1 W Small Signal Bipolar Junction Transistors (BJT) 944

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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

2N3244

Texas Instruments

PNP

SINGLE

NO

175 MHz

1 W

1 A

METAL

SWITCHING

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

25

175 Cel

SILICON

40 V

50 ns

185 ns

BOTTOM

O-MBCY-W3

COLLECTOR

Not Qualified

TO-39

NOT SPECIFIED

NOT SPECIFIED

2N6461

Texas Instruments

NPN

SINGLE

NO

70 MHz

1 W

.1 A

METAL

SWITCHING

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

20

200 Cel

SILICON

300 V

BOTTOM

O-MBCY-W3

COLLECTOR

Not Qualified

TO-39

NOT SPECIFIED

NOT SPECIFIED

2N1050B

Texas Instruments

NPN

SINGLE

NO

.125 MHz

1 W

.75 A

METAL

SWITCHING

WIRE

ROUND

1

3

POST/STUD MOUNT

Other Transistors

30

200 Cel

SILICON

BOTTOM

O-MBPM-W3

COLLECTOR

Not Qualified

2N3253

Texas Instruments

NPN

SINGLE

NO

175 MHz

1 W

1 A

METAL

SWITCHING

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

20

175 Cel

SILICON

40 V

50 ns

70 ns

BOTTOM

O-MBCY-W3

COLLECTOR

Not Qualified

TO-39

NOT SPECIFIED

NOT SPECIFIED

2N5059

Texas Instruments

NPN

SINGLE

NO

30 MHz

1 W

.15 A

METAL

SWITCHING

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

30

175 Cel

SILICON

250 V

BOTTOM

O-MBCY-W3

COLLECTOR

Not Qualified

TO-39

NOT SPECIFIED

NOT SPECIFIED

2N343

Texas Instruments

NPN

SINGLE

NO

1 W

.06 A

METAL

AMPLIFIER

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

150 Cel

SILICON

60 V

BOTTOM

O-MBCY-W3

ISOLATED

Not Qualified

TO-11

NOT SPECIFIED

NOT SPECIFIED

2N1049

Texas Instruments

NPN

SINGLE

NO

1 W

.5 A

METAL

SWITCHING

WIRE

ROUND

1

3

POST/STUD MOUNT

Other Transistors

30

200 Cel

SILICON

BOTTOM

O-MBPM-W3

COLLECTOR

Not Qualified

2N2102A

Texas Instruments

NPN

SINGLE

NO

60 MHz

1 W

1 A

METAL

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

20

200 Cel

SILICON

65 V

BOTTOM

O-MBCY-W3

COLLECTOR

Not Qualified

TO-39

NOT SPECIFIED

NOT SPECIFIED

2N3724A

Texas Instruments

NPN

SINGLE

NO

300 MHz

1 W

1.2 A

METAL

SWITCHING

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

25

175 Cel

SILICON

30 V

30 ns

50 ns

BOTTOM

O-MBCY-W3

COLLECTOR

Not Qualified

HIGH CURRENT DRIVER

TO-39

NOT SPECIFIED

NOT SPECIFIED

2N3735

Texas Instruments

NPN

SINGLE

NO

250 MHz

1 W

1.5 A

METAL

SWITCHING

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

20

200 Cel

SILICON

50 V

48 ns

60 ns

BOTTOM

O-MBCY-W3

COLLECTOR

Not Qualified

LOW NOISE

TO-39

NOT SPECIFIED

NOT SPECIFIED

2N3734

Texas Instruments

NPN

SINGLE

NO

300 MHz

1 W

1.5 A

METAL

SWITCHING

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

30

200 Cel

SILICON

30 V

48 ns

60 ns

BOTTOM

O-MBCY-W3

COLLECTOR

Not Qualified

LOW NOISE

TO-39

NOT SPECIFIED

NOT SPECIFIED

2N3725A

Texas Instruments

NPN

SINGLE

NO

300 MHz

1 W

1.2 A

METAL

SWITCHING

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

20

175 Cel

SILICON

50 V

30 ns

50 ns

BOTTOM

O-MBCY-W3

COLLECTOR

Not Qualified

HIGH CURRENT DRIVER

TO-39

NOT SPECIFIED

NOT SPECIFIED

2N3719

Texas Instruments

PNP

SINGLE

NO

60 MHz

1 W

3 A

METAL

SWITCHING

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

25

200 Cel

SILICON

40 V

100 ns

400 ns

BOTTOM

O-MBCY-W3

COLLECTOR

Not Qualified

TO-5

NOT SPECIFIED

NOT SPECIFIED

2N3720

Texas Instruments

PNP

SINGLE

NO

60 MHz

1 W

3 A

METAL

SWITCHING

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

25

200 Cel

SILICON

60 V

100 ns

400 ns

BOTTOM

O-MBCY-W3

COLLECTOR

Not Qualified

TO-5

NOT SPECIFIED

NOT SPECIFIED

2N3724

Texas Instruments

NPN

SINGLE

NO

300 MHz

1 W

.5 A

METAL

SWITCHING

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

30

175 Cel

SILICON

30 V

35 ns

60 ns

BOTTOM

O-MBCY-W3

COLLECTOR

Not Qualified

HIGH CURRENT DRIVER

TO-39

NOT SPECIFIED

NOT SPECIFIED

2N2989

Texas Instruments

NPN

SINGLE

NO

50 MHz

1 W

1 A

METAL

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

40

200 Cel

SILICON

80 V

BOTTOM

O-MBCY-W3

COLLECTOR

Not Qualified

TO-5

NOT SPECIFIED

NOT SPECIFIED

2N5148

Texas Instruments

NPN

SINGLE

NO

50 MHz

1 W

2 A

METAL

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

5

175 Cel

SILICON

80 V

BOTTOM

O-MBCY-W3

COLLECTOR

Not Qualified

TO-39

NOT SPECIFIED

NOT SPECIFIED

2N5151

Texas Instruments

PNP

SINGLE

NO

60 MHz

1 W

5 A

METAL

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

20

175 Cel

SILICON

80 V

BOTTOM

O-MBCY-W3

COLLECTOR

Not Qualified

TO-39

NOT SPECIFIED

NOT SPECIFIED

2N2988

Texas Instruments

NPN

SINGLE

NO

50 MHz

1 W

1 A

METAL

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

20

200 Cel

SILICON

100 V

BOTTOM

O-MBCY-W3

COLLECTOR

Not Qualified

TO-5

NOT SPECIFIED

NOT SPECIFIED

2N2990

Texas Instruments

NPN

SINGLE

NO

50 MHz

1 W

1 A

METAL

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

40

200 Cel

SILICON

100 V

BOTTOM

O-MBCY-W3

COLLECTOR

Not Qualified

TO-5

NOT SPECIFIED

NOT SPECIFIED

2N5153

Texas Instruments

PNP

SINGLE

NO

70 MHz

1 W

5 A

METAL

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

40

175 Cel

SILICON

80 V

BOTTOM

O-MBCY-W3

COLLECTOR

Not Qualified

TO-39

NOT SPECIFIED

NOT SPECIFIED

2N5150

Texas Instruments

NPN

SINGLE

NO

60 MHz

1 W

2 A

METAL

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

15

175 Cel

SILICON

80 V

BOTTOM

O-MBCY-W3

COLLECTOR

Not Qualified

TO-39

NOT SPECIFIED

NOT SPECIFIED

2N5147

Texas Instruments

PNP

SINGLE

NO

50 MHz

1 W

2 A

METAL

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

5

175 Cel

SILICON

80 V

BOTTOM

O-MBCY-W3

COLLECTOR

Not Qualified

TO-39

NOT SPECIFIED

NOT SPECIFIED

2N5154

Texas Instruments

NPN

SINGLE

NO

70 MHz

1 W

2 A

METAL

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

40

175 Cel

SILICON

80 V

BOTTOM

O-MBCY-W3

COLLECTOR

Not Qualified

TO-39

NOT SPECIFIED

NOT SPECIFIED

2N5149

Texas Instruments

PNP

SINGLE

NO

60 MHz

1 W

2 A

METAL

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

15

175 Cel

SILICON

80 V

BOTTOM

O-MBCY-W3

COLLECTOR

Not Qualified

TO-39

NOT SPECIFIED

NOT SPECIFIED

2N2987

Texas Instruments

NPN

SINGLE

NO

50 MHz

1 W

1 A

METAL

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

20

200 Cel

SILICON

80 V

BOTTOM

O-MBCY-W3

COLLECTOR

Not Qualified

TO-5

NOT SPECIFIED

NOT SPECIFIED

2N4001

Texas Instruments

NPN

SINGLE

NO

40 MHz

1 W

1 A

METAL

SWITCHING

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

20

175 Cel

SILICON

100 V

300 ns

2000 ns

BOTTOM

O-MBCY-W3

COLLECTOR

Not Qualified

TO-5

NOT SPECIFIED

NOT SPECIFIED

2N4000

Texas Instruments

NPN

SINGLE

NO

40 MHz

1 W

1 A

METAL

SWITCHING

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

10

175 Cel

SILICON

80 V

300 ns

2000 ns

BOTTOM

O-MBCY-W3

COLLECTOR

Not Qualified

TO-5

NOT SPECIFIED

NOT SPECIFIED

JAN2N3637L

Onsemi

PNP

SINGLE

NO

1 W

1 A

METAL

SWITCHING

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

60

200 Cel

SILICON

175 V

200 ns

650 ns

BOTTOM

O-MBCY-W3

Not Qualified

TO-5

MIL-19500/357H

MPSW06RLRAG

Onsemi

NPN

SINGLE

NO

50 MHz

1 W

.5 A

PLASTIC/EPOXY

AMPLIFIER

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

Other Transistors

60

150 Cel

SILICON

80 V

TIN SILVER COPPER

BOTTOM

O-PBCY-T3

Not Qualified

TO-226

e1

260

MPSW56RLRAG

Onsemi

PNP

SINGLE

NO

50 MHz

1 W

.5 A

PLASTIC/EPOXY

AMPLIFIER

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

Other Transistors

50

150 Cel

SILICON

80 V

TIN SILVER COPPER

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

e1

260

BDC01DRL1G

Onsemi

NPN

SINGLE

NO

50 MHz

1 W

.5 A

PLASTIC/EPOXY

AMPLIFIER

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

Other Transistors

25

150 Cel

SILICON

100 V

TIN SILVER COPPER

BOTTOM

O-PBCY-T3

Not Qualified

EUROPEAN PART NUMBER

TO-92

e1

260

BC212BG

Onsemi

PNP

SINGLE

NO

280 MHz

1 W

.1 A

PLASTIC/EPOXY

AMPLIFIER

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

Other Transistors

60

150 Cel

SILICON

50 V

TIN SILVER COPPER

BOTTOM

O-PBCY-T3

Not Qualified

TO-226AA

e1

260

MPSW51ARLRAG

Onsemi

PNP

SINGLE

NO

50 MHz

1 W

1 A

PLASTIC/EPOXY

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

Other Transistors

50

150 Cel

SILICON

40 V

TIN SILVER COPPER

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

e1

260

MPSW14

Onsemi

NPN

DARLINGTON

NO

125 MHz

1 W

1 A

PLASTIC/EPOXY

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

Other Transistors

20000

150 Cel

SILICON

TIN LEAD

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

e0

235

KSC2331YTA

Onsemi

NPN

SINGLE

NO

50 MHz

1 W

.7 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

Other Transistors

120

150 Cel

SILICON

60 V

MATTE TIN

BOTTOM

O-PBCY-T3

Not Qualified

e3

TN2219AJ18Z

Onsemi

NPN

SINGLE

NO

.1 MHz

1 W

1 A

PLASTIC/EPOXY

SWITCHING

1 V

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

1 W

100

150 Cel

8 pF

SILICON

40 V

35 ns

-55 Cel

285 ns

BOTTOM

O-PBCY-T3

TO-226AE

KSC2328AOTA

Onsemi

NPN

SINGLE

NO

120 MHz

1 W

2 A

PLASTIC/EPOXY

AMPLIFIER

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

Other Transistors

100

150 Cel

SILICON

30 V

MATTE TIN

BOTTOM

O-PBCY-T3

Not Qualified

e3

TN2219A

Onsemi

NPN

SINGLE

NO

.1 MHz

1 W

1 A

PLASTIC/EPOXY

SWITCHING

1 V

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

1 W

100

150 Cel

8 pF

SILICON

40 V

35 ns

-55 Cel

285 ns

BOTTOM

O-PBCY-T3

TO-226AE

KSA1201Y

Onsemi

PNP

SINGLE

YES

120 MHz

1 W

.8 A

PLASTIC/EPOXY

AMPLIFIER

1 V

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

.5 W

120

150 Cel

30 pF

SILICON

120 V

SINGLE

R-PSSO-F3

MPSW13RLRA

Onsemi

NPN

DARLINGTON

NO

125 MHz

1 W

1 A

PLASTIC/EPOXY

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

Other Transistors

10000

150 Cel

SILICON

TIN LEAD

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

e0

235

TN2219AD27Z

Onsemi

NPN

SINGLE

NO

.1 MHz

1 W

1 A

PLASTIC/EPOXY

SWITCHING

1 V

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

1 W

100

150 Cel

8 pF

SILICON

40 V

35 ns

-55 Cel

285 ns

BOTTOM

O-PBCY-T3

TO-226AE

KSC2328AYBU

Onsemi

NPN

SINGLE

NO

120 MHz

1 W

2 A

PLASTIC/EPOXY

AMPLIFIER

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

Other Transistors

160

150 Cel

SILICON

30 V

MATTE TIN

BOTTOM

O-PBCY-T3

Not Qualified

e3

NZT6728

Onsemi

PNP

SINGLE

YES

50 MHz

1 W

1.2 A

PLASTIC/EPOXY

SWITCHING

.5 V

GULL WING

RECTANGULAR

1

4

SMALL OUTLINE

Other Transistors

1 W

20

150 Cel

30 pF

SILICON

60 V

Tin/Lead (Sn/Pb)

DUAL

R-PDSO-G4

COLLECTOR

Not Qualified

TO-261

e0

MPSW51

Onsemi

PNP

SINGLE

NO

50 MHz

1 W

1 A

PLASTIC/EPOXY

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

Other Transistors

50

150 Cel

SILICON

30 V

TIN LEAD

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

e0

235

KSC2330O

Onsemi

NPN

SINGLE

NO

50 MHz

1 W

.1 A

PLASTIC/EPOXY

AMPLIFIER

.5 V

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

1 W

70

150 Cel

SILICON

300 V

BOTTOM

O-PBCY-T3

TO-92

KSA1281O

Onsemi

PNP

SINGLE

NO

100 MHz

1 W

2 A

PLASTIC/EPOXY

AMPLIFIER

.5 V

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

70

150 Cel

SILICON

50 V

BOTTOM

O-PBCY-T3

TO-92

KSA1201

Onsemi

PNP

SINGLE

YES

120 MHz

1 W

.8 A

PLASTIC/EPOXY

AMPLIFIER

1 V

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

.5 W

80

150 Cel

30 pF

SILICON

120 V

SINGLE

R-PSSO-F3

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