2N/PN/SST4117A Series
Vishay Siliconix
N-Channel JFETs
2N4117A PN4117A SST4117
2N4118A PN4118A SST4118
2N4119A PN4119A SST4119
PRODUCT SUMMARY
Part Number
VGS(off) (V) V(BR)GSS Min (V) gfs Min (mS) IDSS Min (mA)
4117
4118
4119
−0.6 to −1.8
−1 to −3
−40
−40
−40
70
80
30
80
−2 to −6
100
200
FEATURES
BENEFITS
APPLICATIONS
D Ultra-Low Leakage: 0.2 pA
D Very Low Current/Voltage Operation
D Ultrahigh Input Impedance
D Low Noise
D Insignificant Signal Loss/Error Voltage
D High-Impedance Transducer
with High-Impedance Source
Amplifiers
D Low Power Consumption (Battery)
D Maximum Signal Output, Low Noise
D High Sensitivity to Low-Level Signals
D Smoke Detector Input
D Infrared Detector Amplifier
D Precision Test Equipment
DESCRIPTION
The 2N/PN/SST4117A series of n-channel JFETs provide
ultra-high input impedance. These devices are specified with
a 1-pA limit and typically operate at 0.2 pA. This makes them
perfect choices for use as high-impedance sensitive front-end
amplifiers.
The hermetically sealed TO-206AF package allows full
military processing per MIL-S-19500 (see Military
Information). The TO-226A (TO-92) plastic package provides
a low-cost option. The TO-236 (SOT-23) package provides
surface-mount capability. Both the PN and SST series are
available in tape-and-reel for automated assembly (see
Packaging Information).
TO-206AF
(TO-72)
TO-226AA
(TO-92)
TO-236
(SOT-23)
S
C
D
S
1
2
1
2
4
D
S
1
2
3
G
3
G
3
D
G
Top View
2N4117A
2N4118A
2N4119A
Top View
PN4117A
PN4118A
PN4119A
Top View
SST4117 (T7)*
SST4118 (T8)*
SST4119 (T9)*
*Marking Code for TO-236
For applications information see AN105.
Document Number: 70239
S-41231—Rev. G, 28-Jun-04
www.vishay.com
1