Up to 6 GHz Low Noise
Silicon Bipolar Transistor
Technical Data
Features
• Low Noise Figure:
1.4 dB Typical at 1.0 GHz
1.7 dB Typical at 2.0 GHz
• High Associated Gain:
18.0 dB Typical at 1.0 GHz
13.0 dB Typical at 2.0 GHz
• High Gain-Bandwidth
Product: 8.0 GHz Typical fT
• Surface Mount Plastic
Package
• Tape-and-Reel Packaging
Option Available[1]
AT-41486
86 Plastic Package
Note:
1. Refer to “Tape-and-Reel Packaging for
Semiconductor Devices”.
Description
Agilent’s AT-41486 is a general
purpose NPN bipolar transistor
that offers excellent high fre-
quency performance. The AT-
41486 is housed in a low cost
surface mount .085" diameter
plastic package. The 4 micron
emitter-to-emitter pitch enables
this transistor to be used in many
different functions. The 14 emitter
finger interdigitated geometry
yields an intermediate sized
transistor with impedances that
are easy to match for low noise
and moderate power applications.
Applications include use in
wireless systems as an LNA, gain
stage, buffer, oscillator, and
mixer. An optimum noise match
near 50 Ω at 900 MHz, makes this
device easy to use as a low noise
amplifier.
The AT-41486 bipolar transistor is
fabricated using Agilent’s 10 GHz
f
T
Self-Aligned-Transistor (SAT)
process. The die is nitride passi-
vated for surface protection.
Excellent device uniformity,
performance and reliability are
produced by the use of ion-
implantation, self-alignment
techniques, and gold metalization
in the fabrication of this device.
1
4
3
2
EMITTER
BASE
EMITTE
COLLECTOR
Pin Connections
414