Supplier for MRF136 in USA: Features, Specifications, Applications, and Sourcing Guide
Finding a dependable supplier for MRF136 in the USA is important for engineers and procurement teams working with RF power amplifiers, VHF communication equipment, industrial RF systems, and legacy electronic designs. The MRF136 is a high-performance RF power MOSFET originally associated with Motorola and now available through the MACOM RF semiconductor product portfolio. It is designed for wideband large-signal amplifier and oscillator applications extending up to 400 MHz.
For engineers repairing existing equipment or developing RF systems around proven device architectures, the MRF136 offers a combination of RF power capability, gain, thermal stability, and load-mismatch tolerance that makes it particularly useful in demanding RF applications.
MRF136 Product Overview
The MRF136 is an N-channel enhancement-mode RF power MOSFET designed for wideband large-signal amplification and oscillator applications. Manufacturer information specifies operation across a frequency range reaching 400 MHz, with a nominal test condition of 28 V. At 150 MHz and 28 V, the device is specified for approximately 15 W output power, with typical narrowband gain of 16 dB and typical efficiency of 60%.
The device has a rated drain-source voltage of 65 V and a continuous drain-current rating of approximately 2.5 A. Distributor technical data also identifies a typical test current of 25 mA and a 1 dB noise figure under the listed conditions.
The MRF136 uses the 211-07, Style 2 package, a ceramic flange-mounted package intended for RF power applications. The package provides a practical mechanical and thermal interface for power transistor circuits, where heat removal and low-inductance connections are important.
Key Features of MRF136
One of the most important characteristics of the MRF136 is its wide frequency capability. Rather than being optimized for a single narrow operating point, the device was designed for broadband RF power applications extending to 400 MHz. This makes it useful in VHF systems and other RF circuits where frequency flexibility is required.
The device's N-channel enhancement-mode MOSFET architecture provides several advantages for RF power designs. RF MOSFETs can offer relatively straightforward biasing and good thermal behavior compared with some traditional RF transistor technologies. The MRF136 is specifically described as having excellent thermal stability and being well suited for Class A operation.
Another notable feature is its load-mismatch capability. The manufacturer's technical documentation states that the device was tested for load mismatch at all phase angles with a 30:1 VSWR. This characteristic is valuable in RF transmitter designs because practical antenna systems and RF loads do not always maintain ideal impedance matching under every operating condition.
The MRF136 also supports techniques such as manual gain control, automatic level control (ALC), and modulation. These characteristics make it useful where RF output power needs to be managed dynamically rather than operated at a single fixed level.
MRF136 and the Related MRF136Y
When sourcing an MRF136, buyers should be careful not to confuse it with the closely related MRF136Y. Both devices belong to the same RF MOSFET family and are intended for similar broad application areas, but their power capabilities and package configurations differ.
The MRF136 is specified for approximately 15 W output power, while the MRF136Y is a higher-power version specified at approximately 30 W. Manufacturer information also lists different package configurations for the two devices.
Therefore, MRF136 and MRF136Y should not automatically be treated as interchangeable replacements. Engineers performing a repair should verify the original equipment documentation, electrical characteristics, mechanical dimensions, mounting arrangement, and RF matching network before substituting one device for another.
Applications of MRF136
VHF RF Power Amplifiers
One of the most natural applications for MRF136 is the VHF RF power amplifier. With operation extending to 400 MHz and specified performance at 150 MHz, the device is well suited to transmitter stages where a relatively low-power RF signal must be amplified to a higher output level.
A typical RF system may use an oscillator or low-level RF source to generate the desired signal, followed by one or more driver stages and finally a power amplifier. The MRF136 can serve in the power-amplification portion of such an architecture. Its gain allows the designer to achieve useful RF amplification without requiring an excessively complicated chain of driver stages.
The 15 W output capability is also appropriate for many laboratory, industrial, communication, and specialized transmitter applications. Engineers can use appropriate impedance-matching networks at the input and output to optimize performance for the intended frequency range.
Wideband Communication Equipment
The MRF136 can be useful in communication equipment that operates across portions of the VHF and UHF-adjacent spectrum. Wideband RF power devices are valuable when equipment must support more than one operating frequency or when the transmitter architecture needs flexibility.
In legacy communication equipment, a device such as the MRF136 may be part of an established RF amplifier design whose PCB layout, matching network, and thermal system have already been validated. Maintaining the original transistor can therefore be much easier than redesigning the entire RF output stage around a modern replacement.
This is especially relevant for maintenance organizations that support older two-way radio systems, specialized communication equipment, and industrial wireless infrastructure.
RF Oscillators
The MRF136 is also designed for large-signal oscillator applications. RF oscillators generate the fundamental RF energy used by transmitters, signal generators, frequency-conversion circuits, and other RF systems.
A power-capable RF transistor can be useful when an oscillator must deliver a relatively strong RF signal directly or when the oscillator stage forms part of a larger high-power RF architecture. The MRF136's frequency range and RF power capability provide flexibility for such circuit configurations.
Designers should pay particular attention to the oscillator's feedback network, bias conditions, stability, device dissipation, and output matching. RF oscillators can behave very differently from conventional low-frequency transistor circuits, so the complete RF network must be designed around the transistor's characteristics.
Aerospace and Defense Electronics
Manufacturer information identifies aerospace and defense among the application areas for the MRF136 family.
RF components used in aerospace and defense systems may be required to operate reliably under demanding environmental and electrical conditions. Power amplifiers can appear in communication systems, signal-generation equipment, telemetry equipment, and other RF subsystems.
For maintenance applications, component availability becomes particularly important because specialized systems can remain operational long after their original semiconductor supply chains have changed. An exact replacement such as MRF136 can help repair technicians preserve an established RF design without immediately redesigning the entire circuit.
Because these applications can involve stringent qualification requirements, however, engineers should verify the required source, traceability, environmental rating, and qualification status before using a commercially sourced component in a regulated or mission-critical system.
ISM and Industrial RF Equipment
The MRF136 is also identified for ISM applications, making it relevant to industrial, scientific, and medical RF equipment.
Industrial RF systems can include RF heating, specialized material processing, laboratory equipment, wireless instrumentation, and other systems where controlled RF energy is required. A power transistor in these applications must deliver predictable RF output while maintaining acceptable thermal performance.
The MRF136's thermal stability and RF power characteristics can make it attractive for such equipment, particularly when the operating frequency falls within its specified range.
Laboratory RF Test Equipment
RF signal generators, amplifiers, transmitters, and experimental test systems are another potential application area. Engineers developing or repairing laboratory equipment often require discrete RF power transistors that have established performance characteristics.
The MRF136 can be particularly useful in experimental RF amplifier designs because its specifications provide a practical starting point for selecting the supply voltage, expected output power, gain, and operating frequency.
Its relatively high load-mismatch tolerance can also be beneficial in laboratory environments, where RF loads may be changed frequently during testing. Nevertheless, appropriate protection, matching, heat sinking, and RF measurement procedures remain essential.
Legacy Equipment Repair and Maintenance
Perhaps one of the most important real-world applications for MRF136 today is repairing legacy RF equipment. Many older communication and industrial systems were designed around RF transistors that are no longer commonly stocked by general electronics distributors.
Replacing a failed transistor can be considerably more economical than replacing an entire RF module. For maintenance engineers, an exact MRF136 can preserve the original PCB layout and RF matching network, reducing the risk associated with redesigning a high-frequency circuit.
When repairing legacy hardware, buyers should compare the marking on the original device with the complete MRF136 part number and verify package style and manufacturer information. RF power transistors can be sensitive to mechanical mounting and thermal-interface conditions, so installation quality is as important as electrical compatibility.
Important Considerations When Buying MRF136
When looking for a supplier for MRF136 in the USA, buyers should verify the manufacturer, complete part number, package, electrical specifications, and product condition. The MRF136 is associated with the 211-07 package, while the related MRF136Y uses a different package and higher power rating.
Authenticity and traceability are also important for RF power devices. Buyers should distinguish between new original stock, excess inventory, refurbished parts, and used components. For production or critical repair work, product photographs, manufacturer markings, packaging information, and available documentation should be reviewed before purchase.
Thermal management should also be considered. The MRF136 is a power device, and the original design's heat-spreading, mounting, and RF grounding arrangements should be maintained as closely as possible.
Where to Buy MRF136 in the USA
For engineers and procurement professionals searching for MRF136 suppliers in the USA, Utsource offers an online sourcing platform for electronic components. Buyers can search the exact MRF136 part number, review current availability and product information, and select suitable purchasing options.
Because availability of RF power transistors can vary, it is useful to search by the complete manufacturer part number rather than a shortened description. Buyers can visit the Utsource website, enter MRF136 into the search function, review the available listing, and proceed with an inquiry or order according to current stock and purchasing requirements.
Conclusion
The MRF136 is an N-channel enhancement-mode RF power MOSFET designed for wideband large-signal amplifier and oscillator applications up to 400 MHz. Its 28 V test condition, 15 W output capability, typical 16 dB narrowband gain, and typical 60% efficiency at the specified 150 MHz operating point make it a useful device for a variety of RF designs.
Its applications extend across VHF power amplification, communication equipment, RF oscillators, aerospace and defense electronics, ISM systems, laboratory equipment, and legacy equipment repair. The MRF136's thermal stability, load-mismatch testing, and support for gain-control and modulation techniques further increase its usefulness in practical RF systems.
For customers searching for a supplier for MRF136 in USA, careful verification of the exact part number, package, authenticity, electrical specifications, and product condition is recommended. Utsource provides a convenient online channel for searching and sourcing MRF136 and other electronic components for engineering, maintenance, and procurement requirements.
MRF136:
https://www.utsource.net/itm/p/1542633.html Supplier for MRF136 in USA: Features, Specifications, Applications, and Sourcing Guide
Finding a dependable supplier for MRF136 in the USA is important for engineers and procurement teams working with RF power amplifiers, VHF communication equipment, industrial RF systems, and legacy electronic designs. The MRF136 is a high-performance RF power MOSFET originally associated with Motorola and now available through the MACOM RF semiconductor product portfolio. It is designed for wideband large-signal amplifier and oscillator applications extending up to 400 MHz.
For engineers repairing existing equipment or developing RF systems around proven device architectures, the MRF136 offers a combination of RF power capability, gain, thermal stability, and load-mismatch tolerance that makes it particularly useful in demanding RF applications.
MRF136 Product Overview
The MRF136 is an N-channel enhancement-mode RF power MOSFET designed for wideband large-signal amplification and oscillator applications. Manufacturer information specifies operation across a frequency range reaching 400 MHz, with a nominal test condition of 28 V. At 150 MHz and 28 V, the device is specified for approximately 15 W output power, with typical narrowband gain of 16 dB and typical efficiency of 60%.
The device has a rated drain-source voltage of 65 V and a continuous drain-current rating of approximately 2.5 A. Distributor technical data also identifies a typical test current of 25 mA and a 1 dB noise figure under the listed conditions.
The MRF136 uses the 211-07, Style 2 package, a ceramic flange-mounted package intended for RF power applications. The package provides a practical mechanical and thermal interface for power transistor circuits, where heat removal and low-inductance connections are important.
Key Features of MRF136
One of the most important characteristics of the MRF136 is its wide frequency capability. Rather than being optimized for a single narrow operating point, the device was designed for broadband RF power applications extending to 400 MHz. This makes it useful in VHF systems and other RF circuits where frequency flexibility is required.
The device's N-channel enhancement-mode MOSFET architecture provides several advantages for RF power designs. RF MOSFETs can offer relatively straightforward biasing and good thermal behavior compared with some traditional RF transistor technologies. The MRF136 is specifically described as having excellent thermal stability and being well suited for Class A operation.
Another notable feature is its load-mismatch capability. The manufacturer's technical documentation states that the device was tested for load mismatch at all phase angles with a 30:1 VSWR. This characteristic is valuable in RF transmitter designs because practical antenna systems and RF loads do not always maintain ideal impedance matching under every operating condition.
The MRF136 also supports techniques such as manual gain control, automatic level control (ALC), and modulation. These characteristics make it useful where RF output power needs to be managed dynamically rather than operated at a single fixed level.
MRF136 and the Related MRF136Y
When sourcing an MRF136, buyers should be careful not to confuse it with the closely related MRF136Y. Both devices belong to the same RF MOSFET family and are intended for similar broad application areas, but their power capabilities and package configurations differ.
The MRF136 is specified for approximately 15 W output power, while the MRF136Y is a higher-power version specified at approximately 30 W. Manufacturer information also lists different package configurations for the two devices.
Therefore, MRF136 and MRF136Y should not automatically be treated as interchangeable replacements. Engineers performing a repair should verify the original equipment documentation, electrical characteristics, mechanical dimensions, mounting arrangement, and RF matching network before substituting one device for another.
Applications of MRF136
VHF RF Power Amplifiers
One of the most natural applications for MRF136 is the VHF RF power amplifier. With operation extending to 400 MHz and specified performance at 150 MHz, the device is well suited to transmitter stages where a relatively low-power RF signal must be amplified to a higher output level.
A typical RF system may use an oscillator or low-level RF source to generate the desired signal, followed by one or more driver stages and finally a power amplifier. The MRF136 can serve in the power-amplification portion of such an architecture. Its gain allows the designer to achieve useful RF amplification without requiring an excessively complicated chain of driver stages.
The 15 W output capability is also appropriate for many laboratory, industrial, communication, and specialized transmitter applications. Engineers can use appropriate impedance-matching networks at the input and output to optimize performance for the intended frequency range.
Wideband Communication Equipment
The MRF136 can be useful in communication equipment that operates across portions of the VHF and UHF-adjacent spectrum. Wideband RF power devices are valuable when equipment must support more than one operating frequency or when the transmitter architecture needs flexibility.
In legacy communication equipment, a device such as the MRF136 may be part of an established RF amplifier design whose PCB layout, matching network, and thermal system have already been validated. Maintaining the original transistor can therefore be much easier than redesigning the entire RF output stage around a modern replacement.
This is especially relevant for maintenance organizations that support older two-way radio systems, specialized communication equipment, and industrial wireless infrastructure.
RF Oscillators
The MRF136 is also designed for large-signal oscillator applications. RF oscillators generate the fundamental RF energy used by transmitters, signal generators, frequency-conversion circuits, and other RF systems.
A power-capable RF transistor can be useful when an oscillator must deliver a relatively strong RF signal directly or when the oscillator stage forms part of a larger high-power RF architecture. The MRF136's frequency range and RF power capability provide flexibility for such circuit configurations.
Designers should pay particular attention to the oscillator's feedback network, bias conditions, stability, device dissipation, and output matching. RF oscillators can behave very differently from conventional low-frequency transistor circuits, so the complete RF network must be designed around the transistor's characteristics.
Aerospace and Defense Electronics
Manufacturer information identifies aerospace and defense among the application areas for the MRF136 family.
RF components used in aerospace and defense systems may be required to operate reliably under demanding environmental and electrical conditions. Power amplifiers can appear in communication systems, signal-generation equipment, telemetry equipment, and other RF subsystems.
For maintenance applications, component availability becomes particularly important because specialized systems can remain operational long after their original semiconductor supply chains have changed. An exact replacement such as MRF136 can help repair technicians preserve an established RF design without immediately redesigning the entire circuit.
Because these applications can involve stringent qualification requirements, however, engineers should verify the required source, traceability, environmental rating, and qualification status before using a commercially sourced component in a regulated or mission-critical system.
ISM and Industrial RF Equipment
The MRF136 is also identified for ISM applications, making it relevant to industrial, scientific, and medical RF equipment.
Industrial RF systems can include RF heating, specialized material processing, laboratory equipment, wireless instrumentation, and other systems where controlled RF energy is required. A power transistor in these applications must deliver predictable RF output while maintaining acceptable thermal performance.
The MRF136's thermal stability and RF power characteristics can make it attractive for such equipment, particularly when the operating frequency falls within its specified range.
Laboratory RF Test Equipment
RF signal generators, amplifiers, transmitters, and experimental test systems are another potential application area. Engineers developing or repairing laboratory equipment often require discrete RF power transistors that have established performance characteristics.
The MRF136 can be particularly useful in experimental RF amplifier designs because its specifications provide a practical starting point for selecting the supply voltage, expected output power, gain, and operating frequency.
Its relatively high load-mismatch tolerance can also be beneficial in laboratory environments, where RF loads may be changed frequently during testing. Nevertheless, appropriate protection, matching, heat sinking, and RF measurement procedures remain essential.
Legacy Equipment Repair and Maintenance
Perhaps one of the most important real-world applications for MRF136 today is repairing legacy RF equipment. Many older communication and industrial systems were designed around RF transistors that are no longer commonly stocked by general electronics distributors.
Replacing a failed transistor can be considerably more economical than replacing an entire RF module. For maintenance engineers, an exact MRF136 can preserve the original PCB layout and RF matching network, reducing the risk associated with redesigning a high-frequency circuit.
When repairing legacy hardware, buyers should compare the marking on the original device with the complete MRF136 part number and verify package style and manufacturer information. RF power transistors can be sensitive to mechanical mounting and thermal-interface conditions, so installation quality is as important as electrical compatibility.
Important Considerations When Buying MRF136
When looking for a supplier for MRF136 in the USA, buyers should verify the manufacturer, complete part number, package, electrical specifications, and product condition. The MRF136 is associated with the 211-07 package, while the related MRF136Y uses a different package and higher power rating.
Authenticity and traceability are also important for RF power devices. Buyers should distinguish between new original stock, excess inventory, refurbished parts, and used components. For production or critical repair work, product photographs, manufacturer markings, packaging information, and available documentation should be reviewed before purchase.
Thermal management should also be considered. The MRF136 is a power device, and the original design's heat-spreading, mounting, and RF grounding arrangements should be maintained as closely as possible.
Where to Buy MRF136 in the USA
For engineers and procurement professionals searching for MRF136 suppliers in the USA, Utsource offers an online sourcing platform for electronic components. Buyers can search the exact MRF136 part number, review current availability and product information, and select suitable purchasing options.
Because availability of RF power transistors can vary, it is useful to search by the complete manufacturer part number rather than a shortened description. Buyers can visit the Utsource website, enter MRF136 into the search function, review the available listing, and proceed with an inquiry or order according to current stock and purchasing requirements.
Conclusion
The MRF136 is an N-channel enhancement-mode RF power MOSFET designed for wideband large-signal amplifier and oscillator applications up to 400 MHz. Its 28 V test condition, 15 W output capability, typical 16 dB narrowband gain, and typical 60% efficiency at the specified 150 MHz operating point make it a useful device for a variety of RF designs.
Its applications extend across VHF power amplification, communication equipment, RF oscillators, aerospace and defense electronics, ISM systems, laboratory equipment, and legacy equipment repair. The MRF136's thermal stability, load-mismatch testing, and support for gain-control and modulation techniques further increase its usefulness in practical RF systems.
For customers searching for a supplier for MRF136 in USA, careful verification of the exact part number, package, authenticity, electrical specifications, and product condition is recommended. Utsource provides a convenient online channel for searching and sourcing MRF136 and other electronic components for engineering, maintenance, and procurement requirements.
MRF136:https://www.utsource.net/itm/p/1542633.html