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Resistance Value of Pi- and T-Type Attenuator Pads
Attenuation dB
Pi-Type
T-Type
R1
R2
R3
R1
R2
R3
0.5
1737.7
2.9
1737.7
1.4
868.1
1.4
1
869.5
5.8
869.5
2.9
433.3
2.9
2
436.2
11.6
436.2
5.7
215.2
5.7
3
292.4
17.6
292.4
8.5
141.9
8.5
4
221.0
23.8
221.0
11.3
104.8
11.3
5
178.5
30.4
178.5
14.0
82.2
14.0
6
150.5
37.4
150.5
16.6
66.9
16.6
7
130.7
44.8
130.7
19.1
55.8
19.1
8
116.1
52.8
116.1
21.5
47.3
21.5
9
105.0
61.6
105.0
23.8
40.6
23.8
10
96.2
71.2
96.2
26.0
35.1
26.0
11
89.2
81.7
89.2
28.0
30.6
28.0
12
83.5
93.2
83.5
29.9
26.8
29.9
13
78.8
106.1
78.8
31.7
23.6
31.7
14
74.9
120.3
74.9
33.4
20.8
33.4
15
71.6
136.1
71.6
34.9
18.4
34.9
16
68.8
153.8
68.8
36.3
16.3
36.3
17
66.4
173.5
66.4
37.6
14.4
37.6
18
64.4
195.4
64.4
38.8
12.8
38.8
19
62.6
220.0
62.6
39.9
11.4
39.9
20
61.1
247.5
61.1
40.9
10.1
40.9
21
59.8
278.3
59.8
41.8
9.0
41.8
22
58.6
312.7
58.6
42.6
8.0
42.6
23
57.6
351.4
57.6
43.4
7.1
43.4
24
56.7
394.6
56.7
44.1
6.3
44.1
25
56.0
443.2
56.0
44.7
5.6
44.7
26
55.3
497.6
55.3
45.2
5.0
45.2
27
54.7
558.6
54.7
45.7
4.5
45.7
28
54.1
627.0
54.1
46.2
4.0
46.2
29
53.7
703.7
53.7
46.6
3.6
46.6
30
53.3
789.8
53.3
46.9
3.2
46.9
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Wenteq Microwave Corp
- 735 West Duarte Road, Suite 401 Arcadia, CA 91007 – USA
www.wenteq.com
