SMA Female PCB Solder 18GHz

SMA Female PCB Solder 18GHz – High-Frequency RF Connector for Precision Applications

SIPU RF Technology Co., Ltd. introduces the SMA Female PCB Solder 18GHz Connector (Model: SIPU-SMA-KHD17), a premium RF connection developed for high-frequency applications. The connection provides excellent performance from DC to 18 GHz with characteristic impedance 50Ω, VSWR < 1.05 + 0.012 F(GHz), and insertion loss ≤ 0.05 √ F(GHz) dB. It has a gold-plated brass outer conductor, gold-plated beryllium bronze center contact and PTFE dielectric for excellent conductivity and signal integrity. The 4-hole flange mount and φ1.3 × 2 mm microstrip interface design provides reliable PCB mount operation in high-volume manufacturing applications. The connection is designed to fulfil strict telecommunications, aerospace, and test & measurement specifications with an operational temperature range of -65℃ to +125℃ and ≥500 mating cycles.

SMA Female PCB Solder 18GHz Specifications

Why Choose This High-Frequency Connector?

The SMA Female PCB Solder 18GHz connection is designed to handle the essential problems of current RF design. As the frequency increases, it is more and more difficult to preserve the signal integrity in the circuits at microwave frequencies. The connection removes the impedance mismatch at the PCB-to-connector interface and reduces signal reflection and power dissipation.

Optimise solder-leg shape to assist in heat dissipation during assembly for your designs. This avoids delamination and safeguards your PCB traces from heat stress. 

The four-hole flange soldered construction features outstanding mechanical stability and favorable grounding characteristics.. This connection is dependable in situations where conventional connectors could break because of a mechanical stress or thermal expansion mismatch.

Core Advantages for Your Applications

Proven High-Frequency Performance

The connection can operate consistently up to 18 GHz and the impedance matching is steady across the whole frequency range. We ensure your RF systems work as intended with no surprises of resonance or signal deterioration.

Durable Construction

The beryllium bronze center contact has good spring properties to maintain steady contact pressure for 500+ mated cycles. Brass gold plating offers high corrosion resistance and long term durability in a variety of environmental situations.

Optimized for High-Volume Production

The PCB solder-mount design makes your production process easier. The high-temperature PTFE dielectric preserves dimensional stability and electrical qualities whether you employ conventional wave soldering or lead-free reflow procedures (up to 260°C peak temperature).

Low Signal Loss

With insertion loss at only 0.05√F(GHz) dB, your signals travel through with minimal attenuation. This efficiency is critical when you're designing systems where every fraction of a decibel matters for overall system performance.

Application Scenarios

Telecommunications Infrastructure

Your 5G base stations and small cell backhaul units require connectors that handle increased data throughput. The SMA Female PCB Solder 18GHz supports power amplifiers and RF front-end modules where high-frequency performance directly impacts network capacity.

Aerospace and Defense Systems

When you integrate this connector into radar modules or satellite communication payloads, it withstands extreme vibration and thermal cycling from -65℃ to +125℃. The connector maintains signal integrity even in mission-critical applications where failure is not an option.

Test and Measurement Equipment

Your evaluation boards for microwave semiconductors and RFICs need reliable ports for Vector Network Analyzer connections. This connector provides the stable reference plane required for accurate S-parameter measurements during R&D and quality verification.

Industrial RF Systems

Manufacturing environments demand connectors that maintain shielding effectiveness in densely packed electronics. This connector delivers consistent EMI/RFI protection while supporting high-power pulses in your industrial control systems.

Quality Assurance You Can Trust

SIPU RF Technology employs rigorous inspection protocols for every batch. Each connector undergoes dielectric withstanding voltage testing at 1,000 V using specialized insulation testers to verify electrical safety and integrity.

Your quality assurance is enhanced through batch-level plating inspection. We verify plating thickness and adhesion strength to ensure long-term reliability. Every production batch receives RoHS environmental compliance testing, giving you documentation for international regulatory requirements.

While VSWR and insertion loss are guaranteed through precision design and manufacturing consistency, we provide comprehensive electrical performance verification for critical applications. You receive products manufactured to MIL, GJB, and IEC standards with over 25 years of RF engineering expertise backing every connector.

Frequently Asked Questions

Q: Why is 18 GHz the standard rating for this SMA connector?

A: The 18 GHz limit represents the theoretical cutoff frequency for standard SMA geometry. Beyond this frequency, higher-order propagation modes can emerge, causing signal distortion and unpredictable performance. The connector's physical dimensions are precisely controlled to maintain single-mode operation up to this threshold.

Q: Can I use lead-free reflow soldering with this connector?

A: Yes, the connector is designed for lead-free reflow processes. The high-temperature PTFE dielectric and gold-plated contacts withstand peak reflow temperatures of 260°C without deformation or degradation in electrical performance.

Q: How should I design the PCB footprint for optimal 18 GHz performance?

A: Use a co-planar waveguide or microstrip transition design. The launch area must minimize capacitive and inductive parasitics. Maintain controlled impedance traces right up to the connector interface, and ensure proper ground plane continuity around the mounting holes.

Q: What is your lead time for standard products?

A: Standard SMA connectors are available from stock with dispatch within 72 hours. We maintain inventory of commonly specified models to support your rapid prototyping and production schedules.

Q: How does the gold plating affect high-frequency signals?

A: At 18 GHz, the skin effect confines current flow to the conductor surface. Our 30-50 micro-inch gold plating over nickel minimizes resistive losses and prevents oxidation that would degrade performance over time. This plating specification is critical for maintaining your system's long-term reliability.

Contact Us

Contact our SMA Female PCB Solder 18GHz's team at info@sipuconn.com for technical consultation, custom solutions, or to request samples for your next project.