An inline fixed attenuator with an SMA male input and SMA female output, rated 2 W average from DC to 8 GHz. Pick from 17 values between 1 dB and 60 dB to protect a receiver or analyzer input, set a test level, or improve the match between two stages.
Specifications
| Frequency | DC–8 GHz |
|---|---|
| Attenuation | 1–10, 15, 20, 25, 30, 40, 50, 60 dB (by option) |
| Average power | 2 W |
| VSWR | < 1.05 to < 1.3, by value (table below) |
| Impedance | 50 Ω |
| Connectors | SMA male (in), SMA female (out) |
| Body | Brass, tri-metal plated |
| Weight | 5 g |
| Mating cycles | ≥ 500 |
| Operating temperature | −45 °C to +125 °C |
| RoHS | Yes |
Attenuation options
| Attenuation | Attenuation accuracy | VSWR |
|---|---|---|
| 1 dB | 0.4 dB | < 1.25 |
| 2 dB | 0.4 dB | < 1.2 |
| 3 dB | 0.3 dB | < 1.2 |
| 4 dB | 0.3 dB | < 1.2 |
| 5 dB | 0.35 dB | < 1.1 |
| 6 dB | ±0.3 dB | < 1.05 |
| 7 dB | ±0.3 dB | < 1.2 |
| 8 dB | ±0.3 dB | < 1.2 |
| 9 dB | 0.4 dB | < 1.2 |
| 10 dB | ±0.3 dB | < 1.15 |
| 15 dB | 0.3 dB | < 1.1 |
| 20 dB | −0.35 dB | < 1.15 |
| 25 dB | 0.6 dB | < 1.2 |
| 30 dB | ±0.3 dB | < 1.25 |
| 40 dB | 1.5 dB | < 1.25 |
| 50 dB | +2.0 dB | < 1.3 |
| 60 dB | +2.5 dB | < 1.3 |
Values as stated in the maker’s datasheet.
Typical uses
- Protecting spectrum analyzer, SDR and VNA inputs
- Setting signal levels on a test bench
- Padding a mismatched port to improve return loss
- Sub-6 GHz radio, Wi-Fi and IF chain testing
In the box
- 1 × SMA fixed attenuator (value as selected)
Questions
Which value should I buy to protect an analyzer?
Pick the value that brings your strongest signal below the instrument's maximum input; 20 dB and 30 dB are common bench choices. All values are rated 2 W average.
Which way round does it go?
The male end is the input and the female end the output, but a fixed pad is passive and works in either direction.
Can I stack two attenuators?
Yes. Values add: a 10 dB and a 20 dB in series give about 30 dB.
Datasheet
Download the Kymopsis datasheet (PDF)
Ordering notes
- Ships from US stock. We email you the tracking number as soon as it leaves the warehouse.
- Orders to the United States have no import duties to pay at delivery.
- Figures above are manufacturer datasheet values, not a Kymopsis lab report. Ask us for the manufacturer test data where one exists.
- Images are manufacturer product photos; the first image adds the key specifications from the datasheet.
- Need a different band, connector, gender or length, or more than 10 pieces? Request a quote.
