Description
5 W SMA Step Attenuator – 0–30 dB in 1 dB steps, DC–3 GHz
The CentronRF SMA step attenuator lets you set any attenuation from 0–30 dB in 1 dB steps, covering DC–3 GHz with 5 W average power handling. Instead of swapping fixed attenuators, you dial in the exact level you need, which makes it a fast, repeatable tool for test benches and receiver measurements.
The precision SMA connector suits lab benches, PCB test points, microwave modules, SDRs and compact RF assemblies where space is tight.
Key features
- 0–30 dB adjustable in 1 dB steps
- DC–3 GHz frequency range
- 5 W average power
- Insertion loss ≤3.0dB
- VSWR ≤1.40, 50 Ω
- SMA male to female connectors
Applications
- Receiver sensitivity and dynamic-range testing
- Setting signal levels in labs, classrooms and production lines
- Simulating path loss in wireless link tests
- Calibrating and verifying RF test systems
Specifications
| Product | Step attenuator |
|---|---|
| Model | MANASK0503-5/30MF |
| Frequency range | DC–3 GHz |
| Impedance | 50 Ω |
| Attenuation range | 0–30 dB |
| Step size | 1 dB |
| Average power | 5 W |
| Insertion loss | ≤3.0dB |
| VSWR | ≤1.40 |
| Connector | SMA male to female |
FAQ
What is the difference between a step attenuator and a fixed attenuator?
A fixed attenuator has one value. A step attenuator lets you change the attenuation in fixed increments, so one unit replaces a whole set of fixed attenuators.
What does insertion loss mean here?
It is the loss the attenuator adds at its 0 dB setting (≤3.0dB); add it to the dialled value when you calculate the total attenuation.
Why buy from CentronRF
CentronRF is the official global e-shop of Centron Microwave Components, the maker of the RF POWER, Milcom and Microwave Centron brands. You buy direct from the factory, and our team can help you choose the right part or quote custom versions and volume orders. Contact us at [email protected] or on WhatsApp +86 131 6872 5545.



