Condition: New other (see details)

Keysight 11901A 2.4 mm male to APC-3.5 mm male metrology-grade coaxial adapter. Supplied in its original labelled protective tube (red-capped), appearing unused and in like-new condition. Made in Malaysia. Item number 11901A-FG.

Included in the sale:
• 1 x Keysight 11901A 2.4 mm male to APC-3.5 mm male adapter
• Original Keysight protective storage tube with red cap

Please note that we have multiple units in stock, and the images presented are of one of them, therefore the cosmetic condition of the exact item you will receive may slightly differ.

The Keysight 11901A is a 2.4 mm male to 3.5 mm (APC-3.5) male metrology-grade coaxial adapter, designed for use in precision RF and microwave test environments where the highest levels of performance and repeatability are required. It enables seamless interfacing between instruments and devices using 2.4 mm and 3.5 mm connector interfaces, making it ideal for vector network analyser (VNA) setups, signal path connections, and calibration applications across the DC to 26.5 GHz frequency range.

Metrology-grade quality ensures this adapter is suited to the most demanding calibration and measurement applications, where connector repeatability and low reflection are critical. The 2.4 mm connector is mechanically compatible with 1.85 mm connectors, adding further versatility to the adapter's use in high-frequency test systems.

Specifications:
Connector Type (Port 1): 2.4 mm male
Connector Type (Port 2): 3.5 mm (APC-3.5) male
Frequency Range: DC to 26.5 GHz
Return Loss (minimum): > 26 dB
Repeatability: -54 dB
Overall Length (nominal): 20.9 mm (0.82 in)
Ref. Plane to Ref. Plane Length (nominal): 16.1 mm (0.63 in)
Diameter (nominal): 9.0 mm (0.35 in)
Grade: Metrology
Country of Manufacture: Malaysia
Series: 11900 Series

Keysight RF and Microwave Test Accessories Catalog — includes 11901A specifications and adapter selection guide: Download PDF

Keysight RF and Microwave Test Accessories Catalog (third-party hosted) — full specifications table including 11901A: Download PDF

Shipping & Returns Policy

Shipping Policy

• Processing Time: Orders are typically processed and dispatched within 1 business day.
• Shipping Methods: We offer Expedited Shipping to all destinations using UPS/DHL/Fedex/Royal Mail and other reputable carriers.
• Shipping Times: Mainland UK: 1-2 Business Days / Mainland Europe and USA: 2-3 Business Days / Rest of the World 5-7 Business Days.
• Shipping Costs: These are calculated at checkout based on the shipping method, destination and package dimensions.
• CUSTOMS AND TAXES: It is YOUR responsibility to liaise with customs in your country and ensure your package is cleared and any taxes are paid.
• Shipping Destinations: We ship worldwide.
• Tracking: Once your order is shipped, we will provide you with a tracking number via email.
• Insurance: All shipments are insured. In case of damage, please contact us via email within 48 hours of receiving the product with photographic evidence, please also ensure a report is logged with the delivery driver.

Returns Policy

• Return Period: In the event of an item being received which is not as specified, you can return your purchase within 14 days of delivery.
• Condition of Items: Items must be returned unused and in their original packaging.
• Return Method: All returns must be notified in writing to hello@ttinstruments.com, and the email should include the order number, date and reason for return within 14 days of delivery.
• Restocking Fees: A restocking fee of up-to 20% is applicable for items returned for any reason other than not as specified.
• Refund Method: Refunds are processed to the original method of payment within 5 business days of receiving the return.
• Exchanges: We do not offer exchanges. It will either be a replacement or a refund.
• Return Shipping Costs: Return shipping costs will be borne by the customer unless the item is not as specified, in which case we will arrange a prepaid return label.