ART1K9FH 1900W 1–500MHz LDMOS RF power transistor
Mfr. Part #: ART1K9FH
Manufacturer: Ampleon
Product Category: RF Power Transistor
Package / Case: SOT539A / ACC-1230 Flanged Balanced Ceramic Package
Description: 1900W unmatched rugged LDMOS RF power transistor designed for 1–500MHz industrial, scientific, medical, broadcast and non-cellular communication applications.
The Ampleon ART1K9FH is a high-power LDMOS RF transistor based on Ampleon’s Advanced Rugged Technology platform. It is designed for broadband operation from 1MHz to 500MHz and can deliver up to 1900W pulsed RF output power when operated from a 55V drain supply.
The transistor is intended for demanding industrial, scientific, medical, broadcast and communication systems where high RF power, efficiency and resistance to severe load mismatch are required. Its unmatched architecture allows designers to develop application-specific input and output matching networks for different frequencies and amplifier configurations.
ART1K9FH Specifications
| Parameter | Specification |
| Manufacturer | Ampleon |
| Part Number | ART1K9FH |
| Orderable Part Number | ART1K9FHU |
| Device Type | Rugged LDMOS RF power transistor |
| Frequency Range | 1–500MHz |
| Maximum Published Output Power | 1900W pulsed |
| Supported Drain Voltage | 50V and 55V |
| Characterised Voltage Range | 30–55V |
| Typical Power Gain | 24.6dB |
| Minimum Power Gain | 23.5dB |
| Typical Drain Efficiency | 72.50% |
| Minimum Drain Efficiency | 68% |
| Typical Input Return Loss | −19dB |
| Minimum Breakdown Voltage | 177V |
| Typical Thermal Resistance | 0.071K/W |
| Package | ACC-1230 / SOT539A |
Typical RF Performance
| Frequency | Drain Voltage | Output Power | Power Gain | Drain Efficiency |
| 108MHz | 50V | 1700W | 27.7dB | 74.70% |
| 225MHz | 55V | 1900W | 25.0dB | 75.00% |
Typical Applications
The ART1K9FH can be used in:
Industrial plasma generators
MRI RF power amplifiers
CO₂ laser drivers
Particle accelerators
Industrial RF heating systems
Medical RF equipment
Scientific RF generators
FM radio transmitters
VHF television transmitters
Non-cellular communication equipment
UHF radar systems
Broadband solid-state power amplifiers
Ampleon officially identifies ISM, broadcast and non-cellular communication systems as the main application groups for the device.
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Contact DataStorageIC for current ART1K9FH pricing, availability and delivery lead time.
FAQ
What is the frequency range of the ART1K9FH?
The ART1K9FH is designed for broadband operation from 1MHz to 500MHz.
What is the maximum output power?
Ampleon specifies up to 1900W pulsed output power at 225MHz with a 55V drain supply. At 50V, published application data shows approximately 1700W output.
Can the ART1K9FH operate at both 50V and 55V?
Yes. The transistor is suitable for 50V and 55V operation and is characterised across a wider drain-voltage range from 30V to 55V.
Is the ART1K9FH internally matched?
No. It is an unmatched RF power transistor. External input and output matching networks must be designed for the intended frequency and amplifier configuration.
How rugged is the ART1K9FH?
Under the manufacturer’s specified pulsed Class-AB conditions, it can withstand a mismatch corresponding to VSWR ≥65:1 through all phases without degradation.
What is the orderable part number?
The orderable part number is ART1K9FHU, supplied in the SOT539A flanged ceramic package.
