High-Power RF & Microwave Components Wei Bo Associates HK / Wei Bo Associates
Global engineering catalog of high-power PIN diode RF switches MSW series, Always On RF limiters RFLM, high-voltage drivers RFD, and thin-film chip attenuators from Wei Bo Associates HK / Wei Bo Associates.
High-Power PIN Diode RF Switches Wei Bo Associates MSW (SP2T–SP6T)
High-power SMT PIN diode RF switches from Wei Bo Associates MSW2T, MSW3T, and MSW4T series operate from 20 MHz to 18 GHz. Devices deliver continuous wave handling up to +60 dBm and isolation over 40 dB. Modules serve radar subassemblies and communications.
- Operating frequency coverage from 20 MHz to 18 GHz with handling up to +62 dBm
- Symmetrical and asymmetrical switch topologies spanning SP2T through SP6T
- Low insertion loss below 0.5 dB and third-order intercept IP3 exceeding +65 dBm
- Ceramic and metal-can SMT packaging with gold-plated contact metallization
High-Power RF Limiters Wei Bo Associates RFLM Always On
Quasi-active and passive RF limiters from Wei Bo Associates RFLM series safeguard sensitive receiver stages from power pulses up to +60 dBm. Always On architecture ensures continuous protection when powered off. Units feature low loss under 0.5 dB and fast recovery.
- Peak input power handling up to +60 dBm with continuous CW rating of +50 dBm
- Always On autonomous receiver protection active even without DC bias voltage
- Minimal flat leakage power below +18 dBm and spike leakage under 0.5 ergs
- Rugged SMT surface mount packages (8x5 mm) and connectorized SMA housings
High-Voltage PIN Switch Drivers Wei Bo Associates RFD
High-voltage bias drivers from Wei Bo Associates RFD series are engineered to drive high-power PIN diode switches with reverse bias up to -200V. Devices feature standard TTL/CMOS logic with fast switching under 50 ns. Modules integrate into radar control loops.
- Reverse bias voltage generation up to -200V for high-power PIN diode biasing
- Direct compatibility with standard TTL and CMOS digital control interfaces
- High-speed transition and pulse switching time performance under 50 nanoseconds
- Optimized matching for multi-throw SP2T and SP3T high-power PIN assemblies
Integrated Switch-Limiter Modules Wei Bo Associates
Integrated switch-limiter modules from Wei Bo Associates combine PIN diode switching and receiver protection stages in a single compact SMT package. Devices eliminate inter-stage mismatch losses and conserve board area. Assemblies serve radar transceivers and secure communication hardware.
- Co-integration of high-speed multi-throw PIN switch and limiter stages
- Reduced total insertion loss and parasitic reactance across microwave bands
- Space-saving hermetic ceramic packaging optimized for compact planar routing
- Factory-matched inter-stage RF impedance between transmit and receive paths
Thin-Film Chip Attenuators Wei Bo Associates WBAT (1–20 dB)
Thin-film chip attenuators from Wei Bo Associates WBAT series are built on Aluminum Nitride AlN substrates with TaN resistive films. Devices operate up to 20 GHz covering 1 to 20 dB attenuation. Units serve power leveling, impedance matching, and microwave test bench calibration.
- Attenuation values from 1 to 20 dB in 1 dB steps covering DC to 20 GHz bandwidth
- High thermal conductivity Aluminum Nitride AlN substrates with TaN metallization
- Triple-layer TaN, TiW, and Au metallization supporting wire bonding or soldering
- Precise attenuation value tolerance maintained within plus-minus 0.4 dB across band
Quartz Spiral Inductors and MIS Chip Capacitors
RF passive components from Wei Bo Associates encompass high-Q quartz spiral inductors and silicon MIS chip capacitors. Components provide broadband decoupling and impedance matching for microwave bias tees. Assemblies withstand severe vibration and harsh environmental conditions.
- High-Q quartz spiral inductors engineered for microwave bias tee decoupling
- Silicon metal-insulator-silicon MIS capacitors with gold metallization finish
- High dielectric breakdown rating delivering dependable operation in bias circuits
- Broad capacitance coverage designed for precision high-frequency circuit tuning
Engineering Access to Wei Bo Associates MSW Switches and RFLM Limiters
SpareX assists international aerospace and commercial communication teams with direct engineering access to high-power RF and microwave semiconductor devices manufactured by Wei Bo Associates HK, Ltd. / Wei Bo Associates.
The portfolio covers MSW series PIN diode surface mount switches up to +62 dBm peak handling, autonomous Always On RFLM limiters, high-voltage RFD bias drivers, and thin-film Aluminum Nitride attenuators.
Screening, Quality Assurance, and Harsh Environment Compliance
All delivered Wei Bo Associates assemblies undergo rigorous quality verification including hermeticity testing, S-parameter compliance, and screening under extreme thermal cycling and shock profiles.
Extended test flows adhering to MIL-STD-883 and MIL-STD-202 specifications are available for mission-critical radar and aerospace applications to guarantee exceptional reliability.
Direct Replacement Solutions for Legacy Aeroflex and MACOM Components
Our engineering team supports international customers with cross-referencing and technical integration of Wei Bo Associates modules as direct form-fit-function replacements for discontinued microwave parts.
We supply Touchstone S-parameter files, layout integration guidelines, and technical consultation for microstrip impedance matching and thermal dissipation optimization.
Wei Bo Associates HK / Wei Bo Associates and model names are trademarks of their respective owners and are used only to identify the equipment for which we source parts. SpareX is not an official dealer, distributor or representative of Wei Bo Associates HK / Wei Bo Associates and is not affiliated with the trademark owner. Origin, documents and warranty are stated for each item in the quotation.
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Documents and sources
- Official Wei Bo Associates HK portal — high-power RF and microwave components
- High power PIN diode RF switches catalog — specifications and frequency bands
- High power RF limiters RFLM Always On series — technical parameters
- High voltage PIN switch drivers RFD series — bias and control architecture
- Thin-film fixed attenuator pads WBAT — aluminum nitride substrate ratings
- About Wei Bo Associates HK — manufacturing facility and ISO quality management
