APC3.5 Connector​s

APC3.5 Series RF Coaxial Connectors

Precision Air-Dielectric Connectors for High-Frequency Microwave & Millimeter-Wave Applications (DC to 30GHz)

The APC3.5 Series RF Coaxial Connectors are engineered for uncompromising performance in modern high-frequency and millimeter-wave environments. Utilizing an advanced air boundary interface (air-dielectric design), these micro-miniature connectors achieve ultra-low insertion loss, superior mechanical stability, and exceptionally high electrical reliability..

Designed to be lightweight and compact, they are widely adopted across modern precision measurement fields, laboratory test benches, and high-end microwave communication infrastructures. Furthermore, the APC3.5 interface is fully interchangeable and mateable with standard SMA series connectors, making them an ideal, seamless upgrade for expanding your high-frequency network capabilities.

Key Performance of APC3.5 Connector

Interface Mating Dimensions

Why Choose Our APC3.5 Connectors?

• Ultra-High Frequency Range (DC–30 GHz): Delivering stellar signal integrity well into the millimeter-wave spectrum, perfect for next-generation telecom and test setups.

• Advanced Air-Dielectric Interface: Maximizes electrical performance by using air as the boundary medium, drastically reducing signal attenuation and phase instability.

• Cross-Series Compatibility: Fully mateable with standard SMA connectors, allowing engineers to blend precision APC3.5 components into existing SMA test setups seamlessly.

• Compact & Lightweight: Engineered with a miniature footprint to minimize weight budgets in dense electronic enclosures and aerospace/microwave modules.

• Rugged & Durable Construction: Precision-machined to ensure a tight, repeatable mechanical fit rated for up to 500 mating cycles.

Our APC3.5 Connectors Series

Our APC3.5 series lineup features various mounting configurations to seamlessly integrate with your system’s layout:

Applications of APC3.5 Connectors

• Precision Electronic Measurement: Ideal for network analyzer test ports, calibration kits, and high-precision laboratory test leads.

• Millimeter-Wave Communications: Deployed in high-capacity microwave backhauls, satellite communication terminals, and radar sub-systems.

• Aerospace & Defense: Resilient under thermal cycling (up to +105°C), making them trusted components for tactical radio systems and avionics.

• 5G/6G Infrastructure Testing: Critical for evaluating components in advanced wireless infrastructure working at higher frequency bands.

FAQ

1. Is the APC3.5 connector compatible with the standard SMA connector?

Yes. The APC3.5 interface is mechanically interchangeable and can mate directly with SMA series connectors. However, when high precision is required, mating APC3.5 with an air-dielectric interface provides significantly better VSWR and lower insertion loss compared to solid-dielectric SMA connectors.

2. What are the benefits of the “Air Interface” in APC3.5?

By using air as the dielectric boundary instead of solid materials like PTFE, the connector minimizes dielectric losses and eliminates the signal phase shifts caused by temperature variations in solid dielectrics. This ensures stable transmission performance up to 30 GHz.

3. Can you provide custom cable assemblies with APC3.5 connectors?

Yes. We support various cable configurations, including SFT-50-3-1 semi-rigid cable setups. Our engineering team can supply custom-length cable jumpers pre-terminated and tested to your exact frequency requirements.

Secure Your High-Frequency Performance Today

When dealing with millimeter-wave and microwave transmissions, even the smallest signal distortion can compromise your entire network or measurement accuracy. Our precision-engineered APC3.5 series delivers the rock-solid contact, low VSWR, and high durability your infrastructure demands.

Contact Our Engineering Team today to request a bulk quote, ask for product samples, or submit custom configuration specifications. Let’s elevate your RF capabilities together.