YES RF Small Signal Field Effect Transistors (FET) 1,826

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Part RoHS Manufacturer Polarity or Channel Type Configuration Surface Mount Maximum Power Dissipation (Abs) Package Body Material Transistor Application Minimum DS Breakdown Voltage Minimum Power Gain (Gp) Terminal Form Package Shape Operating Mode No. of Elements Highest Frequency Band Maximum Drain Current (Abs) (ID) No. of Terminals Package Style (Meter) Sub-Category Field Effect Transistor Technology Maximum Power Dissipation Ambient Maximum Operating Temperature Transistor Element Material Minimum Operating Temperature Terminal Finish Maximum Drain Current (ID) Terminal Position JESD-30 Code Moisture Sensitivity Level (MSL) Case Connection Qualification Additional Features JEDEC-95 Code JESD-609 Code Maximum Time At Peak Reflow Temperature (s) Peak Reflow Temperature (C) Maximum Feedback Capacitance (Crss) Reference Standard

BF990A-T

NXP Semiconductors

N-CHANNEL

SINGLE WITH BUILT-IN DIODE

YES

PLASTIC/EPOXY

AMPLIFIER

18 V

GULL WING

RECTANGULAR

DUAL GATE, DEPLETION MODE

1

ULTRA HIGH FREQUENCY BAND

4

SMALL OUTLINE

METAL-OXIDE SEMICONDUCTOR

150 Cel

SILICON

.03 A

DUAL

R-PDSO-G4

SOURCE

Not Qualified

BF991,215

NXP Semiconductors

N-CHANNEL

SINGLE WITH BUILT-IN DIODE

YES

.2 W

PLASTIC/EPOXY

AMPLIFIER

20 V

GULL WING

RECTANGULAR

DUAL GATE, DEPLETION MODE

1

VERY HIGH FREQUENCY BAND

.02 A

4

SMALL OUTLINE

FET General Purpose Power

METAL-OXIDE SEMICONDUCTOR

150 Cel

SILICON

TIN

.02 A

DUAL

R-PDSO-G4

1

SOURCE

Not Qualified

e3

30

260

BF545B-TAPE-13

NXP Semiconductors

N-CHANNEL

SINGLE

YES

PLASTIC/EPOXY

AMPLIFIER

30 V

GULL WING

RECTANGULAR

DEPLETION MODE

1

VERY HIGH FREQUENCY BAND

3

SMALL OUTLINE

JUNCTION

150 Cel

SILICON

DUAL

R-PDSO-G3

Not Qualified

BF998WR

NXP Semiconductors

N-CHANNEL

SINGLE WITH BUILT-IN DIODE

YES

.3 W

PLASTIC/EPOXY

AMPLIFIER

12 V

GULL WING

RECTANGULAR

DUAL GATE, DEPLETION MODE

2

ULTRA HIGH FREQUENCY BAND

.03 A

4

SMALL OUTLINE

FET General Purpose Power

METAL-OXIDE SEMICONDUCTOR

150 Cel

SILICON

TIN

.03 A

DUAL

R-PDSO-G4

SOURCE

Not Qualified

LOW NOISE

e3

30

260

BF998-TAPE-7

NXP Semiconductors

N-CHANNEL

SINGLE WITH BUILT-IN DIODE

YES

PLASTIC/EPOXY

AMPLIFIER

12 V

GULL WING

RECTANGULAR

DUAL GATE, DEPLETION MODE

1

ULTRA HIGH FREQUENCY BAND

4

SMALL OUTLINE

METAL-OXIDE SEMICONDUCTOR

150 Cel

SILICON

.03 A

DUAL

R-PDSO-G4

SOURCE

Not Qualified

LOW NOISE

BF512-TAPE-7

NXP Semiconductors

N-CHANNEL

SINGLE

YES

PLASTIC/EPOXY

AMPLIFIER

20 V

GULL WING

RECTANGULAR

DEPLETION MODE

1

VERY HIGH FREQUENCY BAND

3

SMALL OUTLINE

JUNCTION

150 Cel

SILICON

.03 A

DUAL

R-PDSO-G3

Not Qualified

.4 pF

BF545CTRL13

NXP Semiconductors

N-CHANNEL

SINGLE

YES

PLASTIC/EPOXY

AMPLIFIER

30 V

GULL WING

RECTANGULAR

DEPLETION MODE

1

VERY HIGH FREQUENCY BAND

3

SMALL OUTLINE

JUNCTION

150 Cel

SILICON

TIN

DUAL

R-PDSO-G3

Not Qualified

e3

BF991T/R

NXP Semiconductors

N-CHANNEL

SINGLE WITH BUILT-IN DIODE

YES

.2 W

PLASTIC/EPOXY

AMPLIFIER

20 V

GULL WING

RECTANGULAR

DUAL GATE, DEPLETION MODE

1

VERY HIGH FREQUENCY BAND

.02 A

4

SMALL OUTLINE

FET General Purpose Power

METAL-OXIDE SEMICONDUCTOR

150 Cel

SILICON

TIN

.02 A

DUAL

R-PDSO-G4

SOURCE

Not Qualified

e3

260

BF997

NXP Semiconductors

N-CHANNEL

SINGLE WITH BUILT-IN DIODE

YES

PLASTIC/EPOXY

AMPLIFIER

20 V

GULL WING

RECTANGULAR

DUAL GATE, DEPLETION MODE

1

VERY HIGH FREQUENCY BAND

4

SMALL OUTLINE

METAL-OXIDE SEMICONDUCTOR

150 Cel

SILICON

.03 A

DUAL

R-PDSO-G4

SOURCE

Not Qualified

BF510-TAPE-13

NXP Semiconductors

N-CHANNEL

SINGLE

YES

PLASTIC/EPOXY

AMPLIFIER

20 V

GULL WING

RECTANGULAR

DEPLETION MODE

1

VERY HIGH FREQUENCY BAND

3

SMALL OUTLINE

JUNCTION

150 Cel

SILICON

.03 A

DUAL

R-PDSO-G3

Not Qualified

.4 pF

BF545C

NXP Semiconductors

N-CHANNEL

SINGLE

YES

.25 W

PLASTIC/EPOXY

SWITCHING

30 V

GULL WING

RECTANGULAR

DEPLETION MODE

1

VERY HIGH FREQUENCY BAND

3

SMALL OUTLINE

Other Transistors

JUNCTION

150 Cel

SILICON

Tin (Sn)

DUAL

R-PDSO-G3

1

Not Qualified

TO-236AB

e3

30

260

BF511TRL

NXP Semiconductors

N-CHANNEL

SINGLE

YES

PLASTIC/EPOXY

AMPLIFIER

20 V

GULL WING

RECTANGULAR

DEPLETION MODE

1

VERY HIGH FREQUENCY BAND

3

SMALL OUTLINE

JUNCTION

150 Cel

SILICON

TIN

.03 A

DUAL

R-PDSO-G3

Not Qualified

e3

BF991TRL

NXP Semiconductors

N-CHANNEL

SINGLE WITH BUILT-IN DIODE

YES

PLASTIC/EPOXY

AMPLIFIER

20 V

GULL WING

RECTANGULAR

DUAL GATE, DEPLETION MODE

1

VERY HIGH FREQUENCY BAND

4

SMALL OUTLINE

METAL-OXIDE SEMICONDUCTOR

150 Cel

SILICON

TIN

.02 A

DUAL

R-PDSO-G4

SOURCE

Not Qualified

e3

BF512-T

NXP Semiconductors

N-CHANNEL

SINGLE

YES

PLASTIC/EPOXY

AMPLIFIER

20 V

GULL WING

RECTANGULAR

DEPLETION MODE

1

VERY HIGH FREQUENCY BAND

3

SMALL OUTLINE

JUNCTION

150 Cel

SILICON

.03 A

DUAL

R-PDSO-G3

Not Qualified

LOW NOISE

.4 pF

BF990AR-TAPE-13

NXP Semiconductors

N-CHANNEL

SINGLE WITH BUILT-IN DIODE

YES

PLASTIC/EPOXY

AMPLIFIER

18 V

GULL WING

RECTANGULAR

DUAL GATE, DEPLETION MODE

1

ULTRA HIGH FREQUENCY BAND

4

SMALL OUTLINE

METAL-OXIDE SEMICONDUCTOR

150 Cel

SILICON

.03 A

DUAL

R-PDSO-G4

SOURCE

Not Qualified

BF513-T

NXP Semiconductors

N-CHANNEL

SINGLE

YES

PLASTIC/EPOXY

AMPLIFIER

20 V

GULL WING

RECTANGULAR

DEPLETION MODE

1

VERY HIGH FREQUENCY BAND

3

SMALL OUTLINE

JUNCTION

150 Cel

SILICON

.03 A

DUAL

R-PDSO-G3

Not Qualified

LOW NOISE

.4 pF

BF512T/R

NXP Semiconductors

N-CHANNEL

SINGLE

YES

.25 W

PLASTIC/EPOXY

AMPLIFIER

20 V

GULL WING

RECTANGULAR

DEPLETION MODE

1

VERY HIGH FREQUENCY BAND

3

SMALL OUTLINE

Other Transistors

JUNCTION

150 Cel

SILICON

MATTE TIN

.03 A

DUAL

R-PDSO-G3

Not Qualified

LOW NOISE

e3

260

.4 pF

BF545ATRL

NXP Semiconductors

N-CHANNEL

SINGLE

YES

PLASTIC/EPOXY

AMPLIFIER

30 V

GULL WING

RECTANGULAR

DEPLETION MODE

1

VERY HIGH FREQUENCY BAND

3

SMALL OUTLINE

JUNCTION

150 Cel

SILICON

TIN

DUAL

R-PDSO-G3

Not Qualified

e3

BF545A-TAPE-7

NXP Semiconductors

N-CHANNEL

SINGLE

YES

PLASTIC/EPOXY

AMPLIFIER

30 V

GULL WING

RECTANGULAR

DEPLETION MODE

1

VERY HIGH FREQUENCY BAND

3

SMALL OUTLINE

JUNCTION

150 Cel

SILICON

DUAL

R-PDSO-G3

Not Qualified

BF513-TAPE-7

NXP Semiconductors

N-CHANNEL

SINGLE

YES

PLASTIC/EPOXY

AMPLIFIER

20 V

GULL WING

RECTANGULAR

DEPLETION MODE

1

VERY HIGH FREQUENCY BAND

3

SMALL OUTLINE

JUNCTION

150 Cel

SILICON

.03 A

DUAL

R-PDSO-G3

Not Qualified

.4 pF

BF512TRL13

NXP Semiconductors

N-CHANNEL

SINGLE

YES

PLASTIC/EPOXY

AMPLIFIER

20 V

GULL WING

RECTANGULAR

DEPLETION MODE

1

VERY HIGH FREQUENCY BAND

3

SMALL OUTLINE

JUNCTION

150 Cel

SILICON

TIN

.03 A

DUAL

R-PDSO-G3

Not Qualified

e3

BF997-TAPE-7

NXP Semiconductors

N-CHANNEL

SINGLE WITH BUILT-IN DIODE

YES

PLASTIC/EPOXY

AMPLIFIER

20 V

GULL WING

RECTANGULAR

DUAL GATE, DEPLETION MODE

1

ULTRA HIGH FREQUENCY BAND

4

SMALL OUTLINE

METAL-OXIDE SEMICONDUCTOR

150 Cel

SILICON

.03 A

DUAL

R-PDSO-G4

SOURCE

Not Qualified

BF992R

NXP Semiconductors

N-CHANNEL

SINGLE WITH BUILT-IN DIODE

YES

PLASTIC/EPOXY

AMPLIFIER

20 V

GULL WING

RECTANGULAR

DUAL GATE, DEPLETION MODE

1

VERY HIGH FREQUENCY BAND

4

SMALL OUTLINE

METAL-OXIDE SEMICONDUCTOR

150 Cel

SILICON

.04 A

DUAL

R-PDSO-G4

SOURCE

Not Qualified

.04 pF

BF512-TAPE-13

NXP Semiconductors

N-CHANNEL

SINGLE

YES

PLASTIC/EPOXY

AMPLIFIER

20 V

GULL WING

RECTANGULAR

DEPLETION MODE

1

VERY HIGH FREQUENCY BAND

3

SMALL OUTLINE

JUNCTION

150 Cel

SILICON

.03 A

DUAL

R-PDSO-G3

Not Qualified

.4 pF

BF994STRL

NXP Semiconductors

N-CHANNEL

SINGLE WITH BUILT-IN DIODE

YES

PLASTIC/EPOXY

AMPLIFIER

20 V

GULL WING

RECTANGULAR

DUAL GATE, DEPLETION MODE

1

VERY HIGH FREQUENCY BAND

4

SMALL OUTLINE

METAL-OXIDE SEMICONDUCTOR

150 Cel

SILICON

TIN

.03 A

DUAL

R-PDSO-G4

SOURCE

Not Qualified

e3

CLF1G0060-10U

NXP Semiconductors

N-CHANNEL

SINGLE

YES

CERAMIC, METAL-SEALED COFIRED

AMPLIFIER

150 V

FLAT

RECTANGULAR

DEPLETION MODE

1

C BAND

2

FLANGE MOUNT

HIGH ELECTRON MOBILITY

GALLIUM NITRIDE

DUAL

R-CDFM-F2

SOURCE

IEC-60134

BF511T/R

NXP Semiconductors

N-CHANNEL

SINGLE

YES

.25 W

PLASTIC/EPOXY

AMPLIFIER

20 V

GULL WING

RECTANGULAR

DEPLETION MODE

1

VERY HIGH FREQUENCY BAND

3

SMALL OUTLINE

Other Transistors

JUNCTION

150 Cel

SILICON

MATTE TIN

.03 A

DUAL

R-PDSO-G3

Not Qualified

LOW NOISE

e3

260

.4 pF

BF990A-TAPE-13

NXP Semiconductors

N-CHANNEL

SINGLE WITH BUILT-IN DIODE

YES

PLASTIC/EPOXY

AMPLIFIER

18 V

GULL WING

RECTANGULAR

DUAL GATE, DEPLETION MODE

1

ULTRA HIGH FREQUENCY BAND

4

SMALL OUTLINE

METAL-OXIDE SEMICONDUCTOR

150 Cel

SILICON

.03 A

DUAL

R-PDSO-G4

SOURCE

Not Qualified

BF991-TAPE-7

NXP Semiconductors

N-CHANNEL

SINGLE WITH BUILT-IN DIODE

YES

PLASTIC/EPOXY

AMPLIFIER

20 V

GULL WING

RECTANGULAR

DUAL GATE, DEPLETION MODE

1

VERY HIGH FREQUENCY BAND

4

SMALL OUTLINE

METAL-OXIDE SEMICONDUCTOR

150 Cel

SILICON

.02 A

DUAL

R-PDSO-G4

SOURCE

Not Qualified

BF992

NXP Semiconductors

N-CHANNEL

SINGLE WITH BUILT-IN DIODE

YES

.2 W

PLASTIC/EPOXY

AMPLIFIER

20 V

GULL WING

RECTANGULAR

DUAL GATE, DEPLETION MODE

1

VERY HIGH FREQUENCY BAND

.04 A

4

SMALL OUTLINE

FET General Purpose Power

METAL-OXIDE SEMICONDUCTOR

150 Cel

SILICON

Tin (Sn)

.04 A

DUAL

R-PDSO-G4

1

SOURCE

Not Qualified

e3

30

260

.04 pF

BF992,215

NXP Semiconductors

N-CHANNEL

SINGLE WITH BUILT-IN DIODE

YES

.2 W

PLASTIC/EPOXY

AMPLIFIER

20 V

GULL WING

RECTANGULAR

DUAL GATE, DEPLETION MODE

1

VERY HIGH FREQUENCY BAND

.04 A

4

SMALL OUTLINE

FET General Purpose Power

METAL-OXIDE SEMICONDUCTOR

150 Cel

SILICON

Tin (Sn)

.04 A

DUAL

R-PDSO-G4

1

SOURCE

Not Qualified

e3

30

260

.04 pF

BF994S

NXP Semiconductors

N-CHANNEL

SINGLE WITH BUILT-IN DIODE

YES

.2 W

PLASTIC/EPOXY

AMPLIFIER

20 V

GULL WING

RECTANGULAR

DUAL GATE, DEPLETION MODE

2

VERY HIGH FREQUENCY BAND

.03 A

4

SMALL OUTLINE

FET General Purpose Power

METAL-OXIDE SEMICONDUCTOR

150 Cel

SILICON

Tin (Sn)

.03 A

DUAL

R-PDSO-G4

1

SOURCE

Not Qualified

e3

30

260

BF994STRL13

NXP Semiconductors

N-CHANNEL

SINGLE WITH BUILT-IN DIODE

YES

PLASTIC/EPOXY

AMPLIFIER

20 V

GULL WING

RECTANGULAR

DUAL GATE, DEPLETION MODE

1

VERY HIGH FREQUENCY BAND

4

SMALL OUTLINE

METAL-OXIDE SEMICONDUCTOR

150 Cel

SILICON

TIN

.03 A

DUAL

R-PDSO-G4

SOURCE

Not Qualified

e3

BF511TRL13

NXP Semiconductors

N-CHANNEL

SINGLE

YES

PLASTIC/EPOXY

AMPLIFIER

20 V

GULL WING

RECTANGULAR

DEPLETION MODE

1

VERY HIGH FREQUENCY BAND

3

SMALL OUTLINE

JUNCTION

150 Cel

SILICON

TIN

.03 A

DUAL

R-PDSO-G3

Not Qualified

e3

BF545AT/R

NXP Semiconductors

N-CHANNEL

SINGLE

YES

PLASTIC/EPOXY

SWITCHING

30 V

GULL WING

RECTANGULAR

DEPLETION MODE

1

VERY HIGH FREQUENCY BAND

3

SMALL OUTLINE

JUNCTION

150 Cel

SILICON

TIN

DUAL

R-PDSO-G3

Not Qualified

TO-236AB

e3

BF996ST/R

NXP Semiconductors

N-CHANNEL

SINGLE WITH BUILT-IN DIODE

YES

.2 W

PLASTIC/EPOXY

AMPLIFIER

20 V

GULL WING

RECTANGULAR

DUAL GATE, DEPLETION MODE

2

ULTRA HIGH FREQUENCY BAND

.03 A

4

SMALL OUTLINE

FET General Purpose Power

METAL-OXIDE SEMICONDUCTOR

150 Cel

SILICON

TIN

.03 A

DUAL

R-PDSO-G4

SOURCE

Not Qualified

e3

260

BF545C-T

NXP Semiconductors

N-CHANNEL

SINGLE

YES

PLASTIC/EPOXY

SWITCHING

30 V

GULL WING

RECTANGULAR

DEPLETION MODE

1

VERY HIGH FREQUENCY BAND

3

SMALL OUTLINE

JUNCTION

150 Cel

SILICON

DUAL

R-PDSO-G3

Not Qualified

TO-236AB

BF512

NXP Semiconductors

N-CHANNEL

SINGLE

YES

.25 W

PLASTIC/EPOXY

AMPLIFIER

20 V

GULL WING

RECTANGULAR

DEPLETION MODE

1

VERY HIGH FREQUENCY BAND

3

SMALL OUTLINE

Other Transistors

JUNCTION

150 Cel

SILICON

Tin (Sn)

.03 A

DUAL

R-PDSO-G3

1

Not Qualified

LOW NOISE

e3

30

260

.4 pF

BF992-T

NXP Semiconductors

N-CHANNEL

SINGLE WITH BUILT-IN DIODE

YES

PLASTIC/EPOXY

AMPLIFIER

20 V

GULL WING

RECTANGULAR

DUAL GATE, DEPLETION MODE

1

VERY HIGH FREQUENCY BAND

4

SMALL OUTLINE

METAL-OXIDE SEMICONDUCTOR

150 Cel

SILICON

.04 A

DUAL

R-PDSO-G4

SOURCE

Not Qualified

.04 pF

BF992R-T

NXP Semiconductors

N-CHANNEL

SINGLE WITH BUILT-IN DIODE

YES

PLASTIC/EPOXY

AMPLIFIER

20 V

GULL WING

RECTANGULAR

DUAL GATE, DEPLETION MODE

1

VERY HIGH FREQUENCY BAND

4

SMALL OUTLINE

METAL-OXIDE SEMICONDUCTOR

150 Cel

SILICON

.04 A

DUAL

R-PDSO-G4

SOURCE

Not Qualified

.04 pF

BF513T/R

NXP Semiconductors

N-CHANNEL

SINGLE

YES

.25 W

PLASTIC/EPOXY

AMPLIFIER

20 V

GULL WING

RECTANGULAR

DEPLETION MODE

1

VERY HIGH FREQUENCY BAND

3

SMALL OUTLINE

Other Transistors

JUNCTION

150 Cel

SILICON

MATTE TIN

.03 A

DUAL

R-PDSO-G3

Not Qualified

LOW NOISE

e3

260

.4 pF

BF998R-T

NXP Semiconductors

N-CHANNEL

SINGLE WITH BUILT-IN DIODE

YES

PLASTIC/EPOXY

AMPLIFIER

12 V

GULL WING

RECTANGULAR

DUAL GATE, DEPLETION MODE

2

ULTRA HIGH FREQUENCY BAND

4

SMALL OUTLINE

METAL-OXIDE SEMICONDUCTOR

150 Cel

SILICON

.03 A

DUAL

R-PDSO-G4

SOURCE

Not Qualified

LOW NOISE

BF998R-TAPE-13

NXP Semiconductors

N-CHANNEL

SINGLE WITH BUILT-IN DIODE

YES

PLASTIC/EPOXY

AMPLIFIER

12 V

GULL WING

RECTANGULAR

DUAL GATE, DEPLETION MODE

1

ULTRA HIGH FREQUENCY BAND

4

SMALL OUTLINE

METAL-OXIDE SEMICONDUCTOR

150 Cel

SILICON

.03 A

DUAL

R-PDSO-G4

SOURCE

Not Qualified

LOW NOISE

BF545C-TAPE-13

NXP Semiconductors

N-CHANNEL

SINGLE

YES

PLASTIC/EPOXY

AMPLIFIER

30 V

GULL WING

RECTANGULAR

DEPLETION MODE

1

VERY HIGH FREQUENCY BAND

3

SMALL OUTLINE

JUNCTION

150 Cel

SILICON

DUAL

R-PDSO-G3

Not Qualified

BF998WR-T

NXP Semiconductors

N-CHANNEL

SINGLE WITH BUILT-IN DIODE

YES

PLASTIC/EPOXY

AMPLIFIER

12 V

GULL WING

RECTANGULAR

DUAL GATE, DEPLETION MODE

2

ULTRA HIGH FREQUENCY BAND

4

SMALL OUTLINE

METAL-OXIDE SEMICONDUCTOR

150 Cel

SILICON

.03 A

DUAL

R-PDSO-G4

SOURCE

Not Qualified

LOW NOISE

BF991TRL13

NXP Semiconductors

N-CHANNEL

SINGLE WITH BUILT-IN DIODE

YES

PLASTIC/EPOXY

AMPLIFIER

20 V

GULL WING

RECTANGULAR

DUAL GATE, DEPLETION MODE

1

VERY HIGH FREQUENCY BAND

4

SMALL OUTLINE

METAL-OXIDE SEMICONDUCTOR

150 Cel

SILICON

TIN

.02 A

DUAL

R-PDSO-G4

SOURCE

Not Qualified

e3

BF545B-T

NXP Semiconductors

N-CHANNEL

SINGLE

YES

PLASTIC/EPOXY

SWITCHING

30 V

GULL WING

RECTANGULAR

DEPLETION MODE

1

VERY HIGH FREQUENCY BAND

3

SMALL OUTLINE

JUNCTION

150 Cel

SILICON

DUAL

R-PDSO-G3

Not Qualified

TO-236AB

BF994S,215

NXP Semiconductors

N-CHANNEL

SINGLE WITH BUILT-IN DIODE

YES

.2 W

PLASTIC/EPOXY

AMPLIFIER

20 V

GULL WING

RECTANGULAR

DUAL GATE, DEPLETION MODE

1

VERY HIGH FREQUENCY BAND

.03 A

4

SMALL OUTLINE

FET General Purpose Power

METAL-OXIDE SEMICONDUCTOR

150 Cel

SILICON

TIN

.03 A

DUAL

R-PDSO-G4

1

SOURCE

Not Qualified

e3

30

260

RF Small Signal Field Effect Transistors (FET)

RF Small Signal Bipolar Junction Transistors (BJT) are electronic devices used in low-power RF (radio frequency) applications to amplify and control small signals. They are commonly used in applications such as wireless communication, GPS, and radio broadcasting.

RF Small Signal BJTs are designed to handle low-power levels and operate at high frequencies, typically in the range of a few MHz to several GHz. They have a high gain and low noise figure, making them suitable for small signal amplification.

The RF Small Signal BJT consists of an emitter, base, and collector region, and works by controlling the flow of majority charge carriers (electrons or holes) between the emitter and collector through the base region. When a voltage is applied to the base-emitter junction, a small current flows through the base, allowing a larger current to flow from the emitter to the collector.

RF Small Signal Field Effect Transistors (FET) are electronic devices used in low-power RF (radio frequency) applications to amplify and control small signals. They are commonly used in applications such as wireless communication, GPS, and radio broadcasting.

RF Small Signal FETs are designed to handle low-power levels and operate at high frequencies, typically in the range of a few MHz to several GHz. They have a high gain and low noise figure, making them suitable for small signal amplification.

The RF Small Signal FET consists of a gate, source, and drain electrode, and works by controlling the flow of majority charge carriers (electrons or holes) between the source and drain regions through the gate electrode. When a voltage is applied to the gate electrode, it creates an electric field that modifies the conductivity of the channel, allowing current to flow between the source and drain.