Samsung Small Signal Bipolar Junction Transistors (BJT) 949

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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

KSA1182-Y

Samsung

PNP

SINGLE

YES

200 MHz

.5 A

PLASTIC/EPOXY

AMPLIFIER

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

120

SILICON

30 V

DUAL

R-PDSO-G3

Not Qualified

KSC853

Samsung

NPN

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

KSC2883-Y

Samsung

NPN

SINGLE

YES

120 MHz

1.5 A

PLASTIC/EPOXY

AMPLIFIER

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

160

SILICON

30 V

SINGLE

R-PSSO-F3

Not Qualified

KST1623L7

Samsung

NPN

SINGLE

YES

200 MHz

.35 W

.1 A

PLASTIC/EPOXY

AMPLIFIER

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

300

SILICON

40 V

DUAL

R-PDSO-G3

Not Qualified

KSR2102TI

Samsung

PNP

SINGLE WITH BUILT-IN RESISTOR

YES

200 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 1

KSP62

Samsung

PNP

DARLINGTON

NO

125 MHz

.5 A

PLASTIC/EPOXY

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

20000

SILICON

BOTTOM

O-PBCY-W3

Not Qualified

TO-92

KSA643

Samsung

PNP

SINGLE

NO

.5 W

.5 A

PLASTIC/EPOXY

AMPLIFIER

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

40

150 Cel

SILICON

20 V

BOTTOM

O-PBCY-W3

Not Qualified

TO-92

KSR2101

Samsung

PNP

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

20

SILICON

50 V

DUAL

R-PDSO-G3

Not Qualified

BUILT-IN BIAS RESISTOR RATIO IS 1

KSC815-Y

Samsung

NPN

SINGLE

NO

200 MHz

.2 A

PLASTIC/EPOXY

AMPLIFIER

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

120

SILICON

45 V

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

KSA542-G

Samsung

PNP

SINGLE

NO

100 MHz

.05 A

PLASTIC/EPOXY

AMPLIFIER

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

200

SILICON

25 V

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

KST5089TR

Samsung

NPN

SINGLE

YES

.05 A

PLASTIC/EPOXY

AMPLIFIER

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

400

SILICON

25 V

DUAL

R-PDSO-G3

Not Qualified

LOW NOISE

BC237-C

Samsung

NPN

SINGLE

NO

250 MHz

.1 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

380

SILICON

45 V

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

KSR2105

Samsung

PNP

SINGLE WITH BUILT-IN RESISTOR

YES

200 MHz

.2 W

.1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

30

SILICON

50 V

DUAL

R-PDSO-G3

Not Qualified

BUILT-IN BIAS RESISTOR RATIO IS 2.127

KSR2207

Samsung

PNP

SINGLE WITH BUILT-IN RESISTOR

NO

200 MHz

.3 W

.1 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

RECTANGULAR

1

3

IN-LINE

BIP General Purpose Small Signal

68

SILICON

50 V

SINGLE

R-PSIP-T3

Not Qualified

BUILT-IN BIAS RESISTOR RATIO IS 2.1363

KSA1156-N

Samsung

PNP

SINGLE

NO

.5 A

PLASTIC/EPOXY

SWITCHING

1 V

THROUGH-HOLE

RECTANGULAR

1

3

FLANGE MOUNT

10 W

30

150 Cel

SILICON

400 V

1000 ns

5000 ns

SINGLE

R-PSFM-T3

ISOLATED

Not Qualified

TO-126

KSC839-Y

Samsung

NPN

SINGLE

NO

200 MHz

.1 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

120

SILICON

30 V

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

KSB1121-R

Samsung

PNP

SINGLE

YES

150 MHz

2 A

PLASTIC/EPOXY

SWITCHING

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

100

SILICON

25 V

SINGLE

R-PSSO-F3

Not Qualified

KST1009F2

Samsung

NPN

SINGLE

YES

150 MHz

.35 W

.05 A

PLASTIC/EPOXY

AMPLIFIER

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

40

SILICON

25 V

DUAL

R-PDSO-G3

Not Qualified

KST540TF

Samsung

PNP

SINGLE

YES

100 MHz

.5 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

60

SILICON

150 V

DUAL

R-PDSO-G3

Not Qualified

KSC2715-R

Samsung

NPN

SINGLE

YES

100 MHz

.05 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

40

SILICON

30 V

DUAL

R-PDSO-G3

Not Qualified

KSC1008-Y

Samsung

NPN

SINGLE

NO

50 MHz

.7 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

120

SILICON

60 V

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

KST1009F3TR

Samsung

NPN

SINGLE

YES

150 MHz

.05 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

60

SILICON

25 V

DUAL

R-PDSO-G3

Not Qualified

KST05TF

Samsung

NPN

SINGLE

YES

100 MHz

.5 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

50

SILICON

60 V

DUAL

R-PDSO-G3

Not Qualified

KST6428TR

Samsung

NPN

SINGLE

YES

.2 A

PLASTIC/EPOXY

.6 V

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

250

SILICON

50 V

DUAL

R-PDSO-G3

Not Qualified

LOW NOISE

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

KST2907

Samsung

PNP

SINGLE

YES

200 MHz

.35 W

.6 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

75

SILICON

40 V

45 ns

100 ns

DUAL

R-PDSO-G3

Not Qualified

KST13TI

Samsung

NPN

DARLINGTON

YES

125 MHz

.3 A

PLASTIC/EPOXY

1.5 V

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

10000

SILICON

30 V

DUAL

R-PDSO-G3

Not Qualified

KSA1625-M

Samsung

PNP

SINGLE

NO

10 MHz

.5 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

40

SILICON

400 V

1000 ns

6000 ns

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

KSE2955T

Samsung

PNP

SINGLE

NO

2 MHz

75 W

10 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

RECTANGULAR

1

3

FLANGE MOUNT

Other Transistors

5

150 Cel

SILICON

SINGLE

R-PSFM-T3

Not Qualified

TO-220AB

KSC2710-Y

Samsung

NPN

SINGLE

NO

.5 A

PLASTIC/EPOXY

AMPLIFIER

THROUGH-HOLE

RECTANGULAR

1

3

IN-LINE

120

SILICON

20 V

SINGLE

R-PSIP-T3

Not Qualified

KSC2330-R

Samsung

NPN

SINGLE

NO

50 MHz

.1 A

PLASTIC/EPOXY

AMPLIFIER

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

40

SILICON

300 V

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

KSC1222-V

Samsung

NPN

SINGLE

NO

100 MHz

.05 A

PLASTIC/EPOXY

AMPLIFIER

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

600

SILICON

45 V

BOTTOM

O-PBCY-T3

Not Qualified

LOW NOISE

TO-92

KST1009F1

Samsung

NPN

SINGLE

YES

150 MHz

.35 W

.05 A

PLASTIC/EPOXY

AMPLIFIER

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

30

SILICON

25 V

DUAL

R-PDSO-G3

Not Qualified

KSC3488-Y

Samsung

NPN

SINGLE

NO

.3 A

PLASTIC/EPOXY

AMPLIFIER

THROUGH-HOLE

RECTANGULAR

1

3

IN-LINE

120

SILICON

25 V

SINGLE

R-PSIP-T3

Not Qualified

KSR2103TI

Samsung

PNP

SINGLE WITH BUILT-IN RESISTOR

YES

200 MHz

.1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

56

SILICON

50 V

DUAL

R-PDSO-G3

Not Qualified

DIGITAL, BUILT-IN BIAS RESISTOR RATIO IS 1

KSC340

Samsung

NPN

SINGLE

NO

.1 A

PLASTIC/EPOXY

SWITCHING

WIRE

ROUND

1

3

CYLINDRICAL

30

SILICON

350 V

BOTTOM

O-PBCY-W3

Not Qualified

KSR1114

Samsung

NPN

SINGLE WITH BUILT-IN RESISTOR

YES

250 MHz

.3 W

.1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

68

SILICON

50 V

DUAL

R-PDSO-G3

Not Qualified

BUILT-IN BIAS RESISTOR RATIO IS 10

KSR1102TR

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 1

KSB810-Y

Samsung

PNP

SINGLE

NO

160 MHz

.7 A

PLASTIC/EPOXY

AMPLIFIER

THROUGH-HOLE

RECTANGULAR

1

3

IN-LINE

120

SILICON

25 V

SINGLE

R-PSIP-T3

Not Qualified

KSC2331-R

Samsung

NPN

SINGLE

NO

50 MHz

.7 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

40

SILICON

60 V

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

KST2484TI

Samsung

NPN

SINGLE

YES

.05 A

PLASTIC/EPOXY

AMPLIFIER

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

250

SILICON

60 V

DUAL

R-PDSO-G3

Not Qualified

LOW NOISE

KST3903TF

Samsung

NPN

SINGLE

YES

250 MHz

.2 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

50

SILICON

40 V

DUAL

R-PDSO-G3

Not Qualified

KSC1815-G

Samsung

NPN

SINGLE

NO

80 MHz

.15 A

PLASTIC/EPOXY

AMPLIFIER

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

200

SILICON

50 V

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

KSA1243-O

Samsung

PNP

SINGLE

NO

100 MHz

3 A

PLASTIC/EPOXY

AMPLIFIER

.8 V

THROUGH-HOLE

RECTANGULAR

1

3

IN-LINE

10 W

70

150 Cel

SILICON

30 V

SINGLE

R-PSIP-T3

Not Qualified

KSA916-Y

Samsung

PNP

SINGLE

NO

120 MHz

.8 A

PLASTIC/EPOXY

AMPLIFIER

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

120

SILICON

120 V

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

KSC3265TR

Samsung

NPN

SINGLE

YES

120 MHz

.8 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

100

SILICON

25 V

DUAL

R-PDSO-G3

Not Qualified

KSR1003

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

56

SILICON

50 V

BOTTOM

O-PBCY-T3

Not Qualified

BUILT-IN BIAS RESISTOR RATIO IS 1

TO-92

KSA642-O

Samsung

PNP

SINGLE

NO

.3 A

PLASTIC/EPOXY

AMPLIFIER

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

70

SILICON

25 V

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