SMA Male 1W Termination Load 18GHz

SMA Male 1W Termination Load 18GHz – Precision RF Termination Solution

The SIPU RF Technology SMA Male 1W Termination Load 18GHz (Model: SIPU-SMA-50JR) provides precise impedance matching to medium- and high-frequency RF systems. This termination load works from DC to 18GHz with a characteristic impedance of 50Ω and VSWR of ≤1.2 (≤1.05 optional) to minimise signal reflection. Rated for 1W continuous power and designed for more than 500 mating cycles, it has brass gold-plated conductors, PTFE dielectric and silicon rubber sealing. This male straight-configuration connection is designed for the rigorous needs of telecommunications, aerospace testing and laboratory calibration applications where a dependable RF termination is essential, working from -65℃ to +125℃ temperature range.

What Is an SMA Male 1W Termination Load 18GHz?

The product is a precision passive component that offers a precise 50-ohm termination to coaxial transmission cables. It acts as a dummy load , it absorbs RF energy and dissipates it as heat . It does not reflect any of the signal .

This component operates across DC to Ku-band (18GHz) frequencies. This solves the impedance mismatching problems in sensitive RF chains, protects precious active components from high VSWR damage, and removes signal leakage in unused ports of power dividers or directional couplers.

Proper termination reduces measurement mistakes and equipment damage for engineers working with vector network analysers or multi-port RF systems.

Technical Specifications

Key Technical Properties

The SMA Male 1W Termination Load 18GHz maintains exceptional electrical stability across its entire operational spectrum. Its 50-ohm impedance and VSWR typically below 1.20:1 ensure minimal return loss from DC to 18GHz.

The 1W designation indicates continuous wave power handling capacity, supported by a specialized resistive element with low thermal coefficient. Construction utilizes gold-plated brass for optimal conductivity and durability.

Manufactured according to MIL-STD-348 standards, the load operates reliably from -65°C to +125°C. This temperature range ensures performance consistency in extreme aerospace, defense, and laboratory environments.

Precision machining guarantees center pin alignment and thread accuracy. The PTFE dielectric maintains stable electrical properties under thermal stress, while silicon rubber sealing provides environmental protection.

Real-World Applications

Laboratory Research & VNA Calibration

Provides precise reference loads during vector network analyzer calibration. Ensures measurement accuracy in RF design validation and characterization testing.

Telecommunications & Satellite Systems

Terminates unused ports in multi-carrier power amplifiers and satellite transceivers. The 18GHz capability supports Ku-band signal integrity in ground station installations.

Defense and Radar Systems

Utilized in phased array radar modules and electronic warfare suites. Its compact form factor and reliable 1W power dissipation suit dense, high-vibration environments where low reflection is essential.

Test & Measurement Equipment

Essential for port termination in spectrum analyzers, signal generators, and RF switches. Prevents standing waves that compromise measurement accuracy.

Quality Control Standards

SIPU implements rigorous testing protocols for every SMA Male 1W Termination Load 18GHz. Each unit undergoes VSWR sweep testing across the full DC-18GHz range using calibrated vector network analyzers.

Power handling verification subjects loads to rated 1W power at elevated temperatures, checking for resistance drift. Plating thickness and adhesion testing ensure gold-plated surfaces meet specifications for corrosion resistance.

Mechanical tolerance inspection uses precision optical comparators to verify center pin alignment and thread accuracy. Environmental testing includes thermal shock cycling between temperature extremes to validate internal bond integrity.

Every batch receives RoHS environmental compliance testing. These comprehensive quality measures ensure consistent performance across production runs.

Packaging

Each product ships in protective anti-static packaging. Standard packaging includes individual component protection to prevent damage during transit and storage.

Frequently Asked Questions

Q1: Can this load handle peak power above 1W?

A:While rated for 1W continuous wave, short-duration pulses may be tolerated. However, exceeding average power rating causes thermal runaway and permanent resistor damage.

Q2: Is this load compatible with 3.5mm or 2.92mm connectors?

A:Yes, the SMA interface is mechanically compatible with 3.5mm and 2.92mm (K) connectors. System performance will be limited by the 18GHz rating of the termination load.

Q3: How does temperature affect VSWR performance?

A:High-quality loads utilize thin-film resistors with low thermal coefficients, ensuring VSWR stability. Power derating typically begins above 70°C for extended component life.

Q4: Does this termination require periodic recalibration?

A:For precision laboratory applications, annual VSWR and resistance verification is recommended to detect degradation from mechanical wear or electrical stress.

Q5: What's the difference between ≤1.2 and ≤1.05 VSWR specifications?

A:The ≤1.05 option provides tighter impedance matching for critical applications requiring minimal return loss, such as precision calibration standards.

Contact Us

Need technical specifications or custom termination solutions? Reach out to our SMA Male 1W Termination Load 18GHz's team at info@sipuconn.com for fast support and product recommendations.