735 West Duarte Road, Suite 401
 Arcadia, CA 91007
 Phone: (626) 821-9118
 Fax: (626) 602-3101
 E-mail: Sales@wenteq.com, wenteq@yahoo.com

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Resistance Value of Pi- and T-Type Attenuator Pads

Zoin= 50 ohm, Zoout= 50 ohm  
           
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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