SMA Diode Limiters – Pin-Pin & Pin-Schottky, 1W CW, Up to 200W Peak
High-Performance RF Limiters for 0.5 to 18 GHz Applications
Bracke’s SMA Diode Limiters, available in both Pin-Pin and Pin-Schottky configurations, provide reliable RF signal protection for sensitive receiver components across a wide range of frequencies. Built with passivated stainless steel or gold-plated connectors, these limiters are designed to handle up to 1 Watt CW power and peak powers of up to 200 Watts. With low VSWR ratings and frequency coverage from 0.5 GHz to 18 GHz, they deliver consistent performance in commercial, military, and laboratory applications. Whether you need fast response time from a Schottky diode or rugged durability from a Pin-Pin configuration, these SMA limiters offer dependable protection while maintaining signal integrity in demanding RF environments.
Our SMA Pin-to-Pin Diode Limiters with 1 Watt CW power handling and up to 200 Watts peak power capability are designed for reliable RF signal protection across a wide range of frequencies. Available in both passivated stainless steel and gold-plated finishes, these limiters offer low VSWR and consistent performance from 0.5 GHz to 18 GHz. They help safeguard sensitive receiver components from high-power signal spikes while maintaining signal integrity. Ideal for commercial, military, and test applications requiring rugged, high-frequency performance, these diode limiters deliver dependable results in demanding RF environments.
Bracke’s SMA Pin-to-Schottky Diode Limiters are built for precision RF signal protection, combining the fast response of Schottky diodes with robust SMA connectors in a passivated stainless steel housing. Rated for 1 Watt CW power and up to 200 Watts peak, these limiters offer dependable performance across frequency ranges from 0.5 GHz to 18 GHz. With low VSWR and high peak power handling, they are ideal for protecting sensitive RF components from high-power transients while maintaining signal integrity. Suitable for commercial, military, and laboratory test environments, these limiters provide consistent results in demanding applications.
Complete Your RF System with RF SMA Diode Limiters from Bracke Manufacturing
Whether protecting sensitive components, managing high-power transients, or ensuring signal integrity in RF systems, Bracke Manufacturing’s SMA Diode Limiters deliver the performance and durability your application requires. Offering robust SMA connectors, low VSWR, and wide frequency coverage, our limiters are built for reliable operation in demanding environments. Explore our in-stock models today or contact us for custom-engineered solutions.
Beyond SMA Diode Limiters, explore our full line of RF and microwave solutions—from Directional Couplers and Bias Tees to Terminations, Attenuators, Cable Assemblies, RF Adapters, and RF Test Accessories—to keep your systems running at peak performance.
SMA Diode Limiters – Frequently Asked Questions
Q1: What is the difference between Pin-Pin and Pin-Schottky diode limiters?
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Pin-Pin Limiters use two PIN diodes to handle higher average and peak powers, offering robust performance and longevity.
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Pin-Schottky Limiters combine a PIN diode with a Schottky diode for faster response times, making them ideal when both speed and protection are critical.
Q2: What power levels do these limiters support?
All Bracke SMA diode limiters are rated for 1 Watt CW and up to 200 Watts peak (some models up to 100 W peak), making them suitable for both lab and field RF protection.
Q3: What frequency ranges are available?
Models cover a wide selection of bands from 0.5 GHz to 18 GHz, allowing you to match a limiter to your system’s specific frequency range for optimal performance and VSWR.
Q4: How does VSWR performance vary?
VSWR values range from 1.40:1 to 2.5:1 depending on frequency range and construction. Lower VSWR ensures minimal signal reflection and better overall system efficiency.
Q5: What housing materials are used?
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Passivated Stainless Steel – corrosion-resistant, rugged for demanding environments.
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Gold Plated – provides enhanced conductivity and corrosion resistance for high-frequency applications.
Q6: How do I choose the right model for my application?
Consider these factors:
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Frequency Range – Match the limiter’s band to your system’s operating frequency.
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Connector Type – All models here use SMA connectors for compact, high-frequency compatibility.
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VSWR Requirements – Choose lower VSWR for more sensitive systems.
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Power Handling – Ensure the limiter meets your CW and peak power needs.
Q7: Where are SMA diode limiters used?
Common applications include:
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Receiver front-end protection
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Radar and electronic warfare systems
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Test and measurement setups
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Communication systems
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Transmitter/receiver switching protection
Other Bracke Products Commonly Used with SMA Diode Limiters
To build a complete and reliable RF signal chain, SMA diode limiters are often paired with these Bracke Manufacturing products:
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RF Detectors – For measuring and monitoring signal power after the limiter stage.
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Bias Tees – To inject DC bias into RF circuits without interrupting the signal path.
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Fixed Attenuators – For reducing signal amplitude to protect downstream components or match system levels.
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Directional Couplers – For sampling signals for monitoring or test without disrupting the main path.
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Terminations (Loads) – To safely absorb unused RF energy in test setups or system ports.
By combining these components, engineers can protect, measure, and optimize RF systems for both lab and field applications.
When you choose Bracke Manufacturing for your SMA Diode Limiters, you’re partnering with a trusted leader in RF and microwave innovation. Led by industry veteran Lawrence Pasternack, Bracke is committed to delivering dependable, in-stock solutions with competitive pricing and fast turnaround times. Our SMA Diode Limiters—along with adapters, attenuators, cable assemblies, terminations, and more—are in stock and ready to ship.
Have questions or need help selecting the right component? Contact our team at (949) 756-1600 or email sales@brackemfg.com.
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