vishay sst309
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J/SST/U308 Series
Vishay Siliconix
Document Number: 70237S-04028—Rev . G, 04-Jun-01
7-1
N-Channel JFETs
J308SST308U309J309SST309U310
J310
SST310
FEATURES
BENEFITS
APPLICATIONS
D Excellent High Frequency Gain:Gps 11.5 dB @ 450 MHz
D Very Low Noise: 2.7 dB @ 450 MHz D Very Low Distortion
D High ac/dc Switch Off-Isolation
D Wideband High Gain
D Very High System Sensitivity D High Quality of Amplification
D High-Speed Switching Capability D
High Low-Level Signal Amplification
D High-Frequency Amplifier/Mixer D Oscillator
D Sample-and-Hold
D
Very Low Capacitance Switches
DESCRIPTION
The J/SST/U308 series offers superb amplification characteristics.Of special interest is its high-frequency performance. Even at 450MHz, this series offers high power gain at low noise.
Low-cost J series TO-226AA (TO-92) packaging supports automated assembly with tape-and-reel options. The SST series TO-236 (SOT-23) package provides surface-mount capabilities
and is available with tape-and-reel options. The U series hermetically-sealed TO-206AC (TO-52) package supports full military processing. (See Military and Packaging Information for further details.)
For similar dual products packaged in the TO-78, see the U430/431 data sheet .
D
S G
TO-236(SOT-23)
2
3
1
TO-226AA (TO-92)
Top View J308J309J310
D
G
S 1
2
3Top View SST308 (Z8)*SST309 (Z9)*SST310 (Z0)**Marking Code for TO-236
Top View U309U310
G and Case
TO-206AC (TO-52)
D
S
1
2
3
For applications information see AN104.
J/SST/U308 Series Vishay Siliconix
7-2
Document Number: 70237 S-04028—Rev. G, 04-Jun-01
ABSOLUTE MAXIMUM RATINGS
Gate-Drain, Gate-Source Voltage–25 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gate Current :(J/SST Prefixes)10 mA
. . . . . . . . . . . . . . . . . . . .
(U Prefix)20 mA
. . . . . . . . . . . . . . . . . . . . . . . . . .
Lead Temperature (1/16” from case for 10 sec.)300_C
. . . . . . . . . . . . . . . . . . . Storage Temperature :(J/SST Prefixes)–55 to 150_C
. . . . . . . . . . . . . .
(U Prefix)–65 to 175_C
. . . . . . . . . . . . . . . . . . . . Operating Junction Temperature–55 to 150_C
. . . . . . . . . . . . . . . . . . . . . . . . . .
Power Dissipation :(J/SST Prefixes)a350 mW
. . . . . . . . . . . . . . . . .
(U Prefix)b500 mW
. . . . . . . . . . . . . . . . . . . . . . .
Notes
a.Derate 2.8 mW/_C above 25_C
b.Derate 4 mW/_C above 25_C
Notes
a.Typical values are for DESIGN AID ONLY, not guaranteed nor subject to production B
b.Pulse test: PW v300 m s duty cycle v3%.
c.Gain (G pg) measured at optimum input noise match.