Polyfet RF Devices
Polyfet RF Devices is a privately held Camarillo, California manufacturer of broadband RF power transistors and amplifier modules, built on proprietary VDMOS, LDMOS, and GaN technology. Founded in 1984 by SK Leong, the company serves military, commercial, and broadcast customers globally via direct sales and regional representatives.
- Company typePrivate
- Founded1988
- HeadquartersCamarillo, United States
- Headcount11–50
- GTM typeB2B
- OfferingHardware or Manufacturing
What Polyfet RF Devices does
Polyfet RF Devices is a privately held manufacturer of broadband RF power transistors and amplifier modules headquartered in Camarillo, California. The company designs and produces devices based on three core semiconductor technologies: vertically double-diffused MOS (VDMOS), laterally diffused MOS (LDMOS), and Gallium Nitride on silicon carbide HEMT (GaN-on-SiC), covering frequencies from 600 kHz to 3 GHz and power levels from 1 W to 2 kW. Polyfet also offers internally matched amplifier modules and a TB series of evaluation amplifiers that ship with full design documentation (BOM, schematic, PCB layout) for customer reference. Founded by SK Leong in 1984 as Polycore RF and renamed Polyfet RF Devices in 1989, the company has operated from Southern California for over 40 years under continuous founder ownership, with no external funding or institutional investors identified in the available data.
The product portfolio targets three primary verticals: military and defense (communications, radar, electronic warfare, military radio), commercial and industrial (telecommunications infrastructure, RF heating, scientific instruments), and broadcast (FM radio, television transmission, point-to-point links). Manufacturing is qualified under ISO9001 (since 2016), with process compliance to applicable portions of MIL-PRF-19500 and test methods of MIL-STD-750 applied when customer specifications require, supporting stated operational KPIs of minimum 95% production yield, 95% on-time delivery, and less than 0.1% quality returns.
Polyfet runs a direct, enterprise sales motion with regional sales representatives covering the Americas and international markets, supported by a website-based quote request workflow. Pricing is custom and quote-based, with written quotations valid for 30 days and standard NET 30 payment terms. The company positions itself as a long-life-cycle supplier, with a cross-reference tool that maps its parts to discontinued devices from Macom, NXP/Ampleon, Point Nine, and Semelab.
Polyfet RF Devices firmographics
Firmographics- Name
- Polyfet RF Devices
- Legal name
- Polyfet RF Devices Inc.
- Website
- https://polyfet.com
- Company type
- Private
- Founded year
- 1988
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Polyfet RF Devices is a privately held Camarillo, California manufacturer of broadband RF power transistors and amplifier modules, built on proprietary VDMOS, LDMOS, and GaN technology. Founded in 1984 by SK Leong, the company serves military, commercial, and broadcast customers globally via direct sales and regional representatives.
- Ownership category
- akta.pro rank
Polyfet RF Devices industry classification
Industry- Product category
- RF Power Semiconductors
- NAICS
- Semiconductor and Related Device Manufacturing (334413), Semiconductor and Other Electronic Component Manufacturing (3344)
- SIC
- Semiconductors & Related Devices (3674)
- akta.pro primary industry
- Power Modules (IGBT/MOSFET/SiC/GaN Modules) (HDAHAHAH)
- akta.pro secondary industry
- Wide-Bandgap Power Devices (SiC/GaN Discretes) (HDAHAHAG)
Keywords
Where Polyfet RF Devices is headquartered
LocationHeadquarters
- HQ city
- Camarillo
- HQ country
- United States
- HQ region
- North America
Offices1 record
Markets served
Polyfet RF Devices business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Supply Chain, Operations, Personnel, Technology or R&D
Revenue model
- RF Power Transistors: Sale of discrete VDMOS, LDMOS, and GaN RF power transistors for military, commercial, and broadcast applications. Products range from 1W to 2kW power output.
- RF Power Amplifier Modules: Sale of packaged amplifier modules that provide drop-in solutions for amplifier systems, internally matched to 50-ohm impedances.
- Evaluation Amplifiers (TB Series): Working amplifier products that demonstrate transistor performance. Available as reference designs with BOM, schematic, and PCB layout documentation. Can be borrowed or copied by customers.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Unit Pricing | Multi-year contract | Custom quotation-based pricing |
Go-to-market motion1 record
Distribution channels3 records
Marketing channels4 records
Polyfet RF Devices product offering
Product offeringCore offering
Polyfet RF Devices designs and manufactures broadband RF power transistors and RF power amplifier modules based on VDMOS, LDMOS, and GaN semiconductor technologies. Products cover frequencies from 600kHz to 3GHz, voltage ranges of 7.5–50 VDC, and power levels from 1W to 2kW for military, commercial, and broadcast applications. The company also offers evaluation amplifier reference designs with full documentation to support customer development.
Product overview
Polyfet RF Devices is a manufacturer of high-performance RF power transistors and amplifier modules, operating as a single-product portfolio company with complementary support tools. The core offerings consist of three transistor technology lines (VDMOS, LDMOS, and GaN RF power transistors) spanning frequencies from 600kHz to 3GHz and power levels from 1W to 2kW, complemented by internally-matched RF Power Amplifier Modules and a series of Evaluation Amplifiers (TB boards) that provide working amplifier designs with full documentation for customer evaluation and design reference. Supporting resources include a cross-reference tool for competitive part replacement, transistor package specifications, and module case documentation. The company serves military, commercial, and broadcast applications with a focus on long product life cycles since 1988.
Differentiator
Problem solved
Functional benefit
Products and services
- RF Power Transistors High-performance VDMOS, LDMOS, and GaN RF power transistors spanning 600kHz to 3GHz, 7.5–50 VDC, and 1W to 2kW for military, commercial, and broadcast applications.
- VDMOS Transistors Vertically Double Diffused Metal Oxide Semiconductor transistors usable up to 1 GHz, 400W, across 12.5–50 VDC, used for legacy support and HF/VHF applications.
- LDMOS Transistors Laterally Diffused Metal Oxide Semiconductor transistors usable up to 1.5 GHz, 2 kW, across 5–50 VDC, offering 6–9 dB more gain than VDMOS counterparts.
- GaN Transistors Gallium Nitride HEMT transistors on SiC substrate usable up to 3 GHz, 160W, across 24–48 VDC, delivering roughly 10% higher efficiency than equivalently powered LDMOS in broadband amplifiers.
- RF Power Amplifier Modules Internally matched 50-ohm RF amplifier modules usable up to 1260 MHz, 300W, across 12.5–50 VDC, providing drop-in solutions for amplifier systems with external Vds and Vagc pins for bias control.
- Evaluation Amplifiers (TB Series) Fully functional working amplifier boards that demonstrate real-world transistor performance, supplied with BOM, schematic, and PCB layout documentation for customer reference and design copy.
Quantifiable outcome
- 95% minimum production yield
- +4 more outcomes
Companies that use Polyfet RF Devices
Customer profileSegments3 records
Ideal customer profiles3 records
Polyfet RF Devices technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature5 records
Polyfet RF Devices partnerships and signals
Strategic signalPartnerships
One partnership is on record.
- MacomminorPolyfet transistors are qualified as direct replacements for Macom devices (MRF series, LF series, UF series). Cross-reference compatibility documented for multiple part numbers including MRF5015, MRF141, MRF175GU, MRF177, MRF183, MRF184, MRF151, MRF166, MRF171, MRF172, MRF173, MRF174, and others.
Scale indicators6 records
Recent moves7 records
Expansion highlights4 records
Polyfet RF Devices competitors and assessment
Company assessmentDirect peers
- Ampleon: Ampleon (spun out of NXP's RF Power business) is a leading supplier of LDMOS RF power transistors for broadcast, industrial, and defense applications. Directly competes with Polyfet's LDMOS line and is also a cross-reference target.
- MACOM Technology Solutions: MACOM is a major RF, microwave, and semiconductor company producing RF power transistors (including the MRF series that Polyfet cross-references) and amplifier modules for defense, broadcast, and commercial wireless. Directly competes with Polyfet in LDMOS and VDMOS RF power transistors.
- Integra Technologies: Integra Technologies designs and manufactures high-power RF transistors, pallets, and amplifier modules primarily for defense and broadcast applications. Closely comparable in scale, customer mix, and product offering to Polyfet.
- Wolfspeed: Wolfspeed is a pure-play SiC and GaN-on-SiC RF power device supplier serving defense radar, electronic warfare, and telecom. Directly comparable to Polyfet's GaN HEMT on SiC offering, though at significantly larger scale.
- Semelab: Semelab manufactures RF power transistors and hybrid modules for defense, aerospace, and industrial markets. Polyfet cross-references Semelab parts, indicating overlapping product portfolios and customer base in legacy RF power discrete devices.
Broad incumbents
- STMicroelectronics: STMicroelectronics is a broad semiconductor incumbent offering RF power transistors (LDMOS) for industrial and broadcast applications. Competes with Polyfet in select industrial/commercial sockets but does not focus on the defense niche.
- Qorvo: Qorvo is a broad RF semiconductor incumbent offering GaN-on-SiC, LDMOS, and integrated RF solutions across defense, commercial wireless, and infrastructure. Larger and broader portfolio than Polyfet, but competes on GaN power devices and amplifier modules.
- Microchip Technology (Microsemi): Microchip, via its Microsemi acquisition, supplies RF power transistors and discrete semiconductors for defense and aerospace. Competes with Polyfet in MIL-spec RF power discrete devices and amplifier modules.
- Mitsubishi Electric: Mitsubishi Electric manufactures high-power RF semiconductor devices and modules for industrial, scientific, and broadcast applications, including LDMOS and SiC-based RF power transistors that overlap with Polyfet's portfolio.
Emerging players
- RFHIC: RFHIC is a GaN HEMT specialist producing RF power transistors and amplifier modules for defense, wireless infrastructure, and industrial heating. Directly comparable to Polyfet's GaN-on-SiC portfolio with overlapping frequency and power ranges.
Market position
Strengths4 records
Weaknesses4 records
Competitive moat5 records
Key risks5 records
Key highlights6 records
Customer concentration
Polyfet RF Devices social profiles
Digital presencePolyfet RF Devices compliance and trust
Trust signalCompliance3 records
Polyfet RF Devices financial estimates
Financial estimateRevenue estimate
Valuation estimate
Polyfet RF Devices leadership team
Management profileNumber of profiles
Profiles1 record
Polyfet RF Devices funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Polyfet RF Devices M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Polyfet RF Devices
What does Polyfet RF Devices do?
Polyfet RF Devices designs and manufactures broadband RF power transistors and RF power amplifier modules based on VDMOS, LDMOS, and GaN semiconductor technologies. Products cover frequencies from 600kHz to 3GHz, voltage ranges of 7.5–50 VDC, and power levels from 1W to 2kW for military, commercial, and broadcast applications. The company also offers evaluation amplifier reference designs with full documentation to support customer development.
Is Polyfet RF Devices a public or private company?
Polyfet RF Devices is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was Polyfet RF Devices founded?
Polyfet RF Devices was founded in 1988. It employs 11 to 50 people.
Where is Polyfet RF Devices based?
Polyfet RF Devices is headquartered in Camarillo, United States, in the North America region.
How does Polyfet RF Devices make money?
Three revenue lines are on record. RF Power Transistors are the primary driver. The others are RF Power Amplifier Modules and evaluation Amplifiers (TB Series).
Who are Polyfet RF Devices's main competitors?
Direct peers on record are Ampleon, MACOM Technology Solutions, Integra Technologies, Wolfspeed and Semelab. Broad incumbents are STMicroelectronics, Qorvo, Microchip Technology (Microsemi) and Mitsubishi Electric. RFHIC is listed as an emerging player.
Does Polyfet RF Devices have an API?
No public API is recorded for Polyfet RF Devices.
What industry is Polyfet RF Devices in?
Polyfet RF Devices's product category is RF Power Semiconductors. Its primary akta.pro industry code is HDAHAHAH, Power Modules (IGBT/MOSFET/SiC/GaN Modules), with a secondary code of HDAHAHAG, Wide-Bandgap Power Devices (SiC/GaN Discretes). Its NAICS code is 334413 and its SIC code is 3674.