Samsung Small Signal Bipolar Junction Transistors (BJT) 949

Reset All
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

KSP51

Samsung

PNP

SINGLE

NO

60 MHz

.6 A

PLASTIC/EPOXY

SWITCHING

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

40

SILICON

100 V

TIN LEAD

BOTTOM

O-PBCY-W3

Not Qualified

TO-92

e0

KSB1121-T

Samsung

PNP

SINGLE

YES

150 MHz

2 A

PLASTIC/EPOXY

SWITCHING

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

200

SILICON

25 V

SINGLE

R-PSSO-F3

Not Qualified

KSB811-O

Samsung

PNP

SINGLE

NO

110 MHz

1 A

PLASTIC/EPOXY

AMPLIFIER

THROUGH-HOLE

RECTANGULAR

1

3

IN-LINE

70

SILICON

25 V

SINGLE

R-PSIP-T3

Not Qualified

KSR1103

Samsung

NPN

SINGLE WITH BUILT-IN RESISTOR

YES

250 MHz

.2 W

.1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

56

SILICON

50 V

DUAL

R-PDSO-G3

Not Qualified

BUILT-IN BIAS RESISTOR RATIO IS 1

KST812M7TF

Samsung

PNP

SINGLE

YES

.1 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

300

SILICON

40 V

DUAL

R-PDSO-G3

Not Qualified

KSC1009-O

Samsung

NPN

SINGLE

NO

50 MHz

.7 A

PLASTIC/EPOXY

AMPLIFIER

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

70

SILICON

140 V

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

KSA1182-O

Samsung

PNP

SINGLE

YES

200 MHz

.5 A

PLASTIC/EPOXY

AMPLIFIER

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

70

SILICON

30 V

DUAL

R-PDSO-G3

Not Qualified

KST93TF

Samsung

PNP

SINGLE

YES

50 MHz

.5 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

40

SILICON

200 V

DUAL

R-PDSO-G3

Not Qualified

HIGH VOLTAGE

KSR1110

Samsung

NPN

SINGLE WITH BUILT-IN RESISTOR

YES

250 MHz

.2 W

.1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

100

SILICON

40 V

DUAL

R-PDSO-G3

Not Qualified

BUILT-IN BIAS RESISTOR

KSA1200

Samsung

PNP

SINGLE

YES

120 MHz

.05 A

PLASTIC/EPOXY

SWITCHING

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

70

SILICON

150 V

TIN LEAD

SINGLE

R-PSSO-F3

Not Qualified

HIGH VOLTAGE

e0

KSC2330-Y

Samsung

NPN

SINGLE

NO

50 MHz

.1 A

PLASTIC/EPOXY

AMPLIFIER

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

120

SILICON

300 V

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

BC327-B

Samsung

PNP

SINGLE

NO

100 MHz

.8 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

160

SILICON

45 V

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

KSC2982-B

Samsung

NPN

SINGLE

YES

150 MHz

2 A

PLASTIC/EPOXY

SWITCHING

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

200

SILICON

10 V

SINGLE

R-PSSO-F3

Not Qualified

KSR1105TR

Samsung

NPN

SINGLE WITH BUILT-IN RESISTOR

YES

250 MHz

.1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

30

SILICON

50 V

DUAL

R-PDSO-G3

Not Qualified

DIGITAL, BUILT-IN BIAS RESISTOR RATIO IS 2.127

KSA545

Samsung

PNP

SINGLE

NO

.4 W

.2 A

PLASTIC/EPOXY

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

40

150 Cel

SILICON

60 V

TIN LEAD

BOTTOM

O-PBCY-W3

Not Qualified

TO-92

e0

KSC839

Samsung

NPN

SINGLE

NO

200 MHz

.25 W

.1 A

PLASTIC/EPOXY

SWITCHING

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

40

150 Cel

SILICON

30 V

BOTTOM

O-PBCY-W3

Not Qualified

TO-92

KSR2001

Samsung

PNP

SINGLE WITH BUILT-IN RESISTOR

NO

200 MHz

.1 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

BIP General Purpose Small Signal

20

SILICON

50 V

BOTTOM

O-PBCY-T3

Not Qualified

BUILT-IN BIAS RESISTOR RATIO IS 1

TO-92

KSR2109TI

Samsung

PNP

SINGLE WITH BUILT-IN RESISTOR

YES

200 MHz

.1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

100

SILICON

40 V

DUAL

R-PDSO-G3

Not Qualified

DIGITAL, BUILT-IN BIAS RESISTOR

KSR1014

Samsung

NPN

SINGLE WITH BUILT-IN RESISTOR

NO

250 MHz

.3 W

.1 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

BIP General Purpose Small Signal

68

SILICON

50 V

BOTTOM

O-PBCY-T3

Not Qualified

BUILT-IN BIAS RESISTOR RATIO IS 10

TO-92

KSC5019-M

Samsung

NPN

SINGLE

NO

150 MHz

2 A

PLASTIC/EPOXY

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

200

SILICON

10 V

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

KSP70

Samsung

PNP

SINGLE

NO

125 MHz

.1 A

PLASTIC/EPOXY

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

40

SILICON

40 V

TIN LEAD

BOTTOM

O-PBCY-W3

Not Qualified

TO-92

e0

KST56TR

Samsung

PNP

SINGLE

YES

100 MHz

.5 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

50

SILICON

80 V

DUAL

R-PDSO-G3

Not Qualified

KSA1241-O-I

Samsung

PNP

SINGLE

NO

100 MHz

2 A

PLASTIC/EPOXY

AMPLIFIER

THROUGH-HOLE

RECTANGULAR

1

3

IN-LINE

70

SILICON

50 V

SINGLE

R-PSIP-T3

Not Qualified

KSR1105TI

Samsung

NPN

SINGLE WITH BUILT-IN RESISTOR

YES

250 MHz

.1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

30

SILICON

50 V

DUAL

R-PDSO-G3

Not Qualified

DIGITAL, BUILT-IN BIAS RESISTOR RATIO IS 2.127

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

KST2222TF

Samsung

NPN

SINGLE

YES

200 MHz

.6 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

100

SILICON

30 V

DUAL

R-PDSO-G3

Not Qualified

KSA812TF

Samsung

PNP

SINGLE

YES

250 MHz

.1 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

90

SILICON

50 V

DUAL

R-PDSO-G3

Not Qualified

KSC3488-O

Samsung

NPN

SINGLE

NO

.3 A

PLASTIC/EPOXY

AMPLIFIER

THROUGH-HOLE

RECTANGULAR

1

3

IN-LINE

70

SILICON

25 V

SINGLE

R-PSIP-T3

Not Qualified

KSC1009-G

Samsung

NPN

SINGLE

NO

50 MHz

.7 A

PLASTIC/EPOXY

AMPLIFIER

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

200

SILICON

140 V

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

KSR2104TR

Samsung

PNP

SINGLE WITH BUILT-IN RESISTOR

YES

200 MHz

.1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

68

SILICON

50 V

DUAL

R-PDSO-G3

Not Qualified

DIGITAL, BUILT-IN BIAS RESISTOR RATIO IS 1

KSC1222-Y

Samsung

NPN

SINGLE

NO

100 MHz

.05 A

PLASTIC/EPOXY

AMPLIFIER

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

120

SILICON

45 V

BOTTOM

O-PBCY-T3

Not Qualified

LOW NOISE

TO-92

KSA1243-Y

Samsung

PNP

SINGLE

NO

100 MHz

3 A

PLASTIC/EPOXY

AMPLIFIER

.8 V

THROUGH-HOLE

RECTANGULAR

1

3

IN-LINE

10 W

120

150 Cel

SILICON

30 V

SINGLE

R-PSIP-T3

Not Qualified

KSD999

Samsung

NPN

SINGLE

YES

110 MHz

1 A

PLASTIC/EPOXY

.4 V

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

90

SILICON

25 V

TIN LEAD

SINGLE

R-PSSO-F3

Not Qualified

e0

KSR1005

Samsung

NPN

SINGLE WITH BUILT-IN RESISTOR

NO

250 MHz

.1 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

BIP General Purpose Small Signal

30

SILICON

50 V

BOTTOM

O-PBCY-T3

Not Qualified

BUILT-IN BIAS RESISTOR RATIO IS 2.127

TO-92

KST812M3

Samsung

PNP

SINGLE

YES

.35 W

.1 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

60

150 Cel

SILICON

40 V

TIN LEAD

DUAL

R-PDSO-G3

Not Qualified

e0

KSP6602

Samsung

NPN

SINGLE

NO

100 MHz

1 A

PLASTIC/EPOXY

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

50

SILICON

40 V

TIN LEAD

BOTTOM

O-PBCY-W3

Not Qualified

TO-92

e0

KSB811-G

Samsung

PNP

SINGLE

NO

110 MHz

1 A

PLASTIC/EPOXY

AMPLIFIER

THROUGH-HOLE

RECTANGULAR

1

3

IN-LINE

200

SILICON

25 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

KST20TF

Samsung

NPN

SINGLE

YES

125 MHz

.1 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

40

SILICON

40 V

DUAL

R-PDSO-G3

Not Qualified

KST5087TF

Samsung

PNP

SINGLE

YES

.05 A

PLASTIC/EPOXY

AMPLIFIER

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

250

SILICON

50 V

DUAL

R-PDSO-G3

Not Qualified

LOW NOISE

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

KST2907TI

Samsung

PNP

SINGLE

YES

200 MHz

.6 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

100

SILICON

40 V

DUAL

R-PDSO-G3

Not Qualified

KSA1241-O

Samsung

PNP

SINGLE

NO

100 MHz

2 A

PLASTIC/EPOXY

AMPLIFIER

.5 V

THROUGH-HOLE

RECTANGULAR

1

3

IN-LINE

10 W

70

150 Cel

SILICON

50 V

SINGLE

R-PSIP-T3

Not Qualified

KST1623L6TI

Samsung

NPN

SINGLE

YES

.1 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

200

SILICON

40 V

DUAL

R-PDSO-G3

Not Qualified

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

KST1623L3

Samsung

NPN

SINGLE

YES

200 MHz

.35 W

.1 A

PLASTIC/EPOXY

AMPLIFIER

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

60

SILICON

40 V

DUAL

R-PDSO-G3

Not Qualified

KSC2982

Samsung

NPN

SINGLE

YES

150 MHz

2 A

PLASTIC/EPOXY

SWITCHING

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

70

SILICON

10 V

SINGLE

R-PSSO-F3

Not Qualified

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