GHM Microelectronics limited - Main Brands

Advanced Semiconductor, Inc. (ASI) manufactures RF power transistors and microwave diodes. We are an ISO 9001 registered company and specialize in manufacturing obsolete and hard-to-find components for both replacement purposes and new designs. Our line of RF power transistors primarily replaces those from Motorola, Philips, and SGS Thomson. Our line of microwave diodes primarily replaces those from HP, M/A-COM, Alpha, and Loral/Frequency sources.

Advanced Semiconductor, Inc., was founded in 1979, and has offices in the United Kingdom, France, India, and Egypt. Our customers run the gamut from governments and major corporations to medium and small businesses located throughout the world. Advanced Semiconductor has a fundamental commitment to customer service and will always do our best to ensure that your needs are met.

Our business model is designed around saving other companies time and money and providing them with additional options. Our specialization in RF Power Transistors and Microwave Diodes allows us to provide the following key benefits:

• For companies facing a last time buy, it can be a challenge to determine the best course of action. ASI solves this problem by continuing to manufacture the component so you only purchase what you need. No more costly last time buys, stocking more inventory than you need, or application redesign due to obsolete components. The savings and flexibility can be tremendous.
• For companies looking for hard-to-find or obsolete parts, we offer a steady and reliable source of high quality components. You also get newly manufactured product and don't have to worry about how long a part has been sitting in inventory or if it has been mishandled.

Advanced Semiconductor's product line includes bipolar, enhancement mode FET, and LDMOS FET devices covering the 1.0 MHz to 4.2 GHz frequency spectrum, with output power up to 300 Watts. Transistors are available in a variety of hermetic and non-hermetic packages including balanced configurations. Many designs feature internal impedance matching networks for enhanced performance.

RF Power Transistors Advanced Semiconductor, Inc. manufactures a line of RF power transistors which replace those from Motorola, Philips, and SGS Thomson   Microwave Diodes Advanced Semiconductor, Inc. manufactures a line of microwave diodes which replace those from HP, M/A-COM, Alpha, and Loral/Frequency sources.
	Microwave Diodes Advanced Semiconductor, Inc. manufactures a line of microwave diodes which replace those from HP, M/A-COM, Alpha, and Loral/Frequency sources.
	Microwave Diodes Advanced Semiconductor, Inc. manufactures a line of microwave diodes which replace those from HP, M/A-COM, Alpha, and Loral/Frequency sources.

BROADCAST APPLICATIONS FM BROADCAST: Single ended and balanced transistors for common emitter class C operation from 88 to 108 MHz. Devices from 1 to 250 Watts CW with Vcc of 28 and 50 VDC. UHF TV BROADCAST: Single ended and balanced transistors for common emitter class A and AB operation from 470 to 860 MHz. Devices from 0.5 to 150 Watts P(SYNC) with Vccof 28 to 28 VDC. VHF TV BROADCAST: Single ended and balanced transistors for common emitter class A and AB operation from 54 to 225 MHz. Devices from 0.5 to 250 Watts P(SYNC) with Vccof 28 to 32 VDC. POWER MODULES: FM Broadcast Applications: 88 - 108 MHz Bandwidth, with designs up to 300 Watts. VHF TV Applications: 54 - 88 MHz & 174 - 225 MHz, with Class A & AB Designs to 250 Watts PK Sync. UHF TV Applications: 470 - 860 MHz, with Class A & AB Designs to 50 Watts PK Sync.

COMMUNICATIONS APPLICATIONS HF COMMUNICATIONS: Single ended transistors for common emitter class AB operation from 2 - 30 MHz. Devices from 10 to 250 Watts PEP with Vcc of 12.5, 28.0 and 50 VDC for mobile and fixed AM/SSB applications. VHF COMMUNICATIONS: Single ended and balanced transistors for common emitter class C operation from 50 - 175 MHz. Devices from 1 to 150 Watts CW with Vcc of 12.5, 28.0 and 50 VDC for AM/FM mobile and fixed applications. UHF COMMUNICATIONS: Single ended and balanced transistors for common emitter class C operation from 450 - 512 MHz. Devices from 1 to 45 Watts CW with Vcc of 12.5 VDC for FM mobile radio applications. * Single ended and balanced transistors for common base class C operation from 806 to 960 MHz. Devices from 1 to 60 Watts CW with Vcc of 24 VDC for FM base station applications. * Single ended and balanced transistors for common emitter class AB operation from 860 to 960 MHz. Devices from 1 to 150 Watts PEP with Vcc of 24 VDC for linear cellular base station applications. MICROWAVE COMMUNICATIONS: Single-ended transistors for common base class C operation from 1.4 - 2.7 GHz. Devices from 1 to 18 Watts CW with Vcc of 20 and 24 VDC for FM microwave links.

MILITARY APPLICATIONS AVIONICS: Single ended and balanced transistors for common base class C operation from 960 - 1215 MHz. Devices from 1 to 600 Watts Pulsed with Vcc of 28.0 to 50 VDC for DME, IFF and TACAN applications. COMMUNICATIONS: Single ended and balanced transistors for common emitter class A, AB and C operation from 100 - 500 MHz. Devices from 1 to 125 Watts CW with Vcc of 28.0 VDC for aircraft, mobile and fixed applications. RADAR: Single ended and balanced transistors for common base class C operation from 400 - 3100 MHz. Devices from 1 to 500 Watts Pulsed with Vcc of 28.0 and 50 VDC for UHF, L and S band Pulsed Radar applications.