AT-41486
Up to 6 GHz Low Noise Silicon Bipolar Transistor
Data Sheet
86 Plastic Package
Pin Connections
Description
Avago’s AT-41486 is a general purpose NPN bipolar tran-
sistor that o ers excellent high frequency 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
di erent functions. The 14 emitter nger 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, bu er, oscil-
lator, and mixer. An optimum noise match near 50 Ω at
900 MHz, makes this device easy to use as a low noise
ampli er.
The AT-41486 bipolar transistor is fabricated using
Avago’s 10 GHz fT Self-Aligned-Transistor (SAT) process.
The die is nitride passivated for surface protection. Ex-
cellent 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.
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
Lead-free Option Available
1
4
3
2
EMITTER
BASE
EMITTER
COLLECTOR
414
2
AT-41486 Absolute Maximum Ratings
Absolute
Symbol Parameter Units Maximum[1]
V
EBO Emitter-Base Voltage V 1.5
V
CBO Collector-Base Voltage V 20
V
CEO Collector-Emitter Voltage V 12
I
C Collector Current mA 60
P
T Power Dissipation[2,3] mW 500
T
j Junction Temperature °C 150
T
STG Storage Temperature °C -65 to 150
Thermal Resistance[2,4]:
jc = 165°C/W
Notes:
1. Permanent damage may occur if any of
these limits are exceeded.
2. TCASE = 25°C.
3. Derate at 6 mW/°C for TC > 68°C.
4. See MEASUREMENTS section “Thermal Re-
sistance” for more information.
Electrical Speci cations, TA = 25°C
Symbol Parameters and Test Conditions Units Min. Typ. Max.
|S21E|2 Insertion Power Gain; VCE = 8 V, IC = 25 mA f = 1.0 GHz dB 17.5
f = 2.0 GHz 11.5
P1 dB Power Output @ 1 dB Gain Compression f = 2.0 GHz dBm 18.0
V
CE = 8 V, IC = 25 mA
G1 dB 1 dB Compressed Gain; VCE = 8 V, IC = 25 mA f = 2.0 GHz dB 13.5
NFO Optimum Noise Figure: VCE = 8 V, IC = 10 mA f = 1.0 GHz dB 1.4 1.8
f = 2.0 GHz 1.7
f = 4.0 GHz 3.0
GA Gain @ NFO; VCE = 8 V, IC = 10 mA f = 1.0 GHz dB 17.0 18.0
f = 2.0 GHz 13.0
f = 4.0 GHz 9.0
fT Gain Bandwidth Product: VCE = 8 V, IC = 25 mA GHz 8.0
hFE Forward Current Transfer Ratio; VCE = 8 V, IC = 10 mA — 30 150 270
ICBO Collector Cuto Current; VCB = 8 V μA 0.2
IEBO Emitter Cuto Current; VEB = 1 V μA 1.0
CCB Collector Base Capacitance[1]: VCB = 8 V, f = 1 MHz pF 0.25
Note:
1. For this test, the emitter is grounded.
Ordering Information
Part Numbers No. of Devices Comments
AT-41486-BLK 100 Bulk
AT-41486-BLKG 100 Bulk
AT-41486-TR1 1000 7" Reel
AT-41486-TR1G 1000 7" Reel
AT-41486-TR2 4000 13" Reel
AT-41486-TR2G 4000 13" Reel
Note: Order part number with a “G” su x if lead-free option is desired.
3
AT-41486 Typical Performance, TA = 25°C
FREQUENCY (GHz)
Figure 1. Noise Figure and Associated Gain vs.
Frequency. VCE = 8 V, IC = 10mA.
GAIN (dB)
IC (mA)
Figure 2. Optimum Noise Figure and Associated
Gain vs. Collector Current and Collector Voltage.
f = 2.0 GHz.
GAIN (dB)
0 10203040
Figure 3. Optimum Noise Figure and Associated
Gain vs. Collector Current and Frequency.
VCE = 8 V.
10 V
4 V
FREQUENCY (GHz)
Figure 5. Insertion Power Gain, Maximum
Available Gain and Maximum Stable Gain vs.
Frequency.
VCE = 8 V, IC = 25 mA.
GAIN (dB)
0.1 0.50.3 1.0 3.0 6.0
IC (mA)
GAIN (dB)
IC (mA)
Figure 4. Output Power and 1 dB Compressed
Gain vs. Collector Current and Frequency.
VCE = 8 V, f = 2.0 GHz.
24
20
16
12
8
4
G1 dB (dB) P1 dB (dBm)
010203040
P1dB
G1dB
24
21
18
15
12
9
6
3
0
8
6
4
2
0
NF (dB)
4
3
2
1
NFO (dB)
0.5 2.01.0 3.0 4.0 5.0
15
14
13
12
11
GA
GA
NFO
NFO
GA
NFO
NF50
6 V
0 10203040
2.0 GHz
2.0 GHz
4.0 GHz
4.0 GHz
6
4
2
0
NFO (dB)
16
14
12
10
8
IC (mA)
Figure 6. Insertion Power Gain vs. Collector
Current and Frequency. VCE = 8 V.
20
16
12
8
4
0
|S21E|2 GAIN (dB)
0 10203040
1.0 GHz
2.0 GHz
4.0 GHz
40
35
30
25
20
15
10
5
0
MSG
MAG
|S21E|2
10 V
4 V
6 V
4
AT-41486 Typical Scattering Parameters, Common Emitter, ZO = 50 Ω, TA = 25°C, VCE = 8 V, IC = 10 mA
Freq. S
11 S
21 S
12 S
22
GHz Mag. Ang. dB Mag. Ang. dB Mag. Ang. Mag. Ang.
0.1 .74 -38 28.1 25.46 157 -39.6 .011 68 .94 -12
0.5 .59 -127 22.0 12.63 107 -30.2 .031 47 .60 -29
1.0 .56 -168 16.8 6.92 84 -27.7 .041 46 .49 -29
1.5 .57 169 13.5 4.72 69 -26.2 .049 49 .45 -32
2.0 .62 152 11.1 3.61 56 -24.8 .058 43 .42 -39
2.5 .63 142 9.3 2.91 47 -23.4 .068 52 .40 -42
3.0 .64 130 7.6 2.41 37 -22.2 .078 52 .39 -50
3.5 .68 122 6.3 2.06 26 -20.6 .093 51 .37 -60
4.0 .71 113 5.1 1.80 16 -19.5 .106 48 .35 -70
4.5 .74 105 4.0 1.59 7 -18.0 .125 48 .35 -84
5.0 .77 99 3.1 1.42 -4 -17.2 .139 43 .35 -98
5.5 .79 93 2.0 1.27 -13 -16.3 .153 38 .35 -114
6.0 .81 87 1.1 1.13 -22 -15.4 .170 34 .35 -131
AT-41486 Typical Scattering Parameters, Common Emitter, ZO = 50 Ω, TA = 25°C, VCE = 8 V, IC = 25 mA
Freq. S
11 S
21 S
12 S
22
GHz Mag. Ang. dB Mag. Ang. dB Mag. Ang. Mag. Ang.
0.1 .50 -75 32.0 40.01 142 -41.3 .009 54 .85 -17
0.5 .55 -158 23.2 14.38 97 -34.1 .020 48 .51 -24
1.0 .57 177 17.5 7.50 78 -29.9 .032 61 .46 -24
1.5 .57 161 14.1 5.07 65 -27.3 .043 62 .44 -28
2.0 .59 148 11.5 3.75 53 -24.8 .058 59 .43 -35
2.5 .61 139 9.6 3.02 45 -22.9 .072 58 .40 -41
3.0 .65 128 8.0 2.52 34 -21.6 .083 57 .38 -49
3.5 .70 121 6.7 2.17 24 -20.1 .099 56 .36 -59
4.0 .74 113 5.7 1.92 14 -18.8 .115 52 .34 -72
4.5 .78 107 4.7 1.72 3 -17.6 .132 47 .32 -87
5.0 .78 102 3.7 1.53 -8 -16.6 .149 42 .31 -106
5.5 .78 96 2.7 1.36 -19 -15.4 .169 36 .31 -125
6.0 .76 91 1.6 1.21 -29 -14.5 .188 31 .33 -144
A model for this device is available in the DEVICE MODELS section.
AT-41486 Noise Parameters: VCE = 8 V, IC = 10 mA
Freq. NFO opt
GHz dB Mag Ang RN/50
0.1 1.3 .12 3 0.17
0.5 1.3 .10 16 0.17
1.0 1.4 .04 43 0.16
2.0 1.7 .12 -145 0.16
4.0 3.0 .44 -99 0.40
86 Plastic Package Dimensions
4
0.51 ± 0.13
(0.020 ± 0.005)
2.34 ± 0.38
(0.092 ± 0.015)
2.67 ± 0.38
(0.105 ± 0.15)
13
2
2.16 ± 0.13
(0.085 ± 0.005)
DIMENSIONS ARE IN MILLIMETERS (INCHES)
1.52 ± 0.25
(0.060 ± 0.010)
0.66 ± 0.013
(0.026 ± 0.005)
0.203 ± 0.051
(0.006 ± 0.002)
0.30 MIN
(0.012 MIN)
C
L
45°
5° TYP.
8° MAX
0° MIN
For product information and a complete list of distributors, please go to our web site: www.avagotech.com
Avago, Avago Technologies, and the A logo are trademarks of Avago Technologies in the United States and other countries.
Data subject to change. Copyright © 2005-2012 Avago Technologies. All rights reserved. Obsoletes 5989-2648EN
AV02-3624EN - June 14, 2012
