300 MHz Small Signal Bipolar Junction Transistors (BJT) 1,725

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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 Fall Time (tf) 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

KSC2787-O

Samsung

NPN

SINGLE

NO

300 MHz

.05 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

RECTANGULAR

1

3

IN-LINE

70

SILICON

30 V

SINGLE

R-PSIP-T3

Not Qualified

KST2222A

Samsung

NPN

SINGLE

YES

300 MHz

.35 W

.6 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

40

SILICON

40 V

35 ns

285 ns

DUAL

R-PDSO-G3

Not Qualified

KST3904TR

Samsung

NPN

SINGLE

YES

300 MHz

.2 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

100

SILICON

40 V

DUAL

R-PDSO-G3

Not Qualified

KSC2787-R

Samsung

NPN

SINGLE

NO

300 MHz

.05 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

RECTANGULAR

1

3

IN-LINE

40

SILICON

30 V

SINGLE

R-PSIP-T3

Not Qualified

KST3904TI

Samsung

NPN

SINGLE

YES

300 MHz

.2 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

100

SILICON

40 V

DUAL

R-PDSO-G3

Not Qualified

KST3906TI

Samsung

PNP

SINGLE

YES

300 MHz

.2 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

100

SILICON

40 V

DUAL

R-PDSO-G3

Not Qualified

KSC945-O

Samsung

NPN

SINGLE

NO

300 MHz

.15 A

PLASTIC/EPOXY

AMPLIFIER

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

70

SILICON

50 V

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

KSC2787-Y

Samsung

NPN

SINGLE

NO

300 MHz

.05 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

RECTANGULAR

1

3

IN-LINE

120

SILICON

30 V

SINGLE

R-PSIP-T3

Not Qualified

KSC2785-Y

Samsung

NPN

SINGLE

NO

300 MHz

.15 A

PLASTIC/EPOXY

AMPLIFIER

THROUGH-HOLE

RECTANGULAR

1

3

IN-LINE

120

SILICON

50 V

SINGLE

R-PSIP-T3

Not Qualified

KST2222ATI

Samsung

NPN

SINGLE

YES

300 MHz

.6 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

100

SILICON

40 V

DUAL

R-PDSO-G3

Not Qualified

KSC945-G

Samsung

NPN

SINGLE

NO

300 MHz

.15 A

PLASTIC/EPOXY

AMPLIFIER

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

200

SILICON

50 V

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

KSC2785-G

Samsung

NPN

SINGLE

NO

300 MHz

.15 A

PLASTIC/EPOXY

AMPLIFIER

THROUGH-HOLE

RECTANGULAR

1

3

IN-LINE

200

SILICON

50 V

SINGLE

R-PSIP-T3

Not Qualified

KSC2859-Y

Samsung

NPN

SINGLE

YES

300 MHz

.5 A

PLASTIC/EPOXY

AMPLIFIER

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

120

SILICON

30 V

DUAL

R-PDSO-G3

Not Qualified

KSC1675-R

Samsung

NPN

SINGLE

NO

300 MHz

.05 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

40

SILICON

30 V

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

KSC2859-O

Samsung

NPN

SINGLE

YES

300 MHz

.5 A

PLASTIC/EPOXY

AMPLIFIER

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

70

SILICON

30 V

DUAL

R-PDSO-G3

Not Qualified

BCW71TI

Samsung

NPN

SINGLE

YES

300 MHz

.1 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

110

SILICON

45 V

DUAL

R-PDSO-G3

Not Qualified

KSC2787

Samsung

NPN

SINGLE

NO

300 MHz

.25 W

.05 A

PLASTIC/EPOXY

SWITCHING

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

40

150 Cel

SILICON

30 V

BOTTOM

O-PBCY-W3

Not Qualified

KSC945-Y

Samsung

NPN

SINGLE

NO

300 MHz

.15 A

PLASTIC/EPOXY

AMPLIFIER

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

120

SILICON

50 V

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

BCW71TR

Samsung

NPN

SINGLE

YES

300 MHz

.1 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

110

SILICON

45 V

DUAL

R-PDSO-G3

Not Qualified

KST3904TF

Samsung

NPN

SINGLE

YES

300 MHz

.2 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

100

SILICON

40 V

DUAL

R-PDSO-G3

Not Qualified

KSC1675-Y

Samsung

NPN

SINGLE

NO

300 MHz

.05 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

120

SILICON

30 V

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

KSC945

Samsung

NPN

SINGLE

NO

300 MHz

.25 W

.15 A

PLASTIC/EPOXY

AMPLIFIER

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

40

150 Cel

SILICON

50 V

BOTTOM

O-PBCY-W3

Not Qualified

TO-92

KSC2785

Samsung

NPN

SINGLE

NO

300 MHz

.25 W

.15 A

PLASTIC/EPOXY

AMPLIFIER

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

70

150 Cel

SILICON

50 V

BOTTOM

O-PBCY-W3

Not Qualified

BCW71TF

Samsung

NPN

SINGLE

YES

300 MHz

.1 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

110

SILICON

45 V

DUAL

R-PDSO-G3

Not Qualified

KSC1675-O

Samsung

NPN

SINGLE

NO

300 MHz

.05 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

70

SILICON

30 V

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

KSC1330

Samsung

NPN

SINGLE

NO

300 MHz

.4 W

.1 A

PLASTIC/EPOXY

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

70

150 Cel

SILICON

40 V

TIN LEAD

BOTTOM

O-PBCY-W3

Not Qualified

TO-92

e0

KSC2785-L

Samsung

NPN

SINGLE

NO

300 MHz

.15 A

PLASTIC/EPOXY

AMPLIFIER

THROUGH-HOLE

RECTANGULAR

1

3

IN-LINE

350

SILICON

50 V

SINGLE

R-PSIP-T3

Not Qualified

KSC2785-O

Samsung

NPN

SINGLE

NO

300 MHz

.15 A

PLASTIC/EPOXY

AMPLIFIER

THROUGH-HOLE

RECTANGULAR

1

3

IN-LINE

70

SILICON

50 V

SINGLE

R-PSIP-T3

Not Qualified

KSC945-R

Samsung

NPN

SINGLE

NO

300 MHz

.15 A

PLASTIC/EPOXY

AMPLIFIER

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

40

SILICON

50 V

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

KST2222ATR

Samsung

NPN

SINGLE

YES

300 MHz

.6 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

100

SILICON

40 V

DUAL

R-PDSO-G3

Not Qualified

KSC945-L

Samsung

NPN

SINGLE

NO

300 MHz

.15 A

PLASTIC/EPOXY

AMPLIFIER

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

350

SILICON

50 V

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

BC549-A

Samsung

NPN

SINGLE

NO

300 MHz

.1 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

110

SILICON

30 V

BOTTOM

O-PBCY-T3

Not Qualified

LOW NOISE

TO-92

KST4126TF

Samsung

PNP

SINGLE

YES

300 MHz

.2 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

120

SILICON

25 V

DUAL

R-PDSO-G3

Not Qualified

BC850-A

Samsung

NPN

SINGLE

YES

300 MHz

.1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

110

SILICON

45 V

DUAL

R-PDSO-G3

Not Qualified

LOW NOISE

KST4124TI

Samsung

NPN

SINGLE

YES

300 MHz

.2 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

120

SILICON

25 V

DUAL

R-PDSO-G3

Not Qualified

BC550-A

Samsung

NPN

SINGLE

NO

300 MHz

.1 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

110

SILICON

45 V

BOTTOM

O-PBCY-T3

Not Qualified

LOW NOISE

TO-92

MMBT3904-T1

Samsung

NPN

SINGLE

YES

300 MHz

.2 A

PLASTIC/EPOXY

.3 V

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

30

4 pF

SILICON

40 V

70 ns

250 ns

DUAL

R-PDSO-G3

Not Qualified

KST4124

Samsung

NPN

SINGLE

YES

300 MHz

.35 W

.2 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

60

SILICON

25 V

DUAL

R-PDSO-G3

Not Qualified

MMBT2222A-T1

Samsung

NPN

SINGLE

YES

300 MHz

.6 A

PLASTIC/EPOXY

1 V

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

40

8 pF

SILICON

40 V

35 ns

285 ns

DUAL

R-PDSO-G3

Not Qualified

KST4124TF

Samsung

NPN

SINGLE

YES

300 MHz

.2 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

120

SILICON

25 V

DUAL

R-PDSO-G3

Not Qualified

KST4126TR

Samsung

PNP

SINGLE

YES

300 MHz

.2 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

120

SILICON

25 V

DUAL

R-PDSO-G3

Not Qualified

KST4126TI

Samsung

PNP

SINGLE

YES

300 MHz

.2 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

120

SILICON

25 V

DUAL

R-PDSO-G3

Not Qualified

BC849-A

Samsung

NPN

SINGLE

YES

300 MHz

.1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

110

SILICON

30 V

DUAL

R-PDSO-G3

Not Qualified

LOW NOISE

KST4124TR

Samsung

NPN

SINGLE

YES

300 MHz

.2 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

120

SILICON

25 V

DUAL

R-PDSO-G3

Not Qualified

KSP2222A

Samsung

NPN

SINGLE

NO

300 MHz

.6 A

PLASTIC/EPOXY

1 V

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

Other Transistors

40

150 Cel

8 pF

SILICON

40 V

35 ns

285 ns

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

Small Signal Bipolar Junction Transistors (BJT)

Small Signal Bipolar Junction Transistors (BJT) 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 BJTs 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 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.

Proper use of Small Signal BJTs is important to ensure optimal performance, reliability, and compatibility with other components in the circuit. Small Signal BJTs are often used in conjunction with other components, such as capacitors and resistors, to form complete low-power electronic circuits.B395