You can purchase dimmable or variable attenuators from major electronics distributors like Mouser, DigiKey, Arrow, and online retailers such as Amazon.

Recommended Suppliers

1. Mouser Electronics Mouser stocks a wide range of attenuators, including variable and programmable types suitable for RF, audio, and test equipment. They carry products from leading manufacturers like Analog Devices, MACOM, Mini-Circuits, pSemi, Qorvo, and Skyworks, with same-day shipping available . You can filter by attenuation value, frequency range, and connector type to find a dimmable attenuator that meets your requirements. 2. DigiKey DigiKey offers a large selection of attenuators with attenuation values from 0 dB to 69 dB and frequency ranges up to 86 GHz. Their inventory includes variable and step attenuators, and you can order online for fast shipping . 3. Arrow Electronics Arrow provides attenuators from manufacturers such as Huber Suhner, Analog Devices, TE Connectivity, and Amphenol ICC. They offer fixed, variable, and digitally programmable attenuators for RF and optical applications, all in stock and ready to ship . 4. Amazon Amazon carries compact and durable attenuators for wireless, audio, and test equipment. While the selection may be more general, it is convenient for quick purchases and includes user reviews to help with product selection .

Tips for Choosing a Dimmable Attenuator

• Attenuation Range: Ensure the device covers the signal reduction you need.
• Frequency Range: Match the attenuator to your application's operating frequency.
• Power Handling: Verify it can handle the signal power without distortion.
• Connector Type: Check compatibility with your existing equipment.
• Variable vs Step: Decide if you need continuous adjustment (dimmable) or discrete steps. By using these distributors, you can compare specifications, check stock availability, and order a dimmable attenuator that fits your technical requirements.