.2 W Small Signal Field Effect Transistors (FET) 350

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Part RoHS Manufacturer Polarity or Channel Type Configuration Surface Mount Nominal Transition Frequency (fT) Maximum Power Dissipation (Abs) Maximum Collector Current (IC) Package Body Material Transistor Application Maximum Rise Time (tr) Maximum VCEsat Minimum DS Breakdown Voltage Terminal Form Package Shape Operating Mode No. of Elements Maximum Pulsed Drain Current (IDM) Avalanche Energy Rating (EAS) Maximum Fall Time (tf) Maximum Drain Current (Abs) (ID) No. of Terminals Package Style (Meter) Sub-Category Field Effect Transistor Technology Maximum Power Dissipation Ambient Minimum DC Current Gain (hFE) Maximum Operating Temperature Maximum Collector-Base Capacitance Transistor Element Material Maximum Collector-Emitter Voltage Maximum Turn On Time (ton) Minimum Operating Temperature Maximum Turn Off Time (toff) Terminal Finish Maximum Drain-Source On Resistance 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

DMN55D0UTQ-7

Diodes Incorporated

N-CHANNEL

SINGLE WITH BUILT-IN DIODE

YES

.2 W

PLASTIC/EPOXY

50 V

GULL WING

RECTANGULAR

ENHANCEMENT MODE

1

.16 A

3

SMALL OUTLINE

FET General Purpose Power

METAL-OXIDE SEMICONDUCTOR

150 Cel

SILICON

MATTE TIN

4 ohm

.16 A

DUAL

R-PDSO-G3

1

HIGH RELIABILITY

e3

30

260

AEC-Q101

DMN5L06DW-7

Diodes Incorporated

N-CHANNEL

SEPARATE, 2 ELEMENTS WITH BUILT-IN DIODE

YES

.2 W

PLASTIC/EPOXY

SWITCHING

50 V

GULL WING

RECTANGULAR

ENHANCEMENT MODE

2

.28 A

6

SMALL OUTLINE

FET General Purpose Power

METAL-OXIDE SEMICONDUCTOR

150 Cel

SILICON

MATTE TIN

3 ohm

.28 A

DUAL

R-PDSO-G6

1

Not Qualified

LOW CAPACITANCE

e3

30

260

5 pF

DMN55D0UT-7

Diodes Incorporated

N-CHANNEL

SINGLE WITH BUILT-IN DIODE

YES

.2 W

PLASTIC/EPOXY

50 V

GULL WING

RECTANGULAR

ENHANCEMENT MODE

1

.16 A

3

SMALL OUTLINE

FET General Purpose Power

METAL-OXIDE SEMICONDUCTOR

150 Cel

SILICON

MATTE TIN

4 ohm

.16 A

DUAL

R-PDSO-G3

1

Not Qualified

HIGH RELIABILITY

e3

30

260

LMN200B02-1

Diodes Incorporated

P-CHANNEL

SINGLE WITH BUILT-IN BIPOLAR TRANSISTOR AND RESISTOR

YES

.2 W

200 A

PLASTIC/EPOXY

SWITCHING

.3 V

60 V

GULL WING

RECTANGULAR

ENHANCEMENT MODE

1

6

SMALL OUTLINE

Other Transistors

METAL-OXIDE SEMICONDUCTOR

60

150 Cel

SILICON

MATTE TIN

2 ohm

.115 A

DUAL

R-PDSO-G6

1

Not Qualified

e3

30

260

DMN5L06W-7

Diodes Incorporated

N-CHANNEL

SINGLE WITH BUILT-IN DIODE

YES

.2 W

PLASTIC/EPOXY

SWITCHING

50 V

GULL WING

RECTANGULAR

ENHANCEMENT MODE

1

.28 A

3

SMALL OUTLINE

FET General Purpose Power

METAL-OXIDE SEMICONDUCTOR

150 Cel

SILICON

MATTE TIN

3 ohm

.28 A

DUAL

R-PDSO-G3

1

Not Qualified

e3

30

260

5 pF

DMN601WK-7

Diodes Incorporated

N-CHANNEL

SINGLE WITH BUILT-IN DIODE

YES

.2 W

PLASTIC/EPOXY

SWITCHING

60 V

GULL WING

RECTANGULAR

ENHANCEMENT MODE

1

.3 A

3

SMALL OUTLINE

FET General Purpose Powers

METAL-OXIDE SEMICONDUCTOR

150 Cel

SILICON

MATTE TIN

2 ohm

.3 A

DUAL

R-PDSO-G3

1

Not Qualified

ESD PROTECTION

e3

30

260

5 pF

2N7002-01

Diodes Incorporated

N-CHANNEL

SINGLE

YES

.2 W

PLASTIC/EPOXY

SWITCHING

60 V

GULL WING

RECTANGULAR

ENHANCEMENT MODE

1

.115 A

3

SMALL OUTLINE

FET General Purpose Power

METAL-OXIDE SEMICONDUCTOR

150 Cel

SILICON

7.5 ohm

.115 A

DUAL

R-PDSO-G3

5 pF

DMN2004DWKQ-7

Diodes Incorporated

N-CHANNEL

SEPARATE, 2 ELEMENTS WITH BUILT-IN DIODE

YES

.2 W

PLASTIC/EPOXY

SWITCHING

20 V

GULL WING

RECTANGULAR

ENHANCEMENT MODE

2

6

SMALL OUTLINE

METAL-OXIDE SEMICONDUCTOR

150 Cel

SILICON

-55 Cel

MATTE TIN

.55 ohm

.54 A

DUAL

R-PDSO-G6

1

HIGH RELIABILITY

e3

30

260

20 pF

AEC-Q101

BSS123W-13

Diodes Incorporated

N-CHANNEL

SINGLE WITH BUILT-IN DIODE

YES

.2 W

PLASTIC/EPOXY

SWITCHING

100 V

GULL WING

RECTANGULAR

ENHANCEMENT MODE

1

3

SMALL OUTLINE

METAL-OXIDE SEMICONDUCTOR

.2 W

150 Cel

SILICON

-55 Cel

TIN LEAD

6 ohm

.17 A

DUAL

R-PDSO-G3

Not Qualified

e0

6 pF

DMN2005LP-7

Diodes Incorporated

N-CHANNEL

SINGLE WITH BUILT-IN DIODE

YES

.2 W

PLASTIC/EPOXY

SWITCHING

20 V

NO LEAD

RECTANGULAR

ENHANCEMENT MODE

1

.2 A

3

CHIP CARRIER

FET General Purpose Power

METAL-OXIDE SEMICONDUCTOR

150 Cel

SILICON

MATTE TIN

5 ohm

.2 A

BOTTOM

R-PBCC-N3

1

DRAIN

Not Qualified

e3

260

2SJ343

Toshiba

P-CHANNEL

SINGLE WITH BUILT-IN DIODE AND RESISTOR

YES

.2 W

PLASTIC/EPOXY

SWITCHING

50 V

GULL WING

RECTANGULAR

ENHANCEMENT MODE

1

.05 A

3

SMALL OUTLINE

Other Transistors

METAL-OXIDE SEMICONDUCTOR

150 Cel

SILICON

TIN LEAD

50 ohm

.05 A

DUAL

R-PDSO-G3

Not Qualified

TO-236

e0

2SJ105

Toshiba

P-CHANNEL

SINGLE

NO

.2 W

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

RECTANGULAR

DEPLETION MODE

1

3

IN-LINE

FET General Purpose Small Signal

JUNCTION

125 Cel

SILICON

Tin/Lead (Sn/Pb)

SINGLE

R-PSIP-T3

Not Qualified

e0

2SK2033

Toshiba

N-CHANNEL

SINGLE WITH BUILT-IN DIODE AND RESISTOR

YES

.2 W

PLASTIC/EPOXY

SWITCHING

20 V

GULL WING

RECTANGULAR

ENHANCEMENT MODE

1

.1 A

3

SMALL OUTLINE

FET General Purpose Power

METAL-OXIDE SEMICONDUCTOR

150 Cel

SILICON

TIN LEAD

12 ohm

.1 A

DUAL

R-PDSO-G3

Not Qualified

TO-236

e0

SSM5P16FU

Toshiba

P-CHANNEL

COMPLEX

YES

.2 W

PLASTIC/EPOXY

SWITCHING

20 V

GULL WING

RECTANGULAR

ENHANCEMENT MODE

2

.1 A

5

SMALL OUTLINE

Other Transistors

METAL-OXIDE SEMICONDUCTOR

150 Cel

SILICON

TIN LEAD

12 ohm

.1 A

DUAL

R-PDSO-G5

Not Qualified

e0

2SJ305

Toshiba

P-CHANNEL

SINGLE WITH BUILT-IN DIODE AND RESISTOR

YES

.2 W

PLASTIC/EPOXY

SWITCHING

30 V

GULL WING

RECTANGULAR

ENHANCEMENT MODE

1

.2 A

3

SMALL OUTLINE

Other Transistors

METAL-OXIDE SEMICONDUCTOR

150 Cel

SILICON

4 ohm

.2 A

DUAL

R-PDSO-G3

Not Qualified

TO-236

NOT SPECIFIED

NOT SPECIFIED

2SK2009

Toshiba

N-CHANNEL

SINGLE WITH BUILT-IN DIODE AND RESISTOR

YES

.2 W

PLASTIC/EPOXY

SWITCHING

30 V

GULL WING

RECTANGULAR

ENHANCEMENT MODE

1

.2 A

3

SMALL OUTLINE

FET General Purpose Power

METAL-OXIDE SEMICONDUCTOR

150 Cel

SILICON

2 ohm

.2 A

DUAL

R-PDSO-G3

Not Qualified

NOT SPECIFIED

NOT SPECIFIED

HN1K04FU

Toshiba

N-CHANNEL

SEPERATE, 2 ELEMENTS WITH BUILT-IN DIODE AND RESISTOR

YES

.2 W

PLASTIC/EPOXY

SWITCHING

50 V

GULL WING

RECTANGULAR

ENHANCEMENT MODE

2

.05 A

6

SMALL OUTLINE

FET General Purpose Power

METAL-OXIDE SEMICONDUCTOR

150 Cel

SILICON

TIN LEAD

50 ohm

.05 A

DUAL

R-PDSO-G6

Not Qualified

e0

2SJ168

Toshiba

P-CHANNEL

SINGLE

YES

.2 W

PLASTIC/EPOXY

SWITCHING

60 V

GULL WING

RECTANGULAR

ENHANCEMENT MODE

1

.2 A

3

SMALL OUTLINE

Other Transistors

METAL-OXIDE SEMICONDUCTOR

150 Cel

SILICON

2 ohm

.2 A

DUAL

R-PDSO-G3

Not Qualified

NOT SPECIFIED

NOT SPECIFIED

22 pF

SSM5N16FU

Toshiba

N-CHANNEL

COMMON SOURCE, 2 ELEMENTS WITH BUILT-IN DIODE AND RESISTOR

YES

.2 W

PLASTIC/EPOXY

SWITCHING

20 V

GULL WING

RECTANGULAR

ENHANCEMENT MODE

2

.1 A

5

SMALL OUTLINE

FET General Purpose Power

METAL-OXIDE SEMICONDUCTOR

150 Cel

SILICON

4 ohm

.1 A

DUAL

R-PDSO-G5

Not Qualified

NOT SPECIFIED

NOT SPECIFIED

2SJ345

Toshiba

P-CHANNEL

SINGLE WITH BUILT-IN DIODE AND RESISTOR

YES

.2 W

PLASTIC/EPOXY

SWITCHING

20 V

GULL WING

RECTANGULAR

ENHANCEMENT MODE

1

.05 A

3

SMALL OUTLINE

Other Transistors

METAL-OXIDE SEMICONDUCTOR

150 Cel

SILICON

Tin/Lead (Sn/Pb)

40 ohm

.05 A

DUAL

R-PDSO-G3

Not Qualified

TO-236

e0

2SJ109-GR

Toshiba

P-CHANNEL

SEPARATE, 2 ELEMENTS

NO

.2 W

PLASTIC/EPOXY

AMPLIFIER

THROUGH-HOLE

RECTANGULAR

DEPLETION MODE

2

7

IN-LINE

FET General Purpose Small Signal

JUNCTION

125 Cel

SILICON

Tin/Lead (Sn/Pb)

ZIG-ZAG

R-PZIP-T7

Not Qualified

LOW NOISE

e0

2SJ109-V

Toshiba

P-CHANNEL

SEPARATE, 2 ELEMENTS

NO

.2 W

PLASTIC/EPOXY

AMPLIFIER

THROUGH-HOLE

RECTANGULAR

DEPLETION MODE

2

7

IN-LINE

FET General Purpose Small Signal

JUNCTION

125 Cel

SILICON

Tin/Lead (Sn/Pb)

ZIG-ZAG

R-PZIP-T7

Not Qualified

LOW NOISE

e0

HN1K05FU

Toshiba

N-CHANNEL

SEPERATE, 2 ELEMENTS WITH BUILT-IN DIODE AND RESISTOR

YES

.2 W

PLASTIC/EPOXY

SWITCHING

20 V

GULL WING

RECTANGULAR

ENHANCEMENT MODE

2

.1 A

6

SMALL OUTLINE

FET General Purpose Power

METAL-OXIDE SEMICONDUCTOR

150 Cel

SILICON

TIN LEAD

40 ohm

.1 A

DUAL

R-PDSO-G6

Not Qualified

e0

2SJ107

Toshiba

P-CHANNEL

SINGLE

NO

.2 W

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

RECTANGULAR

DEPLETION MODE

1

3

IN-LINE

FET General Purpose Small Signal

JUNCTION

125 Cel

SILICON

TIN LEAD

SINGLE

R-PSIP-T3

Not Qualified

e0

2SK2823

Toshiba

N-CHANNEL

SINGLE WITH BUILT-IN DIODE AND RESISTOR

YES

.2 W

PLASTIC/EPOXY

SWITCHING

20 V

GULL WING

RECTANGULAR

ENHANCEMENT MODE

1

.1 A

3

SMALL OUTLINE

FET General Purpose Power

METAL-OXIDE SEMICONDUCTOR

150 Cel

SILICON

TIN LEAD

40 ohm

.1 A

DUAL

R-PDSO-G3

Not Qualified

TO-236

e0

HN4K03JU

Toshiba

N-CHANNEL

COMMON SOURCE, 2 ELEMENTS

YES

.2 W

PLASTIC/EPOXY

SWITCHING

20 V

GULL WING

RECTANGULAR

ENHANCEMENT MODE

2

5

SMALL OUTLINE

FET General Purpose Power

METAL-OXIDE SEMICONDUCTOR

150 Cel

SILICON

TIN LEAD

12 ohm

.1 A

DUAL

R-PDSO-G5

Not Qualified

e0

HN1K06FU

Toshiba

N-CHANNEL

SEPERATE, 2 ELEMENTS WITH BUILT-IN DIODE AND RESISTOR

YES

.2 W

PLASTIC/EPOXY

SWITCHING

20 V

GULL WING

RECTANGULAR

ENHANCEMENT MODE

2

.1 A

6

SMALL OUTLINE

FET General Purpose Power

METAL-OXIDE SEMICONDUCTOR

150 Cel

SILICON

TIN LEAD

6 ohm

.1 A

DUAL

R-PDSO-G6

Not Qualified

e0

2SJ108

Toshiba

P-CHANNEL

SINGLE

NO

.2 W

PLASTIC/EPOXY

AMPLIFIER

THROUGH-HOLE

RECTANGULAR

DEPLETION MODE

1

3

IN-LINE

FET General Purpose Small Signal

JUNCTION

125 Cel

SILICON

Tin/Lead (Sn/Pb)

SINGLE

R-PSIP-T3

Not Qualified

LOW NOISE

e0

HN1K02FU

Toshiba

N-CHANNEL

SEPERATE, 2 ELEMENTS WITH BUILT-IN DIODE AND RESISTOR

YES

.2 W

PLASTIC/EPOXY

SWITCHING

20 V

GULL WING

RECTANGULAR

ENHANCEMENT MODE

2

.05 A

6

SMALL OUTLINE

FET General Purpose Power

METAL-OXIDE SEMICONDUCTOR

150 Cel

SILICON

TIN LEAD

40 ohm

.05 A

DUAL

R-PDSO-G6

Not Qualified

e0

SSM5P15FU

Toshiba

P-CHANNEL

COMMON SOURCE, 2 ELEMENTS WITH BUILT-IN DIODE AND RESISTOR

YES

.2 W

PLASTIC/EPOXY

SWITCHING

30 V

GULL WING

RECTANGULAR

ENHANCEMENT MODE

2

.1 A

5

SMALL OUTLINE

Other Transistors

METAL-OXIDE SEMICONDUCTOR

150 Cel

SILICON

12 ohm

.1 A

DUAL

R-PDSO-G5

Not Qualified

NOT SPECIFIED

NOT SPECIFIED

2SK2036

Toshiba

N-CHANNEL

SINGLE WITH BUILT-IN DIODE AND RESISTOR

YES

.2 W

PLASTIC/EPOXY

SWITCHING

20 V

GULL WING

RECTANGULAR

ENHANCEMENT MODE

1

.1 A

3

SMALL OUTLINE

FET General Purpose Power

METAL-OXIDE SEMICONDUCTOR

150 Cel

SILICON

TIN LEAD

6 ohm

.1 A

DUAL

R-PDSO-G3

Not Qualified

TO-236

e0

SSM3J15F

Toshiba

P-CHANNEL

SINGLE WITH BUILT-IN DIODE AND RESISTOR

YES

.2 W

PLASTIC/EPOXY

SWITCHING

30 V

GULL WING

RECTANGULAR

ENHANCEMENT MODE

1

.1 A

3

SMALL OUTLINE

Other Transistors

METAL-OXIDE SEMICONDUCTOR

150 Cel

SILICON

12 ohm

.1 A

DUAL

R-PDSO-G3

Not Qualified

NOT SPECIFIED

NOT SPECIFIED

2SK3320-BL

Toshiba

N-CHANNEL

COMMON SOURCE, 2 ELEMENTS

YES

.2 W

PLASTIC/EPOXY

AMPLIFIER

50 V

GULL WING

RECTANGULAR

DEPLETION MODE

2

5

SMALL OUTLINE

Other Transistors

JUNCTION

.2 W

125 Cel

SILICON

TIN LEAD

DUAL

R-PDSO-G5

Not Qualified

LOW NOISE

e0

3 pF

2SK371-GR

Toshiba

N-CHANNEL

SINGLE

NO

.2 W

PLASTIC/EPOXY

AMPLIFIER

THROUGH-HOLE

RECTANGULAR

DEPLETION MODE

1

3

IN-LINE

Other Transistors

JUNCTION

125 Cel

SILICON

TIN LEAD

SINGLE

R-PSIP-T3

Not Qualified

LOW NOISE

TO-92

e0

2SK1826

Toshiba

N-CHANNEL

SINGLE WITH BUILT-IN DIODE AND RESISTOR

YES

.2 W

PLASTIC/EPOXY

SWITCHING

50 V

GULL WING

RECTANGULAR

ENHANCEMENT MODE

1

.05 A

3

SMALL OUTLINE

FET General Purpose Power

METAL-OXIDE SEMICONDUCTOR

150 Cel

SILICON

TIN LEAD

50 ohm

.05 A

DUAL

R-PDSO-G3

Not Qualified

TO-236

e0

2SK370-BL

Toshiba

N-CHANNEL

SINGLE

NO

.2 W

PLASTIC/EPOXY

AMPLIFIER

THROUGH-HOLE

RECTANGULAR

DEPLETION MODE

1

3

IN-LINE

Other Transistors

JUNCTION

125 Cel

SILICON

TIN LEAD

SINGLE

R-PSIP-T3

Not Qualified

LOW NOISE

e0

2SK367-O

Toshiba

N-CHANNEL

SINGLE

NO

.2 W

PLASTIC/EPOXY

AMPLIFIER

THROUGH-HOLE

RECTANGULAR

DEPLETION MODE

1

3

IN-LINE

Other Transistors

JUNCTION

125 Cel

SILICON

SINGLE

R-PSIP-T3

Not Qualified

2SK371

Toshiba

N-CHANNEL

SINGLE

NO

.2 W

PLASTIC/EPOXY

AMPLIFIER

THROUGH-HOLE

RECTANGULAR

DEPLETION MODE

1

3

IN-LINE

Other Transistors

JUNCTION

125 Cel

SILICON

TIN LEAD

SINGLE

R-PSIP-T3

Not Qualified

LOW NOISE

TO-92

e0

2SK1828

Toshiba

N-CHANNEL

SINGLE WITH BUILT-IN DIODE AND RESISTOR

YES

.2 W

PLASTIC/EPOXY

SWITCHING

20 V

GULL WING

RECTANGULAR

ENHANCEMENT MODE

1

.05 A

3

SMALL OUTLINE

FET General Purpose Power

METAL-OXIDE SEMICONDUCTOR

150 Cel

SILICON

40 ohm

.05 A

DUAL

R-PDSO-G3

Not Qualified

TO-236

NOT SPECIFIED

NOT SPECIFIED

2SK370-GR

Toshiba

N-CHANNEL

SINGLE

NO

.2 W

PLASTIC/EPOXY

AMPLIFIER

THROUGH-HOLE

RECTANGULAR

DEPLETION MODE

1

3

IN-LINE

Other Transistors

JUNCTION

125 Cel

SILICON

TIN LEAD

SINGLE

R-PSIP-T3

Not Qualified

LOW NOISE

e0

2SK367-Y

Toshiba

N-CHANNEL

SINGLE

NO

.2 W

PLASTIC/EPOXY

AMPLIFIER

THROUGH-HOLE

RECTANGULAR

DEPLETION MODE

1

3

IN-LINE

Other Transistors

JUNCTION

125 Cel

SILICON

SINGLE

R-PSIP-T3

Not Qualified

2SK710-BL

Toshiba

N-CHANNEL

SINGLE

NO

.2 W

PLASTIC/EPOXY

AMPLIFIER

THROUGH-HOLE

RECTANGULAR

DEPLETION MODE

1

3

IN-LINE

Other Transistors

JUNCTION

125 Cel

SILICON

SINGLE

R-PSIP-T3

Not Qualified

LOW NOISE

NOT SPECIFIED

240

3 pF

2SK184-BL

Toshiba

N-CHANNEL

SINGLE

NO

.2 W

PLASTIC/EPOXY

AMPLIFIER

THROUGH-HOLE

RECTANGULAR

DEPLETION MODE

1

3

IN-LINE

Other Transistors

JUNCTION

125 Cel

SILICON

TIN LEAD

SINGLE

R-PSIP-T3

Not Qualified

LOW NOISE

e0

2SK710-V

Toshiba

N-CHANNEL

SINGLE

NO

.2 W

PLASTIC/EPOXY

AMPLIFIER

THROUGH-HOLE

RECTANGULAR

DEPLETION MODE

1

3

IN-LINE

Other Transistors

JUNCTION

125 Cel

SILICON

SINGLE

R-PSIP-T3

Not Qualified

LOW NOISE

NOT SPECIFIED

240

3 pF

2SK330-Y

Toshiba

N-CHANNEL

SINGLE

NO

.2 W

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

RECTANGULAR

DEPLETION MODE

1

3

IN-LINE

Other Transistors

JUNCTION

125 Cel

SILICON

SINGLE

R-PSIP-T3

Not Qualified

2SK365-BL

Toshiba

N-CHANNEL

SINGLE

NO

.2 W

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

RECTANGULAR

DEPLETION MODE

1

3

IN-LINE

Other Transistors

JUNCTION

125 Cel

SILICON

TIN LEAD

SINGLE

R-PSIP-T3

Not Qualified

e0

2SK371-BL

Toshiba

N-CHANNEL

SINGLE

NO

.2 W

PLASTIC/EPOXY

AMPLIFIER

THROUGH-HOLE

RECTANGULAR

DEPLETION MODE

1

3

IN-LINE

Other Transistors

JUNCTION

125 Cel

SILICON

TIN LEAD

SINGLE

R-PSIP-T3

Not Qualified

LOW NOISE

TO-92

e0

2SK72

Toshiba

N-CHANNEL

NO

.2 W

FET General Purpose Small Signal

JUNCTION

150 Cel

Tin/Lead (Sn/Pb)

e0

Small Signal Field Effect Transistors (FET)

Small Signal Field Effect Transistors (FET) are electronic devices used in low-power applications to amplify and switch small signals. They are commonly used in applications such as audio amplifiers, signal processing, and low-power digital circuits.

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

The 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.

Proper use of Small Signal FETs is important to ensure optimal performance, reliability, and compatibility with other components in the circuit. Small Signal FETs are often used in conjunction with other components, such as capacitors and resistors, to form complete low-power electronic circuits.