN4118 PN4118A
PN4ll9 PN4119A
PN4120 PN412DA
Min Typ Max Min Typ Max Min Typ Max Min Typ Max
Umt
-10 -10 -10 -20 pA
-25 -25 -25 -50 n...
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