AT-30511, AT-30533
Low Current, High Performance NPN
Silicon Bipolar Transistors
Data Sheet
Description
Avago’s AT-30511 and AT-30533 are high performance
NPN bipolar transistors that have been optimized for
maximum fT at low voltage operation, making them ideal
for use in battery powered applications in wireless mar-
kets. The AT-30533 uses the 3 lead SOT-23, while the AT-
30511 places the same die in the higher performance 4
lead SOT-143. Both packages are industry standard, and
compatible with high volume surface mount assembly
techniques.
The 3.2 micron emitter-to-emitter pitch and reduced para-
sitic design of these transistors yields extremely high per-
formance products that can perform a multiplicity of tasks.
The 5 emitter nger interdigitated geometry yields an ex-
tremely fast transistor with high gain and low operating
currents.
Optimized performance at 2.7 V makes these devices
ideal for use in 900 MHz, 1.8 GHz, and 2.4 GHz battery op-
erated systems as an LNA, gain stage, buer, oscillator, or
active mixer. Typical amplier designs at 900 MHz yield
1.3 dB noise gures with 13 dB or more associated gain at
a 2.7 V, 1 mA bias. Voltage breakdowns are high enough
for use at 5 volts. High gain capability at 1 V, 1 mA makes
these devices a good t for 900 MHz pager applications.
The AT-3 series bipolar transistors are fabricated using
an optimized version of Avago’s 10 GHz fT, 30 GHz fMAX
Self-Aligned-Transistor (SAT) process. The die are nitride
passivated for surface protection. Excellent device uni-
formity, performance and reliability are produced by the
use of ion-implantation, self-alignment techniques, and
gold metalization in the fabrication of these devices.
Features
• High Performance Bipolar Transistor Optimized for
Low Current, Low Voltage Operation
• 900 MHz Performance:
AT-30511: 1.1 dB NF, 16 dB GA
AT-30533: 1.1 dB NF, 13 dB GA
• Characterized for End-Of-Life Battery Use (2.7 V)
• SOT-23 and SOT-143 SMT Plastic Packages
• Tape-And-Reel Packaging Option Available
• Lead-free
Pin Connections and Package Marking
Notes:
Top View. Package Marking provides orientation and identication.
"x" is the date code.
BASE EMITTER
EMITTER COLLECTO
BASE EMITTER
COLLECTOR
305x
305x
SOT-23 (AT-30533)
SOT-143 (AT-30511)
Note:
Top view. Package marking provides orientation
and identification. "x" is the date code.