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FHX35LG

Super Low Noise HEMT

Eudyna Devices Inc 

FHX35LG

FEATURES

• Low Noise Figure: 1.2B (Typ.)@f=12GHz

• High Associated Gain: 10.0dB (Typ.)@f=12GHz

• Lg ≤ 0.25µm, Wg = 280µm

• Gold Gate Metallization for High Reliability

• Cost Effective Ceramic Microstrip (SMT) Package

• Tape and Reel Packaging Available

Super Low Noise HEMT

DESCRIPTION

The FHX35LG is a High Electron Mobility Transistor(HEMT) intended for

general purpose, low noise and high gain amplifiers in the 2-18GHz

frequency range. This device is packaged in cost effective, low parasitic,

hermetically sealed(LG) or epoxy-sealed(LP) metal-ceramic packages for

high volume telecommunication, DBS, TVRO, VSAT or other low noise

applications.

Eudyna stringent Quality Assurance Program assures the highest

reliability and consistent performance.

ABSOLUTE MAXIMUM RATING (Ambient Temperature Ta=25°C)

Item

Symbol

Rating

Drain-Source Voltage

VDS

4.0

Gate-Source Voltage

VGS

-3.0

Total Power Dissipation

Pt*

290

Storage Temperature

Tstg

-65 to +175

Channel Temperature

Tch

175

*Note: Mounted on Al2O3 board (30 x 30 x 0.65mm)

Eudyna recommends the following conditions for the reliable operation of GaAs FETs:

1. The drain-source operating voltage (VDS) should not exceed 3 volts.

2. The forward and reverse gate currents should not exceed 0.2 and -0.075 mA respectively with

gate resistance of 4000Ω.

3. The operating channel temperature (Tch) should not exceed 80°C.

Unit

V

V

mW

°C

°C

ELECTRICAL CHARACTERISTICS (Ambient Temperature Ta=25°C)

Item

Symbol

Test Conditions

Saturated Drain Current

Transconductance

Pinch-off Voltage

Gate Source Breakdown Voltage

Noise Figure

Associated Gain

IDSS

gm

Vp

VGSO

NF

Gas

Thermal Resistance

Rth

AVAILABLE CASE STYLES: LG

Note: RF parameters are measured on a sample basis as follows:

VDS = 2V, VGS = 0V

VDS = 2V, IDS = 10mA

VDS = 2V, IDS = 1mA

IGS = -10µA

VDS = 3V, IDS = 10mA

f = 12GHz

Channel to Case

Min.

15

40

-0.2

-3.0

-

8.5

-

Limit

Typ.

40

60

-1.0

-

Max.

85

-

-2.0

-

1.2 1.6

10.0 -

220 300

Lot qty.

1200 or less

1201 to 3200

3201 to 10000

10001 or over

Sample qty.

125

200

315

500

Accept/Reject

(0,1)

(0,1)

(1,2)

(1,2)

Unit

mA

mS

V

V

dB

dB

°C/W

Edition 1.1

July 1999

1

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