
Low Current 8 Volt, Low Noise High fT Silicon Transistor 
MP4T682535 
Typical Scattering Parameters in the MIcro-X Package 
VCE = 8 Volts, IC = 5 mA 
Frequency 
S11E 
(MHz) 
Mag. 
Angle 
100 
0.66 
-15.7 
300 
0.54 
-42.2 
500 
0.41 
-61.2 
700 
0.32 
-75.3 
900 
0.25 
-86.9 
1500 
0.14 
-115.2 
1900 
0.11 
-142.6 
2500 
0.09 
143.9 
2900 
0.10 
128.4 
3300 
0.10 
108.0 
3900 
0.15 
92.4 
4500 
0.17 
79.4 
4900 
0.20 
69.5 
5500 
0.23 
58.8 
VCE = 8 Volts, IC = 10 mA 
Frequency 
S11E 
(MHz) 
Mag. 
Angle 
100 
0.49 
-22.0 
300 
0.36 
-55.9 
500 
0.26 
-78.4 
700 
0.20 
-96.0 
900 
0.13 
-125.3 
1500 
0.10 
-152.7 
1900 
0.11 
160.2 
2500 
0.13 
134.4 
2900 
0.14 
115.4 
3300 
0.15 
102.3 
3900 
0.20 
90.5 
4500 
0.27 
79.2 
4900 
0.25 
70.0 
5500 
0.29 
59.3 
VCE = 8 Volts, IC = 20 mA 
Frequency 
S11E 
(MHz) 
Mag. 
Angle 
100 
0.26 
-48.6 
300 
0.22 
-105.7 
500 
0.20 
-136.0 
700 
0.20 
-155.8 
900 
0.20 
-169.8 
1500 
0.22 
161.3 
1900 
0.24 
146.4 
2500 
0.27 
126.6 
2900 
0.29 
115.1 
3300 
0.31 
104.4 
3900 
0.36 
92.3 
Specification Subject to Change Without Notice 
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MP4T6825 Series
S21E 
S12E 
S22E 
Mag. 
12.95 
10.74 
8.54 
6.91 
5.74 
3.75 
3.10 
2.46 
2.15 
1.95 
1.72 
1.56 
1.50 
1.35 
Angle 
164.7 
139.8 
122.7 
110.8 
101.8 
83.3 
73.1 
60.6 
52.1 
47.2 
35.9 
26.4 
19.4 
9.9 
Mag. 
0.01 
0.02 
0.03 
0.04 
0.05 
0.08 
0.10 
0.12 
0.14 
0.15 
0.17 
0.20 
0.21 
0.23 
Angle 
86.0 
71.9 
66.4 
64.7 
63.8 
62.0 
59.1 
55.6 
53.0 
51.1 
46.7 
45.0 
42.2 
37.9 
Mag 
0.97 
0.88 
0.79 
0.73 
0.69 
0.63 
0.61 
0.58 
0.56 
0.56 
0.53 
0.53 
0.52 
0.50 
Angle 
-6.7 
-16.8 
-22.4 
-25.9 
-28.5 
-35.5 
-42.1 
-50.5 
-55.7 
-61.2 
-69.6 
-79.6 
-85.3 
-92.9 
S21E 
S12E 
S22E 
Mag. 
17.06 
12.71 
9.37 
7.28 
4.93 
3.76 
3.07 
2.43 
2.12 
1.92 
1.70 
1.53 
1.48 
1.32 
Angle 
160.4 
131.5 
114.5 
103.5 
88.8 
78.7 
69.0 
57.3 
49.2 
44.2 
33.3 
23.4 
16.4 
6.8 
Mag. 
0.01 
0.02 
0.03 
0.04 
0.06 
0.07 
0.09 
0.12 
0.13 
0.15 
0.17 
0.19 
0.21 
0.23 
Angle 
87.0 
71.9 
68.8 
68.8 
67.8 
65.9 
63.6 
59.2 
56.7 
54.4 
50.2 
47.8 
45.0 
40.5 
Mag 
0.96 
0.83 
0.74 
0.70 
0.65 
0.63 
0.61 
0.58 
0.57 
0.57 
0.54 
0.54 
0.53 
0.51 
Angle 
-7.9 
-17.6 
-21.5 
-24.0 
-28.6 
-33.4 
-40.0 
-48.9 
-54.4 
-60.7 
-69.3 
-80.0 
-86.0 
-94.2 
S21E 
S12E 
S22E 
Mag. 
17.16 
10.98 
7.55 
5.70 
4.56 
2.88 
2.34 
1.86 
1.63 
1.49 
1.33 
Angle 
154.3 
122.3 
106.7 
97.0 
89.8 
74.1 
64.4 
53.1 
45.1 
39.5 
29.7 
Mag. 
0.01 
0.02 
0.02 
0.03 
0.04 
0.06 
0.08 
0.10 
0.12 
0.14 
0.16 
Angle 
84.7 
72.6 
71.5 
72.3 
72.5 
70.7 
68.6 
65.6 
64.1 
61.9 
58.3 
Mag 
0.93 
0.80 
0.75 
0.72 
0.70 
0.68 
0.67 
0.64 
0.63 
0.63 
0.61 
Angle 
-0.8 
-14.8 
-17.3 
-19.8 
-22.4 
-31.3 
-38.4 
-48.2 
-54.5 
-61.5 
-70.7