Fixed Attenuators
Input Power Attenuated |
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| dB | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 20 | 30 | 40 |
| % | 20.57 | 36.90 | 49.88 | 60.19 | 68.38 | 74.88 | 80.05 | 84.15 | 87.41 | 90.00 | 99.00 | 99.90 | 99.99 |
Convenient Electrical Conversions |
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| VSWR | 1.05:1 | 1.10:1 | 1.15:1 | 1.20:1 | 1.25:1 | 1.30:1 | 1.35:1 | 1.40:1 | 1.50:1 | 2.00:1 |
| Return Loss (-dB) | 32.256 | 26.444 | 23.127 | 20.828 | 19.085 | 17.692 | 16.540 | 15.563 | 13.979 | 9.542 |
| Voltage Reflection Coeff. | 0.024 | 0.048 | 0.070 | 0.091 | 0.111 | 0.130 | 0.149 | 0.167 | 0.200 | 0.333 |
| Match Efficiency (%) | 99.94 | 99.97 | 99.51 | 99.17 | 98.77 | 98.30 | 97.78 | 97.22 | 96.00 | 88.89 |
| Mismatch Loss (-dB) | 0.003 | 0.010 | 0.021 | 0.036 | 0.054 | 0.075 | 0.097 | 0.122 | 0.177 | 0.512 |
For best results when selecting an RF attenuator for a given connector style, make sure to consider the amount of power being absorbed and the acceptable level of reflection (VSWR) that can be tolerated over the operating frequency range.
7-16 DIN Attenuators |
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| Part No. | Model | Average Power (Watts) | Peak Power (Watts) | Attenuation Value (dB) | Freq. (GHz) | VSWR (Max) | Attenuation Tolerance | Length (in) Diameter (in) Weight (g) | ||
| 603-dB-11 |  |
5 | 250 | 3, 6 dB 10, 20 dB 30 dB |
DC-2.5 | 1.20:1 | ± 0.30 dB ± 0.50 dB ± 0.75 dB |
L=2.98 D=7/16 DIN W=220 |
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| 606-dB-11 |  |
10 | 2000 | 3, 6 dB 10, 20 dB 30 dB |
DC-2.5 | 1.20:1 | ± 0.30 dB ± 0.50 dB ± 0.75 dB |
L=3.48 D=7/16 DIN W=213 |
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Type-N Attenuators |
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| Part No. | Model | Average Power (W) | Peak Power (W) | Attenuation Value (dB) | Freq. (GHz) | VSWR (Max) | Attenuation Tolerance | Length (in) Diameter (in) Weight (g) | ||
| 612-dB-1 |  |
2 | 1000 | 3, 6, 10, 20 dB 30 dB** |
DC-2.0 2.0-4.0 DC-2.0 2.0-4.0 |
1.15:1 1.25:1 1.25:1 1.35:1 |
± 0.6 dB ± 0.8 dB ± 1.0 dB ± 1.5 dB |
L=2.20 D=0.82 W=80 |
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| 605-dB-1 |  |
2 | 250 | 1, 6 dB 10, 20 dB 30 dB |
DC-4.0 4.0-6.0 |
1.15:1 1.20:1 |
± 0.30 dB ± 0.50 dB ± 0.80 dB |
L=1.76 D=0.62 W=48 |
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| 605-dB-1F18 | |
2 | 250 | 3, 6 dB 10, 20 dB 30, 40 dB |
DC-4.0 4.0-8.0 8.0-12.4 12.4-18.0 |
1.15:1 1.20:1 1.25:1 1.30:1 1.40:1 |
Hz-6.0 GHz; ± 0.30 dB ± 0.50 dB ± 0.80 dB 6.0-18.0 GHz; ± 0.50 dB ± 0.75 dB ± 1.00 dB |
L=1.76 D=0.62 W=2.08 |
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| 615-dB-1 | 2 | 1000 | 40-60 dB 70-90 dB |
DC-2.0 | 1.25:1 | ± 1.50 dB ± 2.00 dB |
L=3.2 D=0.88 W=4.10 |
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| 603-dB-1 |  |
5 | 125 | 1, 6 dB 10, 20 dB 30 dB |
DC-4.0 4.0-6.0 |
1.15:1 1.20:1 |
± 0.30 dB ± 0.50 dB ± 0.75 dB |
L=1.90 D=0.62 W=48 |
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| 606-dB-1F4 |  |
10 | 1000 | 3, 6, 10 & 20 dB 30 dB 3, 6, 10 & 20 dB 30 dB |
DC-1.0 1.0-4.0 |
1.15:1 1.35:1 |
± 0.25 dB ± 0.50 dB ± 0.50 dB ± 0.75 dB |
L=3.15 D=1.25 W=109 |
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| 630-dB-1F4 |  |
20 | 1000 | 3, 6, 10 & 20 dB 30 dB 3, 6, 10 & 20 dB 30 dB |
DC-1.0 1.0-4.0 |
1.15:1 1.35:1 |
± 0.25 dB ± 0.50 dB ± 0.50 dB ± 0.75 dB |
L=3.71 D=1.75 W=140 |
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| 650-dB-1F4 |  |
50 | 1000 | 3, 6, 10 & 20 dB 30 dB 3, 6, 10 & 20 dB 30 dB |
DC-1.0 1.0-4.0 |
1.15:1 1.35:1 |
± 0.25 dB ± 0.50 dB ± 0.50 dB ± 0.75 dB |
L=3.71 D=2.25 W=180 |
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| 690-dB-1 |  |
100 | 1000 | 3, 6, & 10 dB 20, 30 dB |
DC-2.0 2.0-3.0 |
1.20:1 1.30:1 |
± 0.30 dB ± 0.50 dB |
L=8.00 D=3.50 W=3.5 lbs |
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| 697-dB-1 |  |
150 | 1000 | 3, 6, & 10 dB 20, 30 dB |
DC-2.0 2.0-3.0 |
1.30:1 1.40:1 |
± 0.30 dB ± 0.50 dB |
L=7.97 D=5.00 W=5.1 lbs |
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TNC Attenuators |
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| Part No. | Model | Average Power (W) | Peak Power (W) | Attenuation Value (dB) | Freq. (GHz) | VSWR (Max) | Attenuation Tolerance | Length (in) Diameter (in) Weight (g) | ||
| 612-dB-1 |  |
2 | 2000 | 3, 6, 10, 20 dB 30 dB** |
DC-2.2 2.0-4.0 DC-2.2 2.0-4.0 |
1.25:1 1.45:1 1.25:1 1.45:1 |
± 0.75 dB ± 1.25 dB ± 1.25 dB ± 1.5 dB |
L=1.93 W=0.63 |
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Type-N Attenuators |
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| Part No. | Model | Average Power (W) | Peak Power (W) | Attenuation Value (dB) | Freq. (GHz) | VSWR (Max) | Attenuation Tolerance | Length (in) Diameter (in) Weight (g) | ||
| 662-dB-1 |  |
2 | 2000 | 3, 6, 10, 20 dB 30 dB** |
DC-2.0 2.0-4.0 DC-2.0 2.0-4.0 |
1.15:1 1.25:1 1.25:1 1.35:1 |
± 0.6 dB ± 0.8 dB ± 1.0 dB ± 1.5 dB |
L=1.31 D=11/35 Hex W=62 |
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| 665-dB-1 |  |
2 | 250 | 0-6 dB 7-20 dB 21-30 dB |
DC-4.0 4.0-8.0 8.0-12.4 12.4-18.0 |
1.15:1 1.20:1 1.25:1 1.25:1 |
± 0.30 dB ± 0.50 dB ± 0.75 dB |
L=0.87 D=0.28 W=4.5 (1-20 db)5.0 (30 dB) |
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| 665-dB-1H |  |
2 | 250 | 0-6 dB 7-20 dB 21-30 dB |
DC-4.0 4.0-8.0 8.0-12.4 12.4-18.0 |
1.15:1 1.20:1 1.25:1 1.35:1 |
± 0.30 dB ± 0.50 dB ± 0.75 dB |
L=0.86 D=0.312 Hex W=4..6 |
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| 602-dB-1 |  |
5 | 125 | 3, 6 dB 10, 20 dB 30 dB |
DC-4.04.0-6.0 | 1.15:1 1.20:1 |
± 0.30 dB ± 0.50 dB ± 0.75 dB |
L=1.20 D=0.61 W=8.3 |
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| 604-dB-1 | 10 | 500 | 3, 6 dB 10, 20 dB 30 dB |
DC-6.0 | 1.20:1 | ± 0.30 dB ± 0.50 dB ± 0.70 dB |
L=1.70 D=1.0 W=26 |
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| 631-dB-1F4 |  |
20 | 500 | 3, 6, dB 10, 20 dB 30 dB |
DC-6.0 | 1.20:1 | ± 0.30 dB ± 0.50 dB ± 0.75 dB |
L=2.33 D=1.49 W=74 |
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BNC Attenuators |
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| Part No. | Model | Average Power (W) | Peak Power (W) | Attenuation Value (dB) | Freq. (GHz) | VSWR (Max) | Attenuation Tolerance | Length (in) Diameter (in) Weight (g) | ||
| 612-dB-2 | |
2 | 2000 | 3, 6, 10, 20 dB 30 dB** |
DC-2.2 2.0-4.0 DC-2.2 2.0-4.0 |
1.25:1 1.45:1 1.25:1 1.45:1 |
± 0.75 dB ± 1.25 dB ± 1.25 dB ± 1.50 dB |
L=1.82 D=0.57 W=5.0 |
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QMA Attenuators |
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| Part No. | Model | Average Power (W) | Peak Power (W) | Attenuation Value (dB) | Freq. (GHz) | VSWR (Max) | Attenuation Tolerance | Length (in) Diameter (in) Weight (g) | ||
| 663-dB-1 |  |
2 | 500 | 3, 6, 10, 20 dB 30 dB** |
DC-2.22.0-4.0 DC-2.0 2.0-4.0 |
1.15:1 1.25:1 1.25:1 1.35:1 |
± 0.60 dB ± 0.80 dB ± 1.00 dB ± 1.50 dB |
L=1.63 W=0.63 |
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