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

KSA542-R

Samsung

PNP

SINGLE

NO

100 MHz

.05 A

PLASTIC/EPOXY

AMPLIFIER

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

40

SILICON

25 V

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

KSR1101TR

Samsung

NPN

SINGLE WITH BUILT-IN RESISTOR

YES

250 MHz

.1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

20

SILICON

50 V

DUAL

R-PDSO-G3

Not Qualified

DIGITAL, BUILT-IN BIAS RESISTOR RATIO IS 1

KSA1370-D

Samsung

PNP

SINGLE

NO

150 MHz

.1 A

PLASTIC/EPOXY

AMPLIFIER

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

60

SILICON

200 V

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

KSA1241-I

Samsung

PNP

SINGLE

NO

100 MHz

2 A

PLASTIC/EPOXY

AMPLIFIER

THROUGH-HOLE

RECTANGULAR

1

3

IN-LINE

40

SILICON

50 V

SINGLE

R-PSIP-T3

Not Qualified

KSC3076-I

Samsung

NPN

SINGLE

NO

100 MHz

2 A

PLASTIC/EPOXY

AMPLIFIER

THROUGH-HOLE

RECTANGULAR

1

3

IN-LINE

40

SILICON

50 V

SINGLE

R-PSIP-T3

Not Qualified

KSA1242-Y

Samsung

PNP

SINGLE

NO

180 MHz

5 A

PLASTIC/EPOXY

AMPLIFIER

1 V

THROUGH-HOLE

RECTANGULAR

1

3

IN-LINE

10 W

160

150 Cel

SILICON

20 V

SINGLE

R-PSIP-T3

Not Qualified

KST13TF

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

KSR1013

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 21.3636

TO-92

KSR2006

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

68

SILICON

50 V

BOTTOM

O-PBCY-T3

Not Qualified

BUILT-IN BIAS RESISTOR RATIO IS 4.7

TO-92

KSC2874

Samsung

NPN

SINGLE

NO

110 MHz

.05 A

PLASTIC/EPOXY

SWITCHING

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

200

SILICON

120 V

TIN LEAD

BOTTOM

O-PBCY-W3

Not Qualified

e0

KST3903

Samsung

NPN

SINGLE

YES

250 MHz

.35 W

.2 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

15

SILICON

40 V

70 ns

225 ns

DUAL

R-PDSO-G3

Not Qualified

KSR2111TR

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

S1P2655A03-D0B0

Samsung

NPN

COMPLEX

NO

.5 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

RECTANGULAR

7

16

IN-LINE

1000

SILICON

50 V

250 ns

250 ns

DUAL

R-PDIP-T16

Not Qualified

KSR2202

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

30

SILICON

50 V

SINGLE

R-PSIP-T3

Not Qualified

BUILT-IN BIAS RESISTOR RATIO IS 1

KSR2111TF

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

KSC1008

Samsung

NPN

SINGLE

NO

50 MHz

.8 W

.7 A

PLASTIC/EPOXY

SWITCHING

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

40

150 Cel

SILICON

60 V

BOTTOM

O-PBCY-W3

Not Qualified

TO-92

KSA910

Samsung

PNP

SINGLE

NO

100 MHz

.8 W

.05 A

PLASTIC/EPOXY

SWITCHING

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

40

150 Cel

SILICON

150 V

BOTTOM

O-PBCY-W3

Not Qualified

KSC900-G

Samsung

NPN

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

LOW NOISE

TO-92

KSD5041-O

Samsung

NPN

SINGLE

NO

150 MHz

5 A

PLASTIC/EPOXY

AMPLIFIER

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

180

SILICON

20 V

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

KSR2008

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

56

SILICON

50 V

BOTTOM

O-PBCY-T3

Not Qualified

BUILT-IN BIAS RESISTOR RATIO IS 0.468

TO-92

KSA1203-O

Samsung

PNP

SINGLE

YES

120 MHz

1.5 A

PLASTIC/EPOXY

AMPLIFIER

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

100

SILICON

30 V

SINGLE

R-PSSO-F3

Not Qualified

KSA910-O

Samsung

PNP

SINGLE

NO

100 MHz

.05 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

70

SILICON

150 V

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

BC309-A

Samsung

PNP

SINGLE

NO

130 MHz

.1 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

120

SILICON

25 V

BOTTOM

O-PBCY-T3

Not Qualified

LOW NOISE

TO-92

KST1009F3TF

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

KSR2103TF

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

KSR1205

Samsung

NPN

SINGLE WITH BUILT-IN RESISTOR

NO

250 MHz

.1 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

RECTANGULAR

1

3

IN-LINE

BIP General Purpose Small Signal

30

SILICON

50 V

SINGLE

R-PSIP-T3

Not Qualified

BUILT-IN BIAS RESISTOR RATIO IS 2.127

KSR2108TI

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 0.468

KSC2328A

Samsung

NPN

SINGLE

NO

120 MHz

1 W

2 A

PLASTIC/EPOXY

AMPLIFIER

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

100

150 Cel

SILICON

30 V

BOTTOM

O-PBCY-W3

Not Qualified

KSC921

Samsung

NPN

SINGLE

NO

250 MHz

.2 W

.1 A

PLASTIC/EPOXY

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

40

150 Cel

SILICON

30 V

TIN LEAD

BOTTOM

O-PBCY-W3

Not Qualified

TO-92

e0

KSA1156-R

Samsung

PNP

SINGLE

NO

.5 A

PLASTIC/EPOXY

SWITCHING

1 V

THROUGH-HOLE

RECTANGULAR

1

3

FLANGE MOUNT

10 W

40

150 Cel

SILICON

400 V

1000 ns

5000 ns

SINGLE

R-PSFM-T3

ISOLATED

Not Qualified

TO-126

KST12TI

Samsung

NPN

SINGLE

YES

.3 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

10000

SILICON

30 V

DUAL

R-PDSO-G3

Not Qualified

KSC388

Samsung

NPN

SINGLE

NO

300 MHz

.3 W

.05 A

PLASTIC/EPOXY

AMPLIFIER

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

20

150 Cel

SILICON

25 V

BOTTOM

O-PBCY-W3

Not Qualified

TO-92

KST5088TF

Samsung

NPN

SINGLE

YES

.05 A

PLASTIC/EPOXY

AMPLIFIER

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

300

SILICON

30 V

DUAL

R-PDSO-G3

Not Qualified

LOW NOISE

KSR2105TI

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 2.127

KST63TF

Samsung

PNP

DARLINGTON

YES

.3 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

10000

SILICON

30 V

DUAL

R-PDSO-G3

Not Qualified

KSC839-G

Samsung

NPN

SINGLE

NO

200 MHz

.1 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

200

SILICON

30 V

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

KSR1107TR

Samsung

NPN

SINGLE WITH BUILT-IN RESISTOR

YES

250 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 2.1363

KSR2109

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

100

SILICON

40 V

DUAL

R-PDSO-G3

Not Qualified

BUILT-IN BIAS RESISTOR

KST3906TF

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

KSC184-L

Samsung

NPN

SINGLE

NO

100 MHz

.05 A

PLASTIC/EPOXY

AMPLIFIER

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

350

SILICON

25 V

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

KST812M4TR

Samsung

PNP

SINGLE

YES

.1 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

90

SILICON

40 V

DUAL

R-PDSO-G3

Not Qualified

KSC2884

Samsung

NPN

SINGLE

YES

110 MHz

.8 A

PLASTIC/EPOXY

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

100

SILICON

30 V

TIN LEAD

SINGLE

R-PSSO-F3

Not Qualified

e0

KST1623L5

Samsung

NPN

SINGLE

YES

200 MHz

.35 W

.1 A

PLASTIC/EPOXY

AMPLIFIER

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

135

SILICON

40 V

DUAL

R-PDSO-G3

Not Qualified

KSC2880

Samsung

NPN

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

KST1623L4TR

Samsung

NPN

SINGLE

YES

.1 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

90

SILICON

40 V

DUAL

R-PDSO-G3

Not Qualified

KST812M5TF

Samsung

PNP

SINGLE

YES

.1 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

135

SILICON

40 V

DUAL

R-PDSO-G3

Not Qualified

KSD227-O

Samsung

NPN

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

KSR2212

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

100

SILICON

40 V

SINGLE

R-PSIP-T3

Not Qualified

BUILT-IN BIAS RESISTOR

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