Key Specifications
Description
SMA Jack (Female) to Precision N Jack (Female) | 4‑Hole Panel Flange Adapter | Brass Body
Last Updated: 2026-02-11
The ROSNOL AD-A2PCN25A-PF/91‑H4 is a precision‑engineered SMA jack (female) to Precision N jack (female) 4‑hole panel flange adapter designed for dependable broadband RF and microwave performance. With a 50‑ohm impedance and operating range from DC to 18 GHz, this adapter supports low‑loss, stable signal transmission with VSWR ≤ 1.2 and excellent return‑loss characteristics. Additional electrical performance includes insertion loss ≤ 0.04 × √F(GHz) dB, insulation resistance ≥ 5 GΩ, test voltage of 1000 V rms, working voltage of 480 V rms, and RF leakage ≥ 90 dB up to 1 GHz. Both SMA and Precision N interfaces employ secure screw‑lock coupling, ensuring reliable mating stability. Durability is reinforced with a minimum of 500 mating cycles, axial contact captivation ≥ 28 N, and recommended torque ranges of 0.80–1.10 Nm (SMA) and 0.70–1.10 Nm (N). The 4‑hole flange configuration enables robust mounting for panel‑based RF modules, instrumentation enclosures, and integrated system architectures.
The connector assembly incorporates high‑quality materials for long‑term mechanical and electrical integrity. On the Precision N side, the center contact is manufactured from phosphor bronze with 3 µin gold plating over an 80 µin non‑magnetic nickel‑phosphorus underplating, while the body uses a brass copper‑tin‑zinc alloy. The SMA side features a beryllium‑copper center contact with identical gold‑plating structure, paired with a brass body finished with 3 µin gold over nickel‑phosphorus. Both sides utilize PTFE dielectric elements to maintain stable RF performance, and a silicone‑rubber gasket provides environmental sealing. These material characteristics make the AD-A2PCN25A-PF/91‑H4 suitable for RF laboratories, wireless communication systems, radar platforms, embedded RF chassis, and precision‑panel applications requiring low‑loss transitions between SMA and Precision N interfaces.
All ROSNOL RF and microwave components, including the AD-A2PCN25A-PF/91‑H4, are produced under ISO 9001‑certified manufacturing processes to ensure consistent product quality. The adapter is fully compliant with RoHS and REACH environmental regulations, supporting international deployment across global markets. ROSNOL remains committed to delivering high‑performance RF interconnect solutions engineered for reliability, durability, and advanced system integration.
