J/SST270 Series
Vishay Siliconix
P-Channel JFETs
J270
J271
PRODUCT SUMMARY
Part Number
J/SST270
J/SST271
SST270
SST271
V
GS(off)
(V)
0.5 to 2.0
1.5 to 4.5
V
(BR)GSS
Min (V)
30
30
g
fs
Min (mS)
6
8
I
DSS
Min (mA)
–2
–6
FEATURES
D
D
D
D
Low Cutoff Voltage: J270 <2 V
High Input Impedance
Very Low Noise
High Gain
BENEFITS
D
Full Performance from Low-Voltage Power
Supply: Down to 2 V
D
Low Signal Loss/System Error
D
High System Sensitivity
D
High-Quality, Low-Level Signal Amplification
APPLICATIONS
D
High-Gain, Low-Noise Amplifiers
D
Low-Current, Low-Voltage Battery
Amplifiers
D
Ultrahigh Input Impedance Pre-Amplifiers
D
High-Side Switching
DESCRIPTION
The J/SST270 series consists of all-purpose amplifiers for
designs requiring p-channel operation.
The TO-226AA (TO-92) plastic package provides a low-cost
option, while the TO-236 (SOT-23) package
provides surface-mount capability. Both the J and SST series
are available in tape-and-reel for automated assembly (see
Packaging Information).
TO-226AA
(TO-92)
D
1
D
G
2
S
S
3
2
1
TO-236
(SOT-23)
3
G
Top View
Top View
J270
J271
SST270 (S0)*
SST271 (S1)*
*Marking Code for TO-236
ABSOLUTE MAXIMUM RATINGS
Gate-Drain Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 V
Gate-Source Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 V
Gate Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –50 mA
Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –55 to 150_C
Operating Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . –55 to 150_C
Document Number: 70258
S-04233—Rev. D, 02-Jul-01
Lead Temperature (
1
/
16
” from case for 10 sec.) . . . . . . . . . . . . . . . . . . . 300_C
Power Dissipation
a
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 350 mW
Notes
a. Derate 2.8 mW/_C above 25_C
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